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US 9,319,670 B2Granted
Video data quality assessment method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsLina Sun, Shan Gao, Qingpeng Xie
Life of this patent
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Abstract
A video data quality assessment method and apparatus are disclosed. The video data quality assessment method includes: acquiring a compression distortion parameter of video data; acquiring a frame impairment distortion parameter/video data rebuffering parameter; and calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter, where the video quality parameter is a difference between the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter.
Claims27
A video data quality assessment method, comprising:
- acquiring a compression distortion parameter of video data according to packet header information of a video data packet;
- acquiring a frame impairment distortion parameter according to the packet header information of the video data packet;
- and
- calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter,
- wherein the video quality parameter comprises a difference between the compression distortion parameter and the frame impairment distortion parameter,
- wherein acquiring the compression distortion parameter of the video data comprises:
- acquiring a bit rate and a frame rate of a video stream;
- and
- calculating the compression distortion parameter according to the bit rate and the frame rate of the video stream,
- wherein the compression distortion parameter increases to approach a maximum value as the bit rate increases, and
- wherein the compression distortion parameter, under the bit rate, decreases as the frame rate increases.
8 more elements
A video data quality assessment method, comprising:
- acquiring a compression distortion parameter of video data according to packet header information of a video data packet;
- acquiring a frame impairment distortion parameter according to the packet header information of the video data packet;
- and
- calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter,
- wherein the video quality parameter comprises a difference between the compression distortion parameter and the frame impairment distortion parameter,
- wherein acquiring the compression distortion parameter of the video data comprises:
- acquiring a bit rate, a frame rate, and video content complexity of a video stream;
- and
- calculating the compression distortion parameter according to the bit rate, the frame rate, and the video content complexity of the video stream,
- wherein the compression distortion parameter increases to a maximum value as the bit rate increases, and decreases as the video content complexity increases, and
- wherein the compression distortion parameter, under the bit rate, decreases as the frame rate increases.
8 more elements
A video data quality assessment method, comprising:
- acquiring a compression distortion parameter of video data according to packet header information of a video data packet;
- acquiring a video data rebuffering parameter according to the packet header information of the video data packet;
- acquiring a frame impairment distortion parameter according to the packet header information of the video data packet;
- and
- calculating a video quality parameter according to the compression distortion parameter, the video data rebuffering parameter and the frame impairment distortion parameter,
- wherein the video quality parameter is a difference obtained by subtracting the frame impairment distortion parameter and the video data rebuffering parameter from the compression distortion parameter.
3 more elements
A video data quality assessment apparatus, comprising:
- a compression distortion calculation unit configured to acquire a compression distortion parameter of video data according to packet header information of a video data packet;
- a frame impairment distortion calculation unit configured to acquire a frame impairment distortion parameter according to the packet header information of the video data packet;
- and
- a combination unit configured to calculate a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter,
- wherein the video quality parameter comprises a difference between the compression distortion parameter and the frame impairment distortion parameter,
- wherein the compression distortion calculation unit comprises:
- a parameter extraction unit configured to acquire a bit rate and a frame rate of a video stream;
- and
- a calculation unit configured to calculate the compression distortion parameter according to the bit rate and the frame rate of the video stream,
- wherein the compression distortion parameter increases to approach a maximum value as the bit rate increases, and
- wherein the compression distortion parameter decreases, under the bit rate, as the frame rate increases.
8 more elements
A video data quality assessment apparatus, comprising:
- a compression distortion calculation unit configured to acquire a compression distortion parameter of video data according to racket header information of a video data packet;
- a frame impairment distortion calculation unit configured to acquire a frame impairment distortion parameter according to the packet header information of the video data packet;
- and
- a combination unit configured to calculate a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter,
- wherein the video quality parameter comprises a difference between the compression distortion parameter and the frame impairment distortion parameter,
- wherein the compression distortion calculation unit comprises:
- a parameter extraction unit configured to acquire a bit rate, a frame rate, and video content complexity of a video stream;
- and
- a calculation unit configured to calculate the compression distortion parameter according to the bit rate, the frame rate, and the video content complexity of the video stream,
- wherein the compression distortion parameter increases to a maximum value as the bit rate increases and decreases as the video content complexity increases, and
- wherein the compression distortion parameter, under the bit rate, decreases as the frame rate increases.
8 more elements
Dependencies are inferred from the claim text.