Title :
A no -reference quality evaluation method for CFA Demosaicking
Author :
Liu, Yi-Nung ; Lin, Yi-Chun ; Chien, Shao-Yi
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Color filter array demosaicking is one of the key components in a image signal processing pipeline. In this paper, a no-reference quality evaluation method is introduced for CFA demosaicking, where the concept of double interpolation is applied. In addition, the double interpolation (DI) scheme can be used to locate the interpolation artifacts which make us uncomfortable. Experimental results show that the DI difference map can provide local quality assessments and the DI PSNR can provide a very good estimation of PSNR without ground truth image as a global quality assessment.
Keywords :
image segmentation; optical arrays; optical filters; CFA demosaicking; PSNR estimation; color filter array demosaicking; double interpolation scheme; global quality assessment; ground truth image; image signal processing pipeline; local quality assessments; noreference quality evaluation method; peak signal to noise ratio; Array signal processing; Interpolation; Measurement; Nonlinear filters; PSNR; Pixel; Quality assessment; Sensor arrays; Signal processing algorithms; Testing;
Conference_Titel :
Consumer Electronics (ICCE), 2010 Digest of Technical Papers International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-4314-7
Electronic_ISBN :
978-1-4244-4316-1
DOI :
10.1109/ICCE.2010.5418700
