Motion image data compression system

专利名称：Motion image data compression system发明人：Takami Niihara申请号：US07/661861申请日：19910227公开号：US05157742A公开日：19921020

摘要：A motion data image compression system comprises a first element to divide anI'th frame (I=1, 2, . . . N-1) between the two frames F.sub.O and F.sub.N out of N frames(where N is an integer of 2 or more) of digital motion image data, into a block B.sub.Iformed of a plural number of pixels, and to determine the motion vector MVOI of framesF.sub.O and F.sub.I for each of the divided blocks B.sub.I and to determine the blockB.sub.O that uses the motion vector MVOI to predict the block B.sub.I, a second elementto determine the motion vector MVNI between frame F.sub.N and F.sub.I for each blockB.sub.I and that uses the motion vector MVNI to determine the block B.sub.N thatpredicts the block B.sub.I, a third element that determines the motion vectors MVON andMVNO of frame F.sub.N and F.sub.O for each block B.sub.I, and uses the motion vectorsMVON and MVNO to determine the predictive motion vector MVOI' between frameF.sub. O and F.sub.I, determine the block B. sub.O, that predicts the block B.sub. I,determine the predictive motion vector MVNI' between frames F.sub.N and F.sub.I, andthat uses the predictive motion vector MVNI' to determine the block B.sub.N, thatpredicts block B.sub.I and the block B. sub.ON, that is the linear sum of blocks B.sub.O,and B.sub.N', a fourth element that determines the block B.sub.DC from the averagevalue of block B.sub.I, and a fifth element that selects the block out of the blocks

B.sub.O, B.sub.N, B.sub.ON, and B.sub.DC for which the correlation with block B.sub.I isgreatest.

申请人：VICTOR COMPANY OF JAPAN, LTD.

代理人：Michael N. Meller

更多信息请下载全文后查看