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3rd International conference on information and communication Technologies

作者： Nasr, Abdulbaset M. Ramli, Abd Rahman Hamiruce, Mohammad Subramaniam, Shamala K. Univ Putra Malaysia Inst Adv Technol Robot Lab Serdang 43400 Selangor Darul Malaysia

ISBN: (纸本)9781424417513

It is well known that speech production and perception process is inherently bimodal consisting of audio and visual components. Recently there has been increased interest in using the visual modality in combination with the acoustic modality for improved speech processing. This field of study has gained the title of audio-visual speech processing. Lip movement recognition, also known as lip reading, is a communication skill which involves the interpretation of lip movements in order to estimate some important parameters of the lips that include, but not limited to, size, shape and orientation. In this paper, we represent a hybrid framework for lip reading which is based on both audio and visual speech parameters extracted from a video stream of isolated spoken words. The proposed algorithm is self-tuned in the sense that it starts with an estimations of speech parameters based on visual lip features and then the coefficients of the algorithm are fine-tuned based on the extracted audio parameters. In the audio speech processing part, extracted audio features are used to generate a vector containing information of the speech phonemes. These information are used later to enhance the recognition and matching process. For lip feature extraction, we use a modified version of the method used by F. Huang and T. Chen for tracking of multiple faces. This method is based on statistical color modeling and the deformable template. The experiments based on the proposed framework showed interesting results in recognition of isolated words.

关键词： Speech processing Image processing Lip reading

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Investigate Bidirectional Functional Brain Networks Using Directed information

Investigate Bidirectional Functional Brain Networks Using Di...

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14th Annual Summit and conference of the Asia-Pacific-Signal-and-information-processing-Association (APSIPA ASC)

作者： Li, Qiang Univ Valencia Valencia Spain

ISBN: (数字)9786165904773

ISBN: (纸本)9786165904773

Perception processing in the human brain is mediated by functional connectivity among brain areas. To a certain extent, functional connectivity builds a communication channel among brain regions and even supports our perception and consciousness functions. However, the flow of information doesn't always go in the same direction between different parts of the brain, and it also uses bidirectional exchanges of information. The role of bidirected functional connectivity in the brain is still not well explored so far. More narrowly, we want to know how bidirectional communication regions in the different brain areas help with information processing. To do this, we used directed information to quantify information exchange from simulation neural signals and real neural data that includes each part of the visual cortex region, and it showed that directed information can discover causal effects in both simulation and real experiments. All in all, in this study, we tried to understand information processes with bidirected functional connectivity and explored both feedforward and feedback information flow in the brain regions. On the one hand, we discovered feedback functional connectivity between visual regions, such as LRSC, LLOC, LOPA, and RPPA. Biologically speaking, this makes sense because natural images, such as objects, places, or more complex images, are typically represented in high-level visual regions. On the other hand, we also found that there is information flow between the scene-selective areas, e.g., OPA, PPA, RSC, and object-selective regions, e.g., LOC. As a result, we can gain a better understanding of how information is shared and communicated from an information-theoretical perspective with directed information.

关键词： visualization Image processing Neurons communication channels Brain modeling Data models Entropy

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Interpretable agent communication from scratch (with a generic visual processor emerging on the side) 35

Interpretable agent communication from scratch (with a gener...

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35th Annual conference on Neural information processing Systems (NeurIPS)

作者： Dessi, Roberto Kharitonov, Eugene Baroni, Marco Facebook AI Res Paris France Univ Pompeu Fabra Barcelona Spain ICREA Barcelona Spain

ISBN: (纸本)9781713845393

As deep networks begin to be deployed as autonomous agents, the issue of how they can communicate with each other becomes important. Here, we train two deep nets from scratch to perform large-scale referent identification through unsupervised emergent communication. We show that the partially interpretable emergent protocol allows the nets to successfully communicate even about object classes they did not see at training time. The visual representations induced as a by-product of our training regime, moreover, when re-used as generic visual features, show comparable quality to a recent self-supervised learning model. Our results provide concrete evidence of the viability of (interpretable) emergent deep net communication in a more realistic scenario than previously considered, as well as establishing an intriguing link between this field and self-supervised visual learning.(1)

