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195 Results Found

  • Article
  • Open Access
2 Citations
2,702 Views
16 Pages

28 June 2021

It is a common paradigm in object detection frameworks that the samples in training and testing have consistent distributions for the two main tasks: Classification and bounding box regression. This paradigm is popular in sampling strategy for traini...

  • Article
  • Open Access
13 Citations
5,274 Views
15 Pages

13 December 2022

Loss functions, such as the IoU Loss function and the GIoU (Generalized Intersection over Union) Loss function have been put forward to replace regression loss functions commonly used in regression loss calculation. GIoU Loss alleviates the vanishing...

  • Article
  • Open Access
24 Citations
6,236 Views
17 Pages

22 May 2023

Bounding box regression is a crucial step in object detection, directly affecting the localization performance of the detected objects. Especially in small object detection, an excellent bounding box regression loss can significantly alleviate the pr...

  • Article
  • Open Access
925 Views
33 Pages

Symmetry-Driven Gaussian Representation and Adaptive Assignment for Oriented Object Detection

  • Jiangang Zhu,
  • Qianjin Lin,
  • Donglin Jing,
  • Qiang Fu,
  • Ting Ma and
  • Jianming Li

14 April 2025

Object Detection (OD) in Remote Sensing Imagery (RSI) encounters significant challenges such as multi-scale variation, high aspect ratios, and densely distributed objects. These challenges often result in misalignments among Bounding Box (BBox) repre...

  • Article
  • Open Access
8 Citations
3,535 Views
18 Pages

High Quality Object Detection for Multiresolution Remote Sensing Imagery Using Cascaded Multi-Stage Detectors

  • Binglong Wu,
  • Yuan Shen,
  • Shanxin Guo,
  • Jinsong Chen,
  • Luyi Sun,
  • Hongzhong Li and
  • Yong Ao

27 April 2022

Deep-learning-based object detectors have substantially improved state-of-the-art object detection in remote sensing images in terms of precision and degree of automation. Nevertheless, the large variation of the object scales makes it difficult to a...

  • Article
  • Open Access
2 Citations
2,159 Views
26 Pages

18 August 2024

In optical remote sensing image object detection, discontinuous boundaries often limit detection accuracy, particularly at high Intersection over Union (IoU) thresholds. This paper addresses this issue by proposing the Spatial Adaptive Angle-Aware (S...

  • Article
  • Open Access
794 Views
15 Pages

8 July 2025

Detecting small targets in infrared imagery remains highly challenging due to sub-pixel target sizes, low signal-to-noise ratios, and complex background clutter. This paper proposes PSHNet, a hybrid deep-learning framework that combines dense spatial...

  • Article
  • Open Access
120 Citations
10,786 Views
21 Pages

1 January 2020

The objective of detection in remote sensing images is to determine the location and category of all targets in these images. The anchor based methods are the most prevalent deep learning based methods, and still have some problems that need to be ad...

  • Article
  • Open Access
83 Citations
6,101 Views
21 Pages

Sparse Label Assignment for Oriented Object Detection in Aerial Images

  • Qi Ming,
  • Lingjuan Miao,
  • Zhiqiang Zhou,
  • Junjie Song and
  • Xue Yang

7 July 2021

Object detection in aerial images has received extensive attention in recent years. The current mainstream anchor-based methods directly divide the training samples into positives and negatives according to the intersection-over-unit (IoU) of the pre...

  • Article
  • Open Access
7 Citations
5,810 Views
17 Pages

11 December 2023

Three-dimensional object detection involves estimating the dimensions, orientations, and locations of 3D bounding boxes. Intersection of Union (IoU) loss measures the overlap between predicted 3D box and ground truth 3D bounding boxes. The localizati...

  • Article
  • Open Access
16 Citations
4,730 Views
37 Pages

19 September 2022

In synthetic aperture radar (SAR) images, ship targets are characterized by varying scales, large aspect ratios, dense arrangements, and arbitrary orientations. Current horizontal and rotation detectors fail to accurately recognize and locate ships d...

