Minimization of Submesh Boundary Errors In Dynamic Mesh Coding
Koki Kishimoto, Kei Kawamura, Haruhisa Kato · 2024
The video-based dynamic mesh coding (V-DMC) standard is a cutting-edge technology for the compression of dynamic mesh data. V-DMC enables parallel encoding and partial decoding by introducing submesh frameworks in which dynamic meshes are separated and independently processed. However, V-DMC may raise submesh boundary errors like holes due to misaligning the existence or coordinates of vertices, degrading the objective and subjective qualities of decoded dynamic meshes. To minimize the boundary errors and improve the coding performance, we propose a two-stage boundary error correction method in V-DMC’s preprocessing and encoding/decoding stages. Specifically, the first stage rearranges the preprocessing order to minimize boundary errors, whereas the second stage fills holes based on boundary information. Experimental results show that the proposed method can minimize the boundary errors among the V-DMC decoded meshes, and thus significantly improve the objective and subjective quality compared to the V-DMC reference software.