Cherry pick add citation (#4485)

* update citation

* update citation

deploy/cpp/include/lapjv.h

@@ -12,6 +12,10 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/gatagat/lap/blob/master/lap/lapjv.h
+// Ths copyright of gatagat/lap is as follows:
+// MIT License
 
 #ifndef LAPJV_H
 #define LAPJV_H

deploy/cpp/include/tracker.h

@@ -12,6 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/CnybTseng/JDE/blob/master/platforms/common/jdetracker.h
+// Ths copyright of CnybTseng/JDE is as follows:
+// MIT License 
+
 #pragma once
 
 #include <map>

deploy/cpp/include/trajectory.h

@@ -12,6 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/CnybTseng/JDE/blob/master/platforms/common/trajectory.h
+// Ths copyright of CnybTseng/JDE is as follows:
+// MIT License
+
 #pragma once
 
 #include <vector>

deploy/cpp/src/lapjv.cpp

@@ -12,6 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/gatagat/lap/blob/master/lap/lapjv.cpp
+// Ths copyright of gatagat/lap is as follows:
+// MIT License
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

deploy/cpp/src/tracker.cc

@@ -12,6 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/CnybTseng/JDE/blob/master/platforms/common/jdetracker.cpp
+// Ths copyright of CnybTseng/JDE is as follows:
+// MIT License 
+
 #include <map>
 #include <stdio.h>
 #include <limits.h>

deploy/cpp/src/trajectory.cc

@@ -12,6 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// The code is based on:
+// https://github.com/CnybTseng/JDE/blob/master/platforms/common/trajectory.cpp
+// Ths copyright of CnybTseng/JDE is as follows:
+// MIT License 
+
 #include <algorithm>
 
 #include "include/trajectory.h"

ppdet/data/transform/gridmask_utils.py

@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The code is based on:
+# https://github.com/dvlab-research/GridMask/blob/master/detection_grid/maskrcnn_benchmark/data/transforms/grid.py
+
 from __future__ import absolute_import
 from __future__ import print_function
 from __future__ import division

ppdet/modeling/post_process.py

@@ -141,6 +141,13 @@ class BBoxPostProcess(nn.Layer):
 
 @register
 class MaskPostProcess(object):
+    """
+    refer to:
+    https://github.com/facebookresearch/detectron2/layers/mask_ops.py
+
+    Get Mask output according to the output from model
+    """
+
     def __init__(self, binary_thresh=0.5):
         super(MaskPostProcess, self).__init__()
         self.binary_thresh = binary_thresh

ppdet/modeling/proposal_generator/anchor_generator.py

@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The code is based on 
+# https://github.com/facebookresearch/detectron2/blob/main/detectron2/modeling/anchor_generator.py
+
 import math
 
 import paddle

ppdet/modeling/proposal_generator/target.py

@@ -279,9 +279,12 @@ def sample_bbox(matches,
 
 def polygons_to_mask(polygons, height, width):
     """
+    Convert the polygons to mask format
+
     Args:
         polygons (list[ndarray]): each array has shape (Nx2,)
-        height, width (int)
+        height (int): mask height
+        width (int): mask width
     Returns:
         ndarray: a bool mask of shape (height, width)
     """

ppdet/modeling/shape_spec.py

@@ -12,22 +12,14 @@
 # See the License for the specific language governing permissions and   
 # limitations under the License.
 
+# The code is based on:
+# https://github.com/facebookresearch/detectron2/blob/main/detectron2/layers/shape_spec.py
+
 from collections import namedtuple
 
 
 class ShapeSpec(
         namedtuple("_ShapeSpec", ["channels", "height", "width", "stride"])):
-    """
-    A simple structure that contains basic shape specification about a tensor.
-    It is often used as the auxiliary inputs/outputs of models,
-    to complement the lack of shape inference ability among paddle modules.
-    Attributes:
-        channels:
-        height:
-        width:
-        stride:
-    """
-
     def __new__(cls, channels=None, height=None, width=None, stride=None):
         return super(ShapeSpec, cls).__new__(cls, channels, height, width,
                                              stride)

static/ppdet/data/transform/gridmask_utils.py

@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The code is based on:
+# https://github.com/dvlab-research/GridMask/blob/master/detection_grid/maskrcnn_benchmark/data/transforms/grid.py
+
 from __future__ import absolute_import
 from __future__ import print_function
 from __future__ import division

static/ppdet/utils/post_process.py

@@ -35,7 +35,12 @@ def box_flip(boxes, im_shape):
 
 
 def nms(dets, thresh):
-    """Apply classic DPM-style greedy NMS."""
+    """
+    refer to:
+    https://github.com/facebookresearch/Detectron/blob/main/detectron/utils/cython_nms.pyx
+
+    Apply classic DPM-style greedy NMS.
+    """
     if dets.shape[0] == 0:
         return dets[[], :]
     scores = dets[:, 0]
@@ -91,6 +96,10 @@ def nms(dets, thresh):
 
 
 def soft_nms(dets, sigma, thres):
+    """
+    refer to:
+    https://github.com/facebookresearch/Detectron/blob/main/detectron/utils/cython_nms.pyx
+    """
     dets_final = []
     while len(dets) > 0:
         maxpos = np.argmax(dets[:, 0])