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a2e83d1d
编写于
3月 05, 2019
作者:
J
jerrywgz
提交者:
ceci3
3月 07, 2019
浏览文件
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电子邮件补丁
差异文件
add box_coder_and_assign, test=develop
上级
69859718
变更
6
隐藏空白更改
内联
并排
Showing
6 changed file
with
562 addition
and
0 deletion
+562
-0
paddle/fluid/operators/detection/CMakeLists.txt
paddle/fluid/operators/detection/CMakeLists.txt
+1
-0
paddle/fluid/operators/detection/box_decoder_and_assign_op.cc
...le/fluid/operators/detection/box_decoder_and_assign_op.cc
+164
-0
paddle/fluid/operators/detection/box_decoder_and_assign_op.cu
...le/fluid/operators/detection/box_decoder_and_assign_op.cu
+147
-0
paddle/fluid/operators/detection/box_decoder_and_assign_op.h
paddle/fluid/operators/detection/box_decoder_and_assign_op.h
+103
-0
python/paddle/fluid/layers/detection.py
python/paddle/fluid/layers/detection.py
+51
-0
python/paddle/fluid/tests/unittests/test_box_decoder_and_assign_op.py
...e/fluid/tests/unittests/test_box_decoder_and_assign_op.py
+96
-0
未找到文件。
paddle/fluid/operators/detection/CMakeLists.txt
浏览文件 @
a2e83d1d
...
...
@@ -33,6 +33,7 @@ detection_library(rpn_target_assign_op SRCS rpn_target_assign_op.cc)
detection_library
(
generate_proposal_labels_op SRCS generate_proposal_labels_op.cc
)
detection_library
(
box_clip_op SRCS box_clip_op.cc box_clip_op.cu
)
detection_library
(
yolov3_loss_op SRCS yolov3_loss_op.cc
)
detection_library
(
box_decoder_and_assign_op SRCS box_decoder_and_assign_op.cc box_decoder_and_assign_op.cu
)
if
(
WITH_GPU
)
detection_library
(
generate_proposals_op SRCS generate_proposals_op.cc generate_proposals_op.cu DEPS memory cub
)
...
...
paddle/fluid/operators/detection/box_decoder_and_assign_op.cc
0 → 100644
浏览文件 @
a2e83d1d
/* Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include "paddle/fluid/operators/detection/box_decoder_and_assign_op.h"
namespace
paddle
{
namespace
operators
{
using
LoDTensor
=
framework
::
LoDTensor
;
class
BoxDecoderAndAssignOp
:
public
framework
::
OperatorWithKernel
{
public:
using
framework
::
OperatorWithKernel
::
OperatorWithKernel
;
protected:
void
InferShape
(
framework
::
InferShapeContext
*
ctx
)
const
override
{
PADDLE_ENFORCE
(
ctx
->
HasInput
(
"PriorBox"
),
"Input(PriorBox) of BoxDecoderAndAssignOp should not be null."
);
PADDLE_ENFORCE
(
ctx
->
HasInput
(
"PriorBoxVar"
),
"Input(PriorBoxVar) of BoxDecoderAndAssignOp should not be null."
);
PADDLE_ENFORCE
(
ctx
->
HasInput
(
"TargetBox"
),
"Input(TargetBox) of BoxDecoderAndAssignOp should not be null."
);
PADDLE_ENFORCE
(
ctx
->
HasInput
(
"BoxScore"
),
"Input(BoxScore) of BoxDecoderAndAssignOp should not be null."
);
PADDLE_ENFORCE
(
ctx
->
HasOutput
(
"OutputBox"
),
"Output(OutputBox) of BoxDecoderAndAssignOp should not be null."
);
PADDLE_ENFORCE
(
ctx
->
HasOutput
(
"OutputAssignBox"
),
"Output(OutputAssignBox) of BoxDecoderAndAssignOp should not be null."
