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Outdoor face identifying method and system

A face recognition system and face recognition technology, applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of face recognition performance degradation and achieve good robustness, good recognition performance, and high recognition efficiency Effect

Active Publication Date: 2011-06-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to at least solve one of the above-mentioned technical problems, especially to solve the defect that the illumination changes easily lead to the decline of face recognition performance when face recognition is carried out outdoors.

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  • Outdoor face identifying method and system
  • Outdoor face identifying method and system
  • Outdoor face identifying method and system

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0022] Such as figure 1 As shown, it is a flowchart of an outdoor face recognition method according to an embodiment of the present invention, including two parts: face classifier training and face recognition.

[0023] Among them, face classifier training includes the following steps:

[0024] Step S101, collecting face samples under five lighting conditions.

[0025] In the embodiment of the present invention, a wide dynamic camera and an automatic aperture lens are used to obtain a face picture, and of course other cameras may also ...

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Abstract

The invention provides an outdoor face identifying method and system. The method comprises the steps of face classifier training and face identifying. The face classifier training is used for training a face classifier which generates various illumination conditions, judging the illumination condition according to the illumination threshold when the face identifying is carried out, selecting an optimal face classifier, carrying out the face identifying, and outputting an identification result. The outdoor face identifying method and system provided by the invention have good robustness on drastic illumination variation when the face identifying is carried out outdoors, the identification performance is good, and the identification efficiency is high.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to an outdoor face recognition method and system. Background technique [0002] In recent years, face recognition technology has been more and more used in various fields, such as the identification of criminals in the public security system, the verification of various certificates and actual certificate holders, the security system of banks, the monitoring system of customs and the automatic door guard system Wait. [0003] The current face recognition methods and systems are all proposed for indoor conditions, and face many severe problems in practical applications, such as: [0004] Illumination change problem: A large number of recognition systems need to work outdoors all-weather, and the lighting conditions during the camera must have drastic changes, making the performance of the recognition system drop sharply with the change of the lighting environment; [0005] Postur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 徐涛危春波
Owner BYD CO LTD