Cheng Sun
Cheng Sun is a research scientist at NVIDIA Research Taiwan, where his work covers 3D reconstruction and scene understanding. He coauthored HorizonNet, a panoramic room-layout model, and Direct Voxel Grid Optimization for radiance-field reconstruction with voxel grids. In 2025, he coauthored Sparse Voxels Rasterization and Play4D, spanning adaptive-voxel rendering and free-viewpoint video for virtual-reality and light-field displays. In 2026, he coauthored a real-time radiance-field renderer for light-field displays.
Timeline
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2018–2023
A PhD at Tsing Hua
He earns a PhD from the Institute of Information Systems and Applications at National Tsing Hua University. His time there spans 2018 to 2023.
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2019
Room layouts from panoramas
At CVPR 2019, he coauthors HorizonNet, which estimates room layout from a panoramic image using three one-dimensional vectors.
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2022
Voxel-grid radiance fields
At CVPR 2022, he coauthors Direct Voxel Grid Optimization, a grid-based approach for rapid per-scene radiance-field reconstruction.
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2025
Rendering with sparse voxels
At CVPR 2025, he coauthors Sparse Voxels Rasterization, which rasterizes adaptive sparse voxels to render radiance fields in real time.
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2025
Play4D streams free-viewpoint video
At SIGGRAPH Asia 2025, he coauthors Play4D, a free-viewpoint video streaming pipeline for virtual-reality and light-field displays.
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2026
Real-time light-field rendering
At HPG 2026, he coauthors a real-time renderer for radiance fields on light-field displays; it uses shared sweeping planes to compose many views in one pass.
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Since 2023
Research scientist at NVIDIA
He joins NVIDIA Research Taiwan as a research scientist in September 2023 and works in Taipei on 3D reconstruction and scene understanding.
Career
- Since 2023NVIDIAResearch scientist
Education
- 2023National Tsing Hua UniversityPhD
Sources and credits
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- Cheng Sun
- HorizonNet: Learning Room Layout with 1D Representation and Pano Stretch Data Augmentation
- Direct Voxel Grid Optimization: Super-Fast Convergence for Radiance Fields Reconstruction
- Sparse Voxels Rasterization: Real-time High-fidelity Radiance Field Rendering
- Play4D - SIGGRAPH Asia 2025 Emerging Technologies
- Real-time 3D Visualization of Radiance Fields on Light Field Displays
- Cheng Sun | NVIDIA Research Taiwan