);
auto
prior_box_dims
=
ctx
->
GetInputDim
(
"PriorBox"
);
auto
prior_box_var_dims
=
ctx
->
GetInputDim
(
"PriorBoxVar"
);
auto
target_box_dims
=
ctx
->
GetInputDim
(
"TargetBox"
);
auto
box_score_dims
=
ctx
->
GetInputDim
(
"BoxScore"
);
PADDLE_ENFORCE_EQ
(
prior_box_dims
.
size
(),
2
,
"The rank of Input of PriorBox must be 2"
);
PADDLE_ENFORCE_EQ
(
prior_box_dims
[
1
],
4
,
"The shape of PriorBox is [N, 4]"
);
PADDLE_ENFORCE_EQ
(
prior_box_var_dims
.
size
(),
1
,
"The rank of Input of PriorBoxVar must be 1"
);
PADDLE_ENFORCE_EQ
(
prior_box_var_dims
[
0
],
4
,
"The shape of PriorBoxVar is [4]"
);
PADDLE_ENFORCE_EQ
(
target_box_dims
.
size
(),
2
,
"The rank of Input of TargetBox must be 2"
);
PADDLE_ENFORCE_EQ
(
box_score_dims
.
size
(),
2
,
"The rank of Input of BoxScore must be 2"
);
PADDLE_ENFORCE_EQ
(
prior_box_dims
[
0
],
target_box_dims
[
0
],
"The first dim of prior_box and target_box is roi nums "
"and should be same!"
);
PADDLE_ENFORCE_EQ
(
prior_box_dims
[
0
],
box_score_dims
[
0
],
"The first dim of prior_box and box_score is roi nums "
"and should be same!"
);
PADDLE_ENFORCE_EQ
(
target_box_dims
[
1
],
box_score_dims
[
1
]
*
prior_box_dims
[
1
],
"The shape of target_box is [N, classnum * 4], The shape "
"of box_score is [N, classnum], The shape of prior_box "
"is [N, 4]"
);
ctx
->
SetOutputDim
(
"OutputBox"
,
framework
::
make_ddim
({
target_box_dims
[
0
],
target_box_dims
[
1
]}));
ctx
->
ShareLoD
(
"TargetBox"
,
/*->*/
"OutputBox"
);
ctx
->
SetOutputDim
(
"OutputAssignBox"
,
framework
::
make_ddim
({
prior_box_dims
[
0
],
prior_box_dims
[
1
]}));
ctx
->
ShareLoD
(
"PriorBox"
,
/*->*/
"OutputAssignBox"
);
}
};
class
BoxDecoderAndAssignOpMaker
:
public
framework
::
OpProtoAndCheckerMaker
{
public:
void
Make
()
override
{
AddInput
(
"PriorBox"
,
"(Tensor, default Tensor<float>) "
"Box list PriorBox is a 2-D Tensor with shape [M, 4] holds M boxes, "
"each box is represented as [xmin, ymin, xmax, ymax], "
"[xmin, ymin] is the left top coordinate of the anchor box, "
"if the input is image feature map, they are close to the origin "
"of the coordinate system. [xmax, ymax] is the right bottom "
"coordinate of the anchor box."
);
AddInput
(
"PriorBoxVar"
,
"(Tensor, default Tensor<float>, optional) "
"PriorBoxVar is a 2-D Tensor with shape [M, 4] holds M group "
"of variance. PriorBoxVar will set all elements to 1 by "
"default."
)
.
AsDispensable
();
AddInput
(
"TargetBox"
,
"(LoDTensor or Tensor) This input can be a 2-D LoDTensor with shape "
"[N, classnum*4]. [N, classnum*4], each box is represented as "
"[xmin, ymin, xmax, ymax], [xmin, ymin] is the left top coordinate "
"of the box if the input is image feature map, they are close to "
"the origin of the coordinate system. [xmax, ymax] is the right "
"bottom coordinate of the box. This tensor can contain LoD "
"information to represent a batch of inputs. One instance of this "
"batch can contain different numbers of entities."
);
AddInput
(
"BoxScore"
,
"(LoDTensor or Tensor) This input can be a 2-D LoDTensor with shape "
"[N, classnum], each box is represented as [classnum] which is "
"the classification probabilities."
);
AddAttr
<
float
>
(
"box_clip"
,
"(float, default 4.135, np.log(1000. / 16.)) "
"clip box to prevent overflowing"
)
.
SetDefault
(
4.135
f
);
AddOutput
(
"OutputBox"
,
"(LoDTensor or Tensor) "
"the output tensor of op with shape [N, classnum * 4] "
"representing the result of N target boxes decoded with "
"M Prior boxes and variances for each class."
