Video source detecting method and device
A video source, a technology to be detected, applied in the direction of image data processing, instruments, calculations, etc., can solve the problems of affecting the smoothness of video playback, affecting the viewing effect of viewers, and deteriorating picture quality, so as to improve fluency and picture quality Effect
Active Publication Date: 2016-12-07
BEIJING QIYI CENTURY SCI & TECH CO LTD
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[0004] However, stretching or shrinking operations will affect the fluency of video playback, and the quality of the played picture will also deteriorate, directly affecting the viewing effect of the audience
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[0084] 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.
[0085] One of the core ideas of the embodiment of the present invention is to select a specific range in the video source image, and then perform image recognition on the specific range to extract the logo area template, which may include the logo of the TV station, and establish a template library for the logo area ; Select a specific range of the video source image from the same signal source, and then perform the image recognition step to extract the logo area, and compare it with the logo area template in the template library. Whether the content and image size are consistent, to achieve video detection The effect of whether the source size is normal.
[0086] refer to figure 1 , which shows a flow chart of the steps of Embod...
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The invention provides a video source detecting method and device. The method comprises that one or multiple object mark area(s) is / are determined in a video source image to be detected; an object characteristic value of each object mark area is calculated; the similarity between the object characteristic value of the object mark area and a preset reference characteristic value of the corresponding reference mark area is calculated; when the similarity is greater than a preset threshold, an object length to width ratio of the object mark area is calculated; whether the object length to width ratio of the object mark area is the same with a reference length to width ratio of the reference mark area is determined, and if YES, it is determined that video source data does not change; and otherwise, it is determined that the video source data changes. According to the invention, the length to width ratio of the object mark area is compared with that of the reference mark area, whether the size of the video source image changes is detected accurately, further whether the video source changes is detected accurately, the playing smoothness and image quality of the video source are improved, and convenience is provided for checking for the video source.
Description
technical field [0001] The invention relates to the technical field of video data processing, in particular to a video source detection method and a video source detection device. Background technique [0002] With the development of science and technology, people's entertainment life is becoming more and more abundant. TV programs of various TV stations have sprung up like mushrooms after rain. Generally, users will collect and record TV programs through video capture cards connected to TVs or through devices such as hard disk video recorders. Connect the TV to record TV programs, and then upload them to the network through simple editing and format conversion. [0003] Because watching video on the Internet is not limited by time, people usually like to use a fixed player to watch their favorite TV programs on the Internet. The current video source size (aspect ratio) is mainly divided into 4:3, 16: 9. 21:9, and the size of the video source given by the TV station is gene...
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IPC IPC(8): G06T7/00
CPCG06T7/0002G06T2207/10016
Inventor 邱学忠陈爱云姚婷
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD