A method and system for identifying a station logo
A station logo recognition and station logo technology, applied in the field of station logo recognition, can solve the problems of low recognition rate, similar colors and transparent station logos are difficult to identify, etc.
Inactive Publication Date: 2017-02-08
TCL CORPORATION
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[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a method and system for station logo recognition, which aims to solve the problems of difficult identification of similar colors and transparent station logos and low recognition rate in the existing station logo recognition technology
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[0071] The present invention provides a method and system for identifying a station logo. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0072] see figure 1 , figure 1 It is a flow chart of a preferred embodiment of a station logo recognition method of the present invention, as shown in the figure, which includes:
[0073] S101. Extracting positive samples and negative samples of the required detection logo from a plurality of original images, the positive samples are region images containing the required detection logo, and the negative samples are region images not containing the required detection logo;
[0074] S102. Perform feature corner detection on the extracted positive sample, obtain a set o...
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The invention discloses a station logo identification method and a system. The method comprises steps that similarity of each positive sample and negative sample is calculated via a characteristic angle point probability distribution matrix, a similarity set including similarity of the positive samples and the negative samples is acquired, and a similarity threshold value of a station logo needed to be detected is calculated via the similarity set; similarity to be detected of the station logo which is needed to be detected and is included by an image to be detected is calculated via the characteristic angle point probability distribution matrix, and whether the image to be detected includes the station logo needed to be detected is judged according to size relation between similarity to be detected and the similarity threshold value. According to the station logo identification method and the system, precision of station logo identification is enhanced, identification time is shortened, and identification efficiency is enhanced so that effective technical support is provided for multimedia technology video automatic searching, recording, analyzing and retrieval.
Description
technical field [0001] The invention relates to the field of station logo recognition, in particular to a station logo recognition method and system. Background technique [0002] The station logo of a TV station is an important symbol to distinguish a station. The station logo contains important information such as the station name and program orientation of the station. Using computer image processing and recognition technology to automatically identify the station logo has become a research hotspot in recent years. Its daily application in TV It can effectively perform program monitoring, video content analysis and retrieval, user viewing habits analysis, etc. [0003] Currently existing logo recognition methods mainly include: 1. Obtain the logo by using the multi-frame difference method, and recognize it by template matching; 2. Recognize based on color histogram or shape. However, most of these methods are not easy to recognize similar colors and transparent logos, an...
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IPC IPC(8): G06K9/00G06K9/46G06K9/66
Inventor 张登康邵诗强付东
Owner TCL CORPORATION