Resources Contact Us Home
Fine granularity scalability using bit plane coding of transform coefficients

Image Number 2 for United States Patent #6980597.

A system for efficient bit plane coding of transform coefficient data, such as DCT data used in a video coding system. Decimal values for the transform coefficients are converted to binary values, where each bit occupies a corresponding bit plane, from the most significant bit to the least significant bit. One bit from each coefficient is provided in a common bit plane. A one-bit flag or codeword is used for coding one or more initial all-zero bit planes, while another one-bit flag is used for designating the first subsequent non-all-zero plane. For the first non-all-zero plane, a reduced coding table is used to provide codewords that follow the one-bit flag.

  Recently Added Patents
Personal alarm device for headwear for proximity detection
Curable sublimation marking material and sublimation transfer process using same
Critical word forwarding with adaptive prediction
Microfluidic cartridge and method of using same
Data center with free-space optical communications
Quick mounting device
Process of preparing functionalized polymers via enzymatic catalysis
  Randomly Featured Patents
New toning agents for thermographic and photothermographic materials and process
System and process for identifying objects and/or points nearby a given object or point
Optical glass, precision press-molding preform, optical element and their production processes as well as image-sensing device
Charged beam exposure system
Electronic motor protection relay
Security door and frame construction
Computer readable medium for implementing supply chain control using service-oriented methodology
Methods and apparatus for synchronization and detection in wireless communication systems