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In this paper, we propose a computationally efficient occlusion handling technique based on a fully analytic mesh based computer generated holography. The proposed technique uses angular spectrum convolution that renders exact occlusion while preserving all other aspects of the fully analytic mesh based computer generated holography. The proposed method is computationally efficient as only a single convolution operation is required for each mesh without numerical propagation between the meshes. The proposed method is also exact as it performs the occlusion processing in the tilted mesh plane, being free from artifacts coming from orthographic spatial masking. The proposed method can be applied to the self and the mutual occlusions between the objects in the 3D scene. The computer simulated results show the feasibility of the proposed method.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"xml":"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","url":"https://figshare.com/collections/Occlusion_handling_using_angular_spectrum_convolution_in_fully_analytical_mesh_based_computer_gene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