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"""Tests for object_detection.box_coder.square_box_coder.""" |
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import tensorflow as tf |
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from object_detection.box_coders import square_box_coder |
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from object_detection.core import box_list |
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class SquareBoxCoderTest(tf.test.TestCase): |
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def test_correct_relative_codes_with_default_scale(self): |
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boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]] |
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anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]] |
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scale_factors = None |
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expected_rel_codes = [[-0.790569, -0.263523, -0.293893], |
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[-0.068041, -0.272166, -0.89588]] |
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boxes = box_list.BoxList(tf.constant(boxes)) |
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anchors = box_list.BoxList(tf.constant(anchors)) |
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coder = square_box_coder.SquareBoxCoder(scale_factors=scale_factors) |
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rel_codes = coder.encode(boxes, anchors) |
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with self.test_session() as sess: |
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(rel_codes_out,) = sess.run([rel_codes]) |
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self.assertAllClose(rel_codes_out, expected_rel_codes) |
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def test_correct_relative_codes_with_non_default_scale(self): |
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boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]] |
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anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]] |
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scale_factors = [2, 3, 4] |
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expected_rel_codes = [[-1.581139, -0.790569, -1.175573], |
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[-0.136083, -0.816497, -3.583519]] |
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boxes = box_list.BoxList(tf.constant(boxes)) |
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anchors = box_list.BoxList(tf.constant(anchors)) |
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coder = square_box_coder.SquareBoxCoder(scale_factors=scale_factors) |
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rel_codes = coder.encode(boxes, anchors) |
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with self.test_session() as sess: |
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(rel_codes_out,) = sess.run([rel_codes]) |
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self.assertAllClose(rel_codes_out, expected_rel_codes) |
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def test_correct_relative_codes_with_small_width(self): |
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boxes = [[10.0, 10.0, 10.0000001, 20.0]] |
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anchors = [[15.0, 12.0, 30.0, 18.0]] |
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scale_factors = None |
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expected_rel_codes = [[-1.317616, 0., -20.670586]] |
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boxes = box_list.BoxList(tf.constant(boxes)) |
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anchors = box_list.BoxList(tf.constant(anchors)) |
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coder = square_box_coder.SquareBoxCoder(scale_factors=scale_factors) |
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rel_codes = coder.encode(boxes, anchors) |
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with self.test_session() as sess: |
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(rel_codes_out,) = sess.run([rel_codes]) |
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self.assertAllClose(rel_codes_out, expected_rel_codes) |
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def test_correct_boxes_with_default_scale(self): |
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anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]] |
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rel_codes = [[-0.5, -0.416666, -0.405465], |
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[-0.083333, -0.222222, -0.693147]] |
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scale_factors = None |
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expected_boxes = [[14.594306, 7.884875, 20.918861, 14.209432], |
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[0.155051, 0.102989, 0.522474, 0.470412]] |
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anchors = box_list.BoxList(tf.constant(anchors)) |
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coder = square_box_coder.SquareBoxCoder(scale_factors=scale_factors) |
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boxes = coder.decode(rel_codes, anchors) |
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with self.test_session() as sess: |
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(boxes_out,) = sess.run([boxes.get()]) |
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self.assertAllClose(boxes_out, expected_boxes) |
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def test_correct_boxes_with_non_default_scale(self): |
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anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]] |
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rel_codes = [[-1., -1.25, -1.62186], [-0.166667, -0.666667, -2.772588]] |
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scale_factors = [2, 3, 4] |
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expected_boxes = [[14.594306, 7.884875, 20.918861, 14.209432], |
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[0.155051, 0.102989, 0.522474, 0.470412]] |
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anchors = box_list.BoxList(tf.constant(anchors)) |
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coder = square_box_coder.SquareBoxCoder(scale_factors=scale_factors) |
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boxes = coder.decode(rel_codes, anchors) |
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with self.test_session() as sess: |
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(boxes_out,) = sess.run([boxes.get()]) |
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self.assertAllClose(boxes_out, expected_boxes) |
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if __name__ == '__main__': |
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tf.test.main() |
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