| Presentation | 2006-12-14 Super-resolution reconstruction using randomly subpixel shifted image sequence by iterative back-projection Hiroyuki MISAIZU, Minoru INAMURA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Super-resolution (SR) reconstruction is the method of restoring one high resolution image from two or more low resolution images, and various methods are proposed. In the SR reconstruction method, iterative back-projection (IBP) currently used for reconstruction of an X ray CT image has comparatively simple algorithm, and has a sufficient performance. Conventionally, when resolution is raised N times by the IBP method, observation images of N×N sheets with a 1/N-pixel position shift in a horizontal and a vertical direction are needed. The actual observation images may have the uncontrollable position shift by blurring, and number of sheets may also be under N×N. In this paper, the method of solving the conventional problem is proposed by preliminary interpolation about IBP SR reconstruction using observation images that have an insufficient number and randomly position shift. By our proposed method, conventional SR reconstruction using IBP algorism become possible by having arrangement to the high resolution space of observation images, rearrangement to a discrete point of a random position shift, 2-dimensional interpolation to lack of discrete points, and re-creation of low resolution images. The results by our proposed method show that quality of image comparable as the case where there are all the observation images are obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Super-resolution / Reconstruction / Iterative back-projection / Interpolation |
| Paper # | CS2006-52,IE2006-120 |
| Date of Issue |
| Conference Information | |
| Committee | CS |
|---|---|
| Conference Date | 2006/12/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Communication Systems (CS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Super-resolution reconstruction using randomly subpixel shifted image sequence by iterative back-projection |
| Sub Title (in English) | |
| Keyword(1) | Super-resolution |
| Keyword(2) | Reconstruction |
| Keyword(3) | Iterative back-projection |
| Keyword(4) | Interpolation |
| 1st Author's Name | Hiroyuki MISAIZU |
| 1st Author's Affiliation | R&D Center, Tokyo Electric Power Company() |
| 2nd Author's Name | Minoru INAMURA |
| 2nd Author's Affiliation | Faculty of Engineering, Gunma University |
| Date | 2006-12-14 |
| Paper # | CS2006-52,IE2006-120 |
| Volume (vol) | vol.106 |
| Number (no) | 421 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |