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Passive non-line-of-sight imaging methods are often faster and stealthier than their active counterparts, requiring less complex and costly equipment. However, many of these methods exploit motion of an occluder or the hidden scene, or…

图像与视频处理 · 电气工程与系统科学 2026-03-12 Sheila W. Seidel , John Murray-Bruce , Yanting Ma , Christopher Yu , William T. Freeman , Vivek K Goyal

Reconstructing compositional 3D representations of scenes, where each object is represented with its own 3D model, is a highly desirable capability in robotics and augmented reality. However, most existing methods rely heavily on strong…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Vincent van der Brugge , Marc Pollefeys , Joshua B. Tenenbaum , Ayush Tewari , Krishna Murthy Jatavallabhula

Low light images captured in a non-uniform illumination environment usually are degraded with the scene depth and the corresponding environment lights. This degradation results in severe object information loss in the degraded image…

计算机视觉与模式识别 · 计算机科学 2020-08-03 Xin Xu , Shiqin Wang , Zheng Wang , Xiaolong Zhang , Ruimin Hu

There is a general expectation that robots should operate in environments that consist of static and dynamic entities including people, furniture and automobiles. These dynamic environments pose challenges to visual simultaneous…

机器人学 · 计算机科学 2020-03-26 Pushyami Kaveti , Sammie Katt , Hanumant Singh

Non-line-of-sight (NLOS) imaging and tracking is an emerging technology that allows the shape or position of objects around corners or behind diffusers to be recovered from transient, time-of-flight measurements. However, existing NLOS…

计算机视觉与模式识别 · 计算机科学 2021-01-06 Christopher A. Metzler , David B. Lindell , Gordon Wetzstein

While data has certainly taken the center stage in computer vision in recent years, it can still be difficult to obtain in certain scenarios. In particular, acquiring ground truth 3D shapes of objects pictured in 2D images remains a…

计算机视觉与模式识别 · 计算机科学 2016-08-02 Joao Carreira , Sara Vicente , Lourdes Agapito , Jorge Batista

We present a novel method for recovering the absolute pose and shape of a human in a pre-scanned scene given a single image. Unlike previous methods that perform sceneaware mesh optimization, we propose to first estimate absolute position…

计算机视觉与模式识别 · 计算机科学 2023-06-07 Zehong Shen , Zhi Cen , Sida Peng , Qing Shuai , Hujun Bao , Xiaowei Zhou

3D object detection from multi-view images in traffic scenarios has garnered significant attention in recent years. Many existing approaches rely on object queries that are generated from 3D reference points to localize objects. However, a…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Ziyu Wang , Wenhao Li , Ji Wu

Recognition of occluded objects in unseen indoor environments is a challenging problem for mobile robots. This work proposes a new slicing-based topological descriptor that captures the 3D shape of object point clouds to address this…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Ekta U. Samani , Ashis G. Banerjee

Conventional imaging only records photons directly sent from the object to the detector, while non-line-of-sight (NLOS) imaging takes the indirect light into account. Most NLOS solutions employ a transient scanning process, followed by a…

计算机视觉与模式识别 · 计算机科学 2021-03-29 Dayu Zhu , Wenshan Cai

This paper introduces a novel weighted unsupervised learning for object detection using an RGB-D camera. This technique is feasible for detecting the moving objects in the noisy environments that are captured by an RGB-D camera. The main…

计算机视觉与模式识别 · 计算机科学 2018-10-24 Kamran Kowsari , Manal H. Alassaf

Flash illumination is widely used in imaging under low-light environments. However, illumination intensity falls off with propagation distance quadratically, which poses significant challenges for flash imaging at a long distance. We…

图像与视频处理 · 电气工程与系统科学 2022-07-27 Zhanghao Sun , Jian Wang , Yicheng Wu , Shree Nayar

Visual (re)localization addresses the problem of estimating the 6-DoF (Degree of Freedom) camera pose of a query image captured in a known scene, which is a key building block of many computer vision and robotics applications. Recent…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Siyan Dong , Shuzhe Wang , Yixin Zhuang , Juho Kannala , Marc Pollefeys , Baoquan Chen

In a human-robot collaborative task where a robot helps its partner by finding described objects, the depth dimension plays a critical role in successful task completion. Existing studies have mostly focused on comprehending the object…

机器人学 · 计算机科学 2021-07-13 Fethiye Irmak Dogan , Iolanda Leite

We consider the challenging problem of outdoor lighting estimation for the goal of photorealistic virtual object insertion into photographs. Existing works on outdoor lighting estimation typically simplify the scene lighting into an…

计算机视觉与模式识别 · 计算机科学 2022-08-22 Zian Wang , Wenzheng Chen , David Acuna , Jan Kautz , Sanja Fidler

The quality of life of many people could be improved by autonomous humanoid robots in the home. To function in the human world, a humanoid household robot must be able to locate itself and perceive the environment like a human; scene…

计算机视觉与模式识别 · 计算机科学 2013-01-24 Cheng Zhang , Hedvig Kjellstrom

Defocus blur arises in images that are captured with a shallow depth of field due to the use of a wide aperture. Correcting defocus blur is challenging because the blur is spatially varying and difficult to estimate. We propose an effective…

图像与视频处理 · 电气工程与系统科学 2020-07-20 Abdullah Abuolaim , Michael S. Brown

Real-time moving object detection in unconstrained scenes is a difficult task due to dynamic background, changing foreground appearance and limited computational resource. In this paper, an optical flow based moving object detection…

计算机视觉与模式识别 · 计算机科学 2018-07-16 Junjie Huang , Wei Zou , Jiagang Zhu , Zheng Zhu

Object counting and localization are key steps for quantitative analysis in large-scale microscopy applications. This procedure becomes challenging when target objects are overlapping, are densely clustered, and/or present fuzzy boundaries.…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Shijie Li , Thomas Ach , Guido Gerig

3D object detection has been wildly studied in recent years, especially for robot perception systems. However, existing 3D object detection is under a closed-set condition, meaning that the network can only output boxes of trained classes.…

计算机视觉与模式识别 · 计算机科学 2021-12-03 Jun Cen , Peng Yun , Junhao Cai , Michael Yu Wang , Ming Liu