Image feature extraction method, image searching method, server, terminal and system
An image feature extraction and image feature technology, applied in the field of image processing, can solve the problems of low accuracy and large resource consumption, and achieve the effect of improving accuracy and reducing resource consumption
Active Publication Date: 2014-05-21
ALIBABA GRP HLDG LTD
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[0006] The purpose of this application is to provide an image feature extraction method to solve the problems of low accuracy and large resource consumption in the process of retrieval of images containing text information by the server in the prior art. The specific solutions include:
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[0089] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0090] The application can be used in numerous general purpose or special purpose computing system environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor system, distributed computing environment including any of the above systems or devices, etc.
[0091] This application may be described in the general context of computer-executable instructions, such as program modules, being executed by a c...
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The invention provides an image feature extraction method, an image searching method, a server, a terminal and a system. According to the method, area positioning for an image to be searched is carried out to acquire at least one alternative area, the alternative area which satisfies the preset classification conditions is determined as the target area, area normalization processing on the target area is carried out to acquire image features corresponding to the target area after area normalization processing, and the image features are taken as image features corresponding to the image to be searched. Through the method, the server acquires the alternative area through area positioning, the target area is determined, area normalization processing on the target area is carried out, so the target area has affine and perspective invariance, feature extraction accuracy of an image containing text information is improved, accuracy of a retrieval process for the types of images is improved, and resource consumption of the server is reduced.
Description
technical field [0001] The present application relates to the technical field of image processing, in particular to an image feature extraction method, an image search method, a server, a terminal and a system. Background technique [0002] With the development of Internet technology, the Internet has become inseparable from people's lives, and more and more people choose the Internet as the primary tool for obtaining information. [0003] At present, in order to obtain the information people want through the network, the keywords corresponding to the information to be searched are usually used as search conditions and sent to the server. The server searches according to the search conditions, and then feeds back the retrieved information to the user. [0004] However, when a user needs to retrieve an image, only using the keywords corresponding to the image cannot accurately reflect the characteristics of the image. Therefore, the accuracy of the results obtained through ke...
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Login to View More IPC IPC(8): G06K9/46G06F17/30H04L29/08
Inventor 段曼妮王从德贾梦雷
Owner ALIBABA GRP HLDG LTD