SIGGRAPH ASIA 2026 · Forthcoming

Log-linear Kernel Cluster Distillationfor Lightweight Neural Monte Carlo Denoising

Ye YuanZijuan YuanJunyuan HeZiren WangChangyun ZhiChenxi ZhouBoshan LiuYanwen GuoJie Guo†

State Key Lab for Novel Software Technology, Nanjing University

† Corresponding author

A lightweight Monte Carlo denoiser that predicts mixtures of kernel archetypes and residual offsets, retaining near-teacher image quality with 60.7% less inference time.

Interactive demo

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16.3 ms at 1080p60.7% less time than NPPD Teacher8.8M parameters

RTX 4090 · FP16 / TensorRT 10.13 · fused CUDA filtering · I/O excluded.

Method overview

The student predicts compact mixtures of teacher-derived archetypes and residual offsets. A log-linear expansion reconstructs normalized kernels, while image- and kernel-space distillation preserve the teacher’s filtering behavior.

Citation
Prepublication BibTeX
@inproceedings{yuan2026loglinear,
  title  = {Log-linear Kernel Cluster Distillation for
            Lightweight Neural Monte Carlo Denoising},
  author = {Yuan, Ye and Yuan, Zijuan and He, Junyuan and
            Wang, Ziren and Zhi, Changyun and Zhou, Chenxi and
            Liu, Boshan and Guo, Yanwen and Guo, Jie},
  booktitle = {SIGGRAPH Asia 2026 Conference Papers},
  year   = {2026},
  doi    = {10.1145/3829340.3842233},
  note   = {Forthcoming}
}