bboxes.py 文件源码

python
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项目:seglink 作者: dengdan 项目源码 文件源码
def bboxes_filter_overlap(labels, bboxes,xs, ys, threshold, scope=None, assign_negative = False):
    """Filter out bounding boxes based on (relative )overlap with reference
    box [0, 0, 1, 1].  Remove completely bounding boxes, or assign negative
    labels to the one outside (useful for latter processing...).

    Return:
      labels, bboxes: Filtered (or newly assigned) elements.
    """
    with tf.name_scope(scope, 'bboxes_filter', [labels, bboxes]):
        scores = bboxes_intersection(tf.constant([0, 0, 1, 1], bboxes.dtype),bboxes)

        mask = scores > threshold
        if assign_negative:
            labels = tf.where(mask, labels, -labels)
        else:
            labels = tf.boolean_mask(labels, mask)
            bboxes = tf.boolean_mask(bboxes, mask)
            scores = bboxes_intersection(tf.constant([0, 0, 1, 1], bboxes.dtype),bboxes)
            xs = tf.boolean_mask(xs, mask);
            ys = tf.boolean_mask(ys, mask);
        return labels, bboxes, xs, ys
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