English
Related papers

Related papers: Joint Depth and Normal Estimation from Real-world …

200 papers

Depth estimation is an essential component in understanding the 3D geometry of a scene, with numerous applications in urban and indoor settings. These scenes are characterized by a prevalence of human made structures, which in most of the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-03 Mattia Rossi , Mireille El Gheche , Andreas Kuhn , Pascal Frossard

Plasma profiling time of flight mass spectrometry (PP-TOFMS) has recently gained interest, as it enables the elemental profiling of semiconductor structures with high depth resolution in short acquisition times. As recently shown by Tempez…

One use of image processing is for medical equipment such as wound identification. This technology is carried out non-invasively by taking images so as to avoid direct touch with the wound thereby reducing the possibility of infection. The…

Computational Physics · Physics 2025-04-08 S. B. Wibowo , A. A. Nugroho , L. Awaludin , L. Hidayat

The low-quality structure in raw depth maps is prevalent in real-world RGB-D datasets, which makes real-world depth recovery a critical task in recent years. However, the lack of paired raw-ground truth (raw-GT) data in the real world poses…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Delong Suzhang , Meng Yang

Medical ultrasound provides images which are the spatial map of the tissue echogenicity. Unfortunately, an ultrasound image is a low-quality version of the expected Tissue Reflectivity Function (TRF) mainly due to the non-ideal Point Spread…

Image and Video Processing · Electrical Eng. & Systems 2021-09-28 Sobhan Goudarzi , Hassan Rivaz

Depth Estimation and Object Detection Recognition play an important role in autonomous driving technology under the guidance of deep learning artificial intelligence. We propose a hybrid structure called RealNet: a co-design method…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Zhuohao Li , Fandi Gou , Qixin De , Leqi Ding , Yuanhang Zhang , Yunze Cai

This work presents an accurate and robust method for estimating normals from point clouds. In contrast to predecessor approaches that minimize the deviations between the annotated and the predicted normals directly, leading to direction…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Yingrui Wu , Mingyang Zhao , Keqiang Li , Weize Quan , Tianqi Yu , Jianfeng Yang , Xiaohong Jia , Dong-Ming Yan

This paper proposes a fast and accurate surface normal estimation method which can be directly used on depth maps (organized point clouds). The surface normal estimation process is formulated as a closed-form expression. In order to reduce…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Saed Moradi , Alireza Memarmoghadam , Denis Laurendeau

Two major challenges in time-of-flight positron emission tomography (TOF-PET) are low spatial resolution and high radioactive dose to the patient, both of which result from limitations in detection technology rather than fundamental…

Range images captured by Time-of-Flight (ToF) cameras are corrupted with multipath distortions due to interaction between modulated light signals and scenes. The interaction is often complicated, which makes a model-based solution elusive.…

Computer Vision and Pattern Recognition · Computer Science 2016-02-24 Kilho Son , Ming-Yu Liu , Yuichi Taguchi

Modern LiDAR sensors find increasing use in safety-critical applications. Therefore, highly accurate modeling of the system's behavior under demanding environmental conditions is necessary. In this paper, we present a modular structure to…

Instrumentation and Detectors · Physics 2022-08-09 Maximilian Fink , Michael Schardt , Valentin Baier , Kun Wang , Martin Jakobi , Alexander W. Koch

We propose a novel compressed sensing method to improve the depth reconstruction accuracy and multi-target separation capability of indirect Time-of-Flight (iToF) systems. Unlike traditional approaches that rely on hardware modifications,…

Signal Processing · Electrical Eng. & Systems 2025-07-29 Yansong Du , Yutong Deng , Yuting Zhou , Feiyu Jiao , Bangyao Wang , Zhancong Xu , Zhaoxiang Jiang , Xun Guan

Simulating realistic radar data has the potential to significantly accelerate the development of data-driven approaches to radar processing. However, it is fraught with difficulty due to the notoriously complex image formation process. Here…

Robotics · Computer Science 2020-12-01 Rob Weston , Oiwi Parker Jones , Ingmar Posner

In the past ten years, the use of 3D Time-of-Flight (ToF) LiDARs in mobile robotics has grown rapidly. Based on our accumulation of relevant research, this article systematically reviews and analyzes the use 3D ToF LiDARs in research and…

Robotics · Computer Science 2022-02-23 Tao Yang , You Li , Cheng Zhao , Dexin Yao , Guanyin Chen , Li Sun , Tomas Krajnik , Zhi Yan

Depth completion and object detection are two crucial tasks often used for aerial 3D mapping, path planning, and collision avoidance of Uncrewed Aerial Vehicles (UAVs). Common solutions include using measurements from a LiDAR sensor;…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Sara Hatami Gazani , Fardad Dadboud , Miodrag Bolic , Iraj Mantegh , Homayoun Najjaran

Low-overlap aerial imagery poses significant challenges to traditional photogrammetric methods, which rely heavily on high image overlap to produce accurate and complete mapping products. In this study, we propose a novel workflow based on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Jiageng Zhong , Qi Zhou , Ming Li , Armin Gruen , Xuan Liao

We have developed a novel detector, referred to as an "$\alpha$-ToF detector", for correlated measurements of atomic masses and decay properties of low-yield, short-lived radioactive isotopes using a multi-reflection time-of-flight mass…

Instrumentation and Detectors · Physics 2020-01-08 T. Niwase , M. Wada , P. Schury , H. Haba , S. Ishizawa , Y. Ito , D. Kaji , S. Kimura , H. Miyatake , K. Morimoto , K. Morita , M. Rosenbusch , H. Wollnik , T. Shanley , Y. Benari

Aerial scene understanding systems face stringent payload restrictions and must often rely on monocular depth estimation for modeling scene geometry, which is an inherently ill-posed problem. Moreover, obtaining accurate ground truth data…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Horatiu Florea , Sergiu Nedevschi

Mask-based lensless cameras replace the lens of a conventional camera with a custom mask. These cameras can potentially be very thin and even flexible. Recently, it has been demonstrated that such mask-based cameras can recover light…

Image and Video Processing · Electrical Eng. & Systems 2020-06-22 Yucheng Zheng , M. Salman Asif

The use of Time Of Flight (TOF) in Positron Emission Tomography (PET) is expected to reduce noise on images, thanks to the additional information. In clinical routine, a common reconstruction approach is the use of maximum likelihood…

Medical Physics · Physics 2019-10-16 Luca Presotto , Elisabetta De Bernardi , Valentino Bettinardi