DocumentCode :
2503068
Title :
Super-resolution using a local matching designed for suppressing errors of reconstructed edges
Author :
Takeshima, Hidenori ; Kaneko, Tetsuya
Author_Institution :
Corp. R&D Center, Toshiba Corp., Kawasaki, Japan
fYear :
2012
fDate :
2-5 Oct. 2012
Firstpage :
566
Lastpage :
567
Abstract :
A novel registration algorithm for multi-frame super-resolution (SR) is proposed. SR requires known LR pixels shifted by non-integer amounts of pixels. Such LR pixels can be acquired from non-target frames using registration. A method suitable for implementing registration in consumer products is the block-matching algorithm (BMA). However, when the BMA is used, in the case of processing a straight edge, it is shown that the arrangement tends to be irregular. It is also shown that the quality of reconstructed images becomes poor when the arrangement of the registered pixels is irregular. The proposed method is based on the BMA but is designed for improving the arrangement of the registered pixels. The experimental results show that (1) the pixels are registered near each position to be reconstructed, and (2) the quality of reconstructed images is improved. To make the proposed method practical for consumer products, the search is performed using a fast block-matching algorithm.
Keywords :
edge detection; image matching; image reconstruction; image registration; image resolution; block-matching algorithm; consumer product; edge reconstruction; error suppression; image reconstruction; local matching; multiframe super-resolution; pixel registration; straight edge processing; Computational efficiency; Consumer products; Estimation; Image edge detection; Image reconstruction; Image resolution; Random access memory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Consumer Electronics (GCCE), 2012 IEEE 1st Global Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4673-1500-5
Type :
conf
DOI :
10.1109/GCCE.2012.6379913
Filename :
6379913
Link To Document :
بازگشت