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학술지 A Unified Panoramic Stitching and Multi-Projector Rendering Scheme for Immersive Panoramic Displays
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저자
Saleh Saeed, Rehan Hafiz, Ashar Rasul, Muhammad Murtaza Khan, 조용주, 차지훈, 박운상
발행일
201512
출처
Displays, v.40, pp.78-87
ISSN
0141-9382
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.displa.2015.06.002
협약과제
14ZR1100, 휴먼융합형 파노라마 기술 개발, 차지훈
초록
Panoramic videos provide a high resolution wide-angle field of view to audience. The rendering of such panoramic videos on large multi-projector curved displays further enhances the experience by providing them an immersive visual environment. Immersive panoramic projection thus comprise of three steps: acquisition of videos, stitching of video frames and their projection using multi-projector display system. Both panoramic stitching and multi-projector rendering require compute intensive geometric and photometric transformations that have to be applied for each frame of a video during stitching as well as rendering process. In this paper, we propose a unified scheme that handles these two separate geometric transformations using a single, combined Look up Table (LUT). The scheme allows projection of planar and cylindrical panoramas on curved cylindrical displays. Experimental results show that the proposed scheme provides a speedup of up to 73% and 83% for projector resolutions of HD and 4K respectively, for a two-camera two-projector panoramic display system. Furthermore, for a 4K projector, the proposed scheme requires 2.278 ms for the geometric transformation of its content, thus enabling real time panoramic video projection.
키워드
Look up Table, Multi camera, Multi projector displays, Panoramas
KSP 제안 키워드
Angle field of view, Cylindrical displays, Display System, Field of view(FOV), Geometric transformation, High-resolution, Multi-camera, Multi-projector display, Panoramic display, Panoramic stitching, Panoramic video