Video detection method and video detection equipment
A video detection and video technology, applied in the image field, can solve the problems that the video detection and analysis module cannot accurately identify video frames, and the frame rate is inconsistent
Active Publication Date: 2018-10-09
HUAWEI TECH CO LTD
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Problems solved by technology
[0004] The frame rate of the image collected by the camera part of the video performance test system is often inconsistent with the frame rate of the terminal display image. When the indoor user terminal switches video frames, the response delay of the indoor user terminal display will cause a video frame collected by the video performance test system to May include multiple frame markers
If multiple frame markers overlap, ghosting and blurring can result (eg Figure 2b , Figure 3b or Figure 3c shown), which causes the video detection and analysis module to be unable to accurately identify video frames
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[0039] The video detection method provided in this application can be applied to various test systems. The test system is introduced in detail as follows:
[0040] exist Figure 4a In the shown test system, the test system includes a video detection device 41 and a first display device 42 . The video detection device 41 is configured with a camera, the first display device is configured with a display, and the camera of the video detection device 41 is set opposite to the display of the first display device 42 .
[0041] exist Figure 4b In the shown test system, the test system includes a video detection device 41 , a first display device 42 and a second display device 43 . The video detection device 41 is configured with a first camera and a second camera, and both the first display device 42 and the second display device 43 are configured with a display, and the first camera of the video detection device 41 is set opposite to the display of the first display device 42, t...
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The invention discloses a video detection method comprising the steps that video detection equipment generates a source video, each video frame of the source video includes a frame mark area and a frame mark; the frame mark positions of all the video frames in the source video are different; and after the source video is provided to first display equipment, the video detection equipment photographs the first video played by the first display equipment so as to generate a second video, the target video frame is selected from the second video, the frame mark position of the target video frame isacquired, and the corresponding relationship between the target video frame and the video frames of the source video is determined according to the frame mark position of the target video frame. Theinvention also provides the video detection equipment capable of realizing the video detection method. The video frames can be accurately identified.
Description
technical field [0001] The present application relates to the field of image technology, and in particular to a video detection method and video detection equipment. Background technique [0002] In video applications, more and more attention is paid to video quality. Video quality includes clarity, fluency, and real-time performance. The video fluency index is generally reflected in the frame rate displayed on the image display device. The higher the frame rate, the better the video fluency. [0003] see figure 1 , the existing test system includes video performance test system, visitor call terminal and indoor user terminal. The visitor call terminal includes a camera, and the indoor user terminal includes a display, and the visitor call terminal and the indoor user terminal can transmit video frames through the transmission network. The existing image detection method is roughly as follows: the video test source is composed of images with frame marks, and the visitor ...
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IPC IPC(8): H04N21/44
CPCH04N21/44008
Inventor 陈现迎王耕
Owner HUAWEI TECH CO LTD