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检索条件"任意字段=Conference on Optical and Digital Image Processing"

共 5522 条记录，以下是1-10 订阅

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Robust image Watermarking Algorithm Based on Residual Neural Networks

Robust Image Watermarking Algorithm Based on Residual Neural...

引用

2024 International conference Optoelectronic Information and optical Engineering, OIOE 2024

作者： Wang, Yunfei Lu, Gehao School of Information Science Yunnan University Kunming650500 China

ISBN: (数字)9781510688209

ISBN: (纸本)9781510688193

With the development of the Internet, information carriers and communication methods have become diversified. As an important carrier for obtaining information, images are easily copied and tampered with during the communication process. digital watermarking technology is an effective technology to protect image copyrights. In recent years, with the development of artificial intelligence, scholars have begun to apply deep learning technology to digital watermarking technology. This article proposes a digital watermarking technology based on residual neural networks, which consists of host image processing network, watermark processing network, watermark embedding network, and watermark extraction network. Experiments show that the watermarking algorithm can effectively resist common attacks on images, has good robustness, and the image will not change greatly after embedding the watermark, so it has good invisibility. © 2025 SPIE.

关键词： Network embeddings

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A Survey of Learning Based No Reference image Quality Assessment

A Survey of Learning Based No Reference Image Quality Assess...

引用

2024 International conference Optoelectronic Information and optical Engineering, OIOE 2024

作者： An, Botao Zhou, Hongwei Peng, Peiran Zhang, Lei Ren, Shubo Li, Jianan Xu, Tingfa School of Optics and Photonics Beijing Institute of Technology China Institute of Telecommunication and Navigation Satellites China Academy of Space Technology China

ISBN: (数字)9781510688209

ISBN: (纸本)9781510688193

digital images are captured by various fixed and mobile cameras, compressed with traditional and novel techniques, transmitted through different communication channels, and stored in various storage devices. Distortions can occur at each stage of the image acquisition, processing, transmission and storage pipeline, resulting in loss of perceptual information and degradation of quality. Therefore, image quality assessment is becoming increasingly important in monitoring image quality and ensuring the reliability of image processing systems. And as the most widely applicable and usable of the image quality assessment fields, a large number of learning-based no-reference quality assessment studies have been conducted in recent years. In this survey, we provide an up-to-date and comprehensive review of these studies. Specifically, this paper presents recent advances in the field of deep learning-based no-reference quality assessment and provides an overview of benchmark databases for deep learning-based no-reference quality assessment tasks as well as assessment metrics and the backbone networks commonly used in quality assessment tasks. © 2025 SPIE.

关键词： digital image storage

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Realization of digital Protection Algorithm of National Traditional Culture Based on Virtual Reality Technology

Realization of Digital Protection Algorithm of National Trad...

引用

2024 International conference on Mechatronics and Intelligent Control, ICMIC 2024

作者： Chen, Hongxia Hou, Lanbao School of Literature and Media Jingchu University of Technology Jingmen448000 China School of Mathematics and Physics Jingchu University of Technology Jingmen448000 China

ISBN: (数字)9781510686847

ISBN: (纸本)9781510686830

National traditional culture and traditional technology are the products of historical precipitation and indispensable precious resources. The establishment of national cultural database is of great significance for the protection and inheritance of cultural heritage. Aiming at the specific functional requirements of traditional cultural digital protection system for image segmentation and retrieval, this paper focuses on the common algorithms of image segmentation and feature matching. This paper analyzes and compares the applicability and processing effect of each algorithm in ethnic patterns. EGBIS image segmentation algorithm and shape context feature matching algorithm are used to achieve high precision image processing. This paper designs and implements a national culture retrieval system that meets the application needs. Combined with the image characteristics of ethnic patterns and the application requirements of the system, this paper defines the concepts of source images, primitives and hyperprimitives, and establishes a relational database based on them. This study has laid a certain theoretical foundation for the study of digital inheritance of national culture. © 2025 SPIE.

关键词： image segmentation image retrieval Databases Feature extraction image processing algorithms and systems image processing Visualization Distance measurement Virtual reality Visual analytics

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Design of optical testing turntable data acquisition system based on LabVIEW 16

Design of optical testing turntable data acquisition system ...

