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Diffusion models have recently advanced photorealistic human synthesis, although practical talking-head generation (THG) remains constrained by high inference latency, temporal instability such as flicker and identity drift, and imperfect…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Soumya Mazumdar , Vineet Kumar Rakesh

Autoregressive visual generation models typically rely on tokenizers to compress images into tokens that can be predicted sequentially. A fundamental dilemma exists in token representation: discrete tokens enable straightforward modeling…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Yuqing Wang , Zhijie Lin , Yao Teng , Yuanzhi Zhu , Shuhuai Ren , Jiashi Feng , Xihui Liu

Diffusion transformers have emerged as the mainstream paradigm for video generation models. However, the use of up to billions of parameters incurs significant computational costs. Quantization offers a promising solution by reducing memory…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Weilun Feng , Haotong Qin , Chuanguang Yang , Xiangqi Li , Han Yang , Yuqi Li , Zhulin An , Libo Huang , Michele Magno , Yongjun Xu

The potential for higher-resolution image generation using pretrained diffusion models is immense, yet these models often struggle with issues of object repetition and structural artifacts especially when scaling to 4K resolution and…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Xinyu Liu , Yingqing He , Lanqing Guo , Xiang Li , Bu Jin , Peng Li , Yan Li , Chi-Min Chan , Qifeng Chen , Wei Xue , Wenhan Luo , Qifeng Liu , Yike Guo

On a finite time interval $(0,T)$, we consider the multiresolution Galerkin discretization of a modified Hilbert transform $\mathcal H_T$ which arises in the space-time Galerkin discretization of the linear diffusion equation. To this end,…

数值分析 · 数学 2025-06-05 Helmut Harbrecht , Christoph Schwab , Marco Zank

This publication extends the HoloTile framework to three dimensions, introducing the ability to generate arbitrary dynamic patterns composed of extended depth-of-field non-diffractive beamlets with theoretically 100% diffraction efficiency.…

光学 · 物理学 2024-06-03 Andreas Erik Gejl Madsen , Jesper Glückstad

We present a quantum computational framework using Hamiltonian Truncation (HT) for simulating real-time scattering processes in $(1+1)$-dimensional scalar $\phi^4$ theory. Unlike traditional lattice discretisation methods, HT approximates…

量子物理 · 物理学 2025-05-08 James Ingoldby , Michael Spannowsky , Timur Sypchenko , Simon Williams , Matthew Wingate

Diffusion models have emerged as the leading approach for image synthesis, demonstrating exceptional photorealism and diversity. However, training diffusion models at high resolutions remains computationally prohibitive, and existing…

计算机视觉与模式识别 · 计算机科学 2025-06-26 Tobias Vontobel , Seyedmorteza Sadat , Farnood Salehi , Romann M. Weber

Major progress on language models (LMs) in recent years has largely resulted from moving away from specialized models designed for specific tasks, to general models based on powerful architectures (e.g. the Transformer) that learn…

机器学习 · 计算机科学 2025-07-16 Sukjun Hwang , Brandon Wang , Albert Gu

Computer-generated holograms with their animated, three-dimensional appearance have long appealed to our imagination as the path towards truly immersive displays with bi-directional natural parallax. Impressive progress in updateable 3-D…

Deploying high-performing 3D medical image segmenters (e.g., nnU-Net) is often limited by memory footprint and inference latency. Compression is therefore necessary, but compact 3D encoders tend to lose fine structural cues (small lesions…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Mengchen Fan , Baocheng Geng , Xi Xiao , Tianyang Wang , Siyuan Mei , Pulin Che , Xiaoqian Jiang , Qizhen Lan

Recent attempts to interleave autoregressive (AR) sketchers with diffusion-based refiners over continuous speech representations have shown promise, but they remain brittle under distribution shift and offer limited levers for…

音频与语音处理 · 电气工程与系统科学 2025-10-17 Yakun Song , Xiaobin Zhuang , Jiawei Chen , Zhikang Niu , Guanrou Yang , Chenpeng Du , Dongya Jia , Zhuo Chen , Yuping Wang , Yuxuan Wang , Xie Chen

Anisotropic diffusion is a well recognized tool in digital image processing, including edge detection and denoising. We present here a particular nonlinear time-dependent operator together with an appropriate high-order discretization for…

数值分析 · 数学 2022-04-29 Lorella Fatone , Daniele Funaro

Text-to-image diffusion models can generate visually stunning images, yet, controlling what appears and how it appears, remains surprisingly difficult, especially when operating solely within the constraints of the text-conditioning space.…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Arani Roy , Shristi Das Biswas , Kaushik Roy

Dataset Distillation (DD) is designed to generate condensed representations of extensive image datasets, enhancing training efficiency. Despite recent advances, there remains considerable potential for improvement, particularly in…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Bowen Yuan , Zijian Wang , Mahsa Baktashmotlagh , Yadan Luo , Zi Huang

Developments in dynamical systems theory provides new support for the discretisation of \pde{}s and other microscale systems. By systematically resolving subgrid microscale dynamics the new approach constructs asymptotically accurate,…

数值分析 · 数学 2009-04-07 Tony MacKenzie , A. J. Roberts

Diffusion models achieve remarkable generation quality but suffer from computational intensive sampling due to suboptimal step discretization. While existing works focus on optimizing denoising directions, we address the principled design…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Jianning Pei , Han Hu , Shuyang Gu

Clustering of high-dimensional data sets is a growing need in artificial intelligence, machine learning and pattern recognition. In this paper, we propose a new clustering method based on a combinatorial-topological approach applied to…

机器学习 · 计算机科学 2025-03-12 Mauricio Toledo-Acosta , Luis Ángel Ramos-García , Jorge Hermosillo-Valadez

Inference in deep neural networks can be computationally expensive, and networks capable of anytime inference are important in mscenarios where the amount of compute or quantity of input data varies over time. In such networks the inference…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Adria Ruiz , Jakob Verbeek

With the rapid scaling of neural networks, data storage and communication demands have intensified. Dataset distillation has emerged as a promising solution, condensing information from extensive datasets into a compact set of synthetic…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Ali Abbasi , Shima Imani , Chenyang An , Gayathri Mahalingam , Harsh Shrivastava , Maurice Diesendruck , Hamed Pirsiavash , Pramod Sharma , Soheil Kolouri