TY - GEN
T1 - Enhanced multiband feature technique for face recognition under varying illumination
AU - Ch'ng, Sue Inn
AU - Seng, Kah Phooi
AU - Ang, Li Minn
PY - 2010
Y1 - 2010
N2 - This paper presents an enhanced multiband feature technique to improve the performance of face recognition under varying illumination. First, the illumination invariant subbands are extracted using wavelet packet transform and multiband feature selector. Then, histogram equalization is applied to the selected subbands to enhance the contrast of the subband (global). To reduce the noise and enhance the fine details of the facial features (local), an unsharp filter is subsequently applied to the histogram equalized subband. The unsharp filter is created by combining a Gaussian low pass filter and a negative Laplacian operator. The recognition performance of the proposed enhancement scheme is validated against the Yale B database. An improvement in recognition rate has been observed when the enhancement scheme is compared to the original unenhanced subband.
AB - This paper presents an enhanced multiband feature technique to improve the performance of face recognition under varying illumination. First, the illumination invariant subbands are extracted using wavelet packet transform and multiband feature selector. Then, histogram equalization is applied to the selected subbands to enhance the contrast of the subband (global). To reduce the noise and enhance the fine details of the facial features (local), an unsharp filter is subsequently applied to the histogram equalized subband. The unsharp filter is created by combining a Gaussian low pass filter and a negative Laplacian operator. The recognition performance of the proposed enhancement scheme is validated against the Yale B database. An improvement in recognition rate has been observed when the enhancement scheme is compared to the original unenhanced subband.
KW - Gaussian low pass filter
KW - Laplacian operator
KW - Multi band feature technique
KW - Wavelet packet transform
UR - http://www.scopus.com/inward/record.url?scp=79851469431&partnerID=8YFLogxK
U2 - 10.1109/STUDENT.2010.5687006
DO - 10.1109/STUDENT.2010.5687006
M3 - Conference Proceeding
AN - SCOPUS:79851469431
SN - 9781424475032
T3 - IEEE Conference on Sustainable Utilization and Development in Engineering and Technology 2010, STUDENT 2010 - Conference Booklet
SP - 61
EP - 64
BT - IEEE Conference on Sustainable Utilization and Development in Engineering and Technology 2010, STUDENT 2010 - Conference Booklet
T2 - IEEE Conference on Sustainable Utilization and Development in Engineering and Technology 2010, STUDENT 2010
Y2 - 20 November 2010 through 21 November 2010
ER -
