Title :
A transformed block-based motion compensation technique
Author :
Haibo Li ; Forchheimer, R.
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Sweden
Abstract :
Block-based motion compensation has been widely used for the removal of temporal redundancy existing in image sequences. However, the prediction image generated by this technique suffers from a perceptually annoying blocking-effect. This becomes especially serious in video transmission at very low bit rates. To overcome this problem, a transformed block-based motion compensation technique is proposed in this paper. Preliminary results show that both subjective and objective improvements can be obtained when a transformed block-based motion compensation scheme is employed instead of a direct block-based scheme.<>
Keywords :
block codes; image coding; image sequences; motion compensation; prediction theory; transform coding; blocking-effect; image coding; image sequences; objective improvements; prediction image; subjective improvements; temporal redundancy reduction; transformed block-based motion compensation; very low bit rates; video transmission; Bit rate; Image generation; Image sequences; Motion compensation;
Journal_Title :
Communications, IEEE Transactions on
