| Presentation | 2001/11/8 Clustering and Estimation of 2-D Motion Fields in Ultrasonic Images Based on Regression Characteristics with Respiratory Signal Takuya KITAZAWA, Norio TAGAWA, Akihiro MINAGAWA, Tadashi MORIYA, Shin-ichi MINOHARA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We estimated instantaneous 2-D motion field in ultrasonic images of internal organs. We have proposed an algorithm based on the correlation between respiration and the motion of internal organs, in which, motion is represented as a regression model with respect to the respiratory signal and independently estimated in each pixel. In this paper, it is assumed that motion has a multi-modal distribution, thereby reducing the number of unknown parameters, and hence improving the accuracy of the motion estimated. We constructed a computationally stable estimation algorithm based on this assumption, and verified the applicability of the proposed technique through experiments on simulated and real image data. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ultrasonic images / respiration / optical flow / ML estimation / EM algorithm / Gaussian mixture model |
| Paper # | PRMU2001-123,HIP2001-26,MVE2001-85 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2001/11/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Human Information Processing (HIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Clustering and Estimation of 2-D Motion Fields in Ultrasonic Images Based on Regression Characteristics with Respiratory Signal |
| Sub Title (in English) | |
| Keyword(1) | ultrasonic images |
| Keyword(2) | respiration |
| Keyword(3) | optical flow |
| Keyword(4) | ML estimation |
| Keyword(5) | EM algorithm |
| Keyword(6) | Gaussian mixture model |
| 1st Author's Name | Takuya KITAZAWA |
| 1st Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University() |
| 2nd Author's Name | Norio TAGAWA |
| 2nd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 3rd Author's Name | Akihiro MINAGAWA |
| 3rd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 4th Author's Name | Tadashi MORIYA |
| 4th Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 5th Author's Name | Shin-ichi MINOHARA |
| 5th Author's Affiliation | National Institute of Radiological Science |
| Date | 2001/11/8 |
| Paper # | PRMU2001-123,HIP2001-26,MVE2001-85 |
| Volume (vol) | vol.101 |
| Number (no) | 423 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |