| Paper Abstract and Keywords |
| Presentation |
2007-12-13 16:35
A Study on Numerical Computation of Pseudo TV-norm and its Application to Image Segmentation
Kei Kawamura, Daisuke Ishii, Hiroshi Watanabe (Waseda Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
An image decomposition problem using a Total Variation norm is the object of this paper. In a conventional method, this problem was formulated by the dual problems. Dual variables in it are calculated by an iteration of the convex projection method. However, a role of each variable is implicit. Then, it is difficult to apply to another field. We propose a comprehensible discretization of the Total Variation and a differential manipulation as the operation. A direct calculation procedure of the structural image by the steepest descent method is described. Two comparisons of waveforms and similarities are shown. These experiments clarify that the proposed method maintains the performance of the conventional method with the explicit role of each variable. An example of application to the image segmentation is demonstrated. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Total Variation / Steepest Descent Method / Image Segmentation / Image Coding / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 107, pp. 57-62, Dec. 2007. |
| Paper # |
|
| Date of Issue |
2007-12-06 (CS, IE) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
| Download PDF |
|
| Conference Information |
| Committee |
IE IPSJ-AVM CS ITE-BCT |
| Conference Date |
2007-12-13 - 2007-12-14 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagoya Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Image coding, Communications and Stream Technologies, etc. |
| Paper Information |
| Registration To |
IPSJ-AVM |
| Conference Code |
2007-12-IE-IPSJ-AVM-CS-ITE-BCT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Study on Numerical Computation of Pseudo TV-norm and its Application to Image Segmentation |
| Sub Title (in English) |
|
| Keyword(1) |
Total Variation |
| Keyword(2) |
Steepest Descent Method |
| Keyword(3) |
Image Segmentation |
| Keyword(4) |
Image Coding |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Kei Kawamura |
| 1st Author's Affiliation |
Waseda University (Waseda Univ.) |
| 2nd Author's Name |
Daisuke Ishii |
| 2nd Author's Affiliation |
Waseda University (Waseda Univ.) |
| 3rd Author's Name |
Hiroshi Watanabe |
| 3rd Author's Affiliation |
Waseda University (Waseda Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2007-12-13 16:35:00 |
| Presentation Time |
25 minutes |
| Registration for |
IPSJ-AVM |
| Paper # |
CS2007-39, IE2007-122 |
| Volume (vol) |
vol.107 |
| Number (no) |
no.379(CS), no.380(IE) |
| Page |
pp.57-62 |
| #Pages |
6 |
| Date of Issue |
2007-12-06 (CS, IE) |