| Paper Abstract and Keywords |
| Presentation |
2020-12-17 11:55
Joint Inter-device Matching and Temporal Alignment between Camera and Wearable Sensors using 3D Motion Correlation
Hiroyuki Ishihara, Shiro Kumano, Takayuki Nakachi (NTT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this paper, we propose a method to estimate the correspondence between a person’s ID and a device ID of a person, and the synchronization between devices based on motion correlation. The challenge is to compensate for the gravitational acceleration component mixed in the acceleration signal of the wearable device. To tackle this problem, the proposed method compensates for the direction of gravitational acceleration by estimating the direction of gravitational acceleration from the motion information of camera images and wearable devices only. Furthermore, from the viewpoint of privacy protection, we propose a method of identifying and synchronizing a person and synchronizing the time in the secret region using random unitary transformation, which is one of the secret operation methods. The evaluation using real data confirms that compensation of the gravity component improves the estimation accuracy and that the random unitary transformation has no effect on the estimation accuracy. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
person-device matching / time synchronization / motion correlation / gravity direction estimation / random unitary transform / / / |
| Reference Info. |
IEICE Tech. Rep. |
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| Conference Information |
| Committee |
HCGSYMPO |
| Conference Date |
2020-12-15 - 2020-12-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Online |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
HCGSYMPO |
| Conference Code |
2020-12-HCGSYMPO |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Joint Inter-device Matching and Temporal Alignment between Camera and Wearable Sensors using 3D Motion Correlation |
| Sub Title (in English) |
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| Keyword(1) |
person-device matching |
| Keyword(2) |
time synchronization |
| Keyword(3) |
motion correlation |
| Keyword(4) |
gravity direction estimation |
| Keyword(5) |
random unitary transform |
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| 1st Author's Name |
Hiroyuki Ishihara |
| 1st Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
| 2nd Author's Name |
Shiro Kumano |
| 2nd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
| 3rd Author's Name |
Takayuki Nakachi |
| 3rd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker |
Author-1 |
| Date Time |
2020-12-17 11:55:00 |
| Presentation Time |
15 minutes |
| Registration for |
HCGSYMPO |
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vol. |
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