Adaptive partition coding

US9756330B2 · kind B2 · utility

Assignee

• GE Video Compression, LLC · US

Inventors

• Philipp MERKLE · Berlin, DE
• Christian Bartnik · Berlin, DE
• Haricharan Lakshman · Berlin, DE
• Detlev Marpe · Berlin, DE
• Karsten Mueller · Berlin, DE
• Thomas Wiegand · Berlin, DE
• Gerhard Tech · Berlin, DE

Key dates

• Filing date: May 9, 2014
• Grant date: Sep 5, 2017
• Expiry date: Apr 19, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/14
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Although wedgelet-based partitioning seems to represent a better tradeoff between side information rate on the one hand and achievable variety in partitioning possibilities on the other hand, compared to contour partitioning, the ability to alleviate the constraints of the partitioning to the extent that the partitions have to be wedgelet partitions, enables applying relatively uncomplex statistical analysis onto overlaid spatially sampled texture information in order to derive a good predictor for the bi-segmentation in a depth/disparity map. Thus, in accordance with a first aspect it is exactly the increase of the freedom which alleviates the signaling overhead provided that co-located texture information in form of a picture is present. Another aspect pertains the possibility to save side information rate involved with signaling a respective coding mode supporting irregular partitioning.