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A face recognition method and device

A technology for face recognition and face recognition, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as reducing recognition performance, achieve the effect of expanding the scope of application and improving the face recognition rate

Active Publication Date: 2011-11-30
HANVON CORP
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  • Abstract
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Problems solved by technology

However, in practical applications, the inventors found that only using Gaussian difference filtering to process face images will reduce the recognition performance under normal lighting conditions

Method used

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  • A face recognition method and device
  • A face recognition method and device
  • A face recognition method and device

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] In the following embodiments, the user's pre-registered face images stored in the database are called "training samples", and the currently collected face images to be recognized are called "test samples".

[0027] The face recognition method provided by the embodiment of the present invention, such as figure 1 As shown, its method steps include:

[0028] S101. Acquire an original human face test sample to be recognized, and perform Gaussian difference...

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Abstract

The invention provides a face recognition method and device, and relates to the technical fields of pattern recognition and biological feature recognition. The face recognition method and device can be used for carrying out effective recognition under various illumination conditions, and enhances the performance of face recognition. The method comprises the following steps: acquiring an original face test sample to be recognized, and carrying out Gaussian difference filter treatment on the original face test sample to obtain a filtered face test sample; comparing the original face test samplewith a prestored original face training sample set registered under normal illumination conditions, comparing the filtered face test sample with a prestored face training sample set subjected to Gaussian difference filter, and finding out the recognition object corresponding to the original face test sample from the original face training sample set; and computing to obtain an overall SCI (Sparsity Concentration Index) of the original face training sample of the recognition object and the filtered face training sample, and judging whether the original face test sample is a registered face according to the SCI.

Description

technical field [0001] The invention relates to the technical field of pattern recognition and biological feature recognition, in particular to a face recognition method and device. Background technique [0002] Face recognition is a biometric recognition technology based on technologies such as computer, image processing and pattern recognition. Recently, as face recognition is widely used in commercial and law enforcement departments, such as criminal identification, credit card identification, security system, on-site monitoring, etc., face recognition technology is getting more and more attention. [0003] During the recognition process, the change of lighting conditions is one of the main reasons for the decline of the face recognition rate. For example, the face registration of people indoors can be recognized normally under indoor conditions, but the recognition effect outdoors is very poor, and even because of the difference in indoor and outdoor lighting conditions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/66
Inventor 黄磊刘昌平许力
Owner HANVON CORP
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