  • Article
  • Open Access
3 Citations
3,489 Views
14 Pages

Cascaded Cross-Modality Fusion Network for 3D Object Detection

  • Zhiyu Chen,
  • Qiong Lin,
  • Jing Sun,
  • Yujian Feng,
  • Shangdong Liu,
  • Qiang Liu,
  • Yimu Ji and
  • He Xu

17 December 2020

We focus on exploring the LIDAR-RGB fusion-based 3D object detection in this paper. This task is still challenging in two aspects: (1) the difference of data formats and sensor positions contributes to the misalignment of reasoning between the semant...

  • Article
  • Open Access
41 Citations
4,768 Views
21 Pages

24 February 2023

Oriented object detection (OOD) can more accurately locate objects with an arbitrary direction in remote sensing images (RSIs) compared to horizontal object detection. The most commonly used bounding box regression (BBR) loss in OOD is smooth L1 loss...

  • Article
  • Open Access
1 Citations
1,758 Views
21 Pages

8 July 2025

The accurate identification of pulmonary nodules is critical for the early diagnosis of lung diseases; however, this task remains challenging due to inadequate feature representation and limited localization sensitivity. Current methodologies often u...

  • Article
  • Open Access
2 Citations
776 Views
19 Pages

YOLOv8-MSP-PD: A Lightweight YOLOv8-Based Detection Method for Jinxiu Malus Fruit in Field Conditions

  • Yi Liu,
  • Xiang Han,
  • Hongjian Zhang,
  • Shuangxi Liu,
  • Wei Ma,
  • Yinfa Yan,
  • Linlin Sun,
  • Linlong Jing,
  • Yongxian Wang and
  • Jinxing Wang

28 June 2025

Accurate detection of Jinxiu Malus fruits in unstructured orchard environments is hampered by frequent overlap, occlusion, and variable illumination. To address these challenges, we propose YOLOv8-MSP-PD (YOLOv8 with Multi-Scale Pyramid Fusion and Pr...

  • Article
  • Open Access
17 Citations
4,978 Views
17 Pages

23 March 2021

Land use/land cover (LULC) change has been recognized as one of the most important indicators to study ecological and environmental changes. Remote sensing provides an effective way to map and monitor LULC change in real time and for large areas. How...

  • Article
  • Open Access
6 Citations
2,808 Views
14 Pages

11 July 2024

To address the challenges associated with supervising workers who wear safety belts while working at heights, this study proposes a solution involving the utilization of an object detection model to replace manual supervision. A novel object detectio...

  • Article
  • Open Access
20 Citations
6,363 Views
28 Pages

Mapping Key Indicators of Forest Restoration in the Amazon Using a Low-Cost Drone and Artificial Intelligence

  • Rafael Walter Albuquerque,
  • Daniel Luis Mascia Vieira,
  • Manuel Eduardo Ferreira,
  • Lucas Pedrosa Soares,
  • Søren Ingvor Olsen,
  • Luciana Spinelli Araujo,
  • Luiz Eduardo Vicente,
  • Julio Ricardo Caetano Tymus,
  • Cintia Palheta Balieiro and
  • Marcelo Hiromiti Matsumoto
  • + 1 author

10 February 2022

Monitoring the vegetation structure and species composition of forest restoration (FR) in the Brazilian Amazon is critical to ensuring its long-term benefits. Since remotely piloted aircrafts (RPAs) associated with deep learning (DL) are becoming pow...

  • Article
  • Open Access
53 Citations
4,072 Views
17 Pages

20 April 2020

In synthetic aperture radar (SAR) images, ships are often arbitrary-oriented and densely arranged in complex backgrounds, posing enormous challenges for ship detection. However, most existing methods detect ships with horizontal bounding boxes, which...

  • Article
  • Open Access
14 Citations
4,606 Views
22 Pages

15 January 2024

In this research, E2YOLOX-VFL is proposed as a novel approach to address the challenges of optical image multi-scale ship detection and recognition in complex maritime and land backgrounds. Firstly, the typical anchor-free network YOLOX is utilized a...

  • Article
  • Open Access
49 Citations
8,326 Views
16 Pages

Tomato Maturity Recognition Model Based on Improved YOLOv5 in Greenhouse

  • Renzhi Li,
  • Zijing Ji,
  • Shikang Hu,
  • Xiaodong Huang,
  • Jiali Yang and
  • Wenfeng Li

20 February 2023

Due to the dense distribution of tomato fruit with similar morphologies and colors, it is difficult to recognize the maturity stages when the tomato fruit is harvested. In this study, a tomato maturity recognition model, YOLOv5s-tomato, is proposed b...

