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A video test method and device

A test method and video technology, applied in the field of testing, can solve problems such as inability to accurately identify mosaics, so as to improve test efficiency and the effect of

Active Publication Date: 2019-12-24
HISENSE VISUAL TECH CO LTD
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  • Claims
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Problems solved by technology

[0005] The embodiment of the present invention proposes a video testing method and device to solve the problem that the prior art cannot accurately identify the mosaic in the video

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  • A video test method and device
  • A video test method and device
  • A video test method and device

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Embodiment Construction

[0048] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] In the actual digital radio frequency receiving test, to evaluate whether there is a problem with the video quality, it is usually to identify the mosaic appearing in the video. In the process of video playback, the appearance of mosaic is generally random, and usually there is no gradual change between frames, and it can have strong edge features, which will cause the deterioration of the brightness and color levels of the video, and it is not easy to correct Identify image details. The current method of identifying mosaics in RF receiving tests is usually judged by human eyes subjectively, which will cause human eye fatigue, reduced test efficiency, inaccurate judgments, and subjective deviations after the evaluators watc...

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Abstract

The embodiment of the invention provides a video test method and a video test device, and relates to the technical field of tests. The video test method comprises the steps of during a test video playing process, building a gradient information value matrix according to a played video image, wherein the gradient information value matrix comprises function matrix information of at least one key pixel point; detecting whether mosaics occur in the test video according to the function matrix information of each key pixel point in the gradient information value matrix; and when the mosaics occur inthe test video, generating a mosaic test result corresponding to the test video. According to the method and device provided by the embodiment of the invention, the condition that whether the mosaicsoccur in the test video can be objectively and accurately detected, the series of defects that may appear by a mosaic identification method in a current radio frequency receiving test that adopts human eyes to perform subjective evaluation are overcome, and the test efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a video testing method and a video testing device. Background technique [0002] With the rapid development of science and technology, devices such as televisions and mobile phones are becoming more and more popular, bringing great convenience to people's life, study and work. [0003] These devices can usually perform video playback on received video digital signals through a screen, so that users can watch the video being played. In order to ensure the quality of video playback, it is usually necessary to evaluate the video digital signals received by these devices to determine whether the digital test indicators of the video digital signals are qualified. [0004] At present, it is mainly judged whether the digital test index of the received video digital signal is qualified through the digital TV radio frequency receiving test method. Specifically, the current digital radio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00H04N21/44
CPCH04N17/00H04N21/44008
Inventor 孙盼盼孙婧田甜
Owner HISENSE VISUAL TECH CO LTD
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