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Synthetic datasets are often used to pretrain end-to-end optical flow networks, due to the lack of a large amount of labeled, real-scene data. But major drops in accuracy occur when moving from synthetic to real scenes. How do we better…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Zhiqi Zhang , Nitin Bansal , Changjiang Cai , Pan Ji , Qingan Yan , Xiangyu Xu , Yi Xu

This paper considers the generic problem of dense alignment between two images, whether they be two frames of a video, two widely different views of a scene, two paintings depicting similar content, etc. Whereas each such task is typically…

计算机视觉与模式识别 · 计算机科学 2020-07-20 Xi Shen , François Darmon , Alexei A. Efros , Mathieu Aubry

Learning non-rigid registration in an end-to-end manner is challenging due to the inherent high degrees of freedom and the lack of labeled training data. In this paper, we resolve these two challenges simultaneously. First, we propose to…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Wanquan Feng , Juyong Zhang , Hongrui Cai , Haofei Xu , Junhui Hou , Hujun Bao

Retinal Optical Coherence Tomography (OCT), a noninvasive cross-sectional scan of the eye with qualitative 3D visualization of the retinal anatomy is use to study the retinal structure and the presence of pathogens. The advent of the…

图像与视频处理 · 电气工程与系统科学 2023-02-28 Nchongmaje Ndipenoch , Alina Miron , Zidong Wang , Yongmin Li

The FFT of three-dimensional (3D) input data is an important computational kernel of numerical simulations and is widely used in High Performance Computing (HPC) codes running on a large number of processors. Performance of many scientific…

分布式、并行与集群计算 · 计算机科学 2020-08-28 Vivek Gavane , Supriya Prabhugawankar , Shivam Garg , Archana Achalere , Rajendra Joshi

Depth completion is crucial for many robotic tasks such as autonomous driving, 3-D reconstruction, and manipulation. Despite the significant progress, existing methods remain computationally intensive and often fail to meet the real-time…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Tianan Li , Zhehan Chen , Huan Liu , Chen Wang

Attention mechanisms, primarily designed to capture pairwise correlations between words, have become the backbone of machine learning, expanding beyond natural language processing into other domains. This growth in adaptation comes at the…

机器学习 · 计算机科学 2022-09-27 Sheng-Chun Kao , Suvinay Subramanian , Gaurav Agrawal , Amir Yazdanbakhsh , Tushar Krishna

Likelihood-based deep generative models have been widely investigated for Image Anomaly Detection (IAD), particularly Normalizing Flows, yet their strict architectural invertibility needs often constrain scalability, particularly in…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Liangwei Li , Lin Liu , Hanzhe Liang , Juanxiu Liu , Jing Zhang , Ruqian Hao , Xiaohui Du , Yong Liu , Pan Li

Graph-based Retrieval-Augmented Generation (RAG) systems leverage interconnected knowledge structures to capture complex relationships that flat retrieval struggles with, enabling multi-hop reasoning. Yet most existing graph-based methods…

Both optical flow and stereo disparities are image matches and can therefore benefit from joint training. Depth and 3D motion provide geometric rather than photometric information and can further improve optical flow. Accordingly, we design…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Shuai Yuan , Carlo Tomasi

We propose a new and completely data-driven approach for generating a photo-consistent image transform. We show that simple classical algorithms which operate in the transform domain become extremely resilient to illumination changes. This…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Damian Kaliroff , Guy Gilboa

We address the challenging problem of efficient inference across many devices and resource constraints, especially on edge devices. Conventional approaches either manually design or use neural architecture search (NAS) to find a specialized…

机器学习 · 计算机科学 2020-05-01 Han Cai , Chuang Gan , Tianzhe Wang , Zhekai Zhang , Song Han

Object reconstruction from 3D point clouds has been a long-standing research problem in computer vision and computer graphics, and achieved impressive progress. However, reconstruction from time-varying point clouds (a.k.a. 4D point clouds)…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Tuan-Anh Vu , Duc Thanh Nguyen , Binh-Son Hua , Quang-Hieu Pham , Sai-Kit Yeung

Handling distribution shifts from training data, known as out-of-distribution (OOD) generalization, poses a significant challenge in the field of machine learning. While a pre-trained vision-language model like CLIP has demonstrated…

计算机视觉与模式识别 · 计算机科学 2024-07-04 Bac Nguyen , Stefan Uhlich , Fabien Cardinaux , Lukas Mauch , Marzieh Edraki , Aaron Courville

Flow visualization technologies such as particle tracking velocimetry (PTV) are broadly used in understanding the all-pervasiveness three-dimensional (3D) turbulent flow from nature and industrial processes. Despite the advances in 3D…

流体动力学 · 物理学 2022-11-01 Jiaming Liang , Chao Xu , Shengze Cai

As neural networks are increasingly being applied to real-world applications, mechanisms to address distributional shift and sequential task learning without forgetting are critical. Methods incorporating network expansion have shown…

机器学习 · 计算机科学 2021-03-26 Vinay Kumar Verma , Kevin J Liang , Nikhil Mehta , Piyush Rai , Lawrence Carin

Large foundation models are becoming ubiquitous, but training them from scratch is prohibitively expensive. Thus, efficiently adapting these powerful models to downstream tasks is increasingly important. In this paper, we study a principled…

Flow models are effective at progressively generating realistic images, but they generally struggle to capture long-range dependencies during the generation process as they compress all the information from previous time steps into a single…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Mude Hui , Rui-Jie Zhu , Songlin Yang , Yu Zhang , Zirui Wang , Yuyin Zhou , Jason Eshraghian , Cihang Xie

Adapting vision transformer foundation models through parameter-efficient fine-tuning (PEFT) methods has become increasingly popular. These methods optimize a limited subset of parameters, enabling efficient adaptation without the need to…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Son Thai Ly , Hien V. Nguyen

Scene observation from multiple perspectives would bring a more comprehensive visual experience. However, in the context of acquiring multiple views in the dark, the highly correlated views are seriously alienated, making it challenging to…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Hao Luo , Baoliang Chen , Lingyu Zhu , Peilin Chen , Shiqi Wang