remove redundent description. img_meta (dict) repeated twice in line 195 and line 198.

[Refactor]: Support batch inference traceable by ONNX in SSD, YOLOv3, FSAF, RetinaNet, and FCOS (#4699)

* Support batch infer in RetinaNet

* Suport batch multiclass_nms

* Revert multiclass_nms

* Fix api deprecated warning

* do not repeat anchors

* Move img_shapes

* Update Yolov3

* Support FCOS

* Support RPN

* Fix RPN topk_inds error

* make batch exportable to onnx for yolohead

* make fcos_head exportable to onnx with batch dim

* Support ATSS

* Support CornerNet and centripetalNet

* Update RetinaNet and delta_xywh

* Remove ugly code

* Remove ugly code of FCOS

* Remove ugly code of ATSS/YOLOV3

* Support RPN and revert bbox_head

* expand anchors to batch and remove BG class when use deploy_nms_pre

* Update

* Use dim=-1 instead of dim=2

* Rename anchor_head method

* Keep the original format output when nms is not use

* Rename method and unified code style

* Fix paa_head and unittest

* Fix FASF onnx export error

* Fix error

* fix single stage img_shapes for onnx

* move conf_thr

* fix rpn_head for onnx

* Add distance2bbox unittest

* Remove TODO

* Fix RPN

* Update docstrs

Co-authored-by: maningsheng <maningsheng@sensetime.com>

* Fix RPN show_result error

* Remove EmbeddingRPN show_result

* Add docstr

* Add FAQ

* Update docs

* Update error_analysis docs

* Add the model download link

* Update error_analysis docs

* add dynamic shape support for two_stage func

* update code

* update code

* update code

* bbox coder support batch infer

* Add unit test

* get img_shape as tensor in single_stage

* Fix max_shape

* Update docs and unittest

Co-authored-by: maningsheng <maningsheng@sensetime.com>

fix a typo in useful_tool.md

* modify get_bboes() to export onnx model which support dynamic input shape

* update code

* update code

* update code

* update code

* update code

* update code

* update code

* update code

* update code

* update code

* make anchor_generator exportable to ONNX

* make k of topk dynamic for onnx

* rename nms_pre_t -> nms_pre_tensor

* bump to v2.10.0

* update other docs

* resolve comments

* resolve comments

* Deprecated warning and fix 'meta' error

* Fix comment

* Deprecated font_scale

* Ignore nonzero and add dummy data in multiclass_nms for deployment with TensorRT

* reduce number of bboxes by nms_pre_deploy in anchor_head

* reduce number of bboxes by nms_pre_deploy in fcos_head

* add onnx2tensorrt and its doc

* add nms_pre_deploy in yolo_head

* change sort to topk in rpn_head

* skip nonzero in single_level_roi_extractor

* update onnx2tensorrt and its doc

* move onnx2tensorrt

* update onnx2tensorrt doc

* change nms_pre_deploy to deploy_nms_pre

* update doc and change deploy_nms_pre format

* add cfg

* add cfg

* fix typo

* fix pad

* fix test pad

* add readme

* modify by comments

* fix typo

* Demo with cv2.VideoCapture

Signed-off-by: steven0129 <h3584935@gmail.com>

* Add video demo and docs

* Use ProgressBar

* add demo.mp4 and docs

* Use mmcv.VideoReader

* Use track_iter_progress

Co-authored-by: hhaAndroid <1286304229@qq.com>

* Refactor unittest

* Fix unittest

* Fix unittest

* Replace util with mmcv testing

* Try to reduce the unit test memory

* rpn head refactor

* guided anchor

* add deprecate warning

* add more warning for set ori augs

* fix unitest

* change base

* cascade rpn

* cornernet and centri

* grid frcnn ok

* ga anchor ok

* legacy ok

* pisa ok

* tridnet ok

* fix tutorals

* use ConfigDict

* Add type of runner in configs

* fix missing config

* use isinstance method to get loading pipeline

* Fix isinstance error

* Add unit test

* Fix lint

* Fix lint

Co-authored-by: hhaAndroid <1286304229@qq.com>

* add mmcv.jit

* only use derivate and coderize

* fix for isort

* small modify for decorator order

* Add result_analysis docs

* Update docs

* add chinese version readme

* fix the language link

* Add doctest examples to mask structures

* Add doctests examples to mask_target

* Expanded docs and added examples to loss and get_seg_masks in FCNMaskHead

* Add doctest and update docs of mask_cross_entropy

* Modifications based on review comments

* Fixed boxes to be inside the target image

* Fixed doc in cross entropy loss

* moved from after import

* Added tenative scale_factor and rescale docs

* Moved ensure_rng to top level utils

* Added random classmethods to BitmapBoxes and Polygons

* update docstring of get_seg_masks()

* use height / width instead of H, W

* Better scale_factor rescale docs

* fix linting errors to pass CI

Co-authored-by: Kai Chen <chenkaidev@gmail.com>

* support convert voc to cocoformat json

* modify according to comments

* sup customize runner

* fix typo

* use build runner

* minor fix

* modify according to comments

* add an assertion

* swap order

* fix tutorial

* avoid crash in empty gt training of GFL

* real fix of the bug

* fix modify args

* add comments

spelling correction, 'ballon' -> 'balloon'