PCT/CA2013/050370

METHOD AND SYSTEM FOR VIDEO ERROR CORRECTION

Details for PCT/CA2013/050370

Application No.

PCT Application Number

PCT/CA/2013/050370

Publication No.

PCT Publication Number

WO/2013/170381

Applicants

PCT Patent Applicants

SOCOVAR, LIMITED PARTNERSHIP

Agents

PCT Patent Agents

ESMAILI, Shahrzad et al.

Priority Data

PCT Patent Priority Data

US61/646,852 filed on May 14, 2012
US61/754,724 filed on January 21, 2013

PCT Pamphlet

The front page of the PCT Patent Application

PCT Pamphlet Front Page

Dates

Application Date

May 14, 2013

Publication Date

November 21, 2013

Earliest Priority Date

May 14, 2012

Deadlines

30 Month Date

30 Month National Phase Deadline.

November 14, 2014

31 Month Date

31 Month National Phase Deadline.

December 14, 2014

These dates are in the Past. Contact us to find out if National Phase entry is still possible.

Abstract

In real-time video applications, where unreliable networks are commonplace, corrupted video packets can affect adversely the visual quality. In this patent application, we present an improved method and system for video error correction based on maximum likelihood. Rather than discarding corrupted video packets, the method estimates the likeliest syntactically valid video slice content based on these packets. We present two embodiments, which permits solving the problem at the slice-level, and a simplified solution operating at the syntax element-level. The performance of the method is evaluated using the H.264 baseline profile. Unlike existing video error concealment methods, we correct errors in the bitstream instead of reconstructing missing pixels. Simulation results show that the proposed method yields improved visual quality, and is also computationally simpler than existing state-of-the-art error concealment methods. A corresponding system for video error correction is also provided.

Info

PCT Patent application PCT/CA2013/050370 was filed on May 14, 2013 by SOCOVAR, LIMITED PARTNERSHIP. The title of this PCT Patent Application is "METHOD AND SYSTEM FOR VIDEO ERROR CORRECTION" and the patent specification was published as WO/2013/170381 on November 21, 2013.

The earliest priority date for the patent application is May 14, 2012 and therefore the 30 month national phase deadline for PCT/CA/2013/050370 is November 14, 2014 and the 31 month national phase deadline for PCT/CA/2013/050370 is December 14, 2014

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