Variable length coding of coefficient clusters for image and video compression

An encoding method device and the coding the invention claims a method for realizing coding method of software of the medium. The coding method comprises: The continuous non-zero value coefficient of the group to code the group code it comprises the following at least two parameter defined of united event for joint coding: Group on the front of the zero value number of coefficients and the minority middle of the non-zero value number of coefficients. The group to be coded it also comprises the instruction group in the range is 1 trailing non-zero value coefficient of the number of the parameter to code at the same versions of the parameter indicating united event in the width is 1 the smear coefficient part of the number so as to make the code is prepared based on 3d combined variable length code table. The method further comprises which does not through the joint coding is coded by the non-zero value coefficient of the amplitude of the encoding such as to control the range is 1 smear coefficient outside of the amplitude of the encoding.