);
AddOutput
(
"OutputAssignBox"
,
"(LoDTensor or Tensor) "
"the output tensor of op with shape [N, 4] "
"representing the result of N target boxes decoded with "
"M Prior boxes and variances with the best non-background class "
"by BoxScore."
);
AddComment
(
R"DOC(
Bounding Box Coder.
Decode the target bounding box with the priorbox information.
The Decoding schema described below:
ox = (pw * pxv * tx * + px) - tw / 2
oy = (ph * pyv * ty * + py) - th / 2
ow = exp(pwv * tw) * pw + tw / 2
oh = exp(phv * th) * ph + th / 2
where `tx`, `ty`, `tw`, `th` denote the target box's center coordinates, width
and height respectively. Similarly, `px`, `py`, `pw`, `ph` denote the
priorbox's (anchor) center coordinates, width and height. `pxv`, `pyv`, `pwv`,
`phv` denote the variance of the priorbox and `ox`, `oy`, `ow`, `oh` denote the
encoded/decoded coordinates, width and height.
)DOC"
);
}
};
}
// namespace operators
}
// namespace paddle
namespace
ops
=
paddle
::
operators
;
REGISTER_OPERATOR
(
box_decoder_and_assign
,
ops
::
BoxDecoderAndAssignOp
,
ops
::
BoxDecoderAndAssignOpMaker
,
paddle
::
framework
::
EmptyGradOpMaker
);
REGISTER_OP_CPU_KERNEL
(
box_decoder_and_assign
,
ops
::
BoxDecoderAndAssignKernel
<
paddle
::
platform
::
CPUDeviceContext
,
float
>
,
ops
::
BoxDecoderAndAssignKernel
<
paddle
::
platform
::
CPUDeviceContext
,
double
>
);
paddle/fluid/operators/detection/box_decoder_and_assign_op.cu
0 → 100644
浏览文件 @
a2e83d1d
/* Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#include "paddle/fluid/memory/memcpy.h"
#include "paddle/fluid/operators/detection/box_decoder_and_assign_op.h"
#include "paddle/fluid/platform/cuda_primitives.h"
namespace
paddle
{
namespace
operators
{
template
<
typename
T
>
__global__
void
DecodeBoxKernel
(
const
T
*
prior_box_data
,
const
T
*
prior_box_var_data
,
const
T
*
target_box_data
,
const
int
roi_num
,
const
int
class_num
,
const
T
box_clip
,
T
*
output_box_data
)
{
const
int
idx
=
threadIdx
.
x
+
blockIdx
.
x
*
blockDim
.
x
;
if
(
idx
<
roi_num
*
class_num
)
{
int
i
=
idx
/
class_num
;
int
j
=
idx
%
class_num
;
T
prior_box_width
=
prior_box_data
[
i
*
4
+
2
]
-
prior_box_data
[
i
*
4
]
+
1
;
T
prior_box_height
=
prior_box_data
[
i
*
4
+
3
]
-
prior_box_data
[
i
*
4
+
1
]
+
1
;
T
prior_box_center_x
=
prior_box_data
[
i
*
4
]
+
prior_box_width
/
2
;
T
prior_box_center_y
=
prior_box_data
[
i
*
4
+
1
]
+
prior_box_height
/
2
;
int
offset
=
i
*
class_num
*
4
+
j
*
4
;
T
dw
=
prior_box_var_data
[
2
]
*
target_box_data
[
offset
+
2
];
T
dh
=
prior_box_var_data
[
3
]
*
target_box_data
[
offset
+
3
];
if
(
dw
>
box_clip
)
{
dw
=
box_clip
;
}
if
(
dh
>
box_clip
)
{
dh
=
box_clip
;
}
T
target_box_center_x
=
0
,
target_box_center_y
=
0
;
T
target_box_width
=
0
,
target_box_height
=
0
;
target_box_center_x
=
prior_box_var_data
[
0
]
*
target_box_data
[
offset
]
*
prior_box_width
+
prior_box_center_x
;
target_box_center_y
=
prior_box_var_data
[
1
]
*
target_box_data
[
offset
+
1
]
*
prior_box_height
+
prior_box_center_y
;
target_box_width
=
expf
(
dw
)
*
prior_box_width
;
target_box_height
=
expf
(
dh
)
*
prior_box_height
;
output_box_data
[
offset
]
=
target_box_center_x
-
target_box_width
/
2
;
output_box_data
[
offset
+
1
]
=
target_box_center_y
-
target_box_height
/
2
;
output_box_data
[
offset
+
2
]
=
target_box_center_x
+
target_box_width
/
2
-
1
;
output_box_data
[
offset
+
3
]
=
target_box_center_y
+
target_box_height
/
2
-
1
;
}
}
template
<
typename
T
>
__global__
void
AssignBoxKernel
(
const
T
*
prior_box_data
,
const
T
*
box_score_data
,
T
*
output_box_data
,
const
int
roi_num
,
const
int
class_num
,
T
*
output_assign_box_data
)
{
const
int
idx
=
threadIdx
.
