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Discrete Flow-based Models (DFMs) are powerful generative models for high-quality discrete data but typically suffer from slow sampling speeds due to their reliance on iterative decoding processes. This reliance on a multi-step process…

Machine Learning · Computer Science 2025-10-21 Jaehoon Yoo , Wonjung Kim , Seunghoon Hong

Event cameras such as DAVIS can simultaneously output high temporal resolution events and low frame-rate intensity images, which own great potential in capturing scene motion, such as optical flow estimation. Most of the existing optical…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Zhexiong Wan , Yuchao Dai , Yuxin Mao

Video generation models have demonstrated remarkable performance, yet their broader adoption remains constrained by slow inference speeds and substantial computational costs, primarily due to the iterative nature of the denoising process.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Xin Zhou , Dingkang Liang , Kaijin Chen , Tianrui Feng , Xiwu Chen , Hongkai Lin , Yikang Ding , Feiyang Tan , Hengshuang Zhao , Xiang Bai

Rectified-Flow (RF)-based generative models have recently emerged as strong alternatives to traditional diffusion models, demonstrating state-of-the-art performance across various tasks. By learning a continuous velocity field that…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Chenru Wang , Beier Zhu , Chi Zhang

Diffusion Transformers currently lead the field in high-quality video generation, but their slow iterative denoising process and prohibitive quadratic attention costs for long sequences create significant inference bottlenecks. While both…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Youping Gu , Xiaolong Li , Yuhao Hu , Minqi Chen , Bohan Zhuang

Diffusion models have demonstrated remarkable success in generative tasks, yet their iterative denoising process results in slow inference, limiting their practicality. While existing acceleration methods exploit the well-known U-shaped…

Machine Learning · Statistics 2025-04-16 Zichao Yu , Zhen Zou , Guojiang Shao , Chengwei Zhang , Shengze Xu , Jie Huang , Feng Zhao , Xiaodong Cun , Wenyi Zhang

Vision-Language-Action (VLA) models, particularly diffusion-based architectures, demonstrate transformative potential for embodied intelligence but are severely hampered by high computational and memory demands stemming from extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Yantai Yang , Yuhao Wang , Zichen Wen , Luo Zhongwei , Chang Zou , Zhipeng Zhang , Chuan Wen , Linfeng Zhang

Most learning-based image compression methods lack efficiency for high image quality due to their non-invertible design. The decoding function of the frequently applied compressive autoencoder architecture is only an approximated inverse of…

Image and Video Processing · Electrical Eng. & Systems 2024-05-24 Marc Windsheimer , Fabian Brand , André Kaup

Variational autoencoders (VAEs) typically encode images into a compact latent space, reducing computational cost but introducing an optimization dilemma: a higher-dimensional latent space improves reconstruction fidelity but often hampers…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xunzhi Xiang , Xingye Tian , Guiyu Zhang , Yabo Chen , Shaofeng Zhang , Xuebo Wang , Xin Tao , Qi Fan

Existing video Variational Autoencoders (VAEs) generally overlook the similarity between frame contents, leading to redundant latent modeling. In this paper, we propose decoupled VAE (DeCo-VAE) to achieve compact latent representation.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Xiangchen Yin , Jiahui Yuan , Zhangchi Hu , Wenzhang Sun , Jie Chen , Xiaozhen Qiao , Hao Li , Xiaoyan Sun

Diffusion-based extreme image compression methods have achieved impressive performance at extremely low bitrates. However, constrained by the iterative denoising process that starts from pure noise, these methods are limited in both…

Image and Video Processing · Electrical Eng. & Systems 2025-05-27 Zhiyuan Li , Yanhui Zhou , Hao Wei , Chenyang Ge , Ajmal Mian

Enhancing the efficiency of high-quality image generation using Diffusion Models (DMs) is a significant challenge due to the iterative nature of the process. Flow Matching (FM) is emerging as a powerful generative modeling paradigm based on…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Pascal Zwick , Nils Friederich , Maximilian Beichter , Lennart Hilbert , Ralf Mikut , Oliver Bringmann

Vision Language Action (VLA) models are mainstream in embodied intelligence but face high inference costs. Edge-Cloud Collaborative (ECC) inference offers an effective fix by easing edge-device computing pressure to meet real-time needs.…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-13 Zihao Zheng , Sicheng Tian , Hangyu Cao , Chenyue Li , Jiayu Chen , Maoliang Li , Xinhao Sun , Hailong Zou , Guojie Luo , Xiang Chen

This investigation attempts to create an automated framework for fault detection and organization for usage in contemporary radiography, as per NDE 4.0. The review's goals are to address the lack of information that is sufficiently…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Aditya Sharma

Estimating optical flows is one of the most interesting problems in computer vision, which estimates the essential information about pixel-wise displacements between two consecutive images. This work introduces an efficient dual…

Optimization and Control · Mathematics 2021-10-05 Hongpeng Sun , Xue-Cheng Tai , Jing Yuan

In recent years, Vision-Language-Action (VLA) models have become a vital research direction in robotics due to their impressive multimodal understanding and generalization capabilities. Despite the progress, their practical deployment is…

Robotics · Computer Science 2025-06-17 Wenxuan Song , Jiayi Chen , Pengxiang Ding , Yuxin Huang , Han Zhao , Donglin Wang , Haoang Li

This paper presents a computationally efficient method for vehicle speed estimation from traffic camera footage. Building upon previous work that utilizes 3D bounding boxes derived from 2D detections and vanishing point geometry, we…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Andrej Macko , Lukáš Gajdošech , Viktor Kocur

State-of-the-art neural network models estimate large displacement optical flow in multi-resolution and use warping to propagate the estimation between two resolutions. Despite their impressive results, it is known that there are two…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Yao Lu , Jack Valmadre , Heng Wang , Juho Kannala , Mehrtash Harandi , Philip H. S. Torr

An important tool for experimental fluids mechanics research is Particle Image Velocimetry (PIV). Several robust methodologies have been proposed to perform the estimation of velocity field from the images, however, alternative methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Efraín Magaña , Francisco Sahli Costabal , Wernher Brevis

We propose to incorporate feature correlation and sequential processing into dense optical flow estimation from event cameras. Modern frame-based optical flow methods heavily rely on matching costs computed from feature correlation. In…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Mathias Gehrig , Mario Millhäusler , Daniel Gehrig , Davide Scaramuzza