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Thanks to its capability of acquiring full-view frames at multiple kilohertz, ultrafast ultrasound imaging unlocked the analysis of rapidly changing physical phenomena in the human body, with pioneering applications such as ultrasensitive…

图像与视频处理 · 电气工程与系统科学 2020-12-22 Dimitris Perdios , Manuel Vonlanthen , Florian Martinez , Marcel Arditi , Jean-Philippe Thiran

Although many studies have investigated markerless motion capture, the technology has not been applied to real sports or concerts. In this paper, we propose a markerless motion capture method with spatiotemporal accuracy and smoothness from…

计算机视觉与模式识别 · 计算机科学 2020-10-15 Takuya Ohashi , Yosuke Ikegami , Yoshihiko Nakamura

Accurate distance estimation from monocular cameras is essential for intelligent monitoring systems. In many deployments, image coordinates are mapped to ground positions using planar homographies initialized by manual selection of…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Mateusz Szulc , Marcin Iwanowski

We demonstrate pixelation-free real-time widefield endoscopic imaging through an aperiodic multicore fiber (MCF) without any distal opto-mechanical elements or proximal scanners. Exploiting the memory effect in MCFs the images in our system…

Camera pose refinement aims at improving the accuracy of initial pose estimation for applications in 3D computer vision. Most refinement approaches rely on 2D-3D correspondences with specific descriptors or dedicated networks, requiring…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Lulu Hao , Lipu Zhou , Zhenzhong Wei , Xu Wang

A number of problems in computer vision and related fields would be mitigated if camera spectral sensitivities were known. As consumer cameras are not designed for high-precision visual tasks, manufacturers do not disclose spectral…

图像与视频处理 · 电气工程与系统科学 2023-07-13 Grigory Solomatov , Derya Akkaynak

Multi-spectral sensors consisting of a standard (visible-light) camera and a long-wave infrared camera can simultaneously provide both visible and thermal images. Since thermal images are independent from environmental illumination, they…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Weichen Dai , Yu Zhang , Donglei Sun , Naira Hovakimyan , Ping Li

The increased sensitivity of future radio telescopes will result in requirements for higher dynamic range within the image as well as better resolution and immunity to interference. In this paper we propose a new matrix formulation of the…

天体物理学 · 物理学 2014-11-18 Chen Ben-David , Amir Leshem

Motivated by results on the mobility of mechanical devices called pentapods, this paper deals with a mathematically freestanding problem, which we call M\"obius Photogrammetry. Unlike traditional photogrammetry, which tries to recover a set…

代数几何 · 数学 2016-04-06 Matteo Gallet , Georg Nawratil , Josef Schicho

We propose a novel approach to jointly perform 3D shape retrieval and pose estimation from monocular images.In order to make the method robust to real-world image variations, e.g. complex textures and backgrounds, we learn an embedding…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Kyaw Zaw Lin , Weipeng Xu , Qianru Sun , Christian Theobalt , Tat-Seng Chua

Sparse-view reconstruction models typically require precise camera poses, yet obtaining these parameters from sparse-view images remains challenging. We introduce FreeSplatter, a scalable feed-forward framework that generates high-quality…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Jiale Xu , Shenghua Gao , Ying Shan

3-D pose estimation of instruments is a crucial step towards automatic scene understanding in robotic minimally invasive surgery. Although robotic systems can potentially directly provide joint values, this information is not commonly…

机器人学 · 计算机科学 2021-03-02 Luca Sestini , Benoit Rosa , Elena De Momi , Giancarlo Ferrigno , Nicolas Padoy

In the robotic industry, specular and textureless metallic components are ubiquitous. The 6D pose estimation of such objects with only a monocular RGB camera is difficult because of the absence of rich texture features. Furthermore, the…

机器人学 · 计算机科学 2020-11-03 Jiaming Hu , Hongyi Ling , Priyam Parashar , Aayush Naik , Henrik Christensen

Line scanning cameras, which capture only a single line of pixels, have been increasingly used in ground based mobile or robotic platforms. In applications where it is advantageous to directly georeference the camera data to world…

机器人学 · 计算机科学 2018-02-13 Alexander Wendel , James Underwood

Editing flat-looking images into stunning photographs requires skill and time. Automated image enhancement algorithms have attracted increased interest by generating high-quality images without user interaction. However, the quality…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Heewon Kim , Kyoung Mu Lee

With the rapid development of mobile devices, modern widely-used mobile phones typically allow users to capture 4K resolution (i.e., ultra-high-definition) images. However, for image demoireing, a challenging task in low-level vision,…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Xin Yu , Peng Dai , Wenbo Li , Lan Ma , Jiajun Shen , Jia Li , Xiaojuan Qi

We propose a novel pose estimation method for geometric vision of omni-directional cameras. On the basis of the regularity of the pixel movement after camera pose changes, we formulate and prove the sinusoidal relationship between pixels…

机器人学 · 计算机科学 2019-10-04 Haofei Kuang , Qingwen Xu , Xiaoling Long , Sören Schwertfeger

Recent development of Under-Display Camera (UDC) systems provides a true bezel-less and notch-free viewing experience on smartphones (and TV, laptops, tablets), while allowing images to be captured from the selfie camera embedded…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Ruicheng Feng , Chongyi Li , Huaijin Chen , Shuai Li , Chen Change Loy , Jinwei Gu

Real-time 3D reconstruction enables fast dense mapping of the environment which benefits numerous applications, such as navigation or live evaluation of an emergency. In contrast to most real-time capable approaches, our approach does not…

计算机视觉与模式识别 · 计算机科学 2021-04-22 Max Hermann , Boitumelo Ruf , Martin Weinmann

This work proposes for the first time to utilize the regular smartphone -- a popular assistive gadget -- to design a novel, non-invasive method for self-monitoring of one's hydration level on a scale of 1 to 4. The proposed method involves…

信号处理 · 电气工程与系统科学 2024-12-04 Rose Alaslani , Levina Perzhilla , Muhammad Mahboob Ur Rahman , Taous-Meriem Laleg-Kirati , Tareq Y. Al-Naffouri