Python object_detection.core.box_coder.BoxCoder() Examples

The following are 30 code examples of object_detection.core.box_coder.BoxCoder(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module object_detection.core.box_coder , or try the search function .
Example #1
Source File: target_assigner.py    From AniSeg with Apache License 2.0 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               negative_class_weight=1.0, unmatched_cls_target=None):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #2
Source File: target_assigner.py    From hands-detection with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Multibox Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #3
Source File: target_assigner.py    From hands-detection with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into core.
# Therefore its best to have this factory method outside of core.
Example #4
Source File: target_assigner.py    From object_detection_kitti with Apache License 2.0 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Multibox Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #5
Source File: target_assigner.py    From object_detection_kitti with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into core.
# Therefore its best to have this factory method outside of core.
Example #6
Source File: target_assigner.py    From MBMD with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Multibox Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #7
Source File: target_assigner.py    From MBMD with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into core.
# Therefore its best to have this factory method outside of core.
Example #8
Source File: target_assigner.py    From Elphas with Apache License 2.0 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               negative_class_weight=1.0, unmatched_cls_target=None):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #9
Source File: target_assigner.py    From Elphas with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #10
Source File: target_assigner.py    From object_detection_with_tensorflow with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #11
Source File: target_assigner.py    From object_detection_with_tensorflow with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #12
Source File: target_assigner.py    From object_detection_with_tensorflow with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #13
Source File: target_assigner.py    From object_detection_with_tensorflow with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #14
Source File: target_assigner.py    From monopsr with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
                 negative_class_weight=1.0, unmatched_cls_target=None):
        """Construct Object Detection Target Assigner.

        Args:
          similarity_calc: a RegionSimilarityCalculator
          matcher: an object_detection.core.Matcher used to match groundtruth to
            anchors.
          box_coder: an object_detection.core.BoxCoder used to encode matching
            groundtruth boxes with respect to anchors.
          negative_class_weight: classification weight to be associated to negative
            anchors (default: 1.0). The weight must be in [0., 1.].
          unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
            which is consistent with the classification target for each
            anchor (and can be empty for scalar targets).  This shape must thus be
            compatible with the groundtruth labels that are passed to the "assign"
            function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
            If set to None, unmatched_cls_target is set to be [0] for each anchor.

        Raises:
          ValueError: if similarity_calc is not a RegionSimilarityCalculator or
            if matcher is not a Matcher or if box_coder is not a BoxCoder
        """
        if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
            raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
        if not isinstance(matcher, mat.Matcher):
            raise ValueError('matcher must be a Matcher')
        if not isinstance(box_coder, bcoder.BoxCoder):
            raise ValueError('box_coder must be a BoxCoder')
        self._similarity_calc = similarity_calc
        self._matcher = matcher
        self._box_coder = box_coder
        self._negative_class_weight = negative_class_weight
        if unmatched_cls_target is None:
            self._unmatched_cls_target = tf.constant([0], tf.float32)
        else:
            self._unmatched_cls_target = unmatched_cls_target
Example #15
Source File: target_assigner.py    From monopsr with MIT License 5 votes vote down vote up 
def get_box_coder(self):
        """Get BoxCoder of this TargetAssigner.

