arXiv Computer Vision

CARA: Collision-Aware Resolution Adaptation for Multiresolution Hash Encoding Based Image Fitting

CARA (Collision-Aware Resolution Adaptation) is a technique that dynamically assigns resolution levels in multiresolution hash encodings to balance information load across hash tables, thereby reducing hash collisions and improving parameter efficiency. It also introduces an invertible pixel‑shuffle transform to redistribute spatial information and lower hash load factors without enlarging tables. Experiments on Kodak images, gigapixel natural images, and a newly curated uncompressed whole‑slide image dataset show that CARA consistently enhances the fidelity‑parameter trade‑off, matching state‑of‑the‑art performance with only 27.76% of the parameters and achieving up to 6.11 dB PSNR improvement at comparable parameter counts.

arXiv Computer Vision
Sep 3

CC-4DGS: Computational Deformation and Point-Cloud Compression for Storage-Efficient Dynamic Gaussian Splatting

CC-4DGS introduces a storage‑efficient framework for dynamic 4D Gaussian splatting by replacing large multi‑resolution hash tables with a deterministic dense hash encoding and compact neural decoders, reducing deformation storage to 1–3 MB per scene. It also compresses canonical point‑cloud attributes through conditional autoencoding, selective quantization, and residual codebooks, achieving 3–5× reduction in point‑cloud size with negligible quality loss. The combined approach maintains real‑time rendering performance while lowering total storage to 20–30 MB, matching state‑of‑the‑art reconstruction accuracy on N3DV and Technicolor Light Field datasets.

By Kyungdae Park, Chae Eun Rhee
arXiv Computer Vision
Oct 9

BudgetPix: Compute-Adaptive Tokenization for Pixel-Space Image Diffusion

BudgetPix introduces a compute‑adaptive tokenization framework for pixel‑space image diffusion, dynamically allocating computational resources based on visual complexity and spatial layout. It comprises an adaptive encoder using an entropy‑guided quadtree and multi‑scale patch embedder, a scale‑aware decoder, and a flexible training schedule that allows pixel‑space denoisers to operate across variable token counts. The method integrates with existing diffusion architectures, achieving comparable fidelity to larger models while using only a fraction of the compute budget, and demonstrates improved quality‑efficiency tradeoffs in both text‑to‑image and class‑conditional generation.

By Ozgur Kara, Yujia Chen, Daniel Watson, David Forsyth, James Matthew Rehg, Wen-Sheng Chu, Du Tran
arXiv Computer Vision
Oct 23

GigaBench: Benchmarking Learnable Representations for Gigapixel Image Compression and Super-Resolution

GigaBench is the first benchmark designed to evaluate learnable representations (LRs) for gigapixel image compression and super‑resolution. It compiles a diverse set of gigapixel images—collected, acquired, and synthetically rendered—from various domains and tests representative LR methods (Implicit, Hybrid, and Explicit) on consumer hardware. The study systematically measures reconstruction quality, model size, compression, and inference times, revealing consistent trends and offering actionable guidance for future research.

By Matteo Fusconi, Alex Costanzino, Pierluigi Zama Ramirez, Luigi Di Stefano
Hugging Face Trending Papers
Aug 18

MoE-ViE: Mixture of Experts Vision Encoder for Efficient Image and Video Understanding

MoE-ViE introduces a Mixture-of-Experts vision encoder that scales efficiently for image and video understanding, outperforming dense counterparts across various sizes. The study shows fine‑grained MoE topologies provide significant gains, and proposes an auxiliary‑loss‑free balancing variant and a specialized MoE kernel to reduce inference latency. With frame‑level distillation and a novel freezing mechanism, the largest MoE‑ViE model matches state‑of‑the‑art zero‑shot performance while being 1.7× larger and 76% faster, and it outperforms other encoders when paired with a language model on both image and video benchmarks.

arXiv Computer Vision
Nov 2

Frequency-Adaptive Gaussian Grids for Efficient Image Representation

The paper introduces Gaussian-Grid, a hybrid neural representation that blends structured feature grids with unstructured 2D Gaussian distributions. It dynamically allocates computation based on local frequency content, enabling efficient image representation. Experiments on high‑resolution natural images show significant gains in decoding speed and PCIe data traffic reduction compared to JPEG + ZIP, while preserving small memory footprints and high reconstruction fidelity.

By Anatolii Evdokimov, Stavros Diolatzis, Bingxuan Li, Akshay Jindal, Patsorn Sangkloy, Qi Sun