Title :
A classification approach to color demosaicking
Author :
Kwan, Cindy ; Wu, Xiaolin
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
Color demosaicking for CCD cameras is a task of estimating missing data. Based on different hypotheses on the image structures multiple estimates can be made. Choosing the best estimate becomes a statistical decision problem. We propose an optimal classification technique based on Fisher´s discriminant to solve this decision problem. The new technique is more robust and obtains superior visual quality of demosaicked images than existing methods.
Keywords :
CCD image sensors; charge-coupled devices; decision theory; feature extraction; image classification; image colour analysis; image segmentation; visual perception; CCD camera; Fishers discriminant; charged coupled device; color demosaicking; image demosaicking; image structure; missing data estimation; optimal classification technique; statistical decision problem; superior visual quality; Charge coupled devices; Charge-coupled image sensors; Color; Decision making; Digital cameras; Digital filters; Filtering; Frequency estimation; Interpolation; Laplace equations;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1421588
