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Image retrieval method based on color and image characteristic combination

A color feature and color technology, applied in image analysis, image communication, image data processing, etc., can solve problems such as incorrect results and complex calculations

Inactive Publication Date: 2002-08-21
SAMSUNG ELECTRONICS CO LTD
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Calculations are complex and results may not be correct

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  • Image retrieval method based on color and image characteristic combination
  • Image retrieval method based on color and image characteristic combination
  • Image retrieval method based on color and image characteristic combination

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Embodiment Construction

[0044] In the image retrieval method according to the present invention, data images having features similar to those of a query image are extracted from an image database in which the data images are indexed by a feature descriptor. figure 1 is a flowchart illustrating the main steps of a preferred embodiment of the image retrieval method according to the present invention. refer to figure 1 , the image retrieval method according to the present invention involves calculating the color and texture distances between the query image and each data image stored in the image database (step 102).

[0045] In this embodiment, it is assumed that each data image stored in the image database is divided into a plurality of regions according to color and / or texture characteristics, and the image region that the user wants to search in the image database exists in the region divided into a plurality of images. in a data image of the region. The image region being searched is used as the ...

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Abstract

An image retrieval method with improved performance in which a data image similar to a query image is retrieved by appropriately combining colour and texture features. The method for retrieving a data image similar to a query image in an image database containing a plurality of data images involves: calculating colour and texture distances between a query image and each data image in the image database; weighting the calculated colour and texture distances with predetermined weighting factors; calculating a feature distance between the query image and each data image by combining the weighted colour and texture distances by considering human's visual perception attributes; and determining the data image similar to the query image using the feature distance. According to the image retrieval method, data images similar to a query image can be retrieved based on the human visual perception mechanism by combining both colour and texture features extracted from image regions. In particular, the image region based retrieval enables much accurate retrieval of more objects and many kinds of information from a single image.

Description

technical field [0001] The present invention relates to an image retrieval method, more particularly to an image retrieval method based on color and texture descriptors that are meaningful in human visual perception. Background technique [0002] In recent years, the rapid increase of multimedia data has facilitated research in the field of data retrieval and databases for effective management of multimedia data. In particular, research in the field of image retrieval has focused either on existing text-based image retrieval methods or on more advanced image retrieval methods. For text-based data retrieval, retrieving the required data from large-scale databases requires great efforts, and it is not applicable for partial feature-based retrieval or retrieval of large amounts of data. To solve this shortcoming, a search method using a numerical feature descriptor (descriptor) that well characterizes multimedia data has been explored. [0003] The m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T7/00G06T7/20H04N5/76
CPCG06F17/3025Y10S707/99936G06F17/30262G06F16/5838G06F16/5862
Inventor 崔良林赵南翊郭征元
Owner SAMSUNG ELECTRONICS CO LTD
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