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
Lubricant composition and antioxident composition
Liquid crystal display having wide viewing angle
Low cost mesh network capability
Method of manufacturing pipe with branch
Graphical communication user interface with graphical position user input mechanism for selecting a display image
Wireless communications system, wireless communications apparatus, wireless communications method and computer program for wireless communication
Switched capacitor amplifier
  Randomly Featured Patents
Optical waveguide
System and method for automatically saving memory contents of a data processing device on power failure
System and method for providing power to electrical devices
Method and system for offloading execution and resources for resource-constrained networked devices
Grid tee for suspension ceiling
Anti-skid device
Laser ridge skin distortion reduction method
Metallic laminate composite
Polarizer, coating liquid, and manufacturing method for polarizer
Elevation mechanism of tripod