Restoration of hot pixels in digital imagers using lossless approximation techniques

O. Hadar; A. Shleifer; E. Cohen; Y. Dotan

doi:10.1117/12.2186101

22 September 2015 Restoration of hot pixels in digital imagers using lossless approximation techniques

O. Hadar, A. Shleifer, E. Cohen, Y. Dotan

Proceedings Volume 9599, Applications of Digital Image Processing XXXVIII; 959931 (2015) https://doi.org/10.1117/12.2186101
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

During the last twenty years, digital imagers have spread into industrial and everyday devices, such as satellites, security cameras, cell phones, laptops and more. “Hot pixels” are the main defects in remote digital cameras. In this paper we prove an improvement of existing restoration methods that use (solely or as an auxiliary tool) some average of the surrounding single pixel, such as the method of the Chapman-Koren study ^1,2. The proposed method uses the CALIC algorithm and adapts it to a full use of the surrounding pixels.

Citation Download Citation

O. Hadar, A. Shleifer, E. Cohen, and Y. Dotan "Restoration of hot pixels in digital imagers using lossless approximation techniques", Proc. SPIE 9599, Applications of Digital Image Processing XXXVIII, 959931 (22 September 2015); https://doi.org/10.1117/12.2186101

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