Hidden surface removal method using object point based ray tracing in CGH

Keita Watanabe; Yuji Sakamoto

doi:10.1117/12.2590812

13 March 2021 Hidden surface removal method using object point based ray tracing in CGH

Keita Watanabe, Yuji Sakamoto

Proceedings Volume 11766, International Workshop on Advanced Imaging Technology (IWAIT) 2021; 117660K (2021) https://doi.org/10.1117/12.2590812
Event: International Workshop on Advanced Imaging Technology 2021 (IWAIT 2021), 2021, Online Only

Abstract

Computer-generated hologram runs into difficulty with multi-perspective rendering because it handles threedimensional images. In this study, we propose a hidden surface removal method that enables continuous motion parallax by ray tracing from a point light source placed on a virtual object to the hologram plane. This method allows us to investigate in detail whether light from a point source reaches each pixel of the hologram plane, which in turn enables the removal of hidden surfaces and shading corresponding to continuous viewpoint movement. Although ray tracing is computationally intensive and takes a long time, NVIDIA’s Turing architecture GPUs, which have computation cores specialized for ray tracing, enable fast calculation.

Citation Download Citation

Keita Watanabe and Yuji Sakamoto "Hidden surface removal method using object point based ray tracing in CGH", Proc. SPIE 11766, International Workshop on Advanced Imaging Technology (IWAIT) 2021, 117660K (13 March 2021); https://doi.org/10.1117/12.2590812

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