Unlock instant, AI-driven research and patent intelligence for your innovation.

Image similarity calculation method and device

A technology of image similarity and calculation method, applied in the field of image processing, can solve problems such as not caring about spatial position, ignoring local features of color, and poor similarity calculation effect

Active Publication Date: 2012-11-21
BEIJING FEINNO COMM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the scheme using the color histogram focuses on the overall characteristics of the color, does not care about the spatial position of each color, and ignores the local characteristics of the color, so the similarity calculation effect is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image similarity calculation method and device
  • Image similarity calculation method and device
  • Image similarity calculation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The core idea of ​​the present invention is to divide the image into multiple color blocks, and combine the chi-square and linear gray value of the RGB components of the color blocks to calculate the color feature vector of the image, and perform similarity calculation according to the color feature vector. Since the chi-square of the RGB component of the color block emphasizes the local features of the image, while the linear grayscale of the color block emphasizes the overall grayscale features of the image, the similarity calculation accuracy of this scheme is higher

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] For given two images, the technical solution of the present invention generally includes the following steps:

[0057] In the first step, after converting each imag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an image similarity calculation method and device, relating to the field of an image processing technology. The method disclosed by the invention comprises the following steps: dividing an image into a plurality of color blocks; calculating the feature phasor of the image based on chi-squares and linear grey scale values of RGB (red green and blue) components of the color blocks; and then, calculating the similarity based on the feature phasor. In the technical scheme, the chi-squares of the RGB components of the color blocks emphasize local features of the image, and the linear grey scales of the color blocks emphasize the overall grey scale feature of the image. Thus, the similarity calculation scheme disclosed by the invention has high accuracy.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image similarity calculation method and device. Background technique [0002] With the rapid development of multimedia technology and computer network, the number of digital images is increasing at an alarming rate. In many scenarios such as image retrieval, it is necessary to compare the similarity of multiple images. [0003] The existing image similarity comparison function is based on the color of the picture, that is, the color histogram is used, and the proportion of different colors in the entire image is used as the basis for similarity, and the similarity between two images is measured by the difference in color . For example, the review of pictures uploaded by website users can use this solution for preliminary review. [0004] However, the scheme using the color histogram pays attention to the overall characteristics of the color, does not care about the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06T7/00
Inventor 张雁飞
Owner BEIJING FEINNO COMM TECH