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Real-world applications, such as autonomous driving and humanoid robot manipulation, require precise spatial perception. However, it remains underexplored how Vision-Language Models (VLMs) recognize spatial relationships and perceive…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Fei Kong , Jinhao Duan , Kaidi Xu , Zhenhua Guo , Xiaofeng Zhu , Xiaoshuang Shi

Detecting persons using a 2D LiDAR is a challenging task due to the low information content of 2D range data. To alleviate the problem caused by the sparsity of the LiDAR points, current state-of-the-art methods fuse multiple previous scans…

Robotics · Computer Science 2020-08-03 Dan Jia , Alexander Hermans , Bastian Leibe

This paper focuses on increasing the resolution of depth maps obtained from 3D cameras using structured light technology. Two deep learning models FDSR and DKN are modified to work with high-resolution data, and data pre-processing…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Martin Melicherčík , Lukáš Gajdošech , Viktor Kocur , Martin Madaras

In this work, we address the problem of jointly estimating albedo, normals, depth and 3D spatially-varying lighting from a single image. Most existing methods formulate the task as image-to-image translation, ignoring the 3D properties of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Zian Wang , Jonah Philion , Sanja Fidler , Jan Kautz

Multispectral imaging is an important task of image processing and computer vision, which is especially relevant to applications such as dehazing or object detection. With the development of the RGBT (RGB & Thermal) sensor, the problem of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Nati Ofir , Jean-Christophe Nebel

Structured-light three-dimensional (3D) imaging can achieve 3D shape of a stationary object via one or more pixelated array cameras with phase-shifting illumination. In order to extend 3D imaging to moving scenarios, we propose a 3D imaging…

Image and Video Processing · Electrical Eng. & Systems 2019-05-01 Wen-Kai Yu

This paper introduces LiGSM, a novel LiDAR-enhanced 3D Gaussian Splatting (3DGS) mapping framework that improves the accuracy and robustness of 3D scene mapping by integrating LiDAR data. LiGSM constructs joint loss from images and LiDAR…

Robotics · Computer Science 2025-03-10 Jian Shen , Huai Yu , Ji Wu , Wen Yang , Gui-Song Xia

This project aims to develop a robust video surveillance system, which can segment videos into smaller clips based on the detection of activities. It uses CCTV footage, for example, to record only major events-like the appearance of a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Shahran Rahman Alve

Supervised learning depth estimation methods can achieve good performance when trained on high-quality ground-truth, like LiDAR data. However, LiDAR can only generate sparse 3D maps which causes losing information. Obtaining high-quality…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Hao Xing , Yifan Cao , Maximilian Biber , Mingchuan Zhou , Darius Burschka

Nowadays, modern Earth Observation systems continuously generate huge amounts of data. A notable example is represented by the Sentinel-2 mission, which provides images at high spatial resolution (up to 10m) with high temporal revisit…

Computer Vision and Pattern Recognition · Computer Science 2018-09-21 Roberto Interdonato , Dino Ienco , Raffaele Gaetano , Kenji Ose

Anomaly identification is highly dependent on the relationship between the object and the scene, as different/same object actions in same/different scenes may lead to various degrees of normality and anomaly. Therefore, object-scene…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Hui Lv , Zhen Cui , Biao Wang , Jian Yang

Contrastive learning has shown promising potential in self-supervised spatio-temporal representation learning. Most works naively sample different clips to construct positive and negative pairs. However, we observe that this formulation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Shuangrui Ding , Rui Qian , Hongkai Xiong

Photons that are entangled or correlated in orbital angular momentum have been extensively used for remote sensing, object identification and imaging. It has recently been demonstrated that intensity fluctuations give rise to the formation…

With the introduction of consumer light field cameras, light field imaging has recently become widespread. However, there is an inherent trade-off between the angular and spatial resolution, and thus, these cameras often sparsely sample in…

Computer Vision and Pattern Recognition · Computer Science 2016-09-13 Nima Khademi Kalantari , Ting-Chun Wang , Ravi Ramamoorthi

LiDAR point cloud analysis is a core task for 3D computer vision, especially for autonomous driving. However, due to the severe sparsity and noise interference in the single sweep LiDAR point cloud, the accurate semantic segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Xu Yan , Jiantao Gao , Jie Li , Ruimao Zhang , Zhen Li , Rui Huang , Shuguang Cui

New era has unlocked exciting possibilities for extending Large Language Models (LLMs) to tackle 3D vision-language tasks. However, most existing 3D multimodal LLMs (MLLMs) rely on compressing holistic 3D scene information or segmenting…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Xiaoyan Wang , Zeju Li , Yifan Xu , Jiaxing Qi , Zhifei Yang , Ruifei Ma , Xiangde Liu , Chao Zhang

Motion blur arises when rapid scene changes occur during the exposure period, collapsing rich intra-exposure motion into a single RGB frame. Without explicit structural or temporal cues, RGB-only deblurring is highly ill-posed and often…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yapeng Meng , Lin Yang , Yuguo Chen , Xiangru Chen , Taoyi Wang , Lijian Wang , Zheyu Yang , Yihan Lin , Rong Zhao

Radar sensors provide reliable perception across adverse weather, lighting, and long-range conditions, yet existing machine learning approaches remain fragmented and task-specific, with each downstream task employing distinct architectures…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Pushkal Mishra , Kshitiz Bansal , Dinesh Bharadia

We explore learning pixelwise correspondences between images of deformable objects in different configurations. Traditional correspondence matching approaches such as SIFT, SURF, and ORB can fail to provide sufficient contextual information…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Aditya Ganapathi , Priya Sundaresan , Brijen Thananjeyan , Ashwin Balakrishna , Daniel Seita , Ryan Hoque , Joseph E. Gonzalez , Ken Goldberg

Over the last two decades, spatial light modulators (SLMs) have revolutionised our ability to shape optical fields. They grant independent dynamic control over thousands of degrees-of-freedom within a single light beam. In this work we test…

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