Real-time lossless compression of mosaic video sequences
Real-Time Imaging - Special issue on multi-dimensional image processing
EURASIP Journal on Applied Signal Processing
ICCS '08 Proceedings of the 8th international conference on Computational Science, Part I
PCA-based spatially adaptive denoising of CFA images for single-sensor digital cameras
IEEE Transactions on Image Processing
Compression of Bayer-pattern video sequences using adjusted chroma subsampling
IEEE Transactions on Circuits and Systems for Video Technology
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Universal intra coding for arbitrary RGB color filter arrays in HEVC
Journal of Visual Communication and Image Representation
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Many consumer digital color cameras use a single light sensitive sensor and a color filter array (CFA) with each pixel element recording intensity information of one color component. The captured data is interpolated into a full color image, which is then compressed in many applications. Carrying out color interpolation before compression introduces redundancy in the data. In this paper we discuss methods and issues involved in the compression of CFA data before full color interpretation. The compression methods described operate on the same number of pixels as the sensor data. To obtain improved image quality, median filtering is applied as post-processing. Furthermore, to assure low complexity, the CFA data is compressed by JPEG. Simulations have demonstrated that substantial improvement in image quality is achievable using these new schemes.