Perspective effect enhancement for light field refocusing using depth-guided optimization

Chun Zhao; Byeungwoo Jeon

doi:10.1117/12.2667024

25 March 2023 Perspective effect enhancement for light field refocusing using depth-guided optimization

Chun Zhao, Byeungwoo Jeon

Author Affiliations +

Proceedings Volume 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023; 1259205 (2023) https://doi.org/10.1117/12.2667024
Event: International Workshop on Advanced Imaging Technology (IWAIT) 2023, 2023, Jeju, Korea, Republic of

Abstract

Light field (LF) image can improve perspective effect and immersive experience. It also provides new capabilities such as depth estimation, post-capture refocusing, and 3D modelling among which refocusing is potentially very useful in many applications such as smart phone. This paper addresses a novel depth-guided enhancement of light field images to improve depth contrast. The proposed method is formulated as an optimization problem that can consider not only the desired inter-depth contrast constraints of depth map, but also intra-depth luminance intensity contrast and color saturation contrast constraints in each depth layer. Experiment result shows that it outperforms the state-of-the-art methods in its depth contrast and detail preservation in each depth layer. It is observed also that the proposed method can enlarge luminance range by 7~15% and improve color contrast by 3~8%.

Citation Download Citation

Chun Zhao and Byeungwoo Jeon "Perspective effect enhancement for light field refocusing using depth-guided optimization", Proc. SPIE 12592, International Workshop on Advanced Imaging Technology (IWAIT) 2023, 1259205 (25 March 2023); https://doi.org/10.1117/12.2667024

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Image enhancement

Depth maps

Histograms

Color

Image contrast enhancement

Chromium

Lawrencium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years