國立台灣大學電機工程學系 教授
國立台灣大學電信工程學研究所 教授
國立台灣大學資訊網路與多媒體研究所 教授
Professor, Department of Electrical Engineering, National Taiwan University
Professor, Graduate Institute of Communication Engineering
Professor, Graduate Institute of Networking and Multimedia
主要研究領域:
影音壓縮、信號分析、多媒體傳輸系統、媒體資料流
Major Research Areas:
video audio compression, signal analysis, multimedia communications, media streaming
研究領域摘要:
開發多媒體信號處理技術及多媒體傳輸系統,以支援數位攝影機、數位電視、數位家庭、資料檢索、P2P IPTV及社群網路服務等應用。
在音樂信號處理方面,研究內容包括音樂情緒辨認,解決音樂情緒之主觀性及模糊性問題。在視訊壓縮方面,研究內容包括多模視訊壓縮硬體架構設計、H.264與AVS之優化、視訊轉換編碼、位元率控制及R-D優化等課題。在影像處理方面,研究內容包括光場擷像、數位防手震、LCD影像品質優化、色彩內插、自動白平衡、自動聚焦、滾動快門等。在多媒體傳輸系統設計方面,研究內容包括數位權利管理、P2P媒體流傳輸、complexity-aware live streaming、媒體流播放速率控制、電力線傳輸視訊及無線影像傳輸等。
Research Summary:
We work on a broad range of topics related to multimedia signal processing, multimedia communications, and applications to digital camera, digital camcorder, digital home, multimeida indexing and retrieval, P2P IPTV, and social network services. In music signal processing, our work is primarily focused on music emotion recognition, attempting to tackle the subjective and fuzzy issues of music emotion recognition. In video coding, our reseach involes the architecture design of video codec for supporting multiple video coding standards, the optimization of H.264 and AVS algorithms, transcoding, rate control, and rate-distortion optimization. In image processing, our research topics include light flied acquisition, digital image stabilization, image quality improvement for LCD displays, color interpolation, auto white balance, and compensation of rolling shutter effect. In multimedia communication system design, we target the development of technologies for digital rights management, P2P content delivery, complexity-aware live streaming, adaptive media playout, and video streamoing over power line and wwireless netowrks.