x
+
blockIdx
.
x
*
blockDim
.
x
;
if
(
idx
<
roi_num
)
{
int
i
=
idx
;
T
max_score
=
-
1
;
int
max_j
=
-
1
;
for
(
int
j
=
0
;
j
<
class_num
;
++
j
)
{
T
score
=
box_score_data
[
i
*
class_num
+
j
];
if
(
score
>
max_score
&&
j
>
0
)
{
max_score
=
score
;
max_j
=
j
;
}
}
if
(
max_j
>
0
)
{
for
(
int
pno
=
0
;
pno
<
4
;
pno
++
)
{
output_assign_box_data
[
i
*
4
+
pno
]
=
output_box_data
[
i
*
class_num
*
4
+
max_j
*
4
+
pno
];
}
}
else
{
for
(
int
pno
=
0
;
pno
<
4
;
pno
++
)
{
output_assign_box_data
[
i
*
4
+
pno
]
=
prior_box_data
[
i
*
4
+
pno
];
}
}
}
}
template
<
typename
DeviceContext
,
typename
T
>
class
BoxDecoderAndAssignCUDAKernel
:
public
framework
::
OpKernel
<
T
>
{
public:
void
Compute
(
const
framework
::
ExecutionContext
&
context
)
const
override
{
PADDLE_ENFORCE
(
platform
::
is_gpu_place
(
context
.
GetPlace
()),
"This kernel only runs on GPU device."
);
auto
*
prior_box
=
context
.
Input
<
framework
::
LoDTensor
>
(
"PriorBox"
);
auto
*
prior_box_var
=
context
.
Input
<
framework
::
Tensor
>
(
"PriorBoxVar"
);
auto
*
target_box
=
context
.
Input
<
framework
::
LoDTensor
>
(
"TargetBox"
);
auto
*
box_score
=
context
.
Input
<
framework
::
LoDTensor
>
(
"BoxScore"
);
auto
*
output_box
=
context
.
Output
<
framework
::
Tensor
>
(
"OutputBox"
);
auto
*
output_assign_box
=
context
.
Output
<
framework
::
Tensor
>
(
"OutputAssignBox"
);
auto
roi_num
=
target_box
->
dims
()[
0
];
auto
class_num
=
box_score
->
dims
()[
1
];
auto
*
target_box_data
=
target_box
->
data
<
T
>
();
auto
*
prior_box_data
=
prior_box
->
data
<
T
>
();
auto
*
prior_box_var_data
=
prior_box_var
->
data
<
T
>
();
auto
*
box_score_data
=
box_score
->
data
<
T
>
();
output_box
->
mutable_data
<
T
>
({
roi_num
,
class_num
*
4
},
context
.
GetPlace
());
output_assign_box
->
mutable_data
<
T
>
({
roi_num
,
4
},
context
.
GetPlace
());
T
*
output_box_data
=
output_box
->
data
<
T
>
();
T
*
output_assign_box_data
=
output_assign_box
->
data
<
T
>
();
int
block
=
512
;
int
grid
=
(
roi_num
*
class_num
+
block
-
1
)
/
block
;
auto
&
device_ctx
=
context
.
cuda_device_context
();
const
T
box_clip
=
context
.
Attr
<
T
>
(
"box_clip"
);
DecodeBoxKernel
<
T
><<<
grid
,
block
,
0
,
device_ctx
.
stream
()
>>>
(
prior_box_data
,
prior_box_var_data
,
target_box_data
,
roi_num
,
class_num
,
box_clip
,
output_box_data
);
context
.
device_context
().
Wait
();
int
assign_grid
=
(
roi_num
+
block
-
1
)
/
block
;
AssignBoxKernel
<
T
><<<
assign_grid
,
block
,
0
,
device_ctx
.
stream
()
>>>
(
prior_box_data
,
box_score_data
,
output_box_data
,
roi_num
,
class_num
,
output_assign_box_data
);
context
.
device_context
().
