This book constitutes the refereed proceedings of the 8th Pacific Rim Conference on Multimedia, PCM 2007, held in Hong Kong, China, in December 2007.

The 73 revised full papers and 21 revised poster presented were carefully reviewed and selected from 247 submissions. The papers are organized in topical session on image classification and retrieval, the AVS china national standard - technology, applications and products, human face and action recognition, H.264 video coding, video analysis and retrieval, media security and DRM, audio, speech and sound processing, digital watermarking, multimedia information systems for biomedical research, media delivery, video communication and systems, video compression and processing, face and 3D model analysis, multimedia applications, image indexing, identification and processing, as well as multimedia processing.