        Returns:
          BoxCoder object.
        """
        return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #16
Source File: target_assigner.py    From moveo_ros with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into core.
# Therefore its best to have this factory method outside of core.
Example #17
Source File: target_assigner.py    From AniSeg with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #18
Source File: target_assigner.py    From MAX-Object-Detector with Apache License 2.0 5 votes vote down vote up 
def __init__(self,
               similarity_calc,
               matcher,
               box_coder,
               negative_class_weight=1.0):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
Example #19
Source File: target_assigner.py    From MAX-Object-Detector with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #20
Source File: target_assigner.py    From Accident-Detection-on-Indian-Roads with GNU Affero General Public License v3.0 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               negative_class_weight=1.0):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
Example #21
Source File: target_assigner.py    From Accident-Detection-on-Indian-Roads with GNU Affero General Public License v3.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #22
Source File: target_assigner.py    From g-tensorflow-models with Apache License 2.0 5 votes vote down vote up 
def __init__(self,
               similarity_calc,
               matcher,
               box_coder,
               negative_class_weight=1.0):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
Example #23
Source File: target_assigner.py    From g-tensorflow-models with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #24
Source File: target_assigner.py    From models with Apache License 2.0 5 votes vote down vote up 
def __init__(self,
               similarity_calc,
               matcher,
               box_coder_instance,
               negative_class_weight=1.0):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder_instance: an object_detection.core.BoxCoder used to encode
        matching groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder_instance, box_coder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder_instance
    self._negative_class_weight = negative_class_weight
Example #25
Source File: target_assigner.py    From models with Apache License 2.0 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #26
Source File: target_assigner.py    From motion-rcnn with MIT License 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Multibox Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target
Example #27
Source File: target_assigner.py    From motion-rcnn with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder: BoxCoder object.
    """
    return self._box_coder


# TODO: This method pulls in all the implementation dependencies into core.
# Therefore its best to have this factory method outside of core.
Example #28
Source File: target_assigner.py    From multilabel-image-classification-tensorflow with MIT License 5 votes vote down vote up 
def __init__(self,
               similarity_calc,
               matcher,
               box_coder,
               negative_class_weight=1.0,
               weight_regression_loss_by_score=False):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0). The weight must be in [0., 1.].
      weight_regression_loss_by_score: Whether to weight the regression loss by
        ground truth box score.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._negative_class_weight = negative_class_weight
    self._weight_regression_loss_by_score = weight_regression_loss_by_score
Example #29
Source File: target_assigner.py    From multilabel-image-classification-tensorflow with MIT License 5 votes vote down vote up 
def get_box_coder(self):
    """Get BoxCoder of this TargetAssigner.

    Returns:
      BoxCoder object.
    """
    return self._box_coder


# TODO(rathodv): This method pulls in all the implementation dependencies into
# core. Therefore its best to have this factory method outside of core.
Example #30
Source File: target_assigner.py    From yolo_v2 with Apache License 2.0 5 votes vote down vote up 
def __init__(self, similarity_calc, matcher, box_coder,
               positive_class_weight=1.0, negative_class_weight=1.0,
               unmatched_cls_target=None):
    """Construct Object Detection Target Assigner.

    Args:
      similarity_calc: a RegionSimilarityCalculator
      matcher: an object_detection.core.Matcher used to match groundtruth to
        anchors.
      box_coder: an object_detection.core.BoxCoder used to encode matching
        groundtruth boxes with respect to anchors.
      positive_class_weight: classification weight to be associated to positive
        anchors (default: 1.0)
      negative_class_weight: classification weight to be associated to negative
        anchors (default: 1.0)
      unmatched_cls_target: a float32 tensor with shape [d_1, d_2, ..., d_k]
        which is consistent with the classification target for each
        anchor (and can be empty for scalar targets).  This shape must thus be
        compatible with the groundtruth labels that are passed to the "assign"
        function (which have shape [num_gt_boxes, d_1, d_2, ..., d_k]).
        If set to None, unmatched_cls_target is set to be [0] for each anchor.

    Raises:
      ValueError: if similarity_calc is not a RegionSimilarityCalculator or
        if matcher is not a Matcher or if box_coder is not a BoxCoder
    """
    if not isinstance(similarity_calc, sim_calc.RegionSimilarityCalculator):
      raise ValueError('similarity_calc must be a RegionSimilarityCalculator')
    if not isinstance(matcher, mat.Matcher):
      raise ValueError('matcher must be a Matcher')
    if not isinstance(box_coder, bcoder.BoxCoder):
      raise ValueError('box_coder must be a BoxCoder')
    self._similarity_calc = similarity_calc
    self._matcher = matcher
    self._box_coder = box_coder
    self._positive_class_weight = positive_class_weight
    self._negative_class_weight = negative_class_weight
    if unmatched_cls_target is None:
      self._unmatched_cls_target = tf.constant([0], tf.float32)
    else:
      self._unmatched_cls_target = unmatched_cls_target