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Image retrieval method and device

An image retrieval and image technology, applied in the field of information retrieval, can solve the problems of high matching calculation complexity, large matching calculation amount, low image retrieval efficiency, etc., achieve low computational complexity, small matching calculation amount, and improve image retrieval efficiency. Effect

Inactive Publication Date: 2015-07-01
作业帮教育科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the current image retrieval method, when using image features to match in the retrieval model, the amount of matching calculation is large, and the matching calculation complexity is high, resulting in low image retrieval efficiency

Method used

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Embodiment 1

[0052] The embodiment of the present invention provides an image retrieval method, please refer to figure 1 , which is a schematic flow chart of an image retrieval method provided by an embodiment of the present invention. As shown in the figure, the method includes the following steps:

[0053] S101. Obtain an image to be retrieved.

[0054] S102. Obtain text information included in the image to be retrieved.

[0055] S103. Search by using the text information to obtain a search result matching the image to be searched.

[0056]It should be noted that the terminals involved in the embodiments of the present invention may include but not limited to personal computers (Personal Computer, PC), personal digital assistants (Personal Digital Assistant, PDA), wireless handheld devices, tablet computers (Tablet Computer), Mobile phones, MP3 players, MP4 players, etc.

[0057] It should be noted that the execution subject of S101-S103 may be an image retrieval device, and the devic...

Embodiment 2

[0060] Based on the image retrieval method provided by the first embodiment above, the embodiment of the present invention specifically describes the method for obtaining the image to be retrieved in S101. This step can specifically include:

[0061] Preferably, in the embodiment of the present invention, the method for obtaining the image to be retrieved may include but not limited to: using an image input device to obtain the image to be retrieved, and then receiving the image to be retrieved from the image input device. Alternatively, the image to be retrieved may also be obtained according to the image selected by the user in the photo album.

[0062] Preferably, the image input device may include but not limited to: a scanner or a camera in a terminal.

Embodiment 3

[0064] Based on the image retrieval method provided by the first embodiment above, the embodiment of the present invention specifically describes the method for obtaining the text information contained in the image to be retrieved in S102. This step can specifically include:

[0065] For example, in the embodiment of the present invention, the method for obtaining the text information contained in the image to be retrieved may include but not limited to: using optical character recognition (Optical Character Recognition, OCR) technology to perform character recognition processing to obtain the text information contained in the image to be retrieved.

[0066] For example, the method of using OCR technology to perform character recognition processing on the image to be retrieved may include but not limited to:

[0067] First, the image to be retrieved is binarized, that is, the gray value of the pixel in the image to be retrieved is set to 0 or 255 to obtain a black and white i...

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Abstract

The embodiment of the invention provides an image retrieval method and device. According to the method, by obtaining an image to be retrieved, text information contained in the image to be retrieved is obtained accordingly; furthermore, the text information is utilized for conducting the retrieval so that a retrieval result matched with the image to be retrieved can be obtained. Therefore, by means of the technical scheme of the method and device, the complexity of image retrieval can be reduced, and the image retrieval efficiency can be raised.

Description

【Technical field】 [0001] The invention relates to the technical field of information retrieval, in particular to an image retrieval method and device. 【Background technique】 [0002] With the rapid development of Internet technology and the popularization of smart terminals, images have become the main way for people to record and share information, which has spawned a large number of applications that use images as retrieval input, and image retrieval technology has emerged. [0003] The current image retrieval method is: it is necessary to extract feature data such as external information, content features, and shape features of the image to be retrieved, and use these feature data to match in the retrieval model to obtain a retrieval image that matches the image to be retrieved. result. [0004] However, in the current image retrieval methods, when using image features to match in the retrieval model, the amount of matching calculation is large, and the complexity of mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K9/20
Inventor 梁爽刘惠庭施鹏
Owner 作业帮教育科技(北京)有限公司
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