Abstract
The dichromatic reflection model has been popularly exploited for computer vison tasks, such as color constancy and highlight removal. However, dichromatic model estimation is an severely ill-posed problem. Thus, several assumptions have been commonly made to estimate the dichromatic model, such as white-light (highlight removal) and the existence of highlight regions (color constancy). In this paper, we propose a spatio-temporal deep network to estimate the dichromatic parameters under AC light sources. The minute illumination variations can be captured with high-speed camera. The proposed network is composed of two sub-network branches. From high-speed video frames, each branch generates chromaticity and coefficient matrices, which correspond to the dichromatic image model. These two separate branches are jointly learned by spatio-temporal regularization. As far as we know, this is the first work that aims to estimate all dichromatic parameters in computer vision. To validate the model estimation accuracy, it is applied to color constancy and highlight removal. Both experimental results show that the dichromatic model can be estimated accurately via the proposed deep network.
Original language | English |
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Article number | 9508197 |
Pages (from-to) | 7064-7073 |
Number of pages | 10 |
Journal | IEEE Transactions on Image Processing |
Volume | 30 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Bibliographical note
Funding Information:Manuscript received August 31, 2020; revised June 17, 2021; accepted July 13, 2021. Date of publication August 5, 2021; date of current version August 11, 2021. This work was supported in part by Samsung Electronics Company Ltd., under Grant Q1826052 and in part by the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MSIT) under Grant 2019R1A2C1005834. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Damon M. Chandler. (Corresponding author: Jong-Ok Kim.) Jun-Sang Yoo is with the Computer Vision Laboratory, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 16678, South Korea (e-mail: [email protected]).
Publisher Copyright:
© 1992-2012 IEEE.
Keywords
- AC light
- Dichromatic reflection model
- color constancy
- highlight removal
ASJC Scopus subject areas
- Software
- Computer Graphics and Computer-Aided Design