Wait
();
}
};
}
// namespace operators
}
// namespace paddle
namespace
ops
=
paddle
::
operators
;
REGISTER_OP_CUDA_KERNEL
(
box_decoder_and_assign
,
ops
::
BoxDecoderAndAssignCUDAKernel
<
paddle
::
platform
::
CUDADeviceContext
,
float
>
,
ops
::
BoxDecoderAndAssignCUDAKernel
<
paddle
::
platform
::
CUDADeviceContext
,
double
>
);
paddle/fluid/operators/detection/box_decoder_and_assign_op.h
0 → 100644
浏览文件 @
a2e83d1d
/* Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
#pragma once
#include <algorithm>
#include <string>
#include <vector>
#include "paddle/fluid/framework/op_registry.h"
#include "paddle/fluid/operators/math/math_function.h"
namespace
paddle
{
namespace
operators
{
template
<
typename
DeviceContext
,
typename
T
>
class
BoxDecoderAndAssignKernel
:
public
framework
::
OpKernel
<
T
>
{
public:
void
Compute
(
const
framework
::
ExecutionContext
&
context
)
const
override
{
auto
*
prior_box
=
context
.
Input
<
framework
::
LoDTensor
>
(
"PriorBox"
);
auto
*
prior_box_var
=
context
.
Input
<
framework
::
Tensor
>
(
"PriorBoxVar"
);
auto
*
target_box
=
context
.
Input
<
framework
::
LoDTensor
>
(
"TargetBox"
);
auto
*
box_score
=
context
.
Input
<
framework
::
LoDTensor
>
(
"BoxScore"
);
auto
*
output_box
=
context
.
Output
<
framework
::
Tensor
>
(
"OutputBox"
);
auto
*
output_assign_box
=
context
.
Output
<
framework
::
Tensor
>
(
"OutputAssignBox"
);
int
roi_num
=
target_box
->
dims
()[
0
];
int
class_num
=
box_score
->
dims
()[
1
];
auto
*
target_box_data
=
target_box
->
data
<
T
>
();
auto
*
prior_box_data
=
prior_box
->
data
<
T
>
();
auto
*
prior_box_var_data
=
prior_box_var
->
data
<
T
>
();
auto
*
box_score_data
=
box_score
->
data
<
T
>
();
output_box
->
mutable_data
<
T
>
({
roi_num
,
class_num
*
4
},
context
.
GetPlace
());
output_assign_box
->
mutable_data
<
T
>
({
roi_num
,
4
},
context
.
GetPlace
());
T
*
output_box_data
=
output_box
->
data
<
T
>
();
T
*
output_assign_box_data
=
output_assign_box
->
data
<
T
>
();
const
T
bbox_clip
=
context
.
Attr
<
T
>
(
"box_clip"
);
for
(
int
i
=
0
;
i
<
roi_num
;
++
i
)
{
T
prior_box_width
=
prior_box_data
[
i
*
4
+
2
]
-
prior_box_data
[
i
*
4
]
+
1
;
T
prior_box_height
=
prior_box_data
[
i
*
4
+
3
]
-
prior_box_data
[
i
*
4
+
1
]
+
1
;
T
prior_box_center_x
=
prior_box_data
[
i
*
4
]
+
prior_box_width
/
2
;
T
prior_box_center_y
=
prior_box_data
[
i
*
4
+
1
]
+
prior_box_height
/
2
;
for
(
int
j
=
0
;
j
<
class_num
;
++
j
)
{
int64_t
offset
=
i
*
class_num
*
4
+
j
*
4
;
T
dw
=
std
::
min
(
prior_box_var_data
[
2
]
*
target_box_data
[
offset
+
2
],
bbox_clip
);
T
dh
=
std
::
min
(
prior_box_var_data
[
3
]
*
target_box_data
[
offset
+
3
],
bbox_clip
);
T
target_box_center_x
=
0
,
target_box_center_y
=
0
;
T
target_box_width
=
0
,
target_box_height
=
0
;
target_box_center_x
=
prior_box_var_data
[
0
]
*
target_box_data
[
offset
]
*
prior_box_width
+
prior_box_center_x
;
target_box_center_y
=
prior_box_var_data
[
1
]
*
target_box_data
[
offset
+
1
]
*
prior_box_height
+
prior_box_center_y
;
target_box_width
=
std
::
exp
(
dw
)
*
prior_box_width
;
