Ray-space360: an extension of ray-space for omnidirectional free viewpoint

초록

Conventional 3DoF (Degree of Freedom) systems provide only rotational view transformation. 6DoF VR systems offer a more realistic VR by supporting view transformation for translational movement. This paper proposes ray-space360 which supports both rotational and translational view transformation simultaneously. Ray-space360 is an extension of ray-space [1-3] to an omnidirectional view in order to support a new camera structure in a square form for ray-space360 configuration. Ray-space360 also provides a way to use the intersection to connect independent ray-spaces. Thanks to its low complexity, the proposed system can provide real-time service with a low performance processor such as a mobile processor. This paper presents the result of 4DoF ray-space360 which provides view transformation of yaw, pitch, x, and z axes. The ray-space360 can be extended to 6DoF simply by stacking cameras.

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