Figure 5
Framework of inter-frame octree geometry coding. It shows how occupancy bo to br are coded and outlines the decision-making of different Fine-CtxS based on the sparsity and the state of inter-frame prediction (i.e., isSparse and isInter2), and the application of corresponding coders with probability updating. Specially, in the proposed improvements, InterNSparse Fine-CtxS and InterSparse Fine-CtxS will be mapped to corresponding Coder based the value of predicted occupancy bPi. Refer to the image caption for details.

Framework of inter-frame octree geometry coding. It shows how occupancy bo to br are coded and outlines the decision-making of different Fine-CtxS based on the sparsity and the state of inter-frame prediction (i.e., isSparse and isInter2), and the application of corresponding coders with probability updating. Specially, in the proposed improvements, InterNSparse Fine-CtxS and InterSparse Fine-CtxS will be mapped to corresponding Coder based the value of predicted occupancy bPi.

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