  • Article
  • Open Access
16 Citations
3,305 Views
19 Pages

Kalman Filtering and Bipartite Matching Based Super-Chained Tracker Model for Online Multi Object Tracking in Video Sequences

  • Shahzad Ahmad Qureshi,
  • Lal Hussain,
  • Qurat-ul-ain Chaudhary,
  • Syed Rahat Abbas,
  • Raja Junaid Khan,
  • Amjad Ali and
  • Ala Al-Fuqaha

23 September 2022

Object tracking has gained importance in various applications especially in traffic monitoring, surveillance and security, people tracking, etc. Previous methods of multiobject tracking (MOT) carry out detections and perform object tracking. Although...

  • Article
  • Open Access
824 Views
24 Pages

Improved YOLOv8s-Based Detection for Lifting Hooks and Safety Latches

  • Yunpeng Guo,
  • Dianliang Xiao,
  • Xin Ruan,
  • Ran Li and
  • Yuqian Wang

9 September 2025

Lifting hooks equipped with safety latches are critical terminal components of lifting machinery. The safety condition of this component is a crucial factor in preventing load dislodgement during lifting operations. To achieve intelligent monitoring...

  • Article
  • Open Access
39 Citations
4,067 Views
14 Pages

Improved Algorithm for Insulator and Its Defect Detection Based on YOLOX

  • Gujing Han,
  • Tao Li,
  • Qiang Li,
  • Feng Zhao,
  • Min Zhang,
  • Ruijie Wang,
  • Qiwei Yuan,
  • Kaipei Liu and
  • Liang Qin

18 August 2022

Aerial insulator defect images have some features. For instance, the complex background and small target of defects would make it difficult to detect insulator defects quickly and accurately. To solve the problem of low accuracy of insulator defect d...

  • Article
  • Open Access
4 Citations
1,969 Views
16 Pages

28 December 2023

This study employs unmanned aerial vehicles (UAVs) to detect mouse holes in grasslands, offering an effective tool for grassland ecological conservation. We introduce the specially designed CGT-YOLOv5n model, addressing long-standing challenges UAVs...

  • Article
  • Open Access
12 Citations
3,286 Views
21 Pages

Attention-Based Lightweight YOLOv8 Underwater Target Recognition Algorithm

  • Shun Cheng,
  • Zhiqian Wang,
  • Shaojin Liu,
  • Yan Han,
  • Pengtao Sun and
  • Jianrong Li

29 November 2024

Underwater object detection is highly complex and requires a high speed and accuracy. In this paper, an underwater target detection model based on YOLOv8 (SPSM-YOLOv8) is proposed. It solves the problems of high computational complexities, slow detec...

  • Article
  • Open Access
2,606 Views
17 Pages

Siamese Visual Tracking with Spatial-Channel Attention and Ranking Head Network

  • Jianming Zhang,
  • Yifei Liang,
  • Xiaoyi Huang,
  • Li-Dan Kuang and
  • Bin Zheng

20 October 2023

Trackers based on the Siamese network have received much attention in recent years, owing to its remarkable performance, and the task of object tracking is to predict the location of the target in current frame. However, during the tracking process,...

  • Article
  • Open Access
1,034 Views
23 Pages

4 March 2025

In subway tunnel construction, current hand–eye integrated drilling robots use a camera mounted on the drilling arm for image acquisition. However, dust interference and long-distance operation cause a decline in image quality, affecting the st...

  • Article
  • Open Access
707 Views
17 Pages

30 September 2025

Background/Objectives: Sarcopenia, characterized by progressive loss of skeletal muscle mass and strength, significantly impacts physical function and quality of life in older adults. Traditional measurement methods like Dual-energy X-ray absorptiome...

