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Method for detecting skin stains on face and identifying face by utilizing skin stains

A detection method and a technology for spots and moles, applied in the field of face recognition, can solve problems such as affecting the accuracy of similarity, and achieve the effect of improving accuracy

Active Publication Date: 2012-12-12
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0009] From the description of the steps of the above method, it can be seen that the existing technology directly uses the Blob points to calculate the similarity of the image, but in practical applications, there are large differences between the Blob points. Blob points are treated equally, which will affect the accuracy of the final calculated similarity

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  • Method for detecting skin stains on face and identifying face by utilizing skin stains
  • Method for detecting skin stains on face and identifying face by utilizing skin stains
  • Method for detecting skin stains on face and identifying face by utilizing skin stains

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Embodiment Construction

[0055] The present invention needs to realize the identification of human face according to the mole spots on the human face skin, wherein the mole spots mentioned refer to points different from the base color of human face skin, such as freckles, acne, scars, etc. on the human face Moles will form. When the present invention performs face recognition, it first needs to find out the spots on the face, and then use the spots to compare the face to be recognized with the standard face as the comparison object. Among them, when extracting the mole points, the mole points are divided into multiple levels according to the significance of the mole points, so that the mole points of the two images to be compared can be compared in layers during face recognition, and each Finally, the overall similarity between the two images to be compared is calculated. Face recognition can also be realized based on the overall similarity.

[0056] The specific implementation details of the presen...

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Abstract

The invention provides a method for detecting skin stains on a face, which comprises the following steps: detecting stains on the skin of the face in a face image; calculating the significances and the features of the stains in the face image and layering the stains according to the significances. The invention also provides a method for identifying a face by utilizing skin stains, which comprises the following steps: detecting stains layered on a to-be-identified face image; calculating the spatial distance and the similarity between each stain on the to-be-identified face image and each stain on a corresponding layer in a standard face image, further calculating the similarity between the to-be-identified face image on each layer and the standard face image; and calculating the whole similarity between the to-be-identified face image and the standard face image on each layer. The invention improves the accuracy of face identification.

Description

technical field [0001] The invention relates to the field of face recognition, in particular to a method for recognizing faces by using skin spots and moles. Background technique [0002] Face recognition has a wide range of applications in the field of image processing. Existing face recognition methods mainly extract global features (such as grayscale features of the entire image, Fourier features, DCT features, etc.) or local features (such as Gabor features, LBP features, etc.) The extracted global features or local features are used to realize face recognition. With the continuous improvement of photography and camera equipment, the resolution of the image obtained by these equipment is also increasing, and correspondingly, the skin texture information that the image can express will also become more obvious. Therefore, using skin texture information to realize face recognition has become a new development direction of face recognition methods. [0003] In the prior ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 山世光谢术富陈熙霖
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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