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Unified autoregressive three-dimensional model automatic skeleton binding method and device

PendingCN122176131AImplement end-to-end joint modelingImplement joint modelingCharacter and pattern recognitionBiological modelsPoint cloudAlgorithm
The application relates to the technical field of intelligent generation, in particular to a unified autoregressive three-dimensional model automatic skeleton binding method and device, wherein the method comprises the following steps: converting an input three-dimensional model into point cloud data; performing sampling and normalization processing on the point cloud data to extract local and global geometric features of the three-dimensional model, and determining feature embedding of the point cloud data according to the local and global geometric features; based on the feature embedding and a preset autoregressive model, generating a skeleton tree token sequence and a discrete skin token sequence, to generate a skeleton tree and skin weights, and fusing the skeleton tree and the skin weights to obtain an automatic three-dimensional grid binding result suitable for an animation driving condition. Therefore, the problem that animation effect presentation is affected due to the fact that related technologies cannot uniformly model the skeleton and the skin weights and cannot process sparse skin weights in a more stable manner is solved.
Owner:TSINGHUA UNIVERSITY

A synergistic method of cold-season grazing and warm-season supplemental feeding in alpine meadow

PendingCN122271182AImprove broken rateEfficient crushing
This invention discloses a synergistic method for cold-season grazing and warm-season fertilization in alpine meadows, belonging to the field of alpine grassland ecological restoration and sustainable agricultural management technology. The method includes the following steps: using UAV remote sensing to acquire spatial distribution information of litter in the cold-season grassland, and dividing the grassland into patches with different litter loads based on this information, implementing differentiated grazing by region; using a soil sensor network buried in the grassland to monitor soil temperature and moisture content, dynamically defining the start and end times of cold-season grazing and the operational window for warm-season fertilization; during the warm season, spraying the grassland with liquid nitrogen and phosphorus fertilizer containing synergists according to the warm-season fertilization operational window. This invention deeply couples the physical disturbance of cold-season grazing with the chemical regulation of liquid nutrients in the warm season, solving problems such as slow litter decomposition, low fertilizer utilization, delayed greening, and decreased soil fertility in alpine meadows, achieving a synergistic improvement in grassland production and ecological functions.
Owner:LANZHOU UNIV