引用

16th International conference on Signal processing Systems, ICSPS 2024

作者： Jiang, Mingyang Liu, Xiang Qiao, Yajie Aerospace Life-Support Industries Ltd. China

ISBN: (纸本)9781510689251

Aiming at the problems of complicated information processing and error analysis steps and low efficiency of the existing turntable data acquisition system, an optical testing turntable data acquisition system based on LabVIEW is developed. The system uses Compact RIO hardware, which can be directly programmed by FPGA to achieve data input, output, and processing. The NI 9401 digital IO module and SEA 9510 communication module with high update rate are designed, which can respond to the external trigger signal and the high-speed image synchronization signal within 100ns, and ensure that the angle output of the encoder and the synchronization error of the high-speed image are within the required range. LabVIEW development platform is used to write system software to realize data processing, display and storage. The test results show that the acquisition system runs stably and can achieve high-level synchronization output between the encoder angle data and high-speed images, with a synchronization error of less than 0.5ms. The software realizes the simultaneous acquisition and storage mode, which verifies the accuracy and efficiency of the data collected by the turntable. © 2025 SPIE.

关键词： optical testing

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Robust image watermarking scheme based on orientation of local image texture 16

Robust image watermarking scheme based on orientation of loc...

引用

16th International conference on Signal processing Systems, ICSPS 2024

作者： Li, Qiutong Zhang, Qiyuan Yuan, Xiaochen Faculty of Applied Sciences Macao Polytechnic University China

ISBN: (纸本)9781510689251

With the rapid development of big data and Internet of Things (IoT), more and more digital products are emerging. However, this has also brought about a growing problem of copyright violation. digital image robust watermarking technology can effectively resist various attacks and protect image copyright. Most of the existing robust watermarking schemes generally adopt the global embedding method and often ignore the texture orientation of the cover image itself leading to poor imperceptibility and robustness. In this paper, we propose an innovative digital image robust watermarking scheme. Firstly, we conduct the Oriented FAST and Rotated BRIEF (ORB) and Speeded Up Robust Features (SURF) feature point detection algorithms, combined with the texture complexity of the cover image to select the most complex texture region as the local embedding location of the watermark. Secondly, to further improve the robustness of the watermarked image, we conduct the Discrete Cosine Transform (DCT) adaptive inter-block correlation algorithm. We embed the watermark into the cover image by adjusting the difference between the image embedding block and the adjacent block. We have tested a dataset containing multiple images, in which various common attacks are simulated and multiple cover images are tested. By comparing the experimental results, our scheme performs better regarding robustness and imperceptibility. © 2025 SPIE.

关键词： Cosine transforms

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Research on the epipolarity analysis of the images captured by linear array sensors circular scanning perpendicular to the orbit

Research on the epipolarity analysis of the images captured ...

引用

2024 International conference on Remote Sensing and digital Earth, RSDE 2024

作者： Zhang, Xufeng Wang, Peng Xue, Wu Liu, Xian Space Engineering University 1 Bayi Beijing101406 China

ISBN: (数字)9781510688223

ISBN: (纸本)9781510688216

The images from the linear array sensors circular scanning perpendicular to orbit have the properties of super wide breadth and high resolution, which also comes with the problem of stereo matching. One method to improve the reliability and efficiency of stereo matching is to search the same one point in linear array. Refer to epipolarity models of linear pushbroom image and plane array remote sensing image, we construct the epipolarity model of the linear array circular scanning image based on a strict imaging model. In this work, we obtain the epiplolarity of the images captured by the linear array sensors circular scanning perpendicular to the orbit using these models. The result shows that the epipolarity of the circular scanning image presents different shapes in different region, including most part with line, a few with parabola and hyperbola in the boundary. These conclusions could provide the progress of three dimension reconstruction. © 2025 SPIE.

关键词： Stereo image processing

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Real-time Generation of digital Chinese Calligraphy Based on Geometric Continuity 16

Real-time Generation of Digital Chinese Calligraphy Based on...

