| Paper Abstract and Keywords |
| Presentation |
2021-08-26 09:55
Adaptive Threshold Determination in Predictor Generation for Compression of Sparse Point Cloud
Kohei Matsuzaki, Kei Kawamura (KDDI Research) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Point cloud compression is an essential technique for realizing point cloud applications for practical use. In the case of compressing a sparse point cloud using temporal correlation, compression performance is limited by geometric error between frames. Although this problem can be addressed by applying a point augmentation to the reference frame, the point density changes. This causes a bias in predictor generation based on thresholding of the number of points in the reference frame, resulting reduction the effectiveness of the predictor. In this paper, we propose a threshold determination method that can solve the bias of the predictors even when the point density changes due to the point augmentation. In the proposed method, the threshold value is adaptively determined for each level using the cumulative moving average of the number of points in the node in the octree coding method. Evaluation experiments on dynamically acquired point clouds showed that the proposed method solves the bias of the predictors and improves the compression performance. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
point cloud compression / predictor generation / threshold determination / G-PCC / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 45, no. 22, ME2021-68, pp. 37-42, Aug. 2021. |
| Paper # |
ME2021-68 |
| Date of Issue |
2021-08-18 (ME) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IEICE-LOIS IEICE-EMM IEICE-IE IEE-CMN ME IPSJ-AVM |
| Conference Date |
2021-08-25 - 2021-08-26 |
| 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 |
ME |
| Conference Code |
2021-08-LOIS-EMM-IE-CMN-ME-AVM |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Adaptive Threshold Determination in Predictor Generation for Compression of Sparse Point Cloud |
| Sub Title (in English) |
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| Keyword(1) |
point cloud compression |
| Keyword(2) |
predictor generation |
| Keyword(3) |
threshold determination |
| Keyword(4) |
G-PCC |
| Keyword(5) |
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| 1st Author's Name |
Kohei Matsuzaki |
| 1st Author's Affiliation |
KDDI Research, Inc. (KDDI Research) |
| 2nd Author's Name |
Kei Kawamura |
| 2nd Author's Affiliation |
KDDI Research, Inc. (KDDI Research) |
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| Speaker |
Author-1 |
| Date Time |
2021-08-26 09:55:00 |
| Presentation Time |
25 minutes |
| Registration for |
ME |
| Paper # |
ME2021-68 |
| Volume (vol) |
vol.45 |
| Number (no) |
no.22 |
| Page |
pp.37-42 |
| #Pages |
6 |
| Date of Issue |
2021-08-18 (ME) |