| Paper Abstract and Keywords |
| Presentation |
2004-12-09 10:20
Projective transformation to align mulit-camera images for efficient FTV compression
Kenji Yamamoto, Tomohiro Yendo, Toshiaki Fujii, Masayuki Tanimoto (Nagoya Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper introduces a preprocessing method for efficient compression of multi-camera images in FTV (Free viewpoint TeleVision). In every multi-camera system, it is difficult to precisely align cameras at the desired place. In this paper, we propose a preprocessing method that transforms the captured multi-camera images by projective transformation matrices to compensate for this misalignment. This transformation increases the efficiency of image compression because multi-camera images become more correlative. Furthermore, we propose a method for finding the projective transformation matrices automatically in consideration of the epipolar geometry. Experimental results show that PSNR gains up to 2.7 dB in comparison with the compression without any processing when MPEG-2 is used in the condition ranging from 1.6 to 3.0 Mbps. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
FTV (Free viewpoint TeleVision) / multi-camera / projective transformation / epipolar geometry / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 493, CS2004-98, pp. 9-14, Dec. 2004. |
| Paper # |
CS2004-98 |
| Date of Issue |
2004-12-02 (CS, IE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
CS IE |
| Conference Date |
2004-12-09 - 2004-12-10 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagoya University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Image coding, streaming technologies for real-time communications, etc. |
| Paper Information |
| Registration To |
CS |
| Conference Code |
2004-12-CS-IE |
| Language |
English (Japanese title is available) |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Projective transformation to align mulit-camera images for efficient FTV compression |
| Sub Title (in English) |
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| Keyword(1) |
FTV (Free viewpoint TeleVision) |
| Keyword(2) |
multi-camera |
| Keyword(3) |
projective transformation |
| Keyword(4) |
epipolar geometry |
| Keyword(5) |
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| 1st Author's Name |
Kenji Yamamoto |
| 1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 2nd Author's Name |
Tomohiro Yendo |
| 2nd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 3rd Author's Name |
Toshiaki Fujii |
| 3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 4th Author's Name |
Masayuki Tanimoto |
| 4th Author's Affiliation |
Nagoya University (Nagoya Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2004-12-09 10:20:00 |
| Presentation Time |
20 minutes |
| Registration for |
CS |
| Paper # |
CS2004-98, IE2004-93 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.493(CS), no.495(IE) |
| Page |
pp.9-14 |
| #Pages |
6 |
| Date of Issue |
2004-12-02 (CS, IE) |