Evaluation of JPEG XT integer coding mechanisms

다국어 초록 (Multilingual Abstract)

JPEG XT has been designed to a high dynamic range (HDR) image compression which can be backward compatible with the conventional JPEG image coding standard. It consists of two layers: the base and the extension layer. The base layer contains a tone-mapped version of the HDR image and the extension layer contains residual information to reconstruct the HDR image on the basis the base layer. However, most studies about JPEG XT did not take into an account all features that can affect the performance while they have focused on the tone mapping operation and comparison of the coding performance between different profiles. In this study, we conducted experiments to compare two different HDR encoding mechanisms: open loop and closed loop, which is done during the prediction of the HDR information. Experimental results show that the closed loop exhibits better and relatively stable HDR-VDP-2 performance for various tone mapping methods.

목차 (Table of Contents)

• Abstract
• Ⅰ. Introduction
• Ⅱ. Related Work
• Ⅲ. Experiment Description
• Ⅳ. Result Analysis
• Ⅴ. Conclusions
• References