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
Rupture resistant system
Asynchronous distributed de-duplication for replicated content addressable storage clusters
Cake knife handle
Methods and apparatus to determine impressions using distributed demographic information
Light emitting device and electronic device
LED-array package
  Randomly Featured Patents
Wall lamp
Double strike ignition control
Sheet loader, sheet folding apparatus, and sheet finishing system
Ladder cap
Selection stage of the AC signal of greater amplitude between two signals of different frequencies
Mail box
All-fiber interferometric fiber optic gyroscope having a minimum reciprocal configuration
Power transmission
Retrofit of a center inlet type scrubber with absorption/gas distribution tray to improve gas-liquid contact in the absorption zone
Treatment or prevention of cancer and precancerous disorders