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检索条件"任意字段=Conference on Image Processing - Algorithms and Systems XI"

共 16444 条记录，以下是381-390 订阅

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Real-time moving vehicle detection in satellite videos based on hole features and motion direction information

Real-time moving vehicle detection in satellite videos based...

引用

2024 International conference on Remote Sensing, Mapping, and Geographic Information systems, RSMG 2024

作者： Yuan, Jieran Song, Beibei Sun, Wenfang School of Information Engineering Chang’an University Xi’an710018 China School of Aerospace Science and Technology Xidian University Xi’an710068 China

ISBN: (纸本)9781510685826

Capturing motion vehicle information from satellite videos is crucial for real-time traffic monitoring and emergency response. However, vehicles in satellite videos are small in size, lack detailed textural features and are easily obscured by complex backgrounds. Traditional frame differencing and background subtraction methods often lead to a high number of false positives and false negatives, while deep learning methods struggle to meet real-time processing requirements. To strike a balance between detection performance and processing efficiency, a real-time vehicle detection method combining hole features extracted from frame differencing and motion direction estimation is proposed. Initially, a multiframe image accumulation (MIA) strategy is employed to enhance the visibility of vehicle targets and suppress background noise. Subsequently, the hole features of moving vehicles are extracted by differencing adjacent accumulated images, leading to the creation of a hole model for coarse detection of moving vehicles. Then, by estimating the motion direction of vehicles and enforcing direction consistency constraints, hole matching of neighboring vehicles in motion is achieved to improve the detection accuracy. Finally, a novel region extraction algorithm that integrates target hole features and motion direction information is designed to effectively suppress false positives generated by background noise. This method exhibits superior detection performance on the VISO benchmark dataset, achieving a recognition accuracy of 89.5% while meeting real-time processing requirements with an average processing time of only 0.04 seconds per frame, ensuring both detection performance and processing efficiency. © 2024 SPIE.

关键词： image segmentation

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Multimodal Fusion of Beidou Navigation Signal in Urban Navigation Services 6

Multimodal Fusion of Beidou Navigation Signal in Urban Navig...

引用

6th IEEE International conference on Power, Intelligent Computing and systems, ICPICS 2024

作者： Wang, Juan Zhang, Li He, Yifeng Xi'an Railway Vocational & Technical Institute Xi'an China China Academy of Space Technology Xi'an China

ISBN: (纸本)9798350374315

Navigation systems play an important role in urban navigation services, but traditional Beidou navigation signals still face problems such as low positioning accuracy and poor navigation stability in multimodal fusion. This article aimed to promote the improvement of positioning accuracy by exploring the multimodal fusion of Beidou navigation signals in urban navigation services, in order to better meet the needs of urban navigation services. Firstly, the signal data of Beidou Navigation Satellite was collected in the article;then, through steps such as data preprocessing, error correction, and data editing, the Beidou navigation signal data processing was achieved, improving the accuracy of navigation;afterwards, the Beidou navigation signal was combined with a one-dimensional structure, and multimodal fusion of the navigation signal was achieved through concatenation, resulting in the final classification result;finally, to verify the effectiveness of Beidou navigation using the algorithm proposed in this article for signal fusion in urban navigation services, it was compared with traditional algorithms. Through experiments, it was found that the average positioning accuracy of the Beidou navigation system for 15 positions after signal fusion using the algorithm proposed in this article could reach 94.25%, while the traditional algorithm only had 82.52%. The study has demonstrated the effectiveness of multimodal fusion of Beidou navigation signals, providing more ideas for promoting the construction of urban smart transportation and urban management. © 2024 IEEE.

关键词： Radio navigation

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Automated Dengue Recognition and Analysis through image processing and Machine Learning 2

Automated Dengue Recognition and Analysis through Image Proc...

引用

2nd IEEE International conference on Integrated Circuits and Communication systems, ICICACS 2024

作者： Patil, Preethi N Usha, J. Dharani, Andhe RV College of Engineering Department of MCA Bangalore India

ISBN: (纸本)9798350317558

Detecting dengue fever using image processing techniques typically involves the analysis of medical images such as blood smears or tissue samples. Dengue is a viral disease transmitted by Aedes mosquitoes, and its diagnosis primarily relies on clinical symptoms, serological tests, and molecular assays. image processing can be used as a complementary tool to assist and identify the dengue virus or related disparities in the body. Dengue fever, alternatively known as break-bone fever, is a lifethreatening arboviral disease caused by the DENV virus. It is a major global health concern with an increasing incidence worldwide. The existing clinical methods for diagnosing dengue are manual, requiring significant time and labor. The present work aims to develop an automated system using machine learning and digital image analysis to detect dengue infection from blood smear images. The custom algorithms are designed to extract platelets, red blood cells, and white blood cells, and train a feature vector. By automating the analysis of blood smear images, aids healthcare professionals detect cases of dengue more efficiently, allowing for early treatment and potentially saving lives. However, it is crucial to address data quality, algorithm selection, validation, interpretability, and ethical considerations throughout the development process. © 2024 IEEE.

