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Camera calibration is a crucial component in the realm of sports analytics, as it serves as the foundation to extract 3D information out of the broadcast images. Despite the significance of camera calibration research in sports analytics,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Floriane Magera , Thomas Hoyoux , Olivier Barnich , Marc Van Droogenbroeck

Accurate camera calibration is crucial for various computer vision applications. However, measuring calibration accuracy in the real world is challenging due to the lack of datasets with ground truth to evaluate them. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Lala Shakti Swarup Ray , Bo Zhou , Lars Krupp , Sungho Suh , Paul Lukowicz

The light field camera is useful for computer graphics and vision applications. Calibration is an essential step for these applications. After calibration, we can rectify the captured image by using the calibrated camera parameters.…

Computer Vision and Pattern Recognition · Computer Science 2014-07-17 Yichao Xu , Kazuki Maeno , Hajime Nagahara , Rin-ichiro Taniguchi

In this paper, we address the problem of estimating the migration direction of cells based on a single image. A solution to this problem lays the foundation for a variety of applications that were previously not possible. To our knowledge,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Lennart Bruns , Lucas Lamparter , Milos Galic , Xiaoyi Jiang

In this paper, we address extrinsic calibration for camera, lidar, and 4D radar sensors. Accurate extrinsic calibration of radar remains a challenge due to the sparsity of its data. We propose CLRNet, a novel, multi-modal end-to-end deep…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Marcell Kegl , Andras Palffy , Csaba Benedek , Dariu M. Gavrila

This paper presents a novel technique for camera calibration using a single view that incorporates a spherical mirror. Leveraging the distinct characteristics of the sphere's contour visible in the image and its reflections, we showcase the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Nissim Barzilay , Ofek Narinsky , Michael Werman

In this paper, we propose a method for image-set classification based on convex cone models, focusing on the effectiveness of convolutional neural network (CNN) features as inputs. CNN features have non-negative values when using the…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Naoya Sogi , Taku Nakayama , Kazuhiro Fukui

Automatic and precise medical image segmentation (MIS) is of vital importance for clinical diagnosis and analysis. Current MIS methods mainly rely on the convolutional neural network (CNN) or self-attention mechanism (Transformer) for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Lanhu Wu , Miao Zhang , Yongri Piao , Zhenyan Yao , Weibing Sun , Feng Tian , Huchuan Lu

Super-resolution (SR) is a technique that allows increasing the resolution of a given image. Having applications in many areas, from medical imaging to consumer electronics, several SR methods have been proposed. Currently, the best…

Computer Vision and Pattern Recognition · Computer Science 2019-12-02 Marija Vella , João F. C. Mota

During the last half decade, convolutional neural networks (CNNs) have triumphed over semantic segmentation, which is one of the core tasks in many applications such as autonomous driving. However, to train CNNs requires a considerable…

Computer Vision and Pattern Recognition · Computer Science 2018-11-15 Yang Zhang , Philip David , Boqing Gong

Camera pose estimation or camera relocalization is the centerpiece in numerous computer vision tasks such as visual odometry, structure from motion (SfM) and SLAM. In this paper we propose a neural network approach with a graph transformer…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Xinyi Li , Haibin Ling

The ability to judge whether a caption correctly describes an image is a critical part of vision-language understanding. However, state-of-the-art models often misinterpret the correctness of fine-grained details, leading to errors in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Suzanne Petryk , Spencer Whitehead , Joseph E. Gonzalez , Trevor Darrell , Anna Rohrbach , Marcus Rohrbach

Deep neural networks need a big amount of training data, while in the real world there is a scarcity of data available for training purposes. To resolve this issue unsupervised methods are used for training with limited data. In this…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Sayed Hashim , Muhammad Ali

Sensor fusion is essential for autonomous driving and autonomous robots, and radar-camera fusion systems have gained popularity due to their complementary sensing capabilities. However, accurate calibration between these two sensors is…

Robotics · Computer Science 2024-01-26 Lei Cheng , Siyang Cao

Recovering structure and motion parameters given a image pair or a sequence of images is a well studied problem in computer vision. This is often achieved by employing Structure from Motion (SfM) or Simultaneous Localization and Mapping…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond

We propose a novel video object segmentation algorithm based on pixel-level matching using Convolutional Neural Networks (CNN). Our network aims to distinguish the target area from the background on the basis of the pixel-level similarity…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Jae Shin Yoon , Francois Rameau , Junsik Kim , Seokju Lee , Seunghak Shin , In So Kweon

Photo Rater is a computer vision project that uses neural networks to help photographers select the best photo among those that are taken based on the same scene. This process is usually referred to as "culling" in photography, and it can…

Computer Vision and Pattern Recognition · Computer Science 2023-10-18 Wentao Guo , Charlie Ruan , Claire Zhou

Contrastive Language-Image Pretraining (CLIP) has shown impressive zero-shot performance on image classification. However, state-of-the-art methods often rely on fine-tuning techniques like prompt learning and adapter-based tuning to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Ans Munir , Faisal Z. Qureshi , Muhammad Haris Khan , Mohsen Ali

Convolutional neural networks (CNNs) show outstanding performance in many image processing problems, such as image recognition, object detection and image segmentation. Semantic segmentation is a very challenging task that requires…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Fan Jia , Jun Liu , Xue-cheng Tai

Controllability plays a crucial role in video generation, as it allows users to create and edit content more precisely. Existing models, however, lack control of camera pose that serves as a cinematic language to express deeper narrative…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Hao He , Yinghao Xu , Yuwei Guo , Gordon Wetzstein , Bo Dai , Hongsheng Li , Ceyuan Yang
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