| Paper Abstract and Keywords |
| Presentation |
2011-07-25 14:25
An FFT-based block matching algorithm for weighted SSD criteria and its application to NL-means filtering
Hidetake Sasaki, Hitoshi Kiya (Tokyo Metropolitan Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper proposes a novel algorithm for weighted sum of squared differences (SSD)-based block matching algorithm (BMA). One category of fast BMAs is based on the fast Fourier transformation (FFT). In conventional methods of this category, each pixel requires its corresponding search window for weighted SSD computation in application to nonlocal-means (NL-means) filtering. The proposed method allows us to simultaneously compute two weighted SSDs, and the method further reduces the number of FFT operations by sharing a common search window among multiple pixels. Experimental results show that the proposed method is 14 or more times faster than the non-FFT-based BMA in NL-means filtering. It is 1.8 or more times faster even compared to the conventional FFT-based BMA. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
weighted SSD / block matching / denoising / nonlocal-means / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 35, no. 30, ME2011-76, pp. 7-11, July 2011. |
| Paper # |
ME2011-76 |
| Date of Issue |
2011-07-18 (CE, ME) |
| ISSN |
Print edition: ISSN 1342-6893 |
| Download PDF |
|
| Conference Information |
| Committee |
ME CE IEICE-IE |
| Conference Date |
2011-07-25 - 2011-07-26 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Osaka Univ. (Machikaneyama facility) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
ME |
| Conference Code |
2011-07-ME-CE-IE |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
An FFT-based block matching algorithm for weighted SSD criteria and its application to NL-means filtering |
| Sub Title (in English) |
|
| Keyword(1) |
weighted SSD |
| Keyword(2) |
block matching |
| Keyword(3) |
denoising |
| Keyword(4) |
nonlocal-means |
| Keyword(5) |
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| 1st Author's Name |
Hidetake Sasaki |
| 1st Author's Affiliation |
Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
| 2nd Author's Name |
Hitoshi Kiya |
| 2nd Author's Affiliation |
Tokyo Metropolitan University (Tokyo Metropolitan Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2011-07-25 14:25:00 |
| Presentation Time |
25 minutes |
| Registration for |
ME |
| Paper # |
CE2011-23, ME2011-76 |
| Volume (vol) |
vol.35 |
| Number (no) |
no.30 |
| Page |
pp.7-11 |
| #Pages |
5 |
| Date of Issue |
2011-07-18 (CE, ME) |