target_box_height
=
std
::
exp
(
dh
)
*
prior_box_height
;
output_box_data
[
offset
]
=
target_box_center_x
-
target_box_width
/
2
;
output_box_data
[
offset
+
1
]
=
target_box_center_y
-
target_box_height
/
2
;
output_box_data
[
offset
+
2
]
=
target_box_center_x
+
target_box_width
/
2
-
1
;
output_box_data
[
offset
+
3
]
=
target_box_center_y
+
target_box_height
/
2
-
1
;
}
T
max_score
=
-
1
;
int
max_j
=
-
1
;
for
(
int
j
=
0
;
j
<
class_num
;
++
j
)
{
T
score
=
box_score_data
[
i
*
class_num
+
j
];
if
(
score
>
max_score
&&
j
>
0
)
{
max_score
=
score
;
max_j
=
j
;
}
}
if
(
max_j
>
0
)
{
for
(
int
pno
=
0
;
pno
<
4
;
pno
++
)
{
output_assign_box_data
[
i
*
4
+
pno
]
=
output_box_data
[
i
*
class_num
*
4
+
max_j
*
4
+
pno
];
}
}
else
{
for
(
int
pno
=
0
;
pno
<
4
;
pno
++
)
{
output_assign_box_data
[
i
*
4
+
pno
]
=
prior_box_data
[
i
*
4
+
pno
];
}
}
}
}
};
}
// namespace operators
}
// namespace paddle
python/paddle/fluid/layers/detection.py
浏览文件 @
a2e83d1d
...
...
@@ -51,6 +51,7 @@ __all__ = [
'yolov3_loss'
,
'box_clip'
,
'multiclass_nms'
,
'box_decoder_and_assign'
,
]
...
...
@@ -2221,3 +2222,53 @@ def multiclass_nms(bboxes,
output
.
stop_gradient
=
True
return
output
@
templatedoc
()
def
box_decoder_and_assign
(
prior_box
,
prior_box_var
,
target_box
,
box_score
,
box_clip
):
"""
${comment}
Args:
prior_box(${prior_box_type}): ${prior_box_comment}
prior_box_var(${prior_box_var_type}): ${prior_box_var_comment}
target_box(${target_box_type}): ${target_box_comment}
box_score(${box_score_type}): ${box_score_comment}
Returns:
output_box(${output_box_type}): ${output_box_comment}
output_assign_box(${output_assign_box_type}): ${output_assign_box_comment}
Examples:
.. code-block:: python
pb = fluid.layers.data(name='prior_box', shape=[20, 4],
dtype='float32')
pbv = fluid.layers.data(name='prior_box_var', shape=[1, 4],
dtype='float32')
loc = fluid.layers.data(name='target_box', shape=[20, 4*81],
dtype='float32')
scores = fluid.layers.data(name='scores', shape=[20, 81],
dtype='float32')
output_box, output_assign_box = fluid.layers.box_decoder_and_assign(pb, pbv, loc, scores, 4.135)
"""
helper
=
LayerHelper
(
"box_decoder_and_assign"
,
**
locals
())
output_box
=
helper
.
create_variable_for_type_inference
(
dtype
=
prior_box
.
dtype
)
output_assign_box
=
helper
.
create_variable_for_type_inference
(
dtype
=
prior_box
.
dtype
)
helper
.
append_op
(
type
=
"box_decoder_and_assign"
,
inputs
=
{
"PriorBox"
:
prior_box
,
"PriorBoxVar"
:
prior_box_var
,
"TargetBox"
:
target_box
,
"BoxScore"
:
box_score
},
attrs
=
{
"box_clip"
:
box_clip
},
outputs
=
{
"OutputBox"
:
output_box
,
"OutputAssignBox"
:
output_assign_box
})
return
output_box
,
output_assign_box
python/paddle/fluid/tests/unittests/test_box_decoder_and_assign_op.py
0 → 100644
浏览文件 @
a2e83d1d
# Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from
__future__
import
print_function
import
unittest
import
numpy
as
np
import
sys
import
math
from
op_test
import
OpTest
def
box_decoder_and_assign
(
deltas
,
weights
,
boxes
,
box_score
,
box_clip
):
boxes
=
boxes
.