引用

2024 16th International conference on Graphics and image processing, ICGIP 2024

作者： Liu, Yingbin Beijing Language and Culture University China

ISBN: (数字)9781510688780

ISBN: (纸本)9781510688773

This paper presents a method to simulate the dynamic handwriting process by constructing visually smooth stroke trajectories and utilizing variated stroke width to highlight Chinese calligraphy characteristic in real time. Based on the input skeleton data, a piecewise cubic Bézier curve is firstly created on the fly to define the writing trajectory for each stroke. The continuity condition of the resulting curve is relaxed to G1 at joint points in exchange for the freedom of adjusting control points to keep the trajectory curve visually smooth. A practical and efficient stroke width model is also invented by analyzing handwriting data to enhance the Chinese calligraphy features, with writing speed and acceleration data taken into account. Finally, an image-based rendering technique is implemented to depict the resulting calligraphies in real time, which is applicable to various digital devices at a low computational cost. This approach has shown promising results in many experiments, with Chinese calligraphy characteristics demonstrated successfully. © 2025 SPIE.

关键词： Rendering (computer graphics)

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Research on GSEm-Net detection method of embroidery pattern lightweight operator for digital protection of Gansu intangible cultural heritage Long Embroidery 2

Research on GSEm-Net detection method of embroidery pattern ...

引用

2nd International conference on Big Data, Computational Intelligence, and Applications, BDCIA 2024

作者： Ba, Yuanxiao Lanzhou Vocational Technical College Gansu Lanzhou China

ISBN: (纸本)9781510689053

The digital image of embroidery has complex edge structure and high repetition rate texture features. Post-processing such as region detection is a challenging task. A long embroidery image data set for learning and training is constructed. Based on the deep network and multi-scale detection structure, the lightweight detection network model GSEm-Net is introduced to detect the long embroidery pattern in real time. Experiments show that compared with yoloV8, the detection accuracy of this method is equivalent, and the detection speed is 1.5 times that of yoloV8, but the generated model is smaller, and it is easier to deploy to low-computing edge devices, which effectively improves the target detection efficiency. © 2025 SPIE.

关键词： Convolutional neural networks

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MMCD: Memory-Based Multimodal Change Detection

MMCD: Memory-Based Multimodal Change Detection

引用

2025 IEEE International conference on Acoustics, Speech, and Signal processing, ICASSP 2025

作者： Zhang, Limeng Zhang, Zenghui Wu, Juanping Guo, Weiwei Zhang, Tao Yu, Wenxian Shanghai Jiao Tong University Shanghai200240 China Center of Digital Innovation Tongji University Shanghai200092 China

ISBN: (纸本)9798350368741

Single-modal change detection methods based on optical or Synthetic Aperture Radar (SAR) images face challenges such as degradation due to adverse weather or noise interference. In contrast, multimodal change detection struggles with significant domain gaps between different modalities. Inspired by the SAM2 model's temporal memory mechanism for video segmentation, this paper introduces the concept of memory into change detection and proposes a novel approach called Memory-based Multimodal Change Detection (MMCD). By treating change detection as a temporal problem and modeling remote sensing images as video sequences, the proposed method integrates historical optical images with current SAR images to enhance detection accuracy. Additionally, a difference map enhancement module is introduced to mitigate false changes caused by modality discrepancies. Experimental results show that this approach achieves state-of-the-art performance in multimodal change detection, demonstrating the effectiveness of the proposed method. © 2025 IEEE.

关键词： difference enhancement Memory attention multimodal change detection optical image assistance

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Quantum image encryption algorithm based on generalized Arnold transform and Lorenz chaotic systems

Quantum image encryption algorithm based on generalized Arno...

引用

2024 International conference Optoelectronic Information and optical Engineering, OIOE 2024

作者： Zhang, Ruqing School of Information Engineering Shanghai Maritime University Shanghai201306 China

ISBN: (数字)9781510688209

ISBN: (纸本)9781510688193

With the rapid development of the internet and information technology, the traditional encryption methods suffer from drawbacks such as poor processing capacity and low security, making them vulnerable to attacks. This paper presents a hybrid encryption algorithm that combines the Lorenz chaotic system and the generalized Arnold transform to enhance information security and confidentiality in digital images. The proposed quantum encryption scheme involves two stages: interfering with pixel coordinate information and grayscale values using the generalized Arnold transform, followed by spatial domain scrambling of pixel positions using the Lorenz chaotic system. MATLAB simulations demonstrate the effectiveness of this algorithm in achieving the desired confusion and diffusion of pixel values, making it a superior encryption method for cryptography. © 2025 SPIE.

关键词： Encryption algorithms

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