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Existing anchor-based and anchor-free object detectors in multi-stage or one-stage pipelines have achieved very promising detection performance. However, they still encounter the design difficulty in hand-crafted 2D anchor definition and…

Computer Vision and Pattern Recognition · Computer Science 2020-05-13 Geng Zhan , Dan Xu , Guo Lu , Wei Wu , Chunhua Shen , Wanli Ouyang

In contrast to the generic object, aerial targets are often non-axis aligned with arbitrary orientations having the cluttered surroundings. Unlike the mainstreamed approaches regressing the bounding box orientations, this paper proposes an…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Wentong Li , Yijie Chen , Kaixuan Hu , Jianke Zhu

In marine surveillance, applications span military and civilian domains, including ship detection, marine traffic control, and disaster management. Optical and hyperspectral satellites are key for this purpose. This paper focuses on ship…

Image and Video Processing · Electrical Eng. & Systems 2024-10-16 Alyazia Al Shamsi , Alavikunhu Panthakkan , Saeed Al Mansoori , Hussain Al Ahmad

Recently, methods based on deep learning have been successfully applied to ship detection for synthetic aperture radar (SAR) images. Despite the development of numerous ship detection methodologies, detecting small and coastal ships remains…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Xiaolin Ma , Junkai Cheng , Aihua Li , Yuhua Zhang , Zhilong Lin

Detecting objects in aerial images is challenging for at least two reasons: (1) target objects like pedestrians are very small in pixels, making them hardly distinguished from surrounding background; and (2) targets are in general sparsely…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fan Yang , Heng Fan , Peng Chu , Erik Blasch , Haibin Ling

This paper introduces the point-axis representation for oriented object detection, emphasizing its flexibility and geometrically intuitive nature with two key components: points and axes. 1) Points delineate the spatial extent and contours…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Zeyang Zhao , Qilong Xue , Yuhang He , Yifan Bai , Xing Wei , Yihong Gong

Detection of artificial objects from underwater imagery gathered by Autonomous Underwater Vehicles (AUVs) is a key requirement for many subsea applications. Real-world AUV image datasets tend to be very large and unlabelled. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Suraj Bijjahalli , Oscar Pizarro , Stefan B. Williams

Extreme amodal detection is the task of inferring the 2D location of objects that are not fully visible in the input image but are visible within an expanded field-of-view. This differs from amodal detection, where the object is partially…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Changlin Song , Yunzhong Hou , Michael Randall Barnes , Rahul Shome , Dylan Campbell

This paper introduces the Maritime Ship Navigation Behavior Dataset (MID), designed to address challenges in ship detection within complex maritime environments using Oriented Bounding Boxes (OBB). MID contains 5,673 images with 135,884…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Yugang Chang , Hongyu Chen , Fei Wang , Chengcheng Chen , Weiming Zeng

Automatic multi-class object detection in remote sensing images in unconstrained scenarios is of high interest for several applications including traffic monitoring and disaster management. The huge variation in object scale, orientation,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Seyed Majid Azimi , Eleonora Vig , Reza Bahmanyar , Marco Körner , Peter Reinartz

Detecting and tracking ground objects using earth observation imagery remains a significant challenge in the field of remote sensing. Continuous maritime ship tracking is crucial for applications such as maritime search and rescue, law…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Han Wang , Shengyang Li , Jian Yang , Yuxuan Liu , Yixuan Lv , Zhuang Zhou

On-board real-time vehicle detection is of great significance for UAVs and other embedded mobile platforms. We propose a computationally inexpensive detection network for vehicle detection in UAV imagery which we call ShuffleDet. In order…

Computer Vision and Pattern Recognition · Computer Science 2018-11-16 Seyed Majid Azimi

Object detection has been applied in a wide variety of real world scenarios, so detection algorithms must provide confidence in the results to ensure that appropriate decisions can be made based on their results. Accordingly, several…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Sanghun Park , Kunhee Kim , Eunseop Lee , Daijin Kim

Keypoint-based detectors have achieved pretty-well performance. However, incorrect keypoint matching is still widespread and greatly affects the performance of the detector. In this paper, we propose CentripetalNet which uses centripetal…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Zhiwei Dong , Guoxuan Li , Yue Liao , Fei Wang , Pengju Ren , Chen Qian

We classify the discontinuity of loss in both five-param and eight-param rotated object detection methods as rotation sensitivity error (RSE) which will result in performance degeneration. We introduce a novel modulated rotation loss to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-27 Wen Qian , Xue Yang , Silong Peng , Junchi Yan , Xiujuan Zhang

Text in natural images is of arbitrary orientations, requiring detection in terms of oriented bounding boxes. Normally, a multi-oriented text detector often involves two key tasks: 1) text presence detection, which is a classification…

Computer Vision and Pattern Recognition · Computer Science 2018-03-15 Minghui Liao , Zhen Zhu , Baoguang Shi , Gui-song Xia , Xiang Bai

In the realm of intelligent maritime navigation, object detection from a shipborne perspective is paramount. Despite the criticality, the paucity of maritime-specific data impedes the deployment of sophisticated visual perception…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Yu Zhang , Fengyuan Liu , Juan Lyu , Yi Wei , Changdong Yu

Recent remote sensing tech advancements drive imagery growth, making oriented object detection rapid development, yet hindered by labor-intensive annotation for high-density scenes. Oriented object detection with point supervision offers a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Xinyuan Liu , Hang Xu , Yike Ma , Yucheng Zhang , Feng Dai

In this paper, we propose an advanced methodology for the detection of 3D objects and precise estimation of their spatial positions from a single image. Unlike conventional frameworks that rely solely on center-point and dimension…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Dhyey Manish Rajani , Surya Pratap Singh , Rahul Kashyap Swayampakula

Object detection has recently seen an interesting trend in terms of the most innovative research work, this task being of particular importance in the field of remote sensing, given the consistency of these images in terms of geographical…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Anasse Boutayeb , Iyad Lahsen-cherif , Ahmed El Khadimi