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We present FastAvatar, a fast and robust algorithm for single-image 3D face reconstruction using 3D Gaussian Splatting (3DGS). Given a single input image from an arbitrary pose, FastAvatar recovers a high-quality, full-head 3DGS avatar in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Hao Liang , Zhixuan Ge , Soumendu Majee , Ashish Tiwari , G. M. Dilshan Godaliyadda , Ashok Veeraraghavan , Guha Balakrishnan

Recently, the integration of the efficient feed-forward scheme into 3D Gaussian Splatting (3DGS) has been actively explored. However, most existing methods focus on sparse view reconstruction of small regions and cannot produce eligible…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yunsong Wang , Tianxin Huang , Hanlin Chen , Gim Hee Lee

Streaming visual transformers like StreamVGGT achieve strong 3D perception but suffer from unbounded growth of key value (KV) memory, which limits scalability. We propose a training-free, inference-time token eviction policy that bounds…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Soroush Mahdi , Fardin Ayar , Ehsan Javanmardi , Manabu Tsukada , Mahdi Javanmardi

Large transformer models are proving to be a powerful tool for 3D vision and novel view synthesis. However, the standard Transformer's well-known quadratic complexity makes it difficult to scale these methods to large scenes. To address…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Tooba Imtiaz , Lucy Chai , Kathryn Heal , Xuan Luo , Jungyeon Park , Jennifer Dy , John Flynn

3D intelligence leverages rich 3D features and stands as a promising frontier in AI, with 3D rendering fundamental to many downstream applications. 3D Gaussian Splatting (3DGS), an emerging high-quality 3D rendering method, requires…

Graphics · Computer Science 2025-04-14 Sixu Li , Ben Keller , Yingyan Celine Lin , Brucek Khailany

Post-Training Quantization (PTQ) and Quantization-Aware Training (QAT) represent two mainstream model quantization approaches. However, PTQ often leads to unacceptable performance degradation in quantized models, while QAT imposes…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Xinhao Wang , Zhiwei Lin , Zhongyu Xia , Yongtao Wang

Recently, 3D Gaussian Splatting (3DGS) has emerged as a mainstream rendering technique due to its photorealistic quality and low latency. However, processing massive numbers of non-contributing Gaussian points introduces significant…

Hardware Architecture · Computer Science 2026-03-03 Wenhui Ou , Zhuoyu Wu , Yipu Zhang , Dongjun Wu , Freddy Ziyang Hong , Chik Patrick Yue

We propose 4DGT, a 4D Gaussian-based Transformer model for dynamic scene reconstruction, trained entirely on real-world monocular posed videos. Using 4D Gaussian as an inductive bias, 4DGT unifies static and dynamic components, enabling the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Zhen Xu , Zhengqin Li , Zhao Dong , Xiaowei Zhou , Richard Newcombe , Zhaoyang Lv

Post-training quantization (PTQ) efficiently compresses vision models, but unfortunately, it accompanies a certain degree of accuracy degradation. Reconstruction methods aim to enhance model performance by narrowing the gap between the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Lianwei Yang , Zhikai Li , Junrui Xiao , Haisong Gong , Qingyi Gu

Visual Geometry Grounded Transformers (VGGT) have set new benchmarks in high-fidelity 3D scene reconstruction. However, as the sequence length increases, these models suffer from catastrophic geometric forgetting and accumulation drift,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Tianchen Deng , Zhenxiang Xiong , Nailin Wang , Fangjinhua Wang , Jiuming Liu , Jianfei Yang , Hesheng Wang

Deploying Vision-Language Models (VLMs) on edge devices (e.g., smartphones and robots) is crucial for enabling low-latency and privacy-preserving intelligent applications. Given the resource constraints of these devices, quantization offers…

Computer Vision and Pattern Recognition · Computer Science 2025-11-13 Tianyu Guo , Shanwei Zhao , Shiai Zhu , Chenguang Ma

Vision-Language-Action (VLA) models have recently achieved remarkable progress in robotic perception and control, yet most existing approaches primarily rely on VLM trained using 2D images, which limits their spatial understanding and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Zhifeng Rao , Wenlong Chen , Lei Xie , Xia Hua , Dongfu Yin , Zhen Tian , F. Richard Yu

We propose R3GS, a robust reconstruction and relocalization framework tailored for unconstrained datasets. Our method uses a hybrid representation during training. Each anchor combines a global feature from a convolutional neural network…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Xu yan , Zhaohui Wang , Rong Wei , Jingbo Yu , Dong Li , Xiangde Liu

Recent advances in 3D Gaussian Splatting (3DGS) have enabled real-time, photorealistic scene reconstruction. However, conventional 3DGS frameworks typically rely on sparse point clouds derived from Structure-from-Motion (SfM), which…

Graphics · Computer Science 2026-03-25 Yan Fang , Jianfei Ge , Jiangjian Xiao

The emergence of fine-grained numerical formats like NVFP4 presents new opportunities for efficient Large Language Model (LLM) inference. However, it is difficult to adapt existing Post-Training Quantization (PTQ) strategies to these…

Machine Learning · Computer Science 2026-01-13 Haoqian Meng , Yilun Luo , Yafei Zhao , Wenyuan Liu , Peng Zhang , Xindian Ma

The rapid progress of large, pretrained models for both visual content generation and 3D reconstruction opens up new possibilities for text-to-3D generation. Intuitively, one could obtain a formidable 3D scene generator if one were able to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Hyojun Go , Dominik Narnhofer , Goutam Bhat , Prune Truong , Federico Tombari , Konrad Schindler

The de novo generation of molecules with desirable properties is a critical challenge, where diffusion models are computationally intensive and autoregressive models struggle with error propagation. In this work, we introduce the Graph…

Machine Learning · Computer Science 2025-12-03 Haozhuo Zheng , Cheng Wang , Yang Liu

We introduce GPTAQ, a novel finetuning-free quantization method for compressing large-scale transformer architectures. Unlike the previous GPTQ method, which independently calibrates each layer, we always match the quantized layer's output…

Machine Learning · Computer Science 2025-05-15 Yuhang Li , Ruokai Yin , Donghyun Lee , Shiting Xiao , Priyadarshini Panda

The rapid growth of visual data under stringent storage and bandwidth constraints makes extremely low-bitrate image compression increasingly important. While Vector Quantization (VQ) offers strong structural fidelity, existing methods lack…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Shiyin Jiang , Wei Long , Minghao Han , Zhenghao Chen , Ce Zhu , Shuhang Gu

Recently, end-to-end robotic manipulation models have gained significant attention for their generalizability and scalability. However, they often suffer from limited robustness to camera viewpoint changes when training with a fixed camera.…

Robotics · Computer Science 2026-04-24 Songen Gu , Yuhang Zheng , Weize Li , Yupeng Zheng , Yating Feng , Xiang Li , Yilun Chen , Pengfei Li , Wenchao Ding