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Two types of framework for blurred image classification based on adaptive dictionary are proposed. Given a blurred image, instead of image deblurring, the semantic category of the image is determined by blur insensitive sparse coefficients…

计算机视觉与模式识别 · 计算机科学 2013-07-30 Guangling Sun , Guoqing Li , Jie Yin

We propose DistSurf-OF, a novel optical flow method for neuromorphic cameras. Neuromorphic cameras (or event detection cameras) are an emerging sensor modality that makes use of dynamic vision sensors (DVS) to report asynchronously the…

图像与视频处理 · 电气工程与系统科学 2020-03-31 Mohammed Almatrafi , Raymond Baldwin , Kiyoharu Aizawa , Keigo Hirakawa

3D scene flow estimation is a vital tool in perceiving our environment given depth or range sensors. Unlike optical flow, the data is usually sparse and in most cases partially occluded in between two temporal samplings. Here we propose a…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Bojun Ouyang , Dan Raviv

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…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Zhexiong Wan , Yuchao Dai , Yuxin Mao

Image deraining is crucial for vision applications but is challenged by the complex multi-scale physics of rain and its coupling with scenes. To address this challenge, a novel approach inspired by multi-stage image restoration is proposed,…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Jiayu Wang , Haoyu Bian , Haoran Sun , Shaoning Zeng

The quality of microscopy images often suffers from optical aberrations. These aberrations and their associated point spread functions have to be quantitatively estimated to restore aberrated images. The recent state-of-the-art method…

图像与视频处理 · 电气工程与系统科学 2022-11-22 Kira Vinogradova , Eugene W. Myers

Consistency Guided Scene Flow Estimation (CGSF) is a self-supervised framework for the joint reconstruction of 3D scene structure and motion from stereo video. The model takes two temporal stereo pairs as input, and predicts disparity and…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Yuhua Chen , Luc Van Gool , Cordelia Schmid , Cristian Sminchisescu

It is hard to estimate optical flow given a realworld video sequence with camera shake and other motion blur. In this paper, we first investigate the blur parameterization for video footage using near linear motion elements. we then combine…

计算机视觉与模式识别 · 计算机科学 2016-03-08 Wenbin Li , Yang Chen , JeeHang Lee , Gang Ren , Darren Cosker

Video deblurring is a challenging problem as the blur is complex and usually caused by the combination of camera shakes, object motions, and depth variations. Optical flow can be used for kernel estimation since it predicts motion…

计算机视觉与模式识别 · 计算机科学 2017-08-14 Wenqi Ren , Jinshan Pan , Xiaochun Cao , Ming-Hsuan Yang

State-of-the-art scene flow algorithms pursue the conflicting targets of accuracy, run time, and robustness. With the successful concept of pixel-wise matching and sparse-to-dense interpolation, we push the limits of scene flow estimation.…

计算机视觉与模式识别 · 计算机科学 2019-10-30 René Schuster , Oliver Wasenmüller , Christian Unger , Georg Kuschk , Didier Stricker

We consider the high-resolution imaging problem of 3D point source image recovery from 2D data using a method based on point spread function (PSF) engineering. The method involves a new technique, recently proposed by S.~Prasad, based on…

信号处理 · 电气工程与系统科学 2019-06-13 Chao Wang , Raymond Chan , Mila Nikolova , Robert Plemmons , Sudhakar Prasad

Scene flow is the three-dimensional (3D) motion field of a scene. It provides information about the spatial arrangement and rate of change of objects in dynamic environments. Current learning-based approaches seek to estimate the scene flow…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Jhony Kaesemodel Pontes , James Hays , Simon Lucey

This paper presents a framework for developing a live vision-correcting display (VCD) to address refractive visual aberrations without the need for traditional vision correction devices like glasses or contact lenses, particularly in…

图像与视频处理 · 电气工程与系统科学 2025-01-06 Akhilesh Balaji , Dhruv Ramu

Rectified flow models have become a de facto standard in image generation due to their stable sampling trajectories and high-fidelity outputs. Despite their strong generative capabilities, they face critical limitations in image editing…

计算机视觉与模式识别 · 计算机科学 2025-10-31 Sung-Hoon Yoon , Minghan Li , Gaspard Beaudouin , Congcong Wen , Muhammad Rafay Azhar , Mengyu Wang

Event-based motion field estimation is an important task. However, current optical flow methods face challenges: learning-based approaches, often frame-based and relying on CNNs, lack cross-domain transferability, while model-based methods,…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Dehao Yuan , Levi Burner , Jiayi Wu , Minghui Liu , Jingxi Chen , Yiannis Aloimonos , Cornelia Fermüller

Neural Scene Flow Prior (NSFP) and Fast Neural Scene Flow (FNSF) have shown remarkable adaptability in the context of large out-of-distribution autonomous driving. Despite their success, the underlying reasons for their astonishing…

计算机视觉与模式识别 · 计算机科学 2024-03-26 Dongrui Liu , Daqi Liu , Xueqian Li , Sihao Lin , Hongwei xie , Bing Wang , Xiaojun Chang , Lei Chu

Point-spread-function (PSF) engineering is a powerful computational imaging techniques wherein a custom phase mask is integrated into an optical system to encode additional information into captured images. Used in combination with deep…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Sachin Shah , Sakshum Kulshrestha , Christopher A. Metzler

The Point Spread Function (PSF) is a key figure of merit for specifying the angular resolution of optical systems and, as the demand for higher and higher angular resolution increases, the problem of surface finishing must be taken…

天体物理仪器与方法 · 物理学 2016-10-04 K. Tayabaly , D. Spiga , G. Sironi , R. Canestrari , M. Lavagna , G. Pareschi

We tackle the problem of estimating flow between two images with large lighting variations. Recent learning-based flow estimation frameworks have shown remarkable performance on image pairs with small displacement and constant…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Zhaoyang Huang , Xiaokun Pan , Runsen Xu , Yan Xu , Ka chun Cheung , Guofeng Zhang , Hongsheng Li

Access to knowledge of the point spread function (PSF) of adaptive optics(AO)-assisted observations is still a major limitation when processing AO data. This limitation is particularly important when image analysis requires the use of…

天体物理仪器与方法 · 物理学 2023-05-10 A. Lau , R. JL. Fétick , B. Neichel , O. Beltramo-Martin , T. Fusco