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author | 2018-07-30 17:13:09 -0700 | |
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committer | 2018-07-30 17:16:55 -0700 | |
commit | 8566d9e6fa7dbe3660339befe8b0a3344d24ef2b (patch) | |
tree | 54143734f9b19a9ead1a23784f75dcd2009d1452 /tensorflow/compiler/tests/image_ops_test.py | |
parent | 8fee2e4b7c915d952332dc8cc9be7cfefea35162 (diff) |
Adds a NonMaxSuppressionV4 op, with a corresponding TF2XLA implementation.
PiperOrigin-RevId: 206673787
Diffstat (limited to 'tensorflow/compiler/tests/image_ops_test.py')
-rw-r--r-- | tensorflow/compiler/tests/image_ops_test.py | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/tensorflow/compiler/tests/image_ops_test.py b/tensorflow/compiler/tests/image_ops_test.py index 8b01ef96db..bf986ade06 100644 --- a/tensorflow/compiler/tests/image_ops_test.py +++ b/tensorflow/compiler/tests/image_ops_test.py @@ -26,6 +26,7 @@ import numpy as np from six.moves import xrange # pylint: disable=redefined-builtin from tensorflow.compiler.tests import xla_test +from tensorflow.python.compat import compat from tensorflow.python.framework import dtypes from tensorflow.python.framework import ops from tensorflow.python.ops import array_ops @@ -579,5 +580,140 @@ class ResizeBilinearTest(xla_test.XLATestCase): large_tolerance=True) +class NonMaxSuppressionTest(xla_test.XLATestCase): + + def testNMS128From1024(self): + # TODO(b/26783907): The Sort HLO is not implemented on CPU or GPU. + if self.device in ["XLA_CPU", "XLA_GPU"]: + return + + with compat.forward_compatibility_horizon(2018, 8, 8): + num_boxes = 1024 + boxes_np = np.random.normal(50, 10, (num_boxes, 4)).astype("f4") + scores_np = np.random.normal(0.5, 0.1, (num_boxes,)).astype("f4") + + max_output_size = 128 + iou_threshold_np = np.array(0.5, dtype=np.float32) + score_threshold_np = np.array(0.0, dtype=np.float32) + + with self.test_session() as sess: + boxes = array_ops.placeholder(boxes_np.dtype, shape=boxes_np.shape) + scores = array_ops.placeholder(scores_np.dtype, shape=scores_np.shape) + iou_threshold = array_ops.placeholder(iou_threshold_np.dtype, + iou_threshold_np.shape) + score_threshold = array_ops.placeholder(score_threshold_np.dtype, + score_threshold_np.shape) + with self.test_scope(): + selected_indices = image_ops.non_max_suppression_padded( + boxes=boxes, + scores=scores, + max_output_size=max_output_size, + iou_threshold=iou_threshold, + score_threshold=score_threshold, + pad_to_max_output_size=True) + inputs_feed = { + boxes: boxes_np, + scores: scores_np, + score_threshold: score_threshold_np, + iou_threshold: iou_threshold_np + } + (indices_tf, _) = sess.run(selected_indices, feed_dict=inputs_feed) + + self.assertEqual(indices_tf.size, max_output_size) + + def testNMS3From6Boxes(self): + # TODO(b/26783907): The Sort HLO is not implemented on CPU or GPU. + if self.device in ["XLA_CPU", "XLA_GPU"]: + return + + with compat.forward_compatibility_horizon(2018, 8, 8): + # Three boxes are selected based on IOU. + boxes_data = [[0, 0, 1, 1], [0, 0.1, 1, 1.1], [0, -0.1, 1, 0.9], + [0, 10, 1, 11], [0, 10.1, 1, 11.1], [0, 100, 1, 101]] + boxes_np = np.array(boxes_data, dtype=np.float32) + + scores_data = [0.9, 0.75, 0.6, 0.95, 0.5, 0.3] + scores_np = np.array(scores_data, dtype=np.float32) + + max_output_size = 3 + iou_threshold_np = np.array(0.5, dtype=np.float32) + score_threshold_np = np.array(0.0, dtype=np.float32) + + with self.test_session() as sess: + boxes = array_ops.placeholder(boxes_np.dtype, shape=boxes_np.shape) + scores = array_ops.placeholder(scores_np.dtype, shape=scores_np.shape) + iou_threshold = array_ops.placeholder(iou_threshold_np.dtype, + iou_threshold_np.shape) + score_threshold = array_ops.placeholder(score_threshold_np.dtype, + score_threshold_np.shape) + with self.test_scope(): + selected_indices = image_ops.non_max_suppression_padded( + boxes=boxes, + scores=scores, + max_output_size=max_output_size, + iou_threshold=iou_threshold, + score_threshold=score_threshold, + pad_to_max_output_size=True) + inputs_feed = { + boxes: boxes_np, + scores: scores_np, + score_threshold: score_threshold_np, + iou_threshold: iou_threshold_np + } + (indices_tf, num_valid) = sess.run( + selected_indices, feed_dict=inputs_feed) + + self.assertEqual(indices_tf.size, max_output_size) + self.assertEqual(num_valid, 3) + self.assertAllClose(indices_tf[:num_valid], [3, 0, 5]) + + def testNMS3Then2WithScoreThresh(self): + # Three boxes are selected based on IOU. + # One is filtered out by score threshold. + + # TODO(b/26783907): The Sort HLO is not implemented on CPU or GPU. + if self.device in ["XLA_CPU", "XLA_GPU"]: + return + + with compat.forward_compatibility_horizon(2018, 8, 8): + boxes_data = [[0, 0, 1, 1], [0, 0.1, 1, 1.1], [0, -0.1, 1, 0.9], + [0, 10, 1, 11], [0, 10.1, 1, 11.1], [0, 100, 1, 101]] + boxes_np = np.array(boxes_data, dtype=np.float32) + + scores_data = [0.9, 0.75, 0.6, 0.95, 0.5, 0.3] + scores_np = np.array(scores_data, dtype=np.float32) + max_output_size = 3 + iou_threshold_np = np.array(0.5, dtype=np.float32) + score_threshold_np = np.array(0.4, dtype=np.float32) + + with self.test_session() as sess: + boxes = array_ops.placeholder(boxes_np.dtype, shape=boxes_np.shape) + scores = array_ops.placeholder(scores_np.dtype, shape=scores_np.shape) + iou_threshold = array_ops.placeholder(iou_threshold_np.dtype, + iou_threshold_np.shape) + score_threshold = array_ops.placeholder(score_threshold_np.dtype, + score_threshold_np.shape) + with self.test_scope(): + selected_indices = image_ops.non_max_suppression_padded( + boxes=boxes, + scores=scores, + max_output_size=max_output_size, + iou_threshold=iou_threshold, + score_threshold=score_threshold, + pad_to_max_output_size=True) + inputs_feed = { + boxes: boxes_np, + scores: scores_np, + iou_threshold: iou_threshold_np, + score_threshold: score_threshold_np + } + (indices_tf, num_valid) = sess.run( + selected_indices, feed_dict=inputs_feed) + + self.assertEqual(indices_tf.size, max_output_size) + self.assertEqual(num_valid, 2) + self.assertAllClose(indices_tf[:num_valid], [3, 0]) + + if __name__ == "__main__": test.main() |