  • Article
  • Open Access
6 Citations
2,864 Views
23 Pages

Super-Resolution Semantic Segmentation of Droplet Deposition Image for Low-Cost Spraying Measurement

  • Jian Liu,
  • Shihui Yu,
  • Xuemei Liu,
  • Guohang Lu,
  • Zhenbo Xin and
  • Jin Yuan

In-field in situ droplet deposition digitization is beneficial for obtaining feedback on spraying performance and precise spray control, the cost-effectiveness of the measurement system is crucial to its scalable application. However, the limitations...

  • Article
  • Open Access
30 Citations
4,807 Views
18 Pages

22 January 2023

The object detection technologies of remote sensing are widely used in various fields, such as environmental monitoring, geological disaster investigation, urban planning, and military defense. However, the detection algorithms lack the robustness to...

  • Article
  • Open Access
22 Citations
4,664 Views
19 Pages

A Lightweight Uav Swarm Detection Method Integrated Attention Mechanism

  • Chuanyun Wang,
  • Linlin Meng,
  • Qian Gao,
  • Jingjing Wang,
  • Tian Wang,
  • Xiaona Liu,
  • Furui Du,
  • Linlin Wang and
  • Ershen Wang

25 December 2022

Aiming at the problems of low detection accuracy and large computing resource consumption of existing Unmanned Aerial Vehicle (UAV) detection algorithms for anti-UAV, this paper proposes a lightweight UAV swarm detection method based on You Only Look...

  • Article
  • Open Access
19 Citations
5,082 Views
22 Pages

A Novel YOLOv10-Based Algorithm for Accurate Steel Surface Defect Detection

  • Liefa Liao,
  • Chao Song,
  • Shouluan Wu and
  • Jianglong Fu

27 January 2025

To address challenges like manual processes, complicated detection methods, high false alarm rates, and frequent errors in identifying defects on steel surfaces, this research presents an innovative detection system, YOLOv10n-SFDC. The study focuses...

  • Article
  • Open Access
1 Citations
1,602 Views
13 Pages

10 August 2023

In this paper, we propose an anchor-free smoke and fire detection network, ADFireNet, based on deformable convolution. The proposed ADFireNet network is composed of three parts: The backbone network is responsible for feature extraction of input imag...

  • Article
  • Open Access
14 Citations
7,300 Views
16 Pages

BIoU: An Improved Bounding Box Regression for Object Detection

  • Niranjan Ravi,
  • Sami Naqvi and
  • Mohamed El-Sharkawy

Object detection is a predominant challenge in computer vision and image processing to detect instances of objects of various classes within an image or video. Recently, a new domain of vehicular platforms, e-scooters, has been widely used across dom...

  • Article
  • Open Access
15 Citations
2,520 Views
17 Pages

25 July 2023

Landslide detection is crucial for natural disaster risk management. Deep-learning-based object-detection algorithms have been shown to be effective in landslide studies. However, advanced algorithms currently used for landslide detection require hig...

  • Article
  • Open Access
8 Citations
4,422 Views
17 Pages

14 September 2021

In the intelligent perception of the marine engine room, visual identification of auxiliary equipment is the prerequisite for defect recognition and anomaly detection. To improve the detection accuracy, this study presents an auxiliary equipment dete...

  • Article
  • Open Access
2 Citations
2,425 Views
23 Pages

An Automatic Detection and Statistical Method for Underwater Fish Based on Foreground Region Convolution Network (FR-CNN)

  • Shenghong Li,
  • Peiliang Li,
  • Shuangyan He,
  • Zhiyan Kuai,
  • Yanzhen Gu,
  • Haoyang Liu,
  • Tao Liu and
  • Yuan Lin

Computer vision in marine ranching enables real-time monitoring of underwater resources. Detecting fish presents challenges due to varying water turbidity and lighting, affecting color consistency. We propose a Foreground Region Convolutional Neural...

  • Article
  • Open Access
2 Citations
1,613 Views
17 Pages

15 November 2024

Land-based sources of marine outfalls are a major source of marine pollution. The monitoring of land-based sources of marine outfalls is an important means for marine environmental protection and governance. Traditional on-site manual monitoring meth...

  • Article
  • Open Access
3 Citations
1,573 Views
22 Pages

21 May 2025

Due to target diversity, life-cycle variations, and complex backgrounds, traditional pest detection methods often struggle with accuracy and efficiency. This study introduces RDW-YOLO, an improved pest detection algorithm based on YOLO11, featuring t...

