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About this paper
Jiacheng Ding, Yanliang Qi, Cong Guo, Peihua Mai
AbacusGS reduces CPU work in Gaussian-splat rendering by grouping splats, storing a sorted order within each group, and sorting only visible groups at runtime. A dot product selects its direction or reverse, and fine-tuning adapts the model to the approximation. Across 13 scenes, PSNR loss is 0.126 dB; CPU-ordered OpenGL frame time falls 4.5×, but phones were not tested.
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