| Paper Abstract and Keywords |
| Presentation |
2024-06-05 10:10
Utilizing 3D CG-based Reverse Projection Photogrammetry for Gait-based Verification Analysis
Daisuke Imoto, Masato Asano, Wataru Sakurai, Masakatsu Honma, Kenji Kurosawa (NRIPS) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
One-by-one gait-based biometric person verification is increasingly used in the forensic science domain, but one of the problems is necessity of labor-intensive on-site procedures for estimating viewing direction of camera with respect to the pedestrian position/orientation. In this paper, we propose a method that utilizes 3D CG-based reverse projection photogrammetry to estimate the viewing direction information required for that forensic gait-based verification analysis. Specifically, based on the 3D model data reconstructed by using SfM/Photogrammetry technology, first, the pedestrian-oriented 3D coordinate system is decided as the world coordinate system, and second, the camera parameters with respect to that world coordinate system, i.e. the viewing direction of the camera with respect to the pedestrian, are estimated. As a result of verification in a laboratory environment, the proposed method was found to be as accurate as the conventional method which involves elaborate on-site procedures. Although the proposed method requires more in-silico procedures than the conventional method, it has the advantage of abbreviation of a part of on-site elaborate procedure and not having to assume the flatness of the road surface. A further advantage is that it is visually easy to understand based on image reconstruction by reverse projection photogrammetry. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Reverse Projection Photogrammetry / 3D CG / Gait Analysis / Silhouette / Viewing Direction / Camera Calibration / / |
| Reference Info. |
ITE Tech. Rep., vol. 48, pp. 1-4, June 2024. |
| Paper # |
|
| Date of Issue |
2024-05-29 (AIT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
IIEEJ AIT |
| Conference Date |
2024-06-05 - 2024-06-05 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tokyo Information Design Professional University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
IIEEJ |
| Conference Code |
2024-06-IIEEJ-AIT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Utilizing 3D CG-based Reverse Projection Photogrammetry for Gait-based Verification Analysis |
| Sub Title (in English) |
|
| Keyword(1) |
Reverse Projection Photogrammetry |
| Keyword(2) |
3D CG |
| Keyword(3) |
Gait Analysis |
| Keyword(4) |
Silhouette |
| Keyword(5) |
Viewing Direction |
| Keyword(6) |
Camera Calibration |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Daisuke Imoto |
| 1st Author's Affiliation |
Nartional Research Institute of Police Science (NRIPS) |
| 2nd Author's Name |
Masato Asano |
| 2nd Author's Affiliation |
Nartional Research Institute of Police Science (NRIPS) |
| 3rd Author's Name |
Wataru Sakurai |
| 3rd Author's Affiliation |
Nartional Research Institute of Police Science (NRIPS) |
| 4th Author's Name |
Masakatsu Honma |
| 4th Author's Affiliation |
Nartional Research Institute of Police Science (NRIPS) |
| 5th Author's Name |
Kenji Kurosawa |
| 5th Author's Affiliation |
Nartional Research Institute of Police Science (NRIPS) |
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| Speaker |
Author-1 |
| Date Time |
2024-06-05 10:10:00 |
| Presentation Time |
20 minutes |
| Registration for |
IIEEJ |
| Paper # |
AIT2024-142 |
| Volume (vol) |
vol.48 |
| Number (no) |
no.16 |
| Page |
pp.1-4 |
| #Pages |
4 |
| Date of Issue |
2024-05-29 (AIT) |