Method and system for codifying signals that ensure high fidelity reconstruction

摘要

In a data processing system, a method and system for codifying signals that ensure high fidelity reconstruction are provided. A minimum number of most significant bits (MSBs) may be determined for use in a two-dimensional (2D) transform matrix during forward and inverse transform operations so that high fidelity reconstruction may be possible without the need for mismatch error control. For a forward transform operation, a minimum number of F MSBs may be selected from a reference transform coefficient in an effective transform matrix to ensure high fidelity reconstruction. For an inverse transform operation, a minimum number of R MSBs may be selected from the reference transform coefficient in the effective transform matrix to ensure high fidelity reconstruction. The effective transform matrix may result from the decomposition and implementation of a finite precision transform matrix. At least one dimension of the transform matrix may comprise four or eight points.