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Introduction of Convolutional Neural Networks has improved results on almost every image-based problem and Content-Based Image Retrieval is not an exception. But the CNN features, being rotation invariant, creates problems to build a…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Subhadip Maji , Smarajit Bose

Recent progress in image deblurring techniques focuses mainly on operating in both frequency and spatial domains using the Fourier transform (FT) properties. However, their performance is limited due to the dependency of FT on stationary…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Subhajit Paul , Sahil Kumawat , Ashutosh Gupta , Deepak Mishra

Higher spatial resolution and larger imaging scene are always the goals pursued by advanced space-borne SAR system.High resolution and wide swath SAR imaging can provide more information about the illuminated scene of interest on one…

信号处理 · 电气工程与系统科学 2024-02-27 Xinhua Mao

Fine-grained image retrieval (FGIR) is to learn visual representations that distinguish visually similar objects while maintaining generalization. Existing methods propose to generate discriminative features, but rarely consider the…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Xin Jiang , Hao Tang , Rui Yan , Jinhui Tang , Zechao Li

Spectral methods such as the improved Fourier Mellin Invariant (iFMI) transform have proved faster, more robust and accurate than feature based methods on image registration. However, iFMI is restricted to work only when the camera moves in…

机器人学 · 计算机科学 2019-10-15 Qingwen Xu , Arturo Gomez Chavez , Heiko Bülow , Andreas Birk , Sören Schwertfeger

General detectors follow the pipeline that feature maps extracted from ConvNets are shared between classification and regression tasks. However, there exists obvious conflicting requirements in multi-orientation object detection that…

计算机视觉与模式识别 · 计算机科学 2019-03-28 Zhixin Zhang , Xudong Chen , Jie Liu , Kaibo Zhou

Region-based image retrieval (RBIR) technique is revisited. In early attempts at RBIR in the late 90s, researchers found many ways to specify region-based queries and spatial relationships; however, the way to characterize the regions, such…

多媒体 · 计算机科学 2017-09-27 Ryota Hinami , Yusuke Matsui , Shin'ichi Satoh

Recently, numerous methods have achieved impressive performance in remote sensing object detection, relying on convolution or transformer architectures. Such detectors typically have a feature backbone to extract useful features from raw…

计算机视觉与模式识别 · 计算机科学 2025-10-01 JongHyun Park , Yechan Kim , Moongu Jeon

Detection of arbitrarily rotated objects is a challenging task due to the difficulties of locating the multi-angle objects and separating them effectively from the background. The existing methods are not robust to angle varies of the…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Lei Liu , Zongxu Pan , Bin Lei

Detecting rotated objects accurately and efficiently is a significant challenge in computer vision, particularly in applications such as aerial imagery, remote sensing, and autonomous driving. Although traditional object detection…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Chien Thai , Mai Xuan Trang , Huong Ninh , Hoang Hiep Ly , Anh Son Le

Copy move forgery detection in digital images has become a very popular research topic in the area of image forensics. Due to the availability of sophisticated image editing tools and ever increasing hardware capabilities, it has become an…

计算机视觉与模式识别 · 计算机科学 2017-02-16 Sunil Kumar , J. V. Desai , Shaktidev Mukherjee

We present a reinforcement learning approach for detecting objects within an image. Our approach performs a step-wise deformation of a bounding box with the goal of tightly framing the object. It uses a hierarchical tree-like representation…

计算机视觉与模式识别 · 计算机科学 2018-10-29 Jonas Koenig , Simon Malberg , Martin Martens , Sebastian Niehaus , Artus Krohn-Grimberghe , Arunselvan Ramaswamy

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Object detection in remote sensing images relies on a large amount of labeled data for training. However, the increasing number of new categories and class imbalance make exhaustive annotation impractical. Few-shot object detection (FSOD)…

计算机视觉与模式识别 · 计算机科学 2023-11-17 Nanqing Liu , Xun Xu , Turgay Celik , Zongxin Gan , Heng-Chao Li

Recent advances in rotation-invariant (RI) learning for 3D point clouds typically replace raw coordinates with handcrafted RI features to ensure robustness under arbitrary rotations. However, these approaches often suffer from the loss of…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Jiaxun Guo , Manar Amayri , Nizar Bouguila , Xin Liu , Wentao Fan

Optically observing and monitoring moving objects, both natural and artificial, is important to human space security. Non-sidereal tracking can improve the system's limiting magnitude for moving objects, which benefits the surveillance.…

天体物理仪器与方法 · 物理学 2024-09-05 Lei Wang , Xiaoming Zhang , Chunhai Bai , Haiwen Xie , Juan Li , Jiayi Ge , Jianfeng Wang , Xianqun Zeng , Jiantao Sun , Xiaojun Jiang

Leveraging multi-modal fusion, especially between camera and LiDAR, has become essential for building accurate and robust 3D object detection systems for autonomous vehicles. Until recently, point decorating approaches, in which point…

计算机视觉与模式识别 · 计算机科学 2023-04-28 Philip Jacobson , Yiyang Zhou , Wei Zhan , Masayoshi Tomizuka , Ming C. Wu

We present an efficient foveal framework to perform object detection. A scale normalized image pyramid (SNIP) is generated that, like human vision, only attends to objects within a fixed size range at different scales. Such a restriction of…

计算机视觉与模式识别 · 计算机科学 2021-02-11 Bharat Singh , Mahyar Najibi , Abhishek Sharma , Larry S. Davis

Feature pyramid network (FPN) is a critical component in modern object detection frameworks. The performance gain in most of the existing FPN variants is mainly attributed to the increase of computational burden. An attempt to enhance the…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Mingjian Zhu , Kai Han , Changbin Yu , Yunhe Wang

This paper aims at providing multi-source remote sensing images registered in geometric space for image fusion. Focusing on the characteristics and differences of multi-source remote sensing images, a feature-based registration algorithm is…

图像与视频处理 · 电气工程与系统科学 2021-04-27 Chenzhong Gao , Wei Li