Dr. WonPil Yu Profile

Dr. WonPil Yu

Senior Researcher at ETRI

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Publications (2)

Proceedings Article | 16 September 2005 Paper

Adaptive cubic convolution interpolation and sequential filtering for color demosaicing of Bayer pattern image sensors

Wonpil Yu

Proceedings Volume 5909, 590915 (2005) https://doi.org/10.1117/12.615852

KEYWORDS: Optical filters, Convolution, Digital filtering, Image filtering, Image quality, Image sensors, Color difference, Imaging systems, Visual system, Digital cameras

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Proceedings Article | 9 December 2004 Paper

Distortion corrections for better character recognition of camera-based document images

YunKoo Chung, DaeGeun Jang, WonPil Yu, SooYoung Chi, KyeKyung Kim, Jung Soh

Proceedings Volume 5578, (2004) https://doi.org/10.1117/12.567034

KEYWORDS: Distortion, Cameras, Image processing, Digital cameras, Optical character recognition, Scanners, Calibration, Image quality, Image enhancement, Feature extraction

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