Nayeemul Islam Nayeem¹, Shirin Mahbuba¹, Sanjida Islam Disha¹, Md Rifat Hossain Buiyan¹, Shakila Rahman^1,*, M. Abdullah-Al-Wadud², Jia Uddin^3,*

CMC-Computers, Materials & Continua, Vol.85, No.1, pp. 1541-1557, 2025, DOI:10.32604/cmc.2025.065061 - 29 August 2025

Abstract Human activity recognition is a significant area of research in artificial intelligence for surveillance, healthcare, sports, and human-computer interaction applications. The article benchmarks the performance of You Only Look Once version 11-based (YOLOv11-based) architecture for multi-class human activity recognition. The article benchmarks the performance of You Only Look Once version 11-based (YOLOv11-based) architecture for multi-class human activity recognition. The dataset consists of 14,186 images across 19 activity classes, from dynamic activities such as running and swimming to static activities such as sitting and sleeping. Preprocessing included resizing all images to 512 512 pixels, annotating them… More >

Yunho Na¹, Munsu Jeon¹, Seungmin Joo¹, Junsoo Kim¹, Ki-Yong Oh^1,2,*, Min Ku Kim^1,2,*, Joon-Young Park³

CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.1, pp. 1013-1044, 2025, DOI:10.32604/cmes.2025.066447 - 31 July 2025

Abstract This paper proposes an automated detection framework for transmission facilities using a feature-attention multi-scale robustness network (FAMSR-Net) with high-fidelity virtual images. The proposed framework exhibits three key characteristics. First, virtual images of the transmission facilities generated using StyleGAN2-ADA are co-trained with real images. This enables the neural network to learn various features of transmission facilities to improve the detection performance. Second, the convolutional block attention module is deployed in FAMSR-Net to effectively extract features from images and construct multi-dimensional feature maps, enabling the neural network to perform precise object detection in various environments. Third, an… More >

Xinyu Li^1,2, Gang Wan², Xinyang Chen³, Liyue Qie³, Xinnan Fan³, Pengfei Shi³, Jin Wan^3,*

CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.1, pp. 1071-1090, 2025, DOI:10.32604/cmes.2025.064775 - 31 July 2025

Abstract The inherent limitations of 2D object detection, such as inadequate spatial reasoning and susceptibility to environmental occlusions, pose significant risks to the safety and reliability of autonomous driving systems. To address these challenges, this paper proposes an enhanced 3D object detection framework (FastSECOND) based on an optimized SECOND architecture, designed to achieve rapid and accurate perception in autonomous driving scenarios. Key innovations include: (1) Replacing the Rectified Linear Unit (ReLU) activation functions with the Gaussian Error Linear Unit (GELU) during voxel feature encoding and region proposal network stages, leveraging partial convolution to balance computational efficiency… More >

Ching-Lung Fan^1,*, Yu-Jen Chung², Shan-Min Yen^1,3

CMC-Computers, Materials & Continua, Vol.84, No.3, pp. 4627-4653, 2025, DOI:10.32604/cmc.2025.066856 - 30 July 2025

Abstract Efficient banana crop detection is crucial for precision agriculture; however, traditional remote sensing methods often lack the spatial resolution required for accurate identification. This study utilizes low-altitude Unmanned Aerial Vehicle (UAV) images and deep learning-based object detection models to enhance banana plant detection. A comparative analysis of Faster Region-Based Convolutional Neural Network (Faster R-CNN), You Only Look Once Version 3 (YOLOv3), Retina Network (RetinaNet), and Single Shot MultiBox Detector (SSD) was conducted to evaluate their effectiveness. Results show that RetinaNet achieved the highest detection accuracy, with a precision of 96.67%, a recall of 71.67%, and… More >

Jian Peng¹, Hui He², Dengyong Zhang^2,*

CMC-Computers, Materials & Continua, Vol.84, No.3, pp. 5047-5061, 2025, DOI:10.32604/cmc.2025.066368 - 30 July 2025

Abstract Object detection plays a critical role in drone imagery analysis, especially in remote sensing applications where accurate and efficient detection of small objects is essential. Despite significant advancements in drone imagery detection, most models still struggle with small object detection due to challenges such as object size, complex backgrounds. To address these issues, we propose a robust detection model based on You Only Look Once (YOLO) that balances accuracy and efficiency. The model mainly contains several major innovation: feature selection pyramid network, Inner-Shape Intersection over Union (ISIoU) loss function and small object detection head. To… More >

