METHOD FOR 2D AND 3D IMAGES CAPTURING, REPRESENTATION, PROCESSING AND COMPRESSION

摘要

PCT No. PCT/IL96/00033 Sec. 371 Date Jun. 27, 1997 Sec. 102(e) Date Jun. 27, 1997 PCT Filed Jul. 3, 1996 PCT Pub. No. WO97/02521 PCT Pub. Date Jan. 23, 1997A process for producing a compressed representation of 2D and 3D images. The image is represented in a compressed form by approximating regions with slowly changing brightness or color, by a background, formed by low degree polynomials. Fast brightness or color changes are represented by special models, including local models and curvilinear structures. Visual adjacency relations between the models are identified, the background partition represents these adjacency relations, curvilinear structures are approximated by spline functions. The three-dimensional image is represented by producing one or several compressed images of the scene from different positions, in which a depth value is associated to each model. A view of the scene from any prescribed point is produced by a geometric processing of these compressed data.