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
Testing SQL query writing skills
Tie down strap hook
Image reproduction system and image reproduction processing program
MIM capacitor and associated production method
Parasitic element compensation circuit and method for compensating for the parasitic element
Transaction finance processing system and approach
  Randomly Featured Patents
Integrated circuit with test signal routing module
Neck support cushion for utilization in conjunction with hair treatment
Fan blade apparatus
Apparatus and methods for oscillation suppression
Supporting and guiding stand arrangement to be used in a continuous casting plant
Plasma etching at reduced pressure
Multi-ports small form-factor pluggable transceiver cage
System and method for providing a user terminal with supplemental information to a search result