Parallel Dynamic Mesh Alignment Across Time-Varying Connectivity
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Solution Overview
Problem
Existing mesh compression standards fail to efficiently handle dynamic meshes with time varying connectivity and attribute maps, and sequential alignment methods hinder parallelization, leading to slow encoding and decoding processes.
Innovation Solution
Implementing parallel dynamic mesh alignment through intra-frame and inter-frame alignment schemes that allow independent processing of frames, eliminating dependencies on previous frames, and utilizing spatial and temporal correlations to achieve efficient compression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential alignment methods are used for temporal alignment, then alignment accuracy is improved, but encoding and decoding speed deteriorates due to inability to parallelize processing
Solution Approach 1:
The patent divides the mesh into multiple independent charts that can be processed separately. Each chart is aligned independently using the same alignment scheme, allowing parallel processing across multiple charts while maintaining alignment accuracy. This segmentation enables the system to achieve both precise alignment and improved processing speed through parallelization.
2Stability of the object's composition
If dependency on previous frames is maintained for temporal alignment, then alignment consistency is improved, but parallel processing capability deteriorates
Solution Approach 1:
The patent determines the alignment scheme from a reference frame in advance and applies this predetermined scheme to multiple frames simultaneously. By pre-establishing the alignment transformation based on chart locations in a reference frame, the system eliminates the need for sequential frame-by-frame processing while maintaining alignment consistency across all frames.
3Adaptability or versatility
If existing mesh compression standards are used for dynamic meshes with time varying connectivity, then compatibility is improved, but compression efficiency deteriorates
Solution Approach 1:
The patent employs dynamic chart allocation that adapts to time-varying mesh connectivity and attribute maps. The alignment scheme is determined independently for each frame based on its specific chart locations, allowing the system to handle dynamic meshes with changing connectivity while maintaining compression efficiency. This dynamic approach improves upon static standards by adapting to temporal variations in the mesh data.
Data Source
AI summary
Method, apparatus, and system for parallel dynamic mesh alignment are provided. The process may include determining that a temporal alignment is present between one or more frames in a received input mesh including a plurality of polygons that describe a surface of a volumetric object, then, determining an intra-frame alignment scheme to spatially align charts within a frame. The process may also include applying the intra-frame alignment scheme to one or more corresponding charts in the one or more frames for inter-frame alignment; and processing the one or more frames in parallel based on the intra-frame alignment scheme and inter-frame alignment.