  • Article
  • Open Access
2 Citations
3,471 Views
24 Pages

The automated detection and classification of immature macauba (Acrocomia aculeata) fruits is critical for improving post-harvest processing and quality control. In this study, we present a comparative evaluation of two state-of-the-art YOLO architec...

  • Article
  • Open Access
6 Citations
3,425 Views
22 Pages

9 October 2021

Quantification of renal perfusion based on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) requires determination of signal intensity time courses in the region of renal parenchyma. Thus, selection of voxels representing the kidney mus...

  • Article
  • Open Access
30 Citations
2,891 Views
20 Pages

7 May 2022

Recently, ship detection in synthetic aperture radar (SAR) images has received extensive attention. Most of the current ship detectors preset dense anchor boxes to achieve spatial alignment with ground-truth (GT) objects. Then, the detector defines t...

  • Article
  • Open Access
214 Views
21 Pages

Detection of Printing Defects on Wood-Derived Paper Products Using an Improved YOLOv8n

  • Mingyang Zhang,
  • Shuai Li,
  • Jun Zhang,
  • Xiaopeng Bai,
  • Kun Wang and
  • Hongxia Yuan

5 December 2025

Paper-based printing materials originate from the wood-based value chain–wood–pulp–paper–printing—and their yield reflects the utilization efficiency of pulp and paper resources. In roll-to-roll printing production, smal...

  • Article
  • Open Access
1,730 Views
18 Pages

Smartphone-Compatible Colorimetric Detection of CA19-9 Using Melanin Nanoparticles and Deep Learning

  • Turgut Karademir,
  • Gizem Kaleli-Can and
  • Başak Esin Köktürk-Güzel

5 August 2025

Paper-based colorimetric biosensors represent a promising class of low-cost diagnostic tools that do not require external instrumentation. However, their broader applicability is limited by the environmental concerns associated with conventional meta...

  • Article
  • Open Access
11 Citations
2,682 Views
15 Pages

YOLOv3_ReSAM: A Small-Target Detection Method

  • Bailin Liu,
  • Huan Luo,
  • Haotong Wang and
  • Shaoxu Wang

Small targets in long-distance aerial photography have the problems of small size and blurry appearance, and traditional object detection algorithms face great challenges in the field of small-object detection. With the collection of massive data in...

  • Article
  • Open Access
12 Citations
4,443 Views
26 Pages

Learning Adjustable Reduced Downsampling Network for Small Object Detection in Urban Environments

  • Huijie Zhang,
  • Li An,
  • Vena W. Chu,
  • Douglas A. Stow,
  • Xiaobai Liu and
  • Qinghua Ding

10 September 2021

Detecting small objects (e.g., manhole covers, license plates, and roadside milestones) in urban images is a long-standing challenge mainly due to the scale of small object and background clutter. Although convolution neural network (CNN)-based metho...

  • Article
  • Open Access
7 Citations
5,558 Views
19 Pages

An Efficient and Accurate Surface Defect Detection Method for Wood Based on Improved YOLOv8

  • Rijun Wang,
  • Fulong Liang,
  • Bo Wang,
  • Guanghao Zhang,
  • Yesheng Chen and
  • Xiangwei Mou

6 July 2024

Accurate detection of wood surface defects plays a pivotal role in enhancing wood grade sorting precision, maintaining high standards in wood processing quality, and safeguarding forest resources. This paper introduces an efficient and precise approa...

  • Article
  • Open Access
8 Citations
3,525 Views
16 Pages

1 November 2022

CNN-based object detectors have achieved great success in recent years. The available detectors adopted horizontal bounding boxes to locate various objects. However, in some unique scenarios, objects such as buildings and vehicles in aerial images ma...

  • Article
  • Open Access
23 Citations
4,680 Views
25 Pages

SAR Small Ship Detection Based on Enhanced YOLO Network

  • Tianyue Guan,
  • Sheng Chang,
  • Chunle Wang and
  • Xiaoxue Jia

27 February 2025

Ships are important targets for marine surveillance in both military and civilian domains. Since the rise of deep learning, ship detection in synthetic aperture radar (SAR) images has achieved significant progress. However, the variability in ship si...

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