Patent ID: 7577307
Filing Date: 2009-08-18
Classification: H04N

Abstract:
1. A lifting wavelet transform for transforming an input into an adaptive highpass output and an adaptive lowpass output, the lifting wavelet transform useful for transforming data into transform data being the adaptive highpass output and the adaptive lowpass output and for communicating the same over a communication data link, the lifting wavelet transform comprising, a three lifting stage wavelet transform for transforming an input into a third highpass output and a third lowpass output, and an adaptive lifting stage for processing the third highpass output and the third lowpass output into an adaptive highpass output, the adaptive lifting stage comprising a [P(z)/C wherein, a first order difference is a difference between a cubic interpolation and a linear interpolation of two successive samples of the third lowpass output, a second order difference is the difference between two consecutive first order differences, a third order difference is the difference between two consecutive second order differences, and the adaptive prediction output is equal to the sum of the first order difference and one quarter of the third order difference, the [P(z)/C P(z) is a filter function characterized by a polynomial for generating the adaptive predictor output, C is a constant, and C