Paper Abstract and Keywords |
Presentation |
2021-12-16 10:45
Shadow Reduction Based on LiDAR intensity Shogo Sato, Yasuhiro Yao, Shingo Ando, Jun Shimamura (NTT) PRMU2021-25 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In recent years, there has been a growing demand
for urban digitization using cameras and light detection and
ranging (LiDAR). LiDAR is ideal for urban measurement independent
from observed conditions. Shadows are a condition
that affects measurement the most. Therefore, shadow detection
and reduction technology is essential. In this study, we propose
shadow detection and reduction utilizing the LiDAR intensity
that depends on the surface properties of objects but not on
irradiation from other light sources. Unlike conventional LiDARintensity-
aided shadow detection methods, our method embeds
the un-correlation between luminance and LiDAR intensity in
each position into the optimization. In our method, LiDAR
intensity is smoothed by a variational method to denoise and
densify. Then, the energy, which is defined by the un-correlation
between luminance and smoothed intensity in each position, is
minimized by graph-cut segmentation to detect shadows. We
also propose a shadow-reduction method based on the shadow
boundary. In evaluations on KITTI and Waymo datasets, our
shadow-detection method outperformed the previous methods in
terms of multiple measurements. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
LiDAR / Shadow detection / Shadow redcution / shadow / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 304, PRMU2021-25, pp. 7-12, Dec. 2021. |
Paper # |
PRMU2021-25 |
Date of Issue |
2021-12-09 (PRMU) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
PRMU2021-25 |
Conference Information |
Committee |
PRMU |
Conference Date |
2021-12-16 - 2021-12-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
|
Paper Information |
Registration To |
PRMU |
Conference Code |
2021-12-PRMU |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Shadow Reduction Based on LiDAR intensity |
Sub Title (in English) |
|
Keyword(1) |
LiDAR |
Keyword(2) |
Shadow detection |
Keyword(3) |
Shadow redcution |
Keyword(4) |
shadow |
Keyword(5) |
|
Keyword(6) |
|
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Shogo Sato |
1st Author's Affiliation |
NTT Human Informatics Laboratories (NTT) |
2nd Author's Name |
Yasuhiro Yao |
2nd Author's Affiliation |
NTT Human Informatics Laboratories (NTT) |
3rd Author's Name |
Shingo Ando |
3rd Author's Affiliation |
NTT Laboratories (NTT) |
4th Author's Name |
Jun Shimamura |
4th Author's Affiliation |
NTT Human Informatics Laboratories (NTT) |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2021-12-16 10:45:00 |
Presentation Time |
15 minutes |
Registration for |
PRMU |
Paper # |
PRMU2021-25 |
Volume (vol) |
vol.121 |
Number (no) |
no.304 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2021-12-09 (PRMU) |
|