关键词： CIELab space Dengue DENV edge detection histogram thresholding Hough transform pixel intensity

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Research on recognition and localization method of Gomoku based on image processing 8

Research on recognition and localization method of Gomoku ba...

引用

8th International conference on Electrical, Mechanical and Computer Engineering, ICEMCE 2024

作者： Chen, Huanxi Li, Wei Southwest Forestry University School of Machinery and Transportation Kunming China

ISBN: (纸本)9798331506230

a method for recognition and localization of Gomoku based on image processing techniques is proposed in this paper. Firstly, the chessboard is recognized by image preprocessing technology, and the contour of the chessboard is extracted by means of adaptive binarization, convex packet detection and quadrilateral extraction, so as to obtain the vertices of the chessboard, and then the corners of the chessboard are obtained by computation based on the vertices of the chessboard. Subsequently, the types of pieces are identified by means of Hough transform and gray value, and the positioning of chess pieces is accomplished by comparing the positions of chess pieces and corner points. Through experimental testing, the findings demonstrate that the method introduced in this paper can successfully achieve Gomoku recognition and positioning, which serves as a reference for developing the vision systems of intelligent devices, including gaming devices. © 2024 IEEE.

关键词： Hough transforms

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Research and Optimization of Frequency Measurement algorithms Based on Monobit Receiver 8

Research and Optimization of Frequency Measurement Algorithm...

引用

8th International conference on Communication, image and Signal processing, CCISP 2023

作者： Yu, Haoxiang Wang, Jia Dai, Chen Chu, Ran Gu, Peng School of Electronic and Optical Engineering Nanjing University of Science and Technology Nanjing China Xi'an Institute of Space Radio Technology China Academy of Space Technology Xi'an China

ISBN: (纸本)9798350305838

In the design of conventional single-bit receivers, a high error rate is often observed due to interpolation direction errors near the quantized frequency points caused by the Rife algorithm. To address this issue, this study proposes an optimization technique using a mean filter. By integrating this technique with single-bit quantization and approximate kernel fast Fourier transform (FFT), a 38.4Gbps ultra-wideband single-bit digital receiver based on a single-bit analog-to-digital converter (ADC) and field-programmable gate array (FPGA) is designed. Subsequent MATLAB simulation and FPGA validation demonstrate that this receiver can reduce the frequency measurement error to within 3MHz, meeting the real-time or near real-time frequency measurement requirements for electronic warfare applications. © 2023 IEEE.

关键词： Fast Fourier transforms

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Patch based image processing for complex environment characterization 6

Patch based image processing for complex environment charact...

引用

6th IEEE International conference on image processing, Applications and systems, IPAS 2025

作者： Menier, Corentin Meurie, Cyril Guillemaille, Timothee Ruichek, Yassine Marais, Juliette Univ Gustave Eiffel COSYS-LEOST Villeneuve d'AscqF-59650 France UTBM BelfortF-90010 France

ISBN: (纸本)9798331506520

Environment analysis is a critical part of autonomous vehicle for transport applications and for passenger safety. The solutions demonstrating the greatest robustness have been integrating multiple sensors used for redundancy and refinement purposes. Vision applications have proven to offer a high degree of flexibility and performance. One particular instance of this is higlighted in vehicle localisation, which predominantly relies on GNSS-based systems for positioning calculation using propagation time measurements. However, this signal may be degraded through the environment around the vehicle, worst case being urban canyons leading to Non Line Of Sight(NLOS) scenarios or multipaths issues due to reflecting obstacles. Previous work have shown vision-based algorithms can be used to mitigate these effects. One widely studied approach relies on the segmentation of an acquired wide-angle image installed on the roof of the vehicle and oriented toward the *** the sky processing module is binary, the pipeline lack any way to express its uncertainty when applying weighting policies to the detected satellite state, which can be detrimental to the resulting positioning. In this paper, we propose a novel way of analysing wide-angle camera images, also known as fisheye images, dividing the image into patches to output the corresponding situation of each region of interest. Additionally we propose a new class to the previous sky versus non-sky segmentation, designated as mixed class and designed to serve as a fuzzy answer by the deep learning model to improve confidence to other scenarios as well as allow for new analysis policies of satellites signals. The data-driven algorithm is designed and tested on a publicly available dataset, composed of a large number of finely labelled images provided by ISAE-SUPAERO reaching a 94% accuracy. © 2025 IEEE.

关键词： image segmentation

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Reversible Data Hiding in Encrypted images based on Classic McEliece Cryptosystem 2

Reversible Data Hiding in Encrypted Images based on Classic ...

