本文整理汇总了Python中object_detection.box_coders.faster_rcnn_box_coder.FasterRcnnBoxCoder方法的典型用法代码示例。如果您正苦于以下问题：Python faster_rcnn_box_coder.FasterRcnnBoxCoder方法的具体用法？Python faster_rcnn_box_coder.FasterRcnnBoxCoder怎么用？Python faster_rcnn_box_coder.FasterRcnnBoxCoder使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类object_detection.box_coders.faster_rcnn_box_coder的用法示例。
在下文中一共展示了faster_rcnn_box_coder.FasterRcnnBoxCoder方法的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def __init__(self):
similarity_calc = region_similarity_calculator.IouSimilarity()
matcher = argmax_matcher.ArgMaxMatcher(
matched_threshold=ssd_constants.MATCH_THRESHOLD,
unmatched_threshold=ssd_constants.MATCH_THRESHOLD,
negatives_lower_than_unmatched=True,
force_match_for_each_row=True)
box_coder = faster_rcnn_box_coder.FasterRcnnBoxCoder(
scale_factors=ssd_constants.BOX_CODER_SCALES)
self.default_boxes = DefaultBoxes()('ltrb')
self.default_boxes = box_list.BoxList(
tf.convert_to_tensor(self.default_boxes))
self.assigner = target_assigner.TargetAssigner(
similarity_calc, matcher, box_coder) 示例2: test_get_correct_relative_codes_after_encoding
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_get_correct_relative_codes_after_encoding(self):
boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]]
anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]]
expected_rel_codes = [[-0.5, -0.416666, -0.405465, -0.182321],
[-0.083333, -0.222222, -0.693147, -1.098612]]
boxes = box_list.BoxList(tf.constant(boxes))
anchors = box_list.BoxList(tf.constant(anchors))
coder = faster_rcnn_box_coder.FasterRcnnBoxCoder()
rel_codes = coder.encode(boxes, anchors)
with self.test_session() as sess:
rel_codes_out, = sess.run([rel_codes])
self.assertAllClose(rel_codes_out, expected_rel_codes) 示例3: test_get_correct_relative_codes_after_encoding_with_scaling
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_get_correct_relative_codes_after_encoding_with_scaling(self):
boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]]
anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]]
scale_factors = [2, 3, 4, 5]
expected_rel_codes = [[-1., -1.25, -1.62186, -0.911608],
[-0.166667, -0.666667, -2.772588, -5.493062]]
boxes = box_list.BoxList(tf.constant(boxes))
anchors = box_list.BoxList(tf.constant(anchors))
coder = faster_rcnn_box_coder.FasterRcnnBoxCoder(
scale_factors=scale_factors)
rel_codes = coder.encode(boxes, anchors)
with self.test_session() as sess:
rel_codes_out, = sess.run([rel_codes])
self.assertAllClose(rel_codes_out, expected_rel_codes) 示例4: test_get_correct_boxes_after_decoding
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_get_correct_boxes_after_decoding(self):
anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]]
rel_codes = [[-0.5, -0.416666, -0.405465, -0.182321],
[-0.083333, -0.222222, -0.693147, -1.098612]]
expected_boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]]
anchors = box_list.BoxList(tf.constant(anchors))
coder = faster_rcnn_box_coder.FasterRcnnBoxCoder()
boxes = coder.decode(rel_codes, anchors)
with self.test_session() as sess:
boxes_out, = sess.run([boxes.get()])
self.assertAllClose(boxes_out, expected_boxes) 示例5: test_get_correct_boxes_after_decoding_with_scaling
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_get_correct_boxes_after_decoding_with_scaling(self):
anchors = [[15.0, 12.0, 30.0, 18.0], [0.1, 0.0, 0.7, 0.9]]
rel_codes = [[-1., -1.25, -1.62186, -0.911608],
[-0.166667, -0.666667, -2.772588, -5.493062]]
scale_factors = [2, 3, 4, 5]
expected_boxes = [[10.0, 10.0, 20.0, 15.0], [0.2, 0.1, 0.5, 0.4]]
anchors = box_list.BoxList(tf.constant(anchors))
coder = faster_rcnn_box_coder.FasterRcnnBoxCoder(
scale_factors=scale_factors)
boxes = coder.decode(rel_codes, anchors)
with self.test_session() as sess:
boxes_out, = sess.run([boxes.get()])
