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Paper Abstract and Keywords
Presentation 2023-05-18 14:00
Creation of Teacher Optical Flow specialized for Video Frame Interpolation
Riku Miyata, Yuki Kondo, Norimichi Ukita (TTI) PRMU2023-3
Abstract (in Japanese) (See Japanese page) 
(in English) Video frame interpolation is a technique for generating intermediate frames from two consecutive video frames. In this study, we aim to achieve high-quality video frame interpolation using a learning strategy called knowledge distillation. Knowledge distillation is a method to promote the transfer of knowledge from a teacher model to a student model. The conventional method used in this study is RIFE, which demonstrates high performance in video frame interpolation tasks.

Unlike RIFE, this study proposes to use a larger teacher model. Specifically, we adopt the FlowFormer model, which has State-Of-The-Art (SOTA) performance in optical flow estimation, as the teacher model. We then expect to create a more accurate optical flow by passing the obtained optical flow through U-Net multiple times. In the experiments, we first create a teacher model and estimate the optical flow. Then, we use the estimated optical flow from the teacher model as the pseudo Ground Truth (GT) and train the student model.

As a result of the experiments, we compared the accuracy of the proposed method and RIFE, but contrary to our expectations, the accuracy of the proposed method was lower than that of RIFE. This indicates that simply enlarging the teacher model does not necessarily lead to an improvement in the student model's accuracy. From these results, it has become clear that further ingenuity is required in the video frame interpolation task.
Keyword (in Japanese) (See Japanese page) 
(in English) Video Frame Interpolation / knowledge distillation / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 30, PRMU2023-3, pp. 12-15, May 2023.
Paper # PRMU2023-3 
Date of Issue 2023-05-11 (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 PRMU2023-3

Conference Information
Committee PRMU IPSJ-CVIM  
Conference Date 2023-05-18 - 2023-05-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2023-05-PRMU-CVIM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Creation of Teacher Optical Flow specialized for Video Frame Interpolation 
Sub Title (in English)  
Keyword(1) Video Frame Interpolation  
Keyword(2) knowledge distillation  
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1st Author's Name Riku Miyata  
1st Author's Affiliation Toyota Technological Institute (TTI)
2nd Author's Name Yuki Kondo  
2nd Author's Affiliation Toyota Technological Institute (TTI)
3rd Author's Name Norimichi Ukita  
3rd Author's Affiliation Toyota Technological Institute (TTI)
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Speaker Author-1 
Date Time 2023-05-18 14:00:00 
Presentation Time 15 minutes 
Registration for PRMU 
Paper # PRMU2023-3 
Volume (vol) vol.123 
Number (no) no.30 
Page pp.12-15 
#Pages 4 
Date of Issue 2023-05-11 (PRMU) 

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