Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding

摘要

For a bitstream comprising an encoded first video picture, an encoded second video picture, and an encoded third video picture, a method of decoding comprising: computing a particular value by dividing (i) a first display time difference between the second video picture and the first video picture by (ii) a second display time difference between the third video picture and the first video picture; computing a motion vector for the second video picture based on the particular value and a motion vector for the third video picture; and decoding at least one video picture by using the computed motion vector. (D 0