Active blobs: region-based, deformable appearance models
Computer Vision and Image Understanding - Special issue on nonrigid image registration
A Low Power Architecture for HASM Motion Tracking
Journal of VLSI Signal Processing Systems
Generating segmented quality meshes from images
Journal of Mathematical Imaging and Vision
Content adaptive mesh representation of images using binary space partitions
IEEE Transactions on Image Processing
Fast depth map compression and meshing with compressed tritree
ACCV'09 Proceedings of the 9th Asian conference on Computer Vision - Volume Part II
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For pt.I see ibid., vol.6, no.6, p.636-46 (1996). This paper explores the use of the deformable mesh structure for motion/shape analysis and synthesis in an image sequence. We present algorithms for the analysis problem, including scene-adaptive mesh generation and node tracking over successive frames. We also describe a region-based video coder that integrates the analysis and synthesis algorithms presented. The coder describes each region by an ensemble of connected quadrilateral elements embedded in a mesh structure. For each region, its shape and texture are described by the nodal positions and image functions of the elements in this region in an initial frame, while its motion (including shape deformation) is characterized by the nodal trajectories in the following frames, which are in turn specified by a few motion parameters. This coder has been applied to a typical common intermediate format (CIF) resolution, head-and-shoulder type sequence. The visual quality is significantly better than the H.263-TMN4 algorithm at about 50 kb/s (for the luminance component only, 30 Hz)