Title:
METHOD AND APPARATUS FOR IMPROVING IMAGE PADDING IN VIDEO-BASED POINT-CLOUD COMPRESSION CODEC
Document Type and Number:
WIPO Patent Application WO/2020/145689
Kind Code:
A1
Abstract:
An encoding device and a method for point cloud encoding are disclosed. The method includes generating, for a 3D point cloud, an attribute frame and an occupancy map. The method also includes reducing a resolution of the frames over a number of sequential steps, until the frames are a predetermined size. After the frames are reduced to the predetermined size, the method includes increasing the resolution of the frames over the number of sequential steps while adding padding to modify at least some of the pixels in the attribute frame that do not represent points of the 3D point cloud. While the resolution of the attribute frame is incrementally increased, the method includes performing smoothing on the pixels in the attribute frame that do not represent the points of the 3D point cloud. The method additionally includes encoding the frames to generate a bitstream and then transmitting the bitstream.
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Inventors:
FARAMARZI ESMAEIL (US)
BUDAGAVI MADHUKAR (US)
BUDAGAVI MADHUKAR (US)
Application Number:
PCT/KR2020/000398
Publication Date:
July 16, 2020
Filing Date:
January 09, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
G06T9/00; G06T5/00; H04N19/184
Foreign References:
| US20100002948A1 | 2010-01-07 | |||
| US20150348285A1 | 2015-12-03 | |||
| US20180268570A1 | 2018-09-20 | |||
| US20120246166A1 | 2012-09-27 |
Other References:
XU YILING; KE ZHANG; LANYI HE; ZHIQIAN JIANG; WENJIE ZHU: "Introduction to Point Cloud Compression", ZTE COMMUNICATIONS, vol. 16, no. 3, 1 September 2009 (2009-09-01), pages 1 - 6, XP055687159, DOI: 10.19729/j.cnki.1673@BULLET5188.2018.03.002
"FCC Test Model C2 v2", 122. MPEG MEETING; 20180416, 20 April 2018 (2018-04-20)
See also references of EP 3909023A4
"FCC Test Model C2 v2", 122. MPEG MEETING; 20180416, 20 April 2018 (2018-04-20)
See also references of EP 3909023A4
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
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