引用

2nd International conference on image processing, Computer Vision and Machine Learning, ICICML 2023

作者： Jiang, Zongbao Zhang, Minqing Di, Fuqiang Dong, Weina University of PAP Key Laboratory of Network and Information Security of PAP Engineering Shaanxi Xi'an710086 China

ISBN: (纸本)9798350331417

Aiming at the problems that the security of traditional data hiding algorithms is difficult to be guaranteed and the existing algorithms' embedded volume is restricted under quantum operation attacks, a reversible data hiding algorithm in encrypted images based on Classic McEliece cryptosystem is proposed. The image pixels are first decomposed into bit planes to generate a data stream, and then encrypted in groups using the Classic McEliece cipher algorithm. In the encryption process, the fault tolerance mechanism in its encryption algorithm is utilized to select the appropriate modulation noise composition and the mapping relationship between the secret data, and the error pattern is modulated into noise to interfere with the encryption process, so as to realize the embedding of the secret data. Finally, the marked encrypted image is obtained by using the exclusive-or encryption and scrambling encryption processes. The experimental results show that the algorithm has the reversibility of carrier recovery. Compared with the existing algorithms, this algorithm's embedded volume is advantageous, and its highest embedding rate is 4.43548 bpp, which realizes large-capacity data hiding while improving security. © 2023 IEEE.

关键词： Classic McEliece error-correcting codes high-capacity hiding reversible data hiding in encrypted images

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Analysis of Decision Tree and Random Forest algorithms for Nutrient Deficiency Classification in Citrus Leaves through image processing 17

Analysis of Decision Tree and Random Forest Algorithms for N...

引用

17th International conference on Telecommunication systems, Services, and Applications, TSSA 2023

作者： Kamelia, Lia Nurmalasari, Rin Rin UIN Sunan Gunung Djati Bandung Electrical Engineering Department Bandung Indonesia

ISBN: (纸本)9798350309164

The research presents a hybrid approach to identify and categorise nutritional deficiency syndrome in citrus leaves using image processing and machine learning. The method includes processing images, segmenting images and extracting color-Texture information. The Decision Tree and the Random Forest algorithms use various statistical measures for classification, including mean, skewness, variance, entropy, maximum probability, angular second moment, contrast, correlation, dissimilarity, energy, and homogeneity. The test results show a range of performance levels, with an accuracy of 80.28% being attained by utilising an 80:20 data ratio in the Decision Tree approach. The Random Forest method's highest accuracy, 91.25%, was reached using an 80:20 ratio. In conclusion, the accuracy of the Random Forest approach regularly beats that of the Decision Tree method. © 2023 IEEE.

关键词： Decision trees

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HVS-based AR Display image Enhancement With Delta Look-Up Table Considering Ambient Light 20

HVS-based AR Display Image Enhancement With Delta Look-Up Ta...

引用

20th International SoC Design conference (ISOCC)

作者： Cho, Donghun Lee, Hyeseong Lee, Jeonghun You, Jaehee Hongik Univ Integrated Syst Chip Seoul South Korea

ISBN: (纸本)9798350327038

Based on human visual systems, image processing algorithms, and efficient hardware implementation methodologies are proposed to optimize the image qualities of AR displays according to the changes in ambient lights. To this end, methods are described to improve the image qualities perceived by humans. In addition, the delta look-up table is presented to minimize the number of additional circuits without significant changes in existing hardware. HOSA, an image quality assessment based on the human visual system is used to verify the image qualities for the extreme ambient light conditions.

关键词： image quality enhancement AR display Ambient light Human visual system Delta LUT

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A Near-Duplicate Video Cleaning Method Based on AFENet Adaptive Clustering 8

A Near-Duplicate Video Cleaning Method Based on AFENet Adapt...

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8th International conference on Intelligent Computing and Signal processing, ICSP 2023

作者： Fu, Yan Duan, Rui Ye, Ou Xi'an University of Science and Technology College of Computer Science and Technology Xi'an China

ISBN: (纸本)9798350302455

In recent years, with the growth of video data, problems such as video quality degradation and copyright protection difficulties have arisen due to the redundancy of a large number of near-duplicate video data. Aiming at the problems of insufficient video feature extraction and low accuracy of clustering algorithms in existing near-duplicate video cleaning algorithms. This paper proposes a near-duplicate video cleaning method based on AFENet adaptive clustering. The method in this paper mainly includes two parts: Firstly, in the feature extraction stage, this paper adopts the spatiotemporal features of video and enhances the features of salient objects in each frame of image, enhancing the feature expression ability of video;Secondly, in the video cleaning stage, an adaptive feature distance threshold SFD-Means clustering algorithm is proposed, and a clustering optimization function is designed to overcome the defect of the original FD-Means algorithm that is too sensitive to threshold selection. Experimental results show that our proposed method has high recognition accuracy and cleaning performance, effectively improving the quality of video data. © 2023 IEEE.

关键词： Feature extraction

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