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Although variable-rate compressed image formats such as JPEG are widely used to efficiently encode images, they have not found their way into real-time rendering due to special requirements such as random access to individual texels. In…

Graphics · Computer Science 2025-10-13 Elias Kristmann , Markus Schütz , Michael Wimmer

Learning-based image compression was shown to achieve a competitive performance with state-of-the-art transform-based codecs. This motivated the development of new learning-based visual compression standards such as JPEG-AI. Of particular…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Yingpeng Deng , Lina J. Karam

To reduce the storage requirements, remote sensing (RS) images are usually stored in compressed format. Existing scene classification approaches using deep neural networks (DNNs) require to fully decompress the images, which is a…

Image and Video Processing · Electrical Eng. & Systems 2020-12-16 Akshara Preethy Byju , Gencer Sumbul , Begüm Demir , Lorenzo Bruzzone

Visual Place Recognition (VPR) in areas with similar scenes such as urban or indoor scenarios is a major challenge. Existing VPR methods using global descriptors have difficulty capturing local specific regions (LSR) in the scene and are…

Computer Vision and Pattern Recognition · Computer Science 2022-02-14 Yingfeng Cai , Junqiao Zhao , Jiafeng Cui , Fenglin Zhang , Chen Ye , Tiantian Feng

The utilization of multi-modal sensor data in visual place recognition (VPR) has demonstrated enhanced performance compared to single-modal counterparts. Nonetheless, integrating additional sensors comes with elevated costs and may not be…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Sijie Wang , Rui She , Qiyu Kang , Xingchao Jian , Kai Zhao , Yang Song , Wee Peng Tay

In recent years we have witnessed an increasing interest in applying Deep Neural Networks (DNNs) to improve the rate-distortion performance in image compression. However, the existing approaches either train a post-processing DNN on the…

Image and Video Processing · Electrical Eng. & Systems 2020-10-27 Yannick Strümpler , Ren Yang , Radu Timofte

The availability of city-scale Lidar maps enables the potential of city-scale place recognition using mobile cameras. However, the city-scale Lidar maps generally need to be compressed for storage efficiency, which increases the difficulty…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Xudong Cai , Yongcai Wang , Zhe Huang , Yu Shao , Deying Li

Visual place recognition is a challenging task for autonomous driving and robotics, which is usually considered as an image retrieval problem. A commonly used two-stage strategy involves global retrieval followed by re-ranking using…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yanqing Shen , Sanping Zhou , Jingwen Fu , Ruotong Wang , Shitao Chen , Nanning Zheng

The assessment of face image quality is crucial to ensure reliable face recognition. In order to provide data subjects and operators with explainable and actionable feedback regarding captured face images, relevant quality components have…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Laurin Jonientz , Johannes Merkle , Christian Rathgeb , Benjamin Tams , Georg Merz

In Visual Place Recognition (VPR) the pose of a query image is estimated by comparing the image to a map of reference images with known reference poses. As is typical for image retrieval problems, a feature extractor maps the query and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Mubariz Zaffar , Liangliang Nan , Julian F. P. Kooij

LiDAR Place Recognition (LPR) is a key component in robotic localization, enabling robots to align current scans with prior maps of their environment. While Visual Place Recognition (VPR) has embraced Vision Foundation Models (VFMs) to…

Robotics · Computer Science 2025-08-11 Minwoo Jung , Lanke Frank Tarimo Fu , Maurice Fallon , Ayoung Kim

In recent decades, digital image processing has gained enormous popularity. Consequently, a number of data compression strategies have been put forth, with the goal of minimizing the amount of information required to represent images. Among…

Image and Video Processing · Electrical Eng. & Systems 2023-07-04 Suman Kunwar

With the proliferation of deep learning methods, many computer vision problems which were considered academic are now viable in the consumer setting. One drawback of consumer applications is lossy compression, which is necessary from an…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Max Ehrlich , Larry Davis , Ser-Nam Lim , Abhinav Shrivastava

Accurate camera localization is crucial for modern retail environments, enabling enhanced customer experiences, streamlined inventory management, and autonomous operations. While Absolute Pose Regression (APR) from a single image offers a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Yoli Shavit , Yosi Keller

Visual place recognition (VPR) aiming at predicting the location of an image based solely on its visual features is a fundamental task in robotics and autonomous systems. Domain variation remains one of the main challenges in VPR and is…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Shanshan Wan , Lai Kang , Yingmei Wei , Tianrui Shen , Haixuan Wang , Chao Zuo

Visual place recognition (VPR) is typically regarded as a specific image retrieval task, whose core lies in representing images as global descriptors. Over the past decade, dominant VPR methods (e.g., NetVLAD) have followed a paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Feng Lu , Tong Jin , Canming Ye , Yunpeng Liu , Xiangyuan Lan , Chun Yuan

Visual Place Recognition (VPR) often fails under extreme environmental changes and perceptual aliasing. Furthermore, standard systems cannot perform "blind" localization from verbal descriptions alone, a capability needed for applications…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Ofer Idan , Dan Badur , Yosi Keller , Yoli Shavit

Lossy image compression strategies allow for more efficient storage and transmission of data by encoding data to a reduced form. This is essential enable training with larger datasets on less storage-equipped environments. However, such…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Neelanjan Bhowmik , Jack W. Barker , Yona Falinie A. Gaus , Toby P. Breckon

Recent studies show that vision models pre-trained in generic visual learning tasks with large-scale data can provide useful feature representations for a wide range of visual perception problems. However, few attempts have been made to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Feng Lu , Lijun Zhang , Xiangyuan Lan , Shuting Dong , Yaowei Wang , Chun Yuan

Virtual Reality (VR) has the potential of becoming the next ubiquitous computing platform. Continued progress in the burgeoning field of VR depends critically on an efficient computing substrate. In particular, DRAM access energy is known…

Graphics · Computer Science 2023-10-03 Nisarg Ujjainkar , Ethan Shahan , Kenneth Chen , Budmonde Duinkharjav , Qi Sun , Yuhao Zhu