去年写了一篇博客：【SlowFast复现】SlowFast Networks for Video Recognition复现代码 使用自己的视频进行demo检测
facebookresearch SlowFast ：https://github.com/facebookresearch/SlowFast
但是没有整理出快速安装的流程，这次就是把所有的安装指令整理处理，实现快速安装 facebookresearch SlowFast，如果不受国内网速限制，1分钟左右就可以安装好。
1 准备我采用的AI平台：https://cloud.videojj.com/auth/register?inviter=18452&activityChannel=student_invite
AI平台镜像选择：pytorch 1.8.0，python 3.8，CUDA：11.1.1
为了能够每次都能快速安装 facebookresearch SlowFast，需要提前下好两个权重，一个是slowfast的权重，一个是faster rcnn的权重。
需要先将这两个权重下载到AI平台的：/user-data/slowfastFile
model_final_280758.pkl：https://dl.fbaipublicfiles.com/detectron2/COCO-Detection/faster_rcnn_R_50_FPN_3x/137849458/model_final_280758.pkl
SLOWFAST_32x2_R101_50_50.pkl：https://dl.fbaipublicfiles.com/pyslowfast/model_zoo/ava/SLOWFAST_32x2_R101_50_50.pkl
mkdir -p /user-data/slowfastFile cd /user-data/slowfastFile wget https://dl.fbaipublicfiles.com/pyslowfast/model_zoo/ava/SLOWFAST_32x2_R101_50_50.pkl wget https://dl.fbaipublicfiles.com/detectron2/COCO-Detection/faster_rcnn_R_50_FPN_3x/137849458/model_final_280758.pkl2 开始安装
pip install 'git+https://gitee.com/YFwinston/fvcore' pip install simplejson conda install av -c conda-forge -y
conda install x264 ffmpeg -c conda-forge -y pip install -U iopath or conda install -c iopath iopath pip install psutil pip install tensorboard pip install moviepy pip install pytorchvideo pip install 'git+https://gitee.com/YFwinston/fairscale'
cd /home pip install cython; pip install git+https://github.com/cocodataset/cocoapi.git#subdirectory=PythonAPI git clone https://gitee.com/YFwinston/detectron2 detectron2_repo cd detectron2_repo python setup.py build develop cd .. pip install -e detectron2_repo apt update apt install libgl1-mesa-glx
cd /home git clone https://gitee.com/YFwinston/slowfast.git export PYTHONPATH=/home/slowfast:$PYTHONPATH cd slowfast python setup.py build develop
cd /home/slowfast/demo/AVA touch ava.json touch SLOWFAST_32x2_R101_50_50s.yaml cp /user-data/slowfastFile/SLOWFAST_32x2_R101_50_50.pkl /home/slowfast/configs/AVA/c2/ cp /user-data/slowfastFile/model_final_280758.pkl /home/slowfast/configs/AVA/c2/
然后在/home/slowfast/demo/AVA下面的ava.json写入：
{"bend/bow (at the waist)": 0, "crawl": 1, "crouch/kneel": 2, "dance": 3, "fall down": 4, "get up": 5, "jump/leap": 6, "lie/sleep": 7, "martial art": 8, "run/jog": 9, "sit": 10, "stand": 11, "swim": 12, "walk": 13, "answer phone": 14, "brush teeth": 15, "carry/hold (an object)": 16, "catch (an object)": 17, "chop": 18, "climb (e.g., a mountain)": 19, "clink glass": 20, "close (e.g., a door, a box)": 21, "cook": 22, "cut": 23, "dig": 24, "dress/put on clothing": 25, "drink": 26, "drive (e.g., a car, a truck)": 27, "eat": 28, "enter": 29, "exit": 30, "extract": 31, "fishing": 32, "hit (an object)": 33, "kick (an object)": 34, "lift/pick up": 35, "listen (e.g., to music)": 36, "open (e.g., a window, a car door)": 37, "paint": 38, "play board game": 39, "play musical instrument": 40, "play with pets": 41, "point to (an