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Title:
PANORAMIC IMAGE MAPPING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/157568
Kind Code:
A1
Abstract:
Discloses are a panoramic image mapping method and inverse mapping method. In a mapping process, a panoramic image or a spherical surface corresponding to a video A is mapped into a two-dimensional planar image or a video B. First, the spherical surface is divided into three regions, which are recorded as a region I, a region II, and a region III respectively, according to the latitude of the spherical surface; the three regions are mapped into a square plane I', a rectangular plane II', and a square plane III' respectively; and then, the planes I', II', and III' are spliced into one plane. The obtained plane is the two-dimensional planar image or the video B. Compared with an existing common mapping method, the method of the present invention effectively improves oversampling in a high-latitude region, and can effectively reduce a code rate needed by coding and the decoding complexity. The present invention relates to the field of virtual reality, and can be applied to panoramic images and videos.

Inventors:
WANG, Ronggang (Peking University Campus, Shenzhen University Town Lishui Road, Xili Town, Nanshan Distric, Shenzhen Guangdong 5, 518055, CN)
WANG, Yueming (Peking University Campus, Shenzhen University Town Lishui Road, Xili Town, Nanshan Distric, Shenzhen Guangdong 5, 518055, CN)
WANG, Zhenyu (Peking University Campus, Shenzhen University Town Lishui Road, Xili Town, Nanshan Distric, Shenzhen Guangdong 5, 518055, CN)
GAO, Wen (Peking University Campus, Shenzhen University Town Lishui Road, Xili Town, Nanshan Distric, Shenzhen Guangdong 5, 518055, CN)
Application Number:
CN2017/098378
Publication Date:
September 07, 2018
Filing Date:
August 22, 2017
Export Citation:
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Assignee:
PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOL (Peking University Campus, Shenzhen University Town Lishui Road, Xili Town, Nanshan Distric, Shenzhen Guangdong 5, 518055, CN)
International Classes:
H04N19/146; G06T3/00; H04N19/182; H04N19/50
Foreign References:
CN106899840A2017-06-27
CN106412554A2017-02-15
CN105898344A2016-08-24
CN106231311A2016-12-14
CN103077509A2013-05-01
Attorney, Agent or Firm:
BEIJING WANXIANGXINYUE INTELLECTUAL PROPERTY OFFICE (Room 1625, 6th Floor´╝îBeijing Resource Yanyuan HotelNo. 1 Yiheyuan Road, Haidian District, Beijing 0, 100080, CN)
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