VMAF is modern reference metric developed by Netflix in cooperation with the University of Southern California. VQMT has full support of VMAF with multiple configuration switches. MSU VQMT support the following VMAF models: VMAF 0.60, VMAF 0.61 (2k, 4k), VMAF 0.62 (2k, 4k), VMAF 0.63 (2k), also, you can compute phone model and elementary features of VMAF. You can use custom model in pkl format with VQMT.

VMAF consist of 4 features (ADM, VIF, Motion, ANSNR) and 35 elementary features, but VMAF models uses only 6 of them: adm2, motion2, vif_scale0, vif_scale1, vif_scale2, vif_scale3. VMAF applies an SVM model to this set of features, which depends on current settings. After applying SVM, the value is clipped to interval 0..100 by default. Motion feature is the only temporal feature, it consider adjacent frames. To calculate VMAF value for current frame it is needed to use the previous frame and the next frame.

VMAF can also compute confidence intervals by applying multiple models and calculating standard deviation of result. VMAF has models, that aimed for 4k and 2k. By default, VQMT will automatically select the correct model by the resolution of input video.

Since VQMT 13 VMAF has a real block-wise visualization, which computes individual VMAF value for each 16x16 block of image. You also can visualize every feature besides motion (ADM, VIF, ANSNR).

Benchmark

Implementation	System & settings	Colors	Resolution	FPS	Sec. per frame
VQMT 14.0 OpenCL	OpenCL	Y	HD 720p	78.35	0.014
VQMT 14.0 OpenCL	OpenCL	Y	FullHD 1080p	38.95	0.028
VQMT 14.0 OpenCL	OpenCL	Y	4K 2160p	9.94	0.113
VQMT 14.0 default	multithreaded	Y	HD 720p	17.68	0.06
VQMT 14.0 default	multithreaded	Y	FullHD 1080p	8.03	0.134
VQMT 14.0 default	multithreaded	Y	4K 2160p	1.86	0.616
VQMT 14.0 default	singlethreaded	Y	HD 720p	5.93	0.177
VQMT 14.0 default	singlethreaded	Y	FullHD 1080p	2.78	0.38
VQMT 14.0 default	singlethreaded	Y	4K 2160p	0.66	1.567

Measurements were done on VQMT 14.0 BETA r12792 PRO for Windows.
CPU: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, 8 cores
GPU: NVIDIA CUDA/GeForce GTX 660 Ti
Values can vary depending on system configuration, input format and other factors

Implementation	System & settings	Colors	Resolution	FPS	Sec. per frame
VQMT 13.1 OpenCL	OpenCL	Y	HD 720p	80.5	0.013
VQMT 13.1 OpenCL	OpenCL	Y	FullHD 1080p	40.25	0.027
VQMT 13.1 OpenCL	OpenCL	Y	4K 2160p	10.12	0.11
VQMT 13.1 default	multithreaded	Y	HD 720p	17.96	0.058
VQMT 13.1 default	multithreaded	Y	FullHD 1080p	8.03	0.132
VQMT 13.1 default	multithreaded	Y	4K 2160p	1.91	0.593
VQMT 13.1 default	singlethreaded	Y	HD 720p	6.23	0.166
VQMT 13.1 default	singlethreaded	Y	FullHD 1080p	2.91	0.356
VQMT 13.1 default	singlethreaded	Y	4K 2160p	0.69	1.484

Measurements were done on VQMT 13.1 r12792 PRO for Windows.
CPU: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, 8 cores
GPU: NVIDIA CUDA/GeForce GTX 660 Ti
Values can vary depending on system configuration, input format and other factors

Implementation	System & settings	Colors	Resolution	FPS	Sec. per frame
VQMT 14.0 OpenCL	OpenCL	Y	HD 720p	291.17	0.005
VQMT 14.0 OpenCL	OpenCL	Y	FullHD 1080p	132.3	0.011
VQMT 14.0 OpenCL	OpenCL	Y	4K 2160p	32.23	0.048
VQMT 14.0 default	multithreaded	Y	HD 720p	192.66	0.007
VQMT 14.0 default	multithreaded	Y	FullHD 1080p	42.9	0.032
VQMT 14.0 default	multithreaded	Y	4K 2160p	10.34	0.189
VQMT 14.0 default	singlethreaded	Y	HD 720p	6.56	0.157
VQMT 14.0 default	singlethreaded	Y	FullHD 1080p	3.01	0.339
VQMT 14.0 default	singlethreaded	Y	4K 2160p	0.8	1.267

Measurements were done on VQMT 14.0 BETA r12792 PRO for Linux.
CPU: Intel(R) Xeon(R) Silver 4216 CPU @ 2.10GHz, 64 cores
GPU: NVIDIA CUDA/TITAN RTX
Values can vary depending on system configuration, input format and other factors

Example

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