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基于5G和融合通信技术的应急指挥调度系统

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长江信息通信 2025年第1期38卷 234-237页

作者：张聚明杨光任燕邱涛广州广哈通信股份有限公司广东广州510663

在充分理解应急场景需求和智慧应急管理新格局发展趋势的情况下,文章基于5G和多制式一体化融合通信的应急组网技术,采用分离部署设计,将系统分为后方应急指挥中心业务调度处理系统、前方指挥部通信系统和应急现场。系统支持5G高清音视... 详细信息

在充分理解应急场景需求和智慧应急管理新格局发展趋势的情况下,文章基于5G和多制式一体化融合通信的应急组网技术,采用分离部署设计,将系统分为后方应急指挥中心业务调度处理系统、前方指挥部通信系统和应急现场。系统支持5G高清音视频通话,基于边缘智能计算框架支持边云一体协同,支持“一张图”可视化展示、全面感知预警风险隐患,实现音视频调度、会议会商、视频融合、GIS地图定位等多媒体指挥调度,可以多级部署、协同调度,解决应急救援现场各种通信手段互联互通差、缺乏联动机制、资源共享欠缺等弊端,全面提高应急指挥调度响应效率。

关键词：智慧应急 5G 融合通信应急指挥调度

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Seeing objects as face modulates visual search performance

Seeing objects as face modulates visual search performance

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Annual Summit and conference of Asia-Pacific-Signal-and-information-processing-Association (APSIPA)

作者： Takahashi, Kohske Watanabe, Katsumi Univ Tokyo Res Ctr Adv Sci & Technol Tokyo 1138654 Japan

ISBN: (纸本)9786163618238

Some products are explicitly or implicitly designed so that objects can be seen as a face;this will possibly support a fluent human-environment communication. The present study investigated the effects of seeing objects as face on human's visual search performance by means of psychological experiments. The participants were asked to search a target among distractors on a computer display as quickly as possible. The target and distractors differed in the vertical direction. The participants were randomly assigned to a face task or a triangle task. In the face task, the visual stimulus was either a cartoon face or three dots arranged in triangle that could be seen as a face, and the participants were instructed to search a upright or inverted face among distractors. In the triangle task, the visual stimulus was either the three dots same as the face task or a line-drawing triangle, and the participants were instructed to search a triangle. In both tasks, two types of stimuli were randomly presented during the trial sequence. We found that visual search for the three-dot target was slower in the face task than in the triangle task. However, when the target stimulus was informed immediately before each trial, the results were reversed;visual search for the three-dot target in the face task was faster than in the triangle task. These results suggest that, even if the target stimulus par se is identical, seeing the target as face modulates visual search performance, and the effects interact with expectation or preparation of the subsequent target.

关键词： computer displays face recognition neurophysiology visual perception cartoon face computer display face modulates human visual search performance human-environment communication line-drawing triangle psychological experiments three-dot target visual search performance visual stimulus Face Modulation Neuroimaging Search problems Switches Uncertainty visualization

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On the information-theoretic assessment of visual communication

On the information-theoretic assessment of visual communicat...

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Proceedings 1996 International conference on Image processing, ICIP'96

作者： Huck, Friedrich O. Fales, Carl L. Rahman, Zia-ur NASA Langley Research Cent Hampton VA United States

This paper deals with the extension of information theory to the assessment of visual communication from scene to observer. The mathematical development rigorously unites the electro-optical design of image gathering and display devices with the digital processing algorithms for image coding and restoration. Results show that: End-to-end system analysis closely correlates with measurable and perceptual performance characteristics, such as data rate and image quality, respectively. The goal of producing the best possible image at the lowest data rate can be realized only if (a) the electro-optical design of the image-gathering device is optimized for the maximum-realizable information rate and (b) the image-restoration algorithm properly accounts for the perturbations in the visual communication channel.

