Description:The 4th International Conference on Image Analysis and Recognition was held in Montreal, Canada, in August 2007. The conference attracted leading minds in the field of imaging who came to present their findings and discuss new developments and applications in the field. This book constitutes the refereed proceedings of the conference.Seventy-one full papers are presented along with forty-four poster papers. All the papers were carefully selected and reviewed to ensure that each one makes an important contribution to the science.Papers are organized into topical sections covering image restoration and enhancement, image and video processing and analysis, image segmentation, computer vision, pattern recognition for image analysis, shape and matching, motion analysis, tracking, image retrieval and indexing, image and video coding and encryption, biometrics, biomedical image analysis, and applications.