Bengt Aslund,Bo Ingvar Ymén,Carl-Johan Aurell,David Richard Jensen,David Thomas Jonaitis,Eric Thomas Healy,Martin Hans Bohlin,Stepahn Parent,Tesfai Sebhatu
申请号：
BR112013007113
公开号：
BR112013007113A2
申请日:
2011.09.29
申请国别(地区):
BR
年份:
2017
代理人:
摘要：
device and scan method and device and reverse scan method. scanning method, comprising: receiving a quantified transformed coefficient from a current block； get a prediction direction of the current block； find, according to the prediction direction, a scan order corresponding to the prediction direction of the current block from a prediction direction and scan order mapping relationship table, where at least one scan order in the prediction direction mapping relationship table and the scan order corresponds to at least two prediction directions； and perform scan processing on the coefficient using the scan order corresponding to the prediction direction of the current block. sweep method according to claim 1, wherein at least the two prediction directions have a geometric correlation relationship and / or a proximity relationship. The scanning method according to claim 2, wherein the geometric correlation relationship between the two prediction directions at least in the two prediction directions is a transposition correlation or the geometric correlation relationship between the two prediction directions at least in both prediction directions is a symmetrical correlation along a reference prediction direction. sweep method according to claim 3, wherein the reference prediction direction is a horizontal direction or a vertical direction. reverse scan method, comprising: obtaining a one-dimensional signal and prediction direction of a current block, wherein the one-dimensional signal and the prediction direction of the current block are obtained by entropy decoding； find, according to the prediction direction, a scan order corresponding to the prediction direction of the current block from a prediction direction and scan order mapping relationship table, in which at least one scan order in the mapping relationship table of the prediction direction and the scan order corresponding to at least two prediction directions； and perform reverse scan processing on the one-d
