> -----Original Message----- > From: Guo, Yejun <yejun....@intel.com> > Sent: 2021年3月26日 16:10 > To: ffmpeg-devel@ffmpeg.org > Cc: Guo, Yejun <yejun....@intel.com> > Subject: [PATCH V6 6/6] lavfi: add filter dnn_detect for object detection > > Below are the example steps to do object detection: > > 1. download and install l_openvino_toolkit_p_2021.1.110.tgz from > https://software.intel.com/content/www/us/en/develop/tools/openvino-toolk > it/download.html > or, we can get source code (tag 2021.1), build and install. > 2. export LD_LIBRARY_PATH with openvino settings, for example: > .../deployment_tools/inference_engine/lib/intel64/:.../deployment_tools/infer > ence_engine/external/tbb/lib/ > 3. rebuild ffmpeg from source code with configure option: > --enable-libopenvino > --extra-cflags='-I.../deployment_tools/inference_engine/include/' > --extra-ldflags='-L.../deployment_tools/inference_engine/lib/intel64' > 4. download model files and test image > wget > https://github.com/guoyejun/ffmpeg_dnn/raw/main/models/openvino/2021. > 1/face-detection-adas-0001.bin > wget > https://github.com/guoyejun/ffmpeg_dnn/raw/main/models/openvino/2021. > 1/face-detection-adas-0001.xml > wget > https://github.com/guoyejun/ffmpeg_dnn/raw/main/models/openvino/2021. > 1/face-detection-adas-0001.label > wget https://github.com/guoyejun/ffmpeg_dnn/raw/main/images/cici.jpg > 5. run ffmpeg with: > ./ffmpeg -i cici.jpg -vf > dnn_detect=dnn_backend=openvino:model=face-detection-adas-0001.xml:inp > ut=data:output=detection_out:confidence=0.6:labels=face-detection-adas-000 > 1.label,showinfo -f null - > > We'll see the detect result as below: > [Parsed_showinfo_1 @ 0x55978db02dc0] side data - bounding boxes: > [Parsed_showinfo_1 @ 0x55978db02dc0] source: > face-detection-adas-0001.xml > [Parsed_showinfo_1 @ 0x55978db02dc0] index: 0, region: (1005, 813) -> > (1086, 905), label: face, confidence: 10000/10000. > [Parsed_showinfo_1 @ 0x55978db02dc0] index: 1, region: (888, 839) -> (967, > 926), label: face, confidence: 6917/10000. > > There are two faces detected with confidence 100% and 69.17%. > > Signed-off-by: Guo, Yejun <yejun....@intel.com> > --- > configure | 1 + > doc/filters.texi | 40 +++ > libavfilter/Makefile | 1 + > libavfilter/allfilters.c | 1 + > libavfilter/dnn/dnn_backend_openvino.c | 12 + > libavfilter/vf_dnn_detect.c | 426 > +++++++++++++++++++++++++
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