Digital video processing
DSPs for image and video processing
Signal Processing
Color Processing in Digital Cameras
IEEE Micro
A new digital signal processor for progressive scan CCD
IEEE Transactions on Consumer Electronics
IEEE Transactions on Consumer Electronics
Demosaicing: image reconstruction from color CCD samples
IEEE Transactions on Image Processing
Effective color interpolation in CCD color filter arrays using signal correlation
IEEE Transactions on Circuits and Systems for Video Technology
Proceedings of the 2007 IEEE/ACM international conference on Computer-aided design
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Pixel cross-talk compensation for CMOS image sensors
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Use of wavelet for image processing in smart cameras with low hardware resources
Journal of Systems Architecture: the EUROMICRO Journal
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This paper presents a color interpolation technique for a single-chip charge-coupled device with color-filter-array format. We propose edge-direction weighting and the local gain approach to reconstruct missing color components. Simulations show that the proposed method can achieve better quality-complexity tradeoff than other algorithms. For real-time implementation, a cost-effective architecture consisting of a pipeline schedule is designed based on our new algorithm. With the time-sharing method, the VLSI architecture can interpolate various colors using a common computational kernel, reducing the circuit complexity. The prototype of the color interpolation processor has been successfully verified with a field-programmable gate array device. The chip only uses about 10K gates and two line buffers.