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High-Efficiency, Low-Complexity Inter-Frame Coding for Video-Based Dynamic Mesh Coding (V-DMC)
DOI:10.1109/tcsvt.2026.3684031.png)
Abstract
En 中文
Video-based Dynamic Mesh Coding (V-DMC), being standardized by the MPEG-3DGH group, seeks to establish an efficient standard for compressing dynamic meshes with time-varying vertex positions, connectivity, and attributes. By adopting a subdivision and video-based framework, V-DMC effectively leverages both advanced static mesh and video codecs, achieving state-of-the-art dynamic mesh coding efficiency. However, in V-DMC, inter-frame coding—one of the key coding tools—is applied only to a limited subset of frames and remains computationally expensive. To overcome this limitation, we propose a novel inter-frame coding framework for V-DMC that extends applicability to a much larger portion of frames while achieving both high efficiency and low complexity. Specifically, our method consists of four modules: (a) supervoxel-based shape matching for robust and efficient motion estimation; (b) embedded graph deformation for accurate geometry tracking; (c) early inter-frame coding mode decision for accelerated rate-distortion optimization; and (d) UV atlas tracking for generating temporally consistent texture images. Experimental results on the MPEG dynamic mesh dataset show that the proposed method achieves BD-rate improvements of −10.1%, −10.1%, −14.7%, −17.6%, and −15.5% for D1, D2, Luma, Cb, and Cr, respectively, along with a 5% decrease in encoding runtime compared to V-DMC reference software.
Keywords:
Dynamic mesh
parameterization
coding
V-DMC
inter-frame coding
Journal
IF:
11.1
Papers:
846
Citations:
3.1W

