Resources Contact Us Home
Coding apparatus, coding method, program for executing the method, and recording medium storing the program

Image Number 8 for United States Patent #7688234.

A coding apparatus that codes video data using an arithmetic coding scheme such as the AVC standard includes an orthogonal transformation unit, a quantizer, an arithmetic coder, and a controller. The arithmetic coder includes a binarization unit, a binary arithmetic coder, and a code length predictor. The code length predictor outputs a predicted number of bits by evaluating a predictive function using, as the argument of the function, the bin size of the binary symbols generated from input data during coding. The controller controls the coding bit rate by changing the quantization scale of the quantizer on the basis of the predicted number of bits. The predictive function is defined such that the predicted number of bits increases as the bin size increases, and furthermore such that the polynomial degree of the function changes when the bin size exceeds a predefined threshold value.

  Recently Added Patents
Campanula plant named `PKMM03`
Elastic polypropylene-based film compositions
Machine tool with an electrical generator for passive power generation
Method and/or apparatus for navigating mobile robot using virtual sensor
RFID device using single antenna for multiple resonant frequency ranges
Containers having radio frequency identification tags and method of applying radio frequency identification tags to containers
Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
  Randomly Featured Patents
Fuel reformer device
Low cost, high average power, high brightness solid state laser
Device for thermal treatment of scrap
Program reminder system
Label portion of a fabric and air freshener package
Twin p-well CMOS imager
Highly adaptable query optimizer search space generation process
Flush valve diaphragm orifice insert and rib design
Embedding of dynamic circuits in a static environment
8-substituted B-nor-6-Thiaequilenin compounds having activity as selective estrogen receptor modulators