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We propose a convolutional neural network (ConvNet) based approach for learning local image descriptors which can be used for significantly improved patch matching and 3D reconstructions. A multi-resolution ConvNet is used for learning…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Rahul Mitra , Jiakai Zhang , Sanath Narayan , Shuaib Ahmed , Sharat Chandran , Arjun Jain

This paper presents a novel CNN-based approach for synthesizing high-resolution LiDAR point cloud data. Our approach generates semantically and perceptually realistic results with guidance from specialized loss-functions. First, we utilize…

Image and Video Processing · Electrical Eng. & Systems 2021-09-27 Larissa T. Triess , David Peter , Christoph B. Rist , Markus Enzweiler , J. Marius Zöllner

Visual tokenizers play a crucial role in diffusion models. The dimensionality of latent space governs both reconstruction fidelity and the semantic expressiveness of the latent feature. However, a fundamental trade-off is inherent between…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Qingyu Shi , Size Wu , Jinbin Bai , Kaidong Yu , Yujing Wang , Yunhai Tong , Xiangtai Li , Xuelong Li

Scene flow estimation determines a scene's 3D motion field, by predicting the motion of points in the scene, especially for aiding tasks in autonomous driving. Many networks with large-scale point clouds as input use voxelization to create…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Qingwen Zhang , Yi Yang , Heng Fang , Ruoyu Geng , Patric Jensfelt

In this paper, we introduce a novel approach for autonomous driving trajectory generation by harnessing the complementary strengths of diffusion probabilistic models (a.k.a., diffusion models) and transformers. Our proposed framework,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Chen Yang , Yangfan He , Aaron Xuxiang Tian , Dong Chen , Jianhui Wang , Tianyu Shi , Arsalan Heydarian , Pei Liu

Traditional discriminative computer vision relies predominantly on static projections, mapping input features to outputs in a single computational step. Although efficient, this paradigm lacks the iterative refinement and robustness…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Om Govind Jha , Manoj Bamniya , Ayon Borthakur

Deepfakes are the synthesized digital media in order to create ultra-realistic fake videos to trick the spectator. Deep generative algorithms, such as, Generative Adversarial Networks(GAN) are widely used to accomplish such tasks. This…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Pallabi Saikia , Dhwani Dholaria , Priyanka Yadav , Vaidehi Patel , Mohendra Roy

The scarcity of publicly available medical imaging data limits the development of effective AI models. This work proposes a memory-efficient patch-wise denoising diffusion probabilistic model (DDPM) for generating synthetic medical images,…

Image and Video Processing · Electrical Eng. & Systems 2024-10-17 Kathrin Khadra , Utku Türkbey

Convolutional neural networks (CNNs) have recently been very successful in a variety of computer vision tasks, especially on those linked to recognition. Optical flow estimation has not been among the tasks where CNNs were successful. In…

Computer Vision and Pattern Recognition · Computer Science 2015-06-18 Philipp Fischer , Alexey Dosovitskiy , Eddy Ilg , Philip Häusser , Caner Hazırbaş , Vladimir Golkov , Patrick van der Smagt , Daniel Cremers , Thomas Brox

The ability to generate virtual environments is crucial for applications ranging from gaming to physical AI domains such as robotics, autonomous driving, and industrial AI. Current learning-based 3D reconstruction methods rely on the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Sherwin Bahmani , Tianchang Shen , Jiawei Ren , Jiahui Huang , Yifeng Jiang , Haithem Turki , Andrea Tagliasacchi , David B. Lindell , Zan Gojcic , Sanja Fidler , Huan Ling , Jun Gao , Xuanchi Ren

In this paper, we propose a two-stage sketch-based smoke illustration generation framework using stream function and latent diffusion models (LDM). The user sketch is used to guide the generation of the stream function, which serves as the…

Graphics · Computer Science 2025-10-21 Hengyuan Chang , Xiaoxuan Xie , Syuhei Sato , Haoran Xie

The use of deep learning methods for modeling fluid flow has drawn a lot of attention in the past few years. In situations where conventional numerical approaches can be computationally expensive, these techniques have shown promise in…

Training deep learning methods on small time series datasets that also include corrupted samples is challenging. Diffusion models have shown to be effective to generate realistic and synthetic data, and correct corrupted samples through…

Machine Learning · Computer Science 2025-09-17 Julian Ripper , Ousama Esbel , Rafael Fietzek , Max Mühlhäuser , Thomas Kreutz

Traditional fluid flow predictions require large computational resources. Despite recent progress in parallel and GPU computing, the ability to run fluid flow predictions in real-time is often infeasible. Recently developed machine learning…

Fluid Dynamics · Physics 2021-06-08 Y. van Halder , B. Sanderse , B. Koren

Computational fluid dynamics (CFD) is a powerful tool for modeling turbulent flow and is commonly used for urban microclimate simulations. However, traditional CFD methods are computationally intensive, requiring substantial hardware…

Diffusion models have achieved remarkable success in image and video generation. In this work, we demonstrate that diffusion models can also \textit{generate high-performing neural network parameters}. Our approach is simple, utilizing an…

Machine Learning · Computer Science 2025-01-03 Kai Wang , Dongwen Tang , Boya Zeng , Yida Yin , Zhaopan Xu , Yukun Zhou , Zelin Zang , Trevor Darrell , Zhuang Liu , Yang You

Deep neural networks are being increasingly used for short-term traffic flow prediction, which can be generally categorized as convolutional (CNNs) or graph neural networks (GNNs). CNNs are preferable for region-wise traffic prediction by…

Physics and Society · Physics 2021-10-12 Wei Zeng , Chengqiao Lin , Kang Liu , Juncong Lin , Anthony K. H. Tung

Deep neural network (DNN)-based algorithms are emerging as an important tool for many physical and MAC layer functions in future wireless communication systems, including for large multi-antenna channels. However, training such models…

Information Theory · Computer Science 2025-10-17 Taekyun Lee , Juseong Park , Hyeji Kim , Jeffrey G. Andrews

Machine learning offers an intriguing alternative to first-principles analysis for discovering new physics from experimental data. However, to date, purely data-driven methods have only proven successful in uncovering physical laws…

We propose an end-to-end trained neural networkarchitecture to robustly predict the complex dynamics of fluid flows with high temporal stability. We focus on single-phase smoke simulations in 2D and 3D based on the incompressible…

Graphics · Computer Science 2020-03-20 Steffen Wiewel , Byungsoo Kim , Vinicius C. Azevedo , Barbara Solenthaler , Nils Thuerey