TY - GEN
T1 - Reference Samples Padding for Intra-Frame Coding of Omnidirectional Video
AU - Li, Ning
AU - Wan, Shuai
AU - Yang, Fuzheng
N1 - Publisher Copyright:
© 2018 APSIPA organization.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Due to lack of video coding standard tailored specially to spherical or omnidirectional videos, which are important in Virtual Reality applications, omnidirectional video frames have to be projected onto the 2-Dimension(2D) plane, using the EquiRectangular Projection(ERP) for example, to utilize existing video compression techniques. As there is no information available for prediction outside the left or right border after projection, unexpected artefacts that are generated at the right border of frames degrade the subjective visual quality. Utilizing continuity of the content in the omnidirectional video based on ERP, in this work, an efficient intra-coding method is proposed based on adaptively padding the reference samples at the right border for omnidirectional videos. Using the state of art video encoder, the proposed method can reduce the BD-rate by 0.24% in average for the coding tree units (CTUs) at the right border.
AB - Due to lack of video coding standard tailored specially to spherical or omnidirectional videos, which are important in Virtual Reality applications, omnidirectional video frames have to be projected onto the 2-Dimension(2D) plane, using the EquiRectangular Projection(ERP) for example, to utilize existing video compression techniques. As there is no information available for prediction outside the left or right border after projection, unexpected artefacts that are generated at the right border of frames degrade the subjective visual quality. Utilizing continuity of the content in the omnidirectional video based on ERP, in this work, an efficient intra-coding method is proposed based on adaptively padding the reference samples at the right border for omnidirectional videos. Using the state of art video encoder, the proposed method can reduce the BD-rate by 0.24% in average for the coding tree units (CTUs) at the right border.
UR - http://www.scopus.com/inward/record.url?scp=85063466333&partnerID=8YFLogxK
U2 - 10.23919/APSIPA.2018.8659696
DO - 10.23919/APSIPA.2018.8659696
M3 - 会议稿件
AN - SCOPUS:85063466333
T3 - 2018 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2018 - Proceedings
SP - 1987
EP - 1990
BT - 2018 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2018
Y2 - 12 November 2018 through 15 November 2018
ER -