astype
(
deltas
.
dtype
,
copy
=
False
)
widths
=
boxes
[:,
2
]
-
boxes
[:,
0
]
+
1.0
heights
=
boxes
[:,
3
]
-
boxes
[:,
1
]
+
1.0
ctr_x
=
boxes
[:,
0
]
+
0.5
*
widths
ctr_y
=
boxes
[:,
1
]
+
0.5
*
heights
wx
,
wy
,
ww
,
wh
=
weights
dx
=
deltas
[:,
0
::
4
]
*
wx
dy
=
deltas
[:,
1
::
4
]
*
wy
dw
=
deltas
[:,
2
::
4
]
*
ww
dh
=
deltas
[:,
3
::
4
]
*
wh
# Prevent sending too large values into np.exp()
dw
=
np
.
minimum
(
dw
,
box_clip
)
dh
=
np
.
minimum
(
dh
,
box_clip
)
pred_ctr_x
=
dx
*
widths
[:,
np
.
newaxis
]
+
ctr_x
[:,
np
.
newaxis
]
pred_ctr_y
=
dy
*
heights
[:,
np
.
newaxis
]
+
ctr_y
[:,
np
.
newaxis
]
pred_w
=
np
.
exp
(
dw
)
*
widths
[:,
np
.
newaxis
]
pred_h
=
np
.
exp
(
dh
)
*
heights
[:,
np
.
newaxis
]
pred_boxes
=
np
.
zeros
(
deltas
.
shape
,
dtype
=
deltas
.
dtype
)
# x1
pred_boxes
[:,
0
::
4
]
=
pred_ctr_x
-
0.5
*
pred_w
# y1
pred_boxes
[:,
1
::
4
]
=
pred_ctr_y
-
0.5
*
pred_h
# x2 (note: "- 1" is correct; don't be fooled by the asymmetry)
pred_boxes
[:,
2
::
4
]
=
pred_ctr_x
+
0.5
*
pred_w
-
1
# y2 (note: "- 1" is correct; don't be fooled by the asymmetry)
pred_boxes
[:,
3
::
4
]
=
pred_ctr_y
+
0.5
*
pred_h
-
1
output_assign_box
=
[]
for
ino
in
range
(
len
(
pred_boxes
)):
rank
=
np
.
argsort
(
-
box_score
[
ino
])
maxidx
=
rank
[
0
]
if
maxidx
==
0
:
maxidx
=
rank
[
1
]
beg_pos
=
maxidx
*
4
end_pos
=
maxidx
*
4
+
4
output_assign_box
.
append
(
pred_boxes
[
ino
,
beg_pos
:
end_pos
])
output_assign_box
=
np
.
array
(
output_assign_box
)
return
pred_boxes
,
output_assign_box
class
TestBoxDecoderAndAssignOpWithLoD
(
OpTest
):
def
test_check_output
(
self
):
self
.
check_output
()
def
setUp
(
self
):
self
.
op_type
=
"box_decoder_and_assign"
lod
=
[[
4
,
8
,
8
]]
num_classes
=
10
prior_box
=
np
.
random
.
random
((
20
,
4
)).
astype
(
'float32'
)
prior_box_var
=
np
.
array
([
0.1
,
0.1
,
0.2
,
0.2
],
dtype
=
np
.
float32
)
target_box
=
np
.
random
.
random
((
20
,
4
*
num_classes
)).
astype
(
'float32'
)
box_score
=
np
.
random
.
random
((
20
,
num_classes
)).
astype
(
'float32'
)
box_clip
=
4.135
output_box
,
output_assign_box
=
box_decoder_and_assign
(
target_box
,
prior_box_var
,
prior_box
,
box_score
,
box_clip
)
self
.
inputs
=
{
'PriorBox'
:
(
prior_box
,
lod
),
'PriorBoxVar'
:
prior_box_var
,
'TargetBox'
:
(
target_box
,
lod
),
'BoxScore'
:
(
box_score
,
lod
),
}
self
.
attrs
=
{
'box_clip'
:
box_clip
}
self
.
outputs
=
{
'OutputBox'
:
output_box
,
'OutputAssignBox'
:
output_assign_box
}
if
__name__
==
'__main__'
:
unittest
.
main
()
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