<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Criminisi, A</style></author><author><style face="normal" font="default" size="100%">Blake, A</style></author><author><style face="normal" font="default" size="100%">Carsten Rother</style></author><author><style face="normal" font="default" size="100%">Shotton, J</style></author><author><style face="normal" font="default" size="100%">Torr, P. H.S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficient dense stereo with occlusions for new view-synthesis by four-state dynamic programming</style></title><secondary-title><style face="normal" font="default" size="100%">International Journal of Computer Vision</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Dense stereo</style></keyword><keyword><style  face="normal" font="default" size="100%">Gaze correction</style></keyword><keyword><style  face="normal" font="default" size="100%">Image-based rendering</style></keyword><keyword><style  face="normal" font="default" size="100%">Video-conferencing</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><number><style face="normal" font="default" size="100%">1</style></number><publisher><style face="normal" font="default" size="100%">Kluwer Academic Publishers</style></publisher><volume><style face="normal" font="default" size="100%">71</style></volume><pages><style face="normal" font="default" size="100%">89–110</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A new algorithm is proposed for efficient stereo and novel view synthesis. Given the video streams acquired by two synchronized cameras the proposed algorithm synthesises images from a virtual camera in arbitrary position near the physical cameras. The new technique is based on an improved, dynamic-programming, stereo algorithm for efficient novel view generation. The two main contributions of this paper are: (i) a new four state matching graph for dense stereo dynamic programming, that supports accurate occlusion labelling; (ii) a compact geometric derivation for novel view synthesis by direct projection of the minimum cost surface. Furthermore, the paper presents an algorithm for the temporal maintenance of a background model to enhance the rendering of occlusions and reduce temporal artefacts (flicker); and a cost aggregation algorithm that acts directly in the three-dimensional matching cost space. The proposed algorithm has been designed to work with input images with large disparity range, a common practical situation. The enhanced occlusion handling capabilities of the new dynamic programming algorithm are evaluated against those of the most powerful state-of-the-art dynamic programming and graph-cut techniques. Four-state DP is also evaluated against the disparity-based Middlebury error metrics and its performance found to be amongst the best of the efficient algorithms. A number of examples demonstrate the robustness of four-state DP to artefacts in stereo video streams. This includes demonstrations of cyclopean view synthesis in extended conversational sequences, synthesis from a freely translating virtual camera and, finally, basic 3D scene editing. © 2006 Springer Science + Business Media, LLC.</style></abstract></record></records></xml>