Systems and methods for reduced bit-depth processing in video-related data with frequency weighting matrices

摘要

Embodiments of the present invention comprise systems and methods for processing of data related to video wherein reduced bit depth intermediate calculations are enabled.

主权项

id="REI-00004" date="20170418" 1. A method for dequantization and inverse transformation, said method comprising:
(a) receiving a matrix of quantized coefficient levels; (b) receiving at least one quantization parameter (QP); (c) determining a reconstructed transform coefficient (RTC) matrix wherein each value in said quantized coefficient level matrix is scaled by a value in a scaling matrix which is dependent on QP % P, where P is a constant value; (d) computing scaled reconstructed samples (SRS) by performing an inverse transformation on said RTC matrix values; and (e) computing reconstructed samples, by normalizing the SRS values.