object)": 42, "press": 43, "pull (an object)": 44, "push (an object)": 45, "put down": 46, "read": 47, "ride (e.g., a bike, a car, a horse)": 48, "row boat": 49, "sail boat": 50, "shoot": 51, "shovel": 52, "smoke": 53, "stir": 54, "take a photo": 55, "text on/look at a cellphone": 56, "throw": 57, "touch (an object)": 58, "turn (e.g., a screwdriver)": 59, "watch (e.g., TV)": 60, "work on a computer": 61, "write": 62, "fight/hit (a person)": 63, "give/serve (an object) to (a person)": 64, "grab (a person)": 65, "hand clap": 66, "hand shake": 67, "hand wave": 68, "hug (a person)": 69, "kick (a person)": 70, "kiss (a person)": 71, "lift (a person)": 72, "listen to (a person)": 73, "play with kids": 74, "push (another person)": 75, "sing to (e.g., self, a person, a group)": 76, "take (an object) from (a person)": 77, "talk to (e.g., self, a person, a group)": 78, "watch (a person)": 79}
然后在/home/slowfast/demo/AVA下面的SLOWFAST_32x2_R101_50_50s.yaml 写入：
TRAIN: ENABLE: False DATASET: ava BATCH_SIZE: 16 EVAL_PERIOD: 1 CHECKPOINT_PERIOD: 1 AUTO_RESUME: True CHECKPOINT_FILE_PATH: '/home/slowfast/configs/AVA/c2/SLOWFAST_32x2_R101_50_50.pkl' #path to pretrain model CHECKPOINT_TYPE: pytorch DATA: NUM_FRAMES: 32 SAMPLING_RATE: 2 TRAIN_JITTER_SCALES: [256, 320] TRAIN_CROP_SIZE: 224 TEST_CROP_SIZE: 256 INPUT_CHANNEL_NUM: [3, 3] DETECTION: ENABLE: True ALIGNED: False AVA: BGR: False DETECTION_SCORE_THRESH: 0.8 TEST_PREDICT_BOX_LISTS: ["person_box_67091280_iou90/ava_detection_val_boxes_and_labels.csv"] SLOWFAST: ALPHA: 4 BETA_INV: 8 FUSION_CONV_CHANNEL_RATIO: 2 FUSION_KERNEL_SZ: 5 RESNET: ZERO_INIT_FINAL_BN: True WIDTH_PER_GROUP: 64 NUM_GROUPS: 1 DEPTH: 101 TRANS_FUNC: bottleneck_transform STRIDE_1X1: False NUM_BLOCK_TEMP_KERNEL: [[3, 3], [4, 4], [6, 6], [3, 3]] SPATIAL_DILATIONS: [[1, 1], [1, 1], [1, 1], [2, 2]] SPATIAL_STRIDES: [[1, 1], [2, 2], [2, 2], [1, 1]] NONLOCAL: LOCATION: [[[], []], [[], []], [[6, 13, 20], []], [[], []]] GROUP: [[1, 1], [1, 1], [1, 1], [1, 1]] INSTANTIATION: dot_product POOL: [[[2, 2, 2], [2, 2, 2]], [[2, 2, 2], [2, 2, 2]], [[2, 2, 2], [2, 2, 2]], [[2, 2, 2], [2, 2, 2]]] BN: USE_PRECISE_STATS: False NUM_BATCHES_PRECISE: 200 SOLVER: MOMENTUM: 0.9 WEIGHT_DECAY: 1e-7 OPTIMIZING_METHOD: sgd MODEL: NUM_CLASSES: 80 ARCH: slowfast MODEL_NAME: SlowFast LOSS_FUNC: bce DROPOUT_RATE: 0.5 HEAD_ACT: sigmoid TEST: ENABLE: False DATASET: ava BATCH_SIZE: 8 DATA_LOADER: NUM_WORKERS: 2 PIN_MEMORY: True NUM_GPUS: 1 NUM_SHARDS: 1 RNG_SEED: 0 OUTPUT_DIR: . #TENSORBOARD: # MODEL_VIS: # TOPK: 2 DEMO: ENABLE: True LABEL_FILE_PATH: "/home/slowfast/demo/AVA/ava.json" INPUT_VIDEO: "/home/slowfast/demo/1.mp4" OUTPUT_FILE: "/home/slowfast/demo/out.mp4" DETECTRON2_CFG: "COCO-Detection/faster_rcnn_R_50_FPN_3x.yaml" DETECTRON2_WEIGHTS: "/home/slowfast/configs/AVA/c2/model_final_280758.pkl"3 测试
在/home/slowfast/demo/中传入一个视频：1.mp4
执行：
cd /home/slowfast/ python tools/run_net.py --cfg demo/AVA/SLOWFAST_32x2_R101_50_50s.yaml
最后结果：
