[1]TONG Ying.Local binary pattern based on the directions and its application in facial expression recognition[J].CAAI Transactions on Intelligent Systems,2015,10(3):422-428.[doi:10.3969/j.issn.1673-4785.201405016]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
10
Number of periods:
2015 3
Page number:
422-428
Column:
学术论文—机器感知与模式识别
Public date:
2015-06-25
- Title:
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Local binary pattern based on the directions and its application in facial expression recognition
- Author(s):
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TONG Ying
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Department of Communication Engineering, Nanjing Institute of Technology, Nanjing 211167, China
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- Keywords:
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facial expression recognition; local binary pattern (LBP); central nearest neighbor classification; directional local binary pattern (DLBP); Gabor; local directional pattern (LDP)
- CLC:
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TP391.41
- DOI:
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10.3969/j.issn.1673-4785.201405016
- Abstract:
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The traditional local binary pattern (LBP) algorithm for facial expression recognition could not describe the gray value change in different directions of somel expression regions, such as eyes, mouth, forehead, etc. The recognition result is not satisfied. This paper presents a simple and robust method, namely local binary pattern based on the directions (DLBP), which improves the coding pattern of LBP and encoded the difference from the horizontal, vertical and diagonal directions. Experimental results on JAFFE and Cohn-Kanade databases show that DLBP algorithm has achieved 5% and 1% higher recognition rates than other existing algorithms, such as LBP and Gabor. It has a strong robustness to Gaussian noise and salt and pepper noise compared with LBP, and Its feature extraction time is reduced by 50% compared to LDP. Therefore, the DLBP algorithm is a fast and effective feature descriptor.