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Ground-penetrating radar (GPR) has been used as a non-destructive tool for tree root inspection. Estimating root-related parameters from GPR radargrams greatly facilitates root health monitoring and imaging. However, the task of estimating…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Hai-Han Sun , Yee Hui Lee , Qiqi Dai , Chongyi Li , Genevieve Ow , Mohamed Lokman Mohd Yusof , Abdulkadir C. Yucel

Transparent and reflective objects in everyday environments pose significant challenges for depth sensors due to their unique visual properties, such as specular reflections and light transmission. These characteristics often lead to…

Robotics · Computer Science 2025-06-12 Guanghu Xie , Zhiduo Jiang , Yonglong Zhang , Yang Liu , Zongwu Xie , Baoshi Cao , Hong Liu

Neural surface reconstruction (NSR) has recently shown strong potential for urban 3D reconstruction from multi-view aerial imagery. However, existing NSR methods often suffer from geometric ambiguity and instability, particularly under…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Da Li , Chen Yao , Tong Mao , Jiacheng Bao , Houjun Sun

Computational imaging enables compact infrared systems, but deep-learning pipelines that combine image reconstruction and object detection often introduce substantial inference latency. Most existing acceleration strategies compress the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Xuquan Wang , Guishuo Yang , Dapeng Yan , Yujie Xing , Xuanyu Qian , Kai Zhang , Xiong Dun , Jiande Sun , Zhanshan Wang , Xinbin Cheng

In autonomous driving, robust place recognition is critical for global localization and loop closure detection. While inter-modality fusion of camera and LiDAR data in multimodal place recognition (MPR) has shown promise in overcoming the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Jingyi Xu , Zhangshuo Qi , Zhongmiao Yan , Xuyu Gao , Qianyun Jiao , Songpengcheng Xia , Xieyuanli Chen , Ling Pei

In this work, we propose the use of Ground Penetrating Radar (GPR) for rover localization on Mars. Precise pose estimation is an important task for mobile robots exploring planetary surfaces, as they operate in GPS-denied environments.…

Robotics · Computer Science 2025-11-04 Anja Sheppard , Katherine A. Skinner

Current state-of-the-art weakly supervised object detection (WSOD) studies mainly follow a two-stage training strategy which integrates a fully supervised detector (FSD) with a pure WSOD model. There are two main problems hindering the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Jun Wang , Hefeng Zhou , Xiaohan Yu

In this paper, a new classification model based on covariance matrices is built in order to classify buried objects. The inputs of the proposed models are the hyperbola thumbnails obtained with a classical Ground Penetrating Radar (GPR)…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Douba Jafuno , Ammar Mian , Guillaume Ginolhac , Nickolas Stelzenmuller

The ground plane prior is a very informative geometry clue in monocular 3D object detection (M3OD). However, it has been neglected by most mainstream methods. In this paper, we identify two key factors that limit the applicability of ground…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Fan Yang , Xinhao Xu , Hui Chen , Yuchen Guo , Jungong Han , Kai Ni , Guiguang Ding

Geometry Projection is a powerful depth estimation method in monocular 3D object detection. It estimates depth dependent on heights, which introduces mathematical priors into the deep model. But projection process also introduces the error…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Yan Lu , Xinzhu Ma , Lei Yang , Tianzhu Zhang , Yating Liu , Qi Chu , Junjie Yan , Wanli Ouyang

Hydrogeological flow and transport strongly depend on the connectivity of subsurface properties. Uncertainty concerning the underlying geological setting, due to a lack of field data and prior knowledge, calls for an evaluation of…

Geophysics · Physics 2019-01-30 Guillaume Pirot , Emanuel Huber , James Irving , Niklas Linde

We present a new learning-based framework S-3D-RCNN that can recover accurate object orientation in SO(3) and simultaneously predict implicit rigid shapes from stereo RGB images. For orientation estimation, in contrast to previous studies…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Shichao Li , Xijie Huang , Zechun Liu , Kwang-Ting Cheng

In this paper, we propose a geometric neural network with edge-aware refinement (GeoNet++) to jointly predict both depth and surface normal maps from a single image. Building on top of two-stream CNNs, GeoNet++ captures the geometric…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Xiaojuan Qi , Zhengzhe Liu , Renjie Liao , Philip H. S. Torr , Raquel Urtasun , Jiaya Jia

Absolute Pose Regression (APR) has emerged as a compelling paradigm for visual localization. However, APR models typically operate as black boxes, directly regressing a 6-DoF pose from a query image, which can lead to memorizing training…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Changyang Li , Xuejian Ma , Lixiang Liu , Zhan Li , Qingan Yan , Yi Xu

Explicitly modeling room background depth as a geometric constraint has proven effective for panoramic depth estimation. However, reconstructing this background depth for regular enclosed regions in a complex indoor scene without external…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Kanglin Ning , Ruzhao Chen , Penghong Wang , Xingtao Wang , Ruiqin Xiong , Xiaopeng Fan

In this work, we tackle 6-DoF grasp detection for transparent and specular objects, which is an important yet challenging problem in vision-based robotic systems, due to the failure of depth cameras in sensing their geometry. We, for the…

Robotics · Computer Science 2023-03-16 Qiyu Dai , Yan Zhu , Yiran Geng , Ciyu Ruan , Jiazhao Zhang , He Wang

Pavement Distress Recognition (PDR) is an important step in pavement inspection and can be powered by image-based automation to expedite the process and reduce labor costs. Pavement images are often in high-resolution with a low ratio of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Rong Qin , Luwen Huangfu , Devon Hood , James Ma , Sheng Huang

Forward-looking ground-penetrating radar (FLGPR) has recently been investigated as a remote sensing modality for buried target detection (e.g., landmines). In this context, raw FLGPR data is beamformed into images and then computerized…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Joseph A. Camilo , Leslie M. Collins , Jordan M. Malof

Various autonomous or assisted driving strategies have been facilitated through the accurate and reliable perception of the environment around a vehicle. Among the commonly used sensors, radar has usually been considered as a robust and…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Yizhou Wang , Zhongyu Jiang , Yudong Li , Jenq-Neng Hwang , Guanbin Xing , Hui Liu

Humans naturally perceive a 3D scene in front of them through accumulation of information obtained from multiple interconnected projections of the scene and by interpreting their correspondence. This phenomenon has inspired artificial…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Amirreza Farnoosh , Sarah Ostadabbas