Patent · US Active

Depth and video co-processing

US8780172B2 · kind B2 · utility

2Cited by

0References

19Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Ivana Girdzijauskas · Sollentuna, SE
Per Fröjdh · Stockholm, SE
Clinton Priddle · Brisbane, AU

Key dates

Filing date	May 7, 2009
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Dec 1, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04N2213/003
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Co-processing of a video frame (32) and its associated depth map (34) suitable for free viewpoint television involves detecting respective edges (70, 71, 80, 81) in the video frame (32) and the depth map (34). The edges (70, 71, 80, 81) are aligned and used to identify any pixels (90-92) in the depth map (34) or the video frame (32) having incorrect depth values or color values based on the positions of the pixels in the depth map (34)or the video frame (32) relative an edge (80) in 5 the depth map (34) and a corresponding, aligned edge (70) in the video frame (32). The depth values or color values of the identified pixels (90-92) can then be corrected in order to improve the accuracy of the depth map (32) or video frame (34).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.