Scalable method for encoding a series of original images, and associated image encoding method, encoding device and decoding device

US8131088B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Peter Amon · Birkenfeld, DE
• Gero Bäse · Birkenfeld, DE
• Andreas Hutter · Munich, DE
• Jürgen Pandel · Feldkirchen-Westerham, DE
• Benoit Timmermann · Zorneding, DE

Key dates

• Filing date: Jun 13, 2005
• Grant date: Mar 6, 2012
• Expiry date: Jul 14, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/13
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A series of decoded images is generated from a series of original images encoded by a first encoding technique following movement-compensated, predictive encoding, where a starting image of a group of successive original images that are to be encoded is defined by a second encoding technique following movement-compensated, temporally filtered partial band encoding based on a determined encoding property of a decoded image of the group of images that are to be encoded, the decoded image is used for generating an output image having a low resolution level, before the images are encoded. At least one output image is generated on each level of resolution from the successive original images of the group of from at least one decoded image during image encoding. The decoded images are provided only with a reduced quality while the reconstituted images are of great quality.