A method and device for image retrieval
A technology of pictures and target pictures, which is applied in still image data retrieval, metadata still image retrieval, character and pattern recognition, etc., can solve the problem of not being able to search for target pictures, and achieve the effect of alleviating recognition errors
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 This application provides a picture retrieval method to alleviate the problem in the prior art that the target picture cannot be searched due to the wrong recognition of the text in the picture, see figure 1 , this method includes:
 Step 11: Perform text recognition on the image to be retrieved, and determine the character string to be retrieved corresponding to the image to be retrieved according to the result of the text recognition.
 Specifically, to perform text recognition on the image to be retrieved, OCR technology or other text recognition technologies may be used. OCR technology determines the shape of text in a picture by detecting dark and light patterns, and then uses character recognition methods to translate the shape into computer text. For the characters in the picture, the text in the image is converted into a text format by the recognition software, which can be further edited and processed by the word processing software.
Based on the solutions provided in the above embodiments, this embodiment provides a method for image retrieval. In this embodiment, the target character string is "one-click application", and the text in the image to be retrieved is "one-key application". Recognition error, "key" is recognized as "chain", so that the character string to be retrieved is "a chain application". In this case, the implementation process of the method provided by this application is as follows:
 The target four-corner number corresponding to the target string "one-click application" is "10000857405000635727", and the four-corner number to be retrieved corresponding to the search string "one-chain application" is "10000847355000635727". The above method of converting a string to a four-corner number is implemented by reference The method described in Example 1 is converted according to the four-corner number rule. In this example, the four-corner number corresponding to one character is...
 Based on the solutions provided by the above embodiments, the embodiments of the present application also provide a picture retrieval device, such as Figure 7 shown, including:
 Character string determining module 71, carry out text recognition to the image to be retrieved, and determine the character string to be retrieved corresponding to the image to be retrieved according to the result of character recognition;
 The four-corner number generation module 72 generates the four-corner number to be retrieved according to the character string to be retrieved;
 The similarity determining module 73 calculates the similarity between the four-corner number to be retrieved and the target four-corner number;
 The target picture determining module 74 determines the picture to be retrieved as the target picture corresponding to the target four-corner number when the similarity satisfies a preset condition.
 This application converts the ...
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