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
Panel for decoration
Malicious attack detection and analysis
Laser receiver for detecting a relative position
Techniques for image segment accumulation in document rendering
Reliable event broadcaster with multiplexing and bandwidth control functions
Method and device for evaluating evolution of tumoural lesions
Dynamic bar oriented user interface
  Randomly Featured Patents
Methods and systems for color image processing
Light fixture lens end
Sintered ferromagnetic powder metal parts for alternating current applications
Head protecting headwear
System for optimally processing a transaction and a query to the same database concurrently
Fungicidal mixtures
Pivotable wire hook
Kick boxing training bag with flexible and dismountable supporting structure
Stackable flower pot
Scissors, particulary hairdresser's scissors