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Chris G. Willcocks

5 accepted papers

2024

$\infty$-Diff: Infinite Resolution Diffusion with Subsampled Mollified States

ICLR 2024poster

This paper introduces $\infty$-Diff, a generative diffusion model defined in an infinite-dimensional Hilbert space, which can model infinite resolution data. By training on randomly sampled subsets of coordinates and denoising content only at those locations, we learn a continuous function for arbit…

2023

Exact-NeRF: An Exploration of a Precise Volumetric Parameterization for Neural Radiance Fields

CVPR 2023poster

Neural Radiance Fields (NeRF) have attracted significant attention due to their ability to synthesize novel scene views with great accuracy. However, inherent to their underlying formulation, the sampling of points along a ray with zero width may result in ambiguous representations that lead to furt…

2023

Unaligned 2D to 3D Translation with Conditional Vector-Quantized Code Diffusion using Transformers

ICCV 2023poster

Generating 3D images of complex objects conditionally from a few 2D views is a difficult synthesis problem, compounded by issues such as domain gap and geometric misalignment. For instance, a unified framework such as Generative Adversarial Networks cannot achieve this unless they explicitly define…

Cited by 7PDFcodeScholar
2022

Unleashing Transformers: Parallel Token Prediction with Discrete Absorbing Diffusion for Fast High-Resolution Image Generation from Vector-Quantized Codes

ECCV 2022poster

"Whilst diffusion probabilistic models can generate high quality image content, key limitations remain in terms of both generating high-resolution imagery and their associated high computational requirements. Recent Vector-Quantized image models have overcome this limitation of image resolution but…