This book constitutes the thoroughly refereed post-proceedings of the First International Workshop on Complex Motion, IWCM 2004, held in Schloss Reisensburg, GA1/4nzburg, Germany, in October 2004.

The 17 full papers presented are fully revised to incorporate reviewers' comments and discussions at the workshop. The topics of presentations were optical flow, local motion estimation for image signals affected by strong disturbances, structure from motion, multicamera flow analysis, dynamic stereo, fluid motion analysis, furthermore the estimation of multiple motions, motion tracking, and many other areas where complex visual motion patterns have to be evaluated.

The 2nd International Workshop on Statistical Methods in Video Processing, SMVP 2004, was held in Prague, Czech Republic, as an associated workshop of ECCV 2004, the 8th European Conference on Computer Vision. A total of 30 papers were submitted to the workshop. Of these, 17 papers were accepted for presentation and included in these proceedings, following a double-blind review process. The workshop had 42 registered participants. The focus of the meeting was on recent progress in the application of - vanced statistical methods to solve computer vision tasks. The one-day scienti?c program covered areas of high interest in vision research, such as dense rec- struction of 3D scenes, multibody motion segmentation, 3D shape inference, errors-in-variables estimation, probabilistic tracking, information fusion, optical ?owcomputation, learningfornonstationaryvideodata, noveltydetectionin- namic backgrounds, background modeling, grouping using feature uncertainty, and crowd segmentation from video. We wish to thank the authors of all submitted papers for their interest in the workshop.Wealsowishtothankthemembersofourprogramcommitteeandthe external reviewers for their commitment of time and e?ort in providing valuable recommendations for each submission. We are thankful to Vaclav Hlavac, the General Chair of ECCV 2004, and to Radim Sara, for the local organization of the workshop and registration management. We hope you will ?nd these proceedings both inspiring and of high scienti?c qualit