Image classification method and image classification device

A classification method and a classification device technology, which are applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of limiting the scope of application and increasing the labor load of the classifier, and achieve the effect of accurate classification

Inactive Publication Date: 2010-11-03
SONY CORP +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, since this spatial relationship is explicitly defined, it increases the amount of labor required to train the classifier and limits the scope of application of the scheme

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  • Image classification method and image classification device
  • Image classification method and image classification device
  • Image classification method and image classification device

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Embodiment Construction

[0024] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0025] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the ...

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Abstract

The invention discloses an image classification method and an image classification device. The image classification method comprises the following steps: image segmentation: segmenting inputted image into a plurality of areas; feature extraction: extracting visual feature of each area; a first classification: base on the extracted visual feature of each area, using a first classifier to carry out multiclass classification for the area according to preset multiclass; context feature generation: generating context feature of the image based on classification result of each area; and a second classification: based on the generated context feature of the image, determining image category with a second classifier. According to the technical scheme of the invention, image classification performance can be effectively improved by utilizing context information of images, without displaying space relation among objects in defined mages.

Description

technical field [0001] The present invention generally relates to the field of pattern recognition and multimedia technology, in particular to an image classification method and an image classification device. Background technique [0002] With the development of multimedia technology and the popularization of the Internet, it is becoming easier for people to obtain various multimedia information, among which images are the most numerous. Retrieving desired images has become a growing concern. [0003] A traditional approach is to manually annotate images by keywords. However, this method is extremely time-consuming, and different people may produce different annotation results, for example, an image containing chrysanthemum may be annotated as "chrysanthemum" or "yellow flower". [0004] In order to overcome the limitations of manual labeling, for example, a method based on Content-based Image Retrieval (CBIR), in which low-level visual features such as color, texture, s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
Inventor 吴伟国路红薛向阳
Owner SONY CORP
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