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
RPM Controlled Wind Power Generation System
Optical power measurement method, optical line terminal and optical network unit
Apparatus and method for controlling semiconductor die warpage
Coating composition, and a process for producing the same
Pixel circuit
Circuitry for measuring and compensating phase and amplitude differences in NDT/NDI operation
Pattern identification apparatus, control method and program thereof
  Randomly Featured Patents
Turbine lubricant and method
Body-attachable bag for transporting articles
Engine heater
Catalyst composition for rigid polyurethane foams
File storage in a computer system with diverse storage media
Systems and methods for determining return on community investment in healthcare access programs
Reticular structures having improved mechanical characteristics as well as process and device for preparing same
Contextual boost for object detection
Plug enclosing outlet cover
Concealable wiper apparatus for vehicle