* update doc, test=document_fix

* update en doc, test=document_fix

* update link, test=document_fix

* update empty features check (#6985)

* rtsp push stream in pipeline (#7000)

* add push stream

* update push stream docs

* update class name

* update PP-Vehicle docs and en docs (#7042)

* update PP-Vehicle docs and en docs

* add reid model in v2.5 modelzoo

* update more

* update ppvehicle modelzoo; test=document_fix

* update pipeline pictures

* update

* fix platerec jetson trtfp16; test=document_fix

* replace all --model_dir in pipeline docs; test=document_fix

* Update README.md

* Update README.md

* ppvehicle tutorials template

* rename pphuman docs

* update quickstart

* update human gif & qrcode, test=document_fix

* update link, test=document_fix

* update ppdet docs & remove static code, test=document_fix

* add pphuman doc, test=document_fix

* update action doc, test=document_fix

* update activity, test=document_fix

* optimize pphuman action document

* add en doc

* add break in counting for pphuman

* fix break in doc and codes

* fix mot break in region, test=document_fix

* fix region_polygon and region_type, test=document_fix

* add tools for get_video_info, test=document_fix

* add docs, still in working

* add action doc

* add action en doc

* add fight recognition docs

* add fight recognition tool file : split_fight_train_test_dataset.py

* fight recognition quick start and develop documents

* add solution selection table for action recognition.

* add fight recognition case AI Studio link

* fix pphuman cfg doc, test=document_fix

* fix doc, test=document_fix

* remove en readme doc, test=document_fix

* refactor doc, test=document_fix

* update yolox & yolov5, test=document_fix

* Update README_cn.md

* update doc, test=document_fix

* Update readme and pphuman readme

* Update README.md

* add data & customize, test=document_fix

* update readme

* Update README_cn.md

* Update README_cn.md

* add template, test=document_fix
Co-authored-by: NYixinKristy <576550767@qq.com>

* add ppyoloe-s, update mot doc, test=document_fix

* fix doc typo, test=document_fix

* add dataset links, test=document_fix

* add ai-studio link, test=document_fix

* update pphuman en doc, test=document_fix

* update doc

* add entrance_count draw_center_traj save_mot_txts

* fix pphuman plot_tracking_dict

* fix pphuman plot_tracking_dict

* fix plot tracking dict

* fix pipeline mot plot, add gif

* fix collector append, test=document_fix

* add Doc for action

* update docs

* add attr doc

* update attr intro

* add pphuman doc

* add pphuman doc & add enable_attr, enable_action

* update doc

* update pphuman-tech.png