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Recognition method and device for a smiling face image

A recognition method and recognition device technology, applied in the field of image processing, to achieve the effect of deburring and good extraction effect

Active Publication Date: 2015-11-25
重庆中星微人工智能芯片技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for recognizing smiley face images, which can quickly and accurately recognize smiley faces, and solve the technical problem that the prior art cannot capture and retrieve smiley face images quickly and accurately

Method used

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  • Recognition method and device for a smiling face image
  • Recognition method and device for a smiling face image
  • Recognition method and device for a smiling face image

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0042] figure 1 The flow chart of the steps of the identification method provided by the embodiment of the present invention, such as figure 1 As shown, the recognition method of the smiling face image includes:

[0043] Step 101, performing face detection on the input image, and determining an area in the input image that embodies facial features;

[0044] Step 102, planning N mutually nested integration areas in the area embodying facial features, the i+1th integration area is obtained by increasing the area of ​​the predetermined step size on the basis of the i-th integration area, 1 ≤i

[0045] Step 103, perform horizontal integral projection on each integration area to ...

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Abstract

The invention provides a method and device for identifying a smiling face image. The method comprises the steps of: 1, performing human face detection on an input image to determine an area embodying a human face feature; 2, planning N integration areas, which are mutually nested, on the area, wherein the (i+1)th integration area is obtained by increasing a preset step size of area on the basis of the ith integration area, and the Nth integration area is an entire area embodying the human face feature; 3, performing transverse integration projection on each integration area to obtain projection vectors and peak and valley points, wherein all the projection vectors and peak and valley points constitute feature vectors; and 4, classifying the feature vectors of the input image according to a preset classifier trained by the feature vectors of a sample image, and determining whether the input image is a smiling face image or not. According to the invention, smiling face identification can be rapidly and accurately performed, and the technical problem that the prior art cannot rapidly and accurately capture and search the smiling face image is solved.

Description

technical field [0001] The invention relates to image processing technology, in particular to a method and device for recognizing smiling face images. Background technique [0002] At present, there are more and more applications of digital image devices such as digital video cameras, digital cameras, and video cameras. When people use these devices to capture images, they often hope that the faces in the captured images have better facial expressions, such as smiling expressions. In the actual shooting process, due to objective factors such as shooting timing and shooting speed, it may not be possible to capture smiling faces, especially when shooting children, because it is difficult for children to maintain a smiling expression for a long time, it is often impossible to capture children smiley face. [0003] In view of the application requirements of the above situations, it is required that the camera device can quickly and automatically shoot when a smiling face is de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 王俊艳黄英
Owner 重庆中星微人工智能芯片技术有限公司
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