README.md

TSN

Model Zoo

UCF-101

config	gpus	backbone	pretrain	top1 acc	top5 acc	gpu_mem(M)	ckpt	log	json
tsn_r50_1x1x3_80e_ucf101_rgb	8	ResNet50	ImageNet	80.12	96.09	8332	ckpt	log	json

Kinetics-400

config	resolution	gpus	backbone	pretrain	top1 acc	top5 acc	reference top1 acc	reference top5 acc	inference_time(video/s)	gpu_mem(M)	ckpt	log	json
tsn_r50_1x1x3_100e_kinetics400_rgb	340x256	8	ResNet50	ImageNet	70.60	89.26	x	x	4.3 (25x10 frames)	8344	ckpt	log	json
tsn_r50_dense_1x1x5_50e_kinetics400_rgb	340x256	8x3	ResNet50	ImageNet	70.18	89.10	69.15	88.56	12.7 (8x10 frames)	7028	ckpt	log	json
tsn_r50_320p_1x1x3_100e_kinetics400_rgb	short-side 320	8x2	ResNet50	ImageNet	70.91	89.51	x	x	10.7 (25x3 frames)	8344	ckpt	log	json
tsn_r50_320p_1x1x3_110e_kinetics400_flow	short-side 320	8x2	ResNet50	ImageNet	55.70	79.85	x	x	x	8471	ckpt	log	json
tsn_r50_320p_1x1x3_kinetics400_twostream [1: 1]*	x	x	ResNet50	ImageNet	72.76	90.52	x	x	x	x	x	x	x
tsn_r50_320p_1x1x8_100e_kinetics400_rgb	short-side 320	8x3	ResNet50	ImageNet	72.41	90.55	x	x	11.1 (25x3 frames)	8344	ckpt	log	json
tsn_r50_320p_1x1x8_110e_kinetics400_flow	short-side 320	8x4	ResNet50	ImageNet	57.76	80.99	x	x	x	8473	ckpt	log	json
tsn_r50_320p_1x1x8_kinetics400_twostream [1: 1]*	x	x	ResNet50	ImageNet	74.64	91.77	x	x	x	x	x	x	x
tsn_r50_dense_1x1x8_100e_kinetics400_rgb	340x256	8	ResNet50	ImageNet	70.77	89.3	68.75	88.42	12.2 (8x10 frames)	8344	ckpt	log	json
tsn_r50_video_1x1x8_100e_kinetics400_rgb	340x256	8	ResNet50	ImageNet	69.22	88.69	x	x	x	21558	ckpt	log	json
tsn_r50_video_dense_1x1x8_100e_kinetics400_rgb	340x256	8	ResNet50	ImageNet	70.21	89.00	x	x	x	21553	ckpt	log	json

Here, We use [1: 1] to indicate that we combine rgb and flow score with coefficients 1: 1 to get the two-stream prediction (without applying softmax).

Something-Something V1

config	resolution	gpus	backbone	pretrain	top1 acc	top5 acc	reference top1 acc	reference top5 acc	gpu_mem(M)	ckpt	log	json
tsn_r50_1x1x8_50e_sthv1_rgb	height 100	8	ResNet50	ImageNet	18.55	44.80	17.53	44.29	10978	ckpt	log	json
tsn_r50_1x1x16_50e_sthv1_rgb	height 100	8	ResNet50	ImageNet	15.77	39.85	13.33	35.58	5691	ckpt	log	json

Something-Something V2

config	resolution	gpus	backbone	pretrain	top1 acc	top5 acc	reference top1 acc	reference top5 acc	gpu_mem(M)	ckpt	log	json
tsn_r50_1x1x8_50e_sthv2_rgb	height 240	8x2	ResNet50	ImageNet	32.41	64.05	30.32	58.38	10978	ckpt	log	json
tsn_r50_1x1x16_50e_sthv2_rgb	height 240	8	ResNet50	ImageNet	22.48	49.08	22.50	47.29	5698	ckpt	log	json

Moments in Time

config	resolution	gpus	backbone	pretrain	top1 acc	top5 acc	gpu_mem(M)	ckpt	log	json
tsn_r50_1x1x6_100e_mit_rgb	short-side 256	8x2	ResNet50	ImageNet	26.84	51.6	8339	ckpt	log	json

Multi-Moments in Time

config	resolution	gpus	backbone	pretrain	mAP	gpu_mem(M)	ckpt	log	json
tsn_r101_1x1x5_50e_mmit_rgb	short-side 256	8x2	ResNet101	ImageNet	61.09	10467	ckpt	log	json

Notes:

1. The gpus indicates the number of gpu we used to get the checkpoint. It is noteworthy that the configs we provide are used for 8 gpus as default. According to the Linear Scaling Rule, you may set the learning rate proportional to the batch size if you use different GPUs or videos per GPU, e.g., lr=0.01 for 4 GPUs * 2 video/gpu and lr=0.08 for 16 GPUs * 4 video/gpu.
2. The inference_time is got by this benchmark script, where we use the sampling frames strategy of the test setting and only care about the model inference time, not including the IO time and pre-processing time. For each setting, we use 1 gpu and set batch size (videos per gpu) to 1 to calculate the inference time.
3. The values in columns named after "reference" are the results got by training on the original repo, using the same model settings.

For more details on data preparation, you can refer to preparing_ucf101, preparing_kinetics400, preparing_sthv1, preparing_sthv2, preparing_mit, preparing_mmit.

Train

You can use the following command to train a model.

python tools/train.py ${CONFIG_FILE} [optional arguments]

Example: train TSN model on Kinetics-400 dataset in a deterministic option with periodic validation.

python tools/train.py configs/recognition/tsn/tsn_r50_1x1x3_100e_kinetics400_rgb.py \
    --work-dir work_dirs/tsn_r50_1x1x3_100e_kinetics400_rgb \
    --validate --seed 0 --deterministic

For more details, you can refer to Training setting part in getting_started.

Test

You can use the following command to test a model.

python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [optional arguments]

Example: test TSN model on Kinetics-400 dataset and dump the result to a json file.

python tools/test.py configs/recognition/tsn/tsn_r50_1x1x3_100e_kinetics400_rgb.py \
    checkpoints/SOME_CHECKPOINT.pth --eval top_k_accuracy mean_class_accuracy \
    --out result.json

For more details, you can refer to Test a dataset part in getting_started.