tfm.vision.box_ops.filter_boxes_by_scores

Filter and remove boxes whose scores are smaller than the threshold.

boxes a tensor whose last dimension is 4 representing the coordinates of boxes in ymin, xmin, ymax, xmax order.
scores a tensor whose shape is the same as tf.shape(boxes)[:-1] representing the original scores of the boxes.
min_score_threshold a float representing the minimal box score threshold. Boxes whose score are smaller than it will be filtered out.

filtered_boxes a tensor whose shape is the same as boxes but with the position of the filtered boxes are filled with -1.
filtered_scores a tensor whose shape is the same as 'scores' but with the