TY - GEN
T1 - Rendering for 3D Light Field composed of 360° Images
AU - Lee, Du Yeol
AU - Jung, Hyunmin
AU - Rhee, Chae Eun
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Light Field (LF) is very simple in that it creates views by combining pixels from images. Especially, 3D LF considers light rays passing through a line, not a plane, so it is easy to captures light rays. This paper proposes a LF rendering method in a 3D LF composed of 360° images, which supports maximum field of view. Existing 3D LF acquires light rays with a general camera such as an action camera or a DSLR camera, and the conventional 3D LF rendering takes this into consideration. If the 3D LF rendering method is applied to the 3D LF composed of 360° images, unnatural views are rendered. To cope with this problem, this paper proposes two rendering schemes. First is warping, which is used to create views from equirectangular 360° images. It serves to straighten curved objects in a equirectangular image. Second is light ray selection considering vertical incident angle (LRS-VA). The relationship between light rays and viewpoint motion depends on vertical incident angle, but the conventional 3D LF rendering does not take this into account. By considering this relationship, LRS-VA renders the top and bottom pole views more natural. In addition, LF rendering requires very fast operation speed, and this paper verifies the real-time operation of the proposed method through GPU implementation.
AB - Light Field (LF) is very simple in that it creates views by combining pixels from images. Especially, 3D LF considers light rays passing through a line, not a plane, so it is easy to captures light rays. This paper proposes a LF rendering method in a 3D LF composed of 360° images, which supports maximum field of view. Existing 3D LF acquires light rays with a general camera such as an action camera or a DSLR camera, and the conventional 3D LF rendering takes this into consideration. If the 3D LF rendering method is applied to the 3D LF composed of 360° images, unnatural views are rendered. To cope with this problem, this paper proposes two rendering schemes. First is warping, which is used to create views from equirectangular 360° images. It serves to straighten curved objects in a equirectangular image. Second is light ray selection considering vertical incident angle (LRS-VA). The relationship between light rays and viewpoint motion depends on vertical incident angle, but the conventional 3D LF rendering does not take this into account. By considering this relationship, LRS-VA renders the top and bottom pole views more natural. In addition, LF rendering requires very fast operation speed, and this paper verifies the real-time operation of the proposed method through GPU implementation.
KW - 360° image
KW - 3D light field
KW - GPU acceleration
KW - light field rendering
KW - real-time rendering
UR - https://www.scopus.com/pages/publications/85140655466
U2 - 10.1109/ITC-CSCC55581.2022.9895012
DO - 10.1109/ITC-CSCC55581.2022.9895012
M3 - Conference contribution
AN - SCOPUS:85140655466
T3 - ITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications
SP - 128
EP - 131
BT - ITC-CSCC 2022 - 37th International Technical Conference on Circuits/Systems, Computers and Communications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 37th International Technical Conference on Circuits/Systems, Computers and Communications, ITC-CSCC 2022
Y2 - 5 July 2022 through 8 July 2022
ER -