So there ’ s a great correlation among the second bitplane . so we offered a new arithmetic coding scheme in which the design of context models is based on level and bitplane . considering the difference between luma and chroma coefficients , we will make it separately 由于abslevel = 1的高概率出現(xiàn),使得第二位平面具有很大的相關性,因此文中算術編碼的上下文模型的設計方案主要基于level值和bitplane 。
So if we gain the relation between the the derivative of ggd distortion - rate function and the ggd shape parameter , then we can reconstruct the rate - distortion function . the bitplane - based fgs of mpeg - 4 has been accepted as a standard coding tool for video streaming applications 這樣,實際中只需研究特定編碼量化模式下ggd失真速率函數(shù)的導數(shù)與ggd形狀參數(shù)的關系和規(guī)律,就可以重建相應編碼模式下的失真速率函數(shù)。
Introducing gray structuring elements dilation to the classification of wavelet coefficients , producing different significance for different clustering and benefiting for fractional bitplane coding . suggesting decompose encoded ll subband to get seed coefficients of dilation firstly . at the beginning of each bit plane coding the seeds is acquired , by the within - subband and cross - subband dilation of over significant pixels and significant pixels 而另一種算法bdrl雖然編碼性能不如mcgsd ,但是由于在整個編碼的過程中沒有進行太多的分數(shù)比特平面編碼,沒有任何來回掃描圖像的步驟,所以與目前的嵌入式小波編碼器相比,復雜度是最低的,可以應用于對復雜度要求嚴格的環(huán)境。
百科解釋
Bitplane is a provider of software for 3D and 4D image analysis for the life sciences. Founded in December 1992, Bitplane operates out of two offices in Zürich, Switzerland and one in South Windor, CT, USA.