self.assertAllClose(boxes_out, expected_boxes) 示例6: test_very_small_Width_nan_after_encoding
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_very_small_Width_nan_after_encoding(self):
boxes = [[10.0, 10.0, 10.0000001, 20.0]]
anchors = [[15.0, 12.0, 30.0, 18.0]]
expected_rel_codes = [[-0.833333, 0., -21.128731, 0.510826]]
boxes = box_list.BoxList(tf.constant(boxes))
anchors = box_list.BoxList(tf.constant(anchors))
coder = faster_rcnn_box_coder.FasterRcnnBoxCoder()
rel_codes = coder.encode(boxes, anchors)
with self.test_session() as sess:
rel_codes_out, = sess.run([rel_codes])
self.assertAllClose(rel_codes_out, expected_rel_codes) 示例7: test_build_faster_rcnn_box_coder_with_non_default_parameters
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_build_faster_rcnn_box_coder_with_non_default_parameters(self):
box_coder_text_proto = """
faster_rcnn_box_coder {
y_scale: 6.0
x_scale: 3.0
height_scale: 7.0
width_scale: 8.0
}
"""
box_coder_proto = box_coder_pb2.BoxCoder()
text_format.Merge(box_coder_text_proto, box_coder_proto)
box_coder_object = box_coder_builder.build(box_coder_proto)
self.assertTrue(isinstance(box_coder_object,
faster_rcnn_box_coder.FasterRcnnBoxCoder))
self.assertEqual(box_coder_object._scale_factors, [6.0, 3.0, 7.0, 8.0]) 示例8: build
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def build(box_coder_config):
"""Builds a box coder object based on the box coder config.
Args:
box_coder_config: A box_coder.proto object containing the config for the
desired box coder.
Returns:
BoxCoder based on the config.
Raises:
ValueError: On empty box coder proto.
"""
if not isinstance(box_coder_config, box_coder_pb2.BoxCoder):
raise ValueError('box_coder_config not of type box_coder_pb2.BoxCoder.')
if box_coder_config.WhichOneof('box_coder_oneof') == 'faster_rcnn_box_coder':
return faster_rcnn_box_coder.FasterRcnnBoxCoder(scale_factors=[
box_coder_config.faster_rcnn_box_coder.y_scale,
box_coder_config.faster_rcnn_box_coder.x_scale,
box_coder_config.faster_rcnn_box_coder.height_scale,
box_coder_config.faster_rcnn_box_coder.width_scale
])
if (box_coder_config.WhichOneof('box_coder_oneof') ==
'mean_stddev_box_coder'):
return mean_stddev_box_coder.MeanStddevBoxCoder()
if box_coder_config.WhichOneof('box_coder_oneof') == 'square_box_coder':
return square_box_coder.SquareBoxCoder(scale_factors=[
box_coder_config.square_box_coder.y_scale,
box_coder_config.square_box_coder.x_scale,
box_coder_config.square_box_coder.length_scale
])
raise ValueError('Empty box coder.') 示例9: test_build_faster_rcnn_box_coder_with_defaults
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_build_faster_rcnn_box_coder_with_defaults(self):
box_coder_text_proto = """
faster_rcnn_box_coder {
}
"""
box_coder_proto = box_coder_pb2.BoxCoder()
text_format.Merge(box_coder_text_proto, box_coder_proto)
box_coder_object = box_coder_builder.build(box_coder_proto)
self.assertIsInstance(box_coder_object,
faster_rcnn_box_coder.FasterRcnnBoxCoder)
self.assertEqual(box_coder_object._scale_factors, [10.0, 10.0, 5.0, 5.0]) 示例10: test_build_faster_rcnn_box_coder_with_non_default_parameters
# 需要导入模块: from object_detection.box_coders import faster_rcnn_box_coder [as 别名]
# 或者: from object_detection.box_coders.faster_rcnn_box_coder import FasterRcnnBoxCoder [as 别名]
def test_build_faster_rcnn_box_coder_with_non_default_parameters(self):
box_coder_text_proto = """
faster_rcnn_box_coder {
y_scale: 6.0
x_scale: 3.0
height_scale: 7.0
width_scale: 8.0
}
"""
box_coder_proto = box_coder_pb2.BoxCoder()
text_format.Merge(box_coder_text_proto, box_coder_proto)
box_coder_object = box_coder_builder.build(box_coder_proto)
self.assertIsInstance(box_coder_object,
faster_rcnn_box_coder.FasterRcnnBoxCoder)
self.assertEqual(box_coder_object._scale_factors, [6.0, 3.0, 7.0, 8.0])