Apparatus and Method of Wavelet Transform based on Update-Prediction Lifting, Adaptive Prediction Apparatus and Method therefore, and Recording Medium therefor

摘要

The present invention relates to an update-prediction structure lifting-based wavelet transform apparatus and method, an adaptive predicting apparatus and method for the same, and a recording medium therefor. More particularly, Selecting a first prediction direction for minimizing energy in a high band among a plurality of prediction direction candidates set centered on a first updated even-numbered polyphase sample affected by an update from the selected odd polyphase sample, Determining a final prediction direction candidate group based on the selected frequency among the selected first prediction directions, and for each of the odd polyphase samples for each of the divided areas, a second update Among the final prediction direction candidates set centered on even-numbered polygonal samples, Selecting the second prediction direction for minimizing the energy in the second prediction direction and obtaining the second prediction value based on the updated even-numbered polyphase sample corresponding to the selected second prediction direction and the second prediction direction, The remaining odd polyphase samples are subtracted from the odd polyphase samples.;Image, compression, update, prediction, wavelet, direction