IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2022-01-24 11:10
Efficient dense interpolation of 4D light fields obtained by sparse viewpoints based on depth estimation
Hidemichi Yoshino (Tokyo Univ. of Science/NII), Kazuya Kodama (NII), Takayuki Hamamoto (Tokyo Univ. of Science) IE2021-27
Abstract (in Japanese) (See Japanese page) 
(in English) In order to easily enjoy immersive 3D visual environment reproducing light fields, inexpensive multi-view imaging systems are required.We have proposed a method for fast interpolation of sparse multi-view images by using parallel processing on GPGPUs, where dense light fields can be obtained without massive camera arrays. Actually, disparity estimation among multi-view images by plane-sweeping and simple epipolar plane image (EPI) synthesis allow us to reconstruct dense light fields in real time based on GPU-based view interpolation that flexibly works for various 3D scenes. In this paper, its implementation on GPGPUs is first described in detail, and then we discuss improvement of the previous method to achieve higher efficiency while avoiding degradation of reconstructed light fields. For EPI interpolation based on estimated disparity of sparse multi-view images, instead of the conventional analysis by simple pixel correspondence, we integrate pixel values on certain regions of the EPI by weighted summation using their consistency of disparity. Regardless of its computational cost, recent Tensor Cores enable us to
expect significant speed-up of the novel EPI interpolation unlike exhaustive searches for pixel correspondence. Experimental results show that our novel view interpolation using weighted summation robustly obtains sufficient quality of reconstructed dense light fields.
Keyword (in Japanese) (See Japanese page) 
(in English) light field / interpolation / multi-view / parallel processing / GPGPU / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 346, IE2021-27, pp. 1-4, Jan. 2022.
Paper # IE2021-27 
Date of Issue 2022-01-17 (IE) 
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 IE2021-27

Conference Information
Committee IE  
Conference Date 2022-01-24 - 2022-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) National Institute of Informatics 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing, Image Coding, etc. 
Paper Information
Registration To IE 
Conference Code 2022-01-IE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Efficient dense interpolation of 4D light fields obtained by sparse viewpoints based on depth estimation 
Sub Title (in English)  
Keyword(1) light field  
Keyword(2) interpolation  
Keyword(3) multi-view  
Keyword(4) parallel processing  
Keyword(5) GPGPU  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hidemichi Yoshino  
1st Author's Affiliation Tokyo University of Science/National Institute of Informatics (Tokyo Univ. of Science/NII)
2nd Author's Name Kazuya Kodama  
2nd Author's Affiliation National Institute of Informatics (NII)
3rd Author's Name Takayuki Hamamoto  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
4th Author's Name  
4th Author's Affiliation ()
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 ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2022-01-24 11:10:00 
Presentation Time 25 minutes 
Registration for IE 
Paper # IE2021-27 
Volume (vol) vol.121 
Number (no) no.346 
Page pp.1-4 
#Pages 4 
Date of Issue 2022-01-17 (IE) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan