Resources Contact Us Home
Adaptive 2.sup.n-ary tree generating method, and method and apparatus for encoding and decoding 3D volume data using it

Image Number 14 for United States Patent #7925103.

A method and apparatus for encoding and/or decoding depth image-based representation (DIBR) data are provided. The encoding method includes: converting 3-dimensional (3D) volume data into adjustable octree data with predetermined labels given to nodes; by referring to the labels, encoding nodes of the adjustable octree from the root node to leaf nodes by a modified breadth-first search (BFS) method allocating priorities among children nodes; and generating a bitstream with predetermined header information and encoded node data. The decoding method includes: extracting header information containing at least resolution information of an object, from a bitstream and decoding the header information; calculating the number of nodes by using the resolution information of the header, and by a modified BFS method allocating priorities among children nodes, decoding each node of a tree from the root node to leaf nodes; and restoring an adjustable tree by using decoded nodes. According to the method and apparatus, a huge amount of 3D volume data can be encoded with a high efficiency, and volume data with an arbitrary resolution as well as volume data with a fixed resolution can be encoded with a high efficiency. Accordingly, with a small amount of data, 3D volume data with a high picture quality can be restored. In addition, since a progressive bitstream is generated, 3D volume data can be shown progressively when decoding is performed.

  Recently Added Patents
Low-complexity spectral analysis/synthesis using selectable time resolution
Light emitting diode
Substituted N-(3-(pyrimidin-4-yl)phenyl)acrylamide analogs as tyrosine receptor kinase BTK inhibitors
Belt adjuster
Redirecting optics for concentration and illumination systems
Implementing vector memory operations
Ventilated vacuum commutation structure
  Randomly Featured Patents
Semiconductor laser device
Patch material for patching holes and cracks in drywall, wood, block, and cement and the like, and method of making and dispensing the patch material
Pneumatic tire having wear indicator
Turbo-supercharging system for internal combustion engines
Shingled material roll feed for mail insertion system
Silylated photo-resist layer and planarizing method
Apparatus for projecting computer generated stereoscopic images
Device to remove sulfur from water systems
Circuit for determining non-homogenous second order perspective texture mapping coordinates using linear interpolation
Video game protective glove