Zhengji Li¹, Fazhan Xiong¹, Boyun Huang¹, Meihui Li¹, Xi Xiao², Yingrui Ji^3,4, Jiacheng Xie^1,2, Aokun Liang⁵, Hao Xu^6,*

CMC-Computers, Materials & Continua, Vol.84, No.3, pp. 5613-5635, 2025, DOI:10.32604/cmc.2025.066188 - 30 July 2025

Abstract Accurate and real-time road defect detection is essential for ensuring traffic safety and infrastructure maintenance. However, existing vision-based methods often struggle with small, sparse, and low-resolution defects under complex road conditions. To address these limitations, we propose Multi-Scale Guided Detection YOLO (MGD-YOLO), a novel lightweight and high-performance object detector built upon You Only Look Once Version 5 (YOLOv5). The proposed model integrates three key components: (1) a Multi-Scale Dilated Attention (MSDA) module to enhance semantic feature extraction across varying receptive fields; (2) Depthwise Separable Convolution (DSC) to reduce computational cost and improve model generalization; and More >

Haiyan Chen^*, Rong Li

CMC-Computers, Materials & Continua, Vol.84, No.3, pp. 5693-5712, 2025, DOI:10.32604/cmc.2025.065339 - 30 July 2025

Abstract The detection of Ochotona Curzoniae serves as a fundamental component for estimating the population size of this species and for analyzing the dynamics of its population fluctuations. In natural environments, the pixels representing Ochotona Curzoniae constitute a small fraction of the total pixels, and their distinguishing features are often subtle, complicating the target detection process. To effectively extract the characteristics of these small targets, a feature fusion approach that utilizes up-sampling and channel integration from various layers within a CNN can significantly enhance the representation of target features, ultimately improving detection accuracy. However, the top-down… More >

An-Chao Tsai^*, Chayanon Pookunngern

CMC-Computers, Materials & Continua, Vol.84, No.2, pp. 2455-2471, 2025, DOI:10.32604/cmc.2025.067413 - 03 July 2025

Abstract Food waste presents a major global environmental challenge, contributing to resource depletion, greenhouse gas emissions, and climate change. Black Soldier Fly Larvae (BSFL) offer an eco-friendly solution due to their exceptional ability to decompose organic matter. However, accurately identifying larval instars is critical for optimizing feeding efficiency and downstream applications, as different stages exhibit only subtle visual differences. This study proposes a real-time mobile application for automatic classification of BSFL larval stages. The system distinguishes between early instars (Stages 1–4), suitable for food waste processing and animal feed, and late instars (Stages 5–6), optimal for… More >

Pengfei Wang^1,2,3, Jiwu Sun², Lu Lu^1,4, Hongchen Li¹, Hongzhe Liu², Cheng Xu², Yongqiang Liu^1,*

CMC-Computers, Materials & Continua, Vol.84, No.2, pp. 2883-2903, 2025, DOI:10.32604/cmc.2025.065267 - 03 July 2025

Abstract Flooding and heavy rainfall under extreme weather conditions pose significant challenges to target detection algorithms. Traditional methods often struggle to address issues such as image blurring, dynamic noise interference, and variations in target scale. Conventional neural network (CNN)-based target detection approaches face notable limitations in such adverse weather scenarios, primarily due to the fixed geometric sampling structures that hinder adaptability to complex backgrounds and dynamically changing object appearances. To address these challenges, this paper proposes an optimized YOLOv9 model incorporating an improved deformable convolutional network (DCN) enhanced with a multi-scale dilated attention (MSDA) mechanism. Specifically,… More >

Hao Qiu, Shoudong Ni^*

CMC-Computers, Materials & Continua, Vol.84, No.2, pp. 2677-2697, 2025, DOI:10.32604/cmc.2025.064629 - 03 July 2025

Abstract In response to the missed and false detections that are easily caused by the large variety of and significant differences among aluminum surface defects, a detection algorithm based on an improved You Only Look Once (YOLO)v8n network is proposed. First, a C2f_DWR_DRB module is constructed by introducing a dilation-wise residual (DWR) module and a dilated reparameterization block (DRB) to replace the C2f module at the high level of the backbone network, enriching the gradient flow information and increasing the effective receptive field (ERF). Second, an efficient local attention (ELA) mechanism is fused with the high-level… More >