Patent ID: 8116371

Claim:
A method of transforming a video into a coded compressed video with improved compression efficiency and quality scalability including coding refinement symbols video with quality scalability that contains the binary informational elements, comprising the steps of: classifying refinement coefficients into at least one binary element symbol and any remaining multinary symbols; determining a probability balance between 1 and 0 for each of a prior binary informational element and a current binary informational element; if the probability balance of the prior binary informational element is similar to the probability balance of the current binary informational element grouping any fractional symbols of the prior binary informational element with the current binary informational element, and coding said grouped symbols using a variable length coding technique; if the probability balance of the prior binary informational element is not similar to the probability balance of the current binary informational element coding any fractional symbols of the prior binary informational element, grouping symbols of the current binary informational group; and coding said grouped symbols using a variable length coding technique.