NDLI: Fast search real-time face recognition based on DCT coefficients distribution

Content Provider	IET Digital Library
Author	Hsia, Shih Chang Wang, Szu Hong Chen, Chia Jung
Abstract	The authors propose an adaptive face recognition algorithm based on the discrete cosine transform (DCT) coefficients approach. For the database's establishment, the face images are pre-processed with colour transform, hair cutting, and background removing to eliminate non-face information. The recognised kernel applied the weights of DCT coefficient distribution with the entire image transformation, to avoid position mismatch and reduce the light effect. The key coefficients of DCT are chosen from the training database by maximum variance. The fast search mode can reject 90% weak candidates with few coefficients to fasten the processing speed. The significant coefficients weighting methods are used to enhance face features. Only using 50 coefficients per picture, the recognition rate can achieve 95% for ORL face database testing. For real-time recognition, camera imaging is processed with algorithms using C-programming based on Windows system. The recognition rate can achieve 95% and the speed is about nine frames per second for real-time recognition in practice.
Starting Page	570
Ending Page	575
Page Count	6
ISSN	17519659
Volume Number	14
e-ISSN	17519667
Issue Number	Issue 3, Feb (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/14/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2018.6175
Journal	IET Image Processing
Publisher Date	2019-11-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Face Recognition Algorithm Camera Imaging Computer Vision And Image Processing Technique DCT Coefficient Distribution Discrete Cosine Transform Face Feature Face Image Face Recognition Fast Search Mode Fast Search Real-time Face Recognition Feature Extraction Image Recognition Image Transformation Integral Transforms Key Coefficient Nonface Information ORL Face Database Testing Real Time System Real-time Recognition Recognition Rate Spatial And Pictorial Database Training Database Visual Database
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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