MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202647084914 A) filed by Fraunhofer-Gesellschaft Zur Frderung Der on July 10, 2026, for Transform-Based Block-Wise Coding Using Prediction.
Inventors include Pfaff, Jonathan; Kirchhoffer, Heiner; Helmrich, Christian; Pientka, Sophie; Schwarz, Heiko; Marpe, Detlev; and Wiegand, Thomas.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: A decoder and an encoder for coding a digital time-varying signal from or into a data stream are presented. The decoder is configured to decode the digital time-varying signal from the data stream in temporal blocks by decoding each temporally residual-predicted temporal block of the digital time-varying signal by predicting the respective temporally residual-predicted temporal block using a selected prediction mode out of a set of prediction modes to obtain a prediction signal, determining a prediction residual signal of the respective temporally residual-predicted temporal block, and correcting the prediction signal using the prediction residual signal, wherein, in the determining the prediction residual signal, sequentially decode second-stage-predicted residual samples of residual samples of the respective temporally residual-predicted temporal block along a sample order by deriving a second-stage residual sample prediction value for a currently decoded second-stage-predicted residual sample based on already decoded residual samples within a template of a predetermined number of sample positions preceding the currently decoded second- stage-predicted residual sample in sample order, decoding a second-stage-correction value for the currently decoded second-stage-predicted residual sample from the data stream, and correcting the second-stage residual sample prediction value using the second-stage-correction value.
Disclaimer: Curated by HT Syndication.