关键词： visual communication

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Image Inpainting Using Iterative Methods

Image Inpainting Using Iterative Methods

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4th International conference on Signal processing and communication Systems (ICSPCS)/12th International Symposium on DSP and communication Systems (DSPCS)/9th Workshop on the Internet, Telecommunications and Signal processing (WTSP)

作者： Marvasti, Neda Barzegar Marvasti, Farrokh Pourmohammad, Ali Sharif University of Technology Iran Amirkabir University of Technology Iran

ISBN: (纸本)9781424479078

Noise interference and data loss are two major problems that affect the processing results of image data transmission and storage. Restoration of the lost information of an image based on the existing information is the essence of inpainting. In this paper a new algorithm based on Sample and Hold interpolation and Iteration is proposed for reconstructing damaged images from existing regions and is compared to some other methods. The experimental results show the superiority of the visual quality and PSNR performance of the proposed method. It is observed that this approach can efficiently fill in the holes with visually plausible information.

关键词： image data transmission image denoising image inpainting image restoration iterative methods iterative methods noise interference sample and hold interpolation visual communication

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Design and Implementation of visual Electronic Commerce Based on Browser/Server Architecture

Design and Implementation of Visual Electronic Commerce Base...

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The 2011 International conference on Advanced Materials and information Technology processing(AMITP 2011)

作者： HU Bing DENG Chao YE Juan School of Journalism and Communication South China University of Technology

ISBN: (纸本)9783037851579

B/S mode don't need client download any software as long as client installed a browser, and can implement multipoint to multipoint multimedia communication. The visual e-commerce platform applied video technology in e-commerce field to solve the credibility problem well. This paper above all introduced the technology framework of the visual e-commerce platform, furthermore shown two kinds of interface mode of the platform, induced the innovation places of the e-commerce platform in end, namely platform based on B/S architecture, simple e-commerce mode and operation easily, visual and interactive.

关键词： video technology,electronic commerce,browser/server architecture,visual

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Application Method of Computer Image processing Technology in visual communication Design 6

Application Method of Computer Image Processing Technology i...

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6th International conference on Computer information Science and Application Technology, CISAT 2023

作者： Feng, Peng Hubei University of Technology China

ISBN: (纸本)9781510668546

By utilizing computer graphics and image processing technology, we can effectively enhance the effectiveness of visual communication design. Specifically, using the principle of three primary colors to create a set of vector functions can more accurately calculate the partition model for visual communication. Firstly, we need to comprehensively consider all the characteristics related to the image, and then encode them in an orderly manner to meet our requirements. Secondly, the appropriate hyperplane is selected according to these characteristics to adjust the visual transmission mode. Ultimately, some creative image processing techniques are needed to improve their quality. After systematic research, it has been found that using visual communication design methods can achieve excellent results. It has strong stability, flexibility, and can exert the best communication ability in four types of complex images, greatly improving the level of precision in communication. In addition, this method further clarifies the application direction and methods of image processing technology, in order to provide theoretical reference for optimizing visual communication application solutions. © 2023 SPIE.

关键词： visual communication

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Design of 3D Image visual communication System Based on Computer Image Technology 4th

Design of 3D Image Visual Communication System Based on Comp...

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4th International conference on Machine Learning, Image processing, Network Security and Data Sciences (MIND)

作者： Gou, Shuangxiao Mei, Ling Chongqing Univ Arts & Sci Coll Fine Arts & Design Chongqing 402160 Peoples R China Chongqing Water Resources & Elect Engn Coll Large Data Inst Chongqing 402160 Peoples R China

ISBN: (纸本)9783031243660;9783031243677

Computer imaging technology is a kind of use of digital photography, using a computer as amedium to realize interactive communication and interaction between humans and machines through the collection and processing of images and the editing and storage of graphic information. The purpose of this paper to study the design of the 3D image visual communication system based on computer image technology is to improve the mastery of 3D image technology and design the visual communication system. This article mainly uses experimental and comparative methods to analyze the feature extraction situation of the 3D image visual communication system, and finds that the error of the improved RANSAC algorithm in image feature extraction is about 54%, while the unimproved algorithm and other algorithms The error is greater. This shows that the improved algorithm proposed in this paper is incomparable in the 3D image visual communication system.

关键词： Computer image technology 3-dimensional image visual communication System design

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