Method for encoding a sequence of digitized images

US8472739B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Peter Amon · Birkenfeld, DE
• Jürgen Pandel · Feldkirchen-Westerham, DE

Key dates

• Filing date: Aug 14, 2009
• Grant date: Jun 25, 2013
• Expiry date: Jun 25, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/573
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Pixels with associated pixel values form a sequence of digitized images that are encoded by predicting pixels of the images and encoding the prediction errors. At least a part of the pixels are encoded by determining trajectories, each running through a pixel to be encoded and through other previously encoded pixels from the image of the pixel being encoded and/or from one or more images that are temporally proximate to that image. For each of the trajectories determined, a valuation parameter is in inverse proportion to the deviations in the uncoded associated pixel values of the other pixels along a trajectory. A predicted pixel value of the pixel to be encoded is determined based on the other pixels of the trajectory with the highest valuation.