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Neural fields or implicit neural representations (INRs) have attracted significant attention in computer vision and imaging due to their efficient coordinate-based representation of images and 3D volumes. In this work, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 AmirEhsan Khorashadizadeh , Tobías I. Liaudat , Tianlin Liu , Jason D. McEwen , Ivan Dokmanić

Current methods for extracting intrinsic image components, such as reflectance and shading, primarily rely on statistical priors. These methods focus mainly on simple synthetic scenes and isolated objects and struggle to perform well on…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Yixiong Yang , Shilin Hu , Haoyu Wu , Ramon Baldrich , Dimitris Samaras , Maria Vanrell

Photoacoustic tomography (PAT) is a promising imaging technique that can visualize the distribution of chromophores within biological tissue. However, the accuracy of PAT imaging is compromised by light fluence (LF), which hinders the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-11 Zhaoyong Liang , Shuangyang Zhang , Zhichao Liang , Zhongxin Mo , Xiaoming Zhang , Yutian Zhong , Wufan Chen , Li Qi

Transient imaging or light-in-flight techniques capture the propagation of an ultra-short pulse of light through a scene, which in effect captures the optical impulse response of the scene. Recently, it has been shown that we can capture…

Computer Vision and Pattern Recognition · Computer Science 2015-12-22 Ryuichi Tadano , Adithya Kumar Pediredla , Kaushik Mitra , Ashok Veeraraghavan

Inverse rendering methods aim to estimate geometry, materials and illumination from multi-view RGB images. In order to achieve better decomposition, recent approaches attempt to model indirect illuminations reflected from different…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Haoqian Wu , Zhipeng Hu , Lincheng Li , Yongqiang Zhang , Changjie Fan , Xin Yu

Indirect Time of Flight LiDARs can indirectly calculate the scene's depth from the phase shift angle between transmitted and received laser signals with amplitudes modulated at a predefined frequency. Unfortunately, this method generates…

Robotics · Computer Science 2023-07-31 Mena Nagiub , Thorsten Beuth , Ganesh Sistu , Heinrich Gotzig , Ciarán Eising

Achieving the desired optical response from a multilayer thin-film structure over a broad range of wavelengths and angles of incidence can be challenging. An advanced thin-film structure can consist of multiple materials with different…

Computational Physics · Physics 2022-05-25 Alexander Luce , Ali Mahdavi , Florian Marquardt , Heribert Wankerl

The task of synthesizing novel views from a single image has useful applications in virtual reality and mobile computing, and a number of approaches to the problem have been proposed in recent years. A Multiplane Image (MPI) estimates the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Numair Khan , Douglas Lanman , Lei Xiao

The new generation of communication technologies are constantly being pushed to meet a diverse range of user requirements such as high data rate, low power consumption, very low latency, very high reliability and broad availability. To…

Information Theory · Computer Science 2022-02-15 Anil Yesilkaya , Harald Haas

We present a novel method to correct flying pixels within data captured by Time-of-flight (ToF) sensors. Flying pixel (FP) artifacts occur when signals from foreground and background objects reach the same sensor pixel, leading to a…

Image and Video Processing · Electrical Eng. & Systems 2024-10-11 Ekamresh Vasudevan , Shashank N. Sridhara , Eduardo Pavez , Antonio Ortega , Raghavendra Singh , Srinath Kalluri

In this work, we propose Image-to-Image Rectified Flow Reformulation (I2I-RFR), a practical plug-in reformulation that recasts standard I2I regression networks as continuous-time transport models. While pixel-wise I2I regression is simple,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Satoshi Iizuka , Shun Okamoto , Kazuhiro Fukui

A time-of-flight (ToF) imaging system is proposed and its working principle demonstrated. To realize this system, a new device, a free-space optical mixer, is designed and fabricated. A scene is illuminated (flashed) with a megahertz level…

Recently, the remarkable success of pre-trained Vision Transformers (ViTs) from image-text matching has sparked an interest in image-to-video adaptation. However, most current approaches retain the full forward pass for each frame, leading…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Guozhen Zhang , Jingyu Liu , Shengming Cao , Xiaotong Zhao , Kevin Zhao , Kai Ma , Limin Wang

3D Time-of-Flight (ToF) image sensors are used widely in applications such as self-driving cars, Augmented Reality (AR) and robotics. When implemented with Single-Photon Avalanche Diodes (SPADs), compact, array format sensors can be made…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Germán Mora Martín , Stirling Scholes , Alice Ruget , Robert K. Henderson , Jonathan Leach , Istvan Gyongy

The deep learning (DL)-based methods of low-level tasks have many advantages over the traditional camera in terms of hardware prospects, error accumulation and imaging effects. Recently, the application of deep learning to replace the image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Hongyang Chen , Kaisheng Ma

Time-of-flight cameras provide depth information, which is complementary to the photometric appearance of the scene in ordinary images. It is desirable to merge the depth and colour information, in order to obtain a coherent scene…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Miles Hansard , Georgios Evangelidis , Quentin Pelorson , Radu Horaud

Distributed deep learning (DDL) systems strongly depend on network performance. Current electronic packet switched (EPS) network architectures and technologies suffer from variable diameter topologies, low-bisection bandwidth and…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-27 Alessandro Ottino , Joshua Benjamin , Georgios Zervas

Time-of-flight (TOF) cameras are based on a new technology that delivers distance maps by the use of a modulated light source. In this paper we first describe a set of experiments that we performed with TOF cameras. We then propose a noise…

Data Analysis, Statistics and Probability · Physics 2007-05-23 Dragos Falie , Vasile Buzuloiu

Accurate reconstruction of 2D and 3D isotope densities is a desired capability with great potential impact in applications such as evaluation and development of next-generation nuclear fuels. Neutron time-of-flight (TOF) resonance imaging…

Image and Video Processing · Electrical Eng. & Systems 2023-09-13 Thilo Balke , Alexander M. Long , Sven C. Vogel , Brendt Wohlberg , Charles A. Bouman

Vision sensors are becoming more important in Intelligent Transportation Systems (ITS) for traffic monitoring, management, and optimization as the number of network cameras continues to rise. However, manual object tracking and matching…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Muhammad Imran Zaman , Usama Ijaz Bajwa , Gulshan Saleem , Rana Hammad Raza