Lighting by Guides: Lighting Parameters Inference from Lighting Guides

• Main Authors: Hsueh-Tsung Kuo, 郭學聰
• Other Authors: Yung-Yu Chuang
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/76886294550364872801

碩士 === 國立臺灣大學 === 資訊網路與多媒體研究所 === 96 === In this thesis, we introduce and present a solution to the lighting-by-guide problem: given the description of a scene and an image as the lighting guide, automatically find a lighting configuration so that the resulted rendering best matches the lighting guide. Our solution framework consists of four main modules, initial guess, optimization, relighting, and difference metric evaluation. Since the resulted problem is a high-dimensional nonlinear optimization problem, it is crucial to have a good initial guess. We propose an efficient and effective algorithm for this task. Experiments show that our system can produce good quality lighting setups. The result is an automatic lighting algorithm which infers the lighting configuration from the lighting guide, greatly alleviating lighting artists'' workload.