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检索条件"机构=Key Laboratory of Acoustic Visual Technology and Intelligent Control"

共 143 条记录，以下是21-30 订阅

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Perception of Image Based on the psychophyslcal Property

Perception of Image Based on the psychophyslcal Property

引用

2016 IEEE Information technology,Networking,Electronic and Automation control Conference(ITNEC 2016)

作者： Jiang Wei Zhang Hua Zhang Xing-Ru Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Information Engineering School Communication University of China

ISBN: (纸本)9781467391955

The paper presents a limit analysis of psychophyslcal methods which is designed for the changes in visual perception of when visual stimulus appear alternately. The purpose of this experiment is to reveal the quantizing relationship between stimulate and feeling response. Meanwhile, we studied the perception of image on visual information considering the color psychological attributes to clarify the changes of visual perception when image information presented by limit analysis approach. Based on the psychological scale, the test images were divided into three types using psychophyslcal analysis. The test results of psychophyslcal methods also were validated, focusing the verifications on the correctness of the main image date behind the limit analysis. The images data is derived from entropy, moment of inertia, local balance, and correlation. Both the two kinds of analysis arrived at the same conclusion, which turned out that the image perception happens in emotional process and depends upon the psychophyslcal property and signal superposition response.

关键词： image psychophyslcal methods visual impression physical features

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Study on LED Color Mixing for Stage Lighting Based on Locus Fitting of Blackbody 3

Study on LED Color Mixing for Stage Lighting Based on Locus ...

引用

3rd IEEE International Conference on Cloud Computing and Internet of Things, CCIOT 2018

作者： Ren, Hui Li, Shuwei Sun, Rongshu Su, Zhibin School of Information Engineering Communication University of China Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Beijing Key Laboratory of Modern Entertainment Technology Beijing100024 China

ISBN: (数字)9781538671412

ISBN: (纸本)9781538671412

Aiming at overcoming the defects of basic lighting color rendering for LED stage lighting, this paper establishes a new mixing light method with RGBW four-color mixing model. Compared with traditional tricolor light mixing model, it uses the mixing light of white as the fourth input, with the three-basic color of red, green and blue to obtain a new mixing method. Then the original coefficients of RGBW are optimized after adjusting the two parameters of relative spectral power distribution and illuminance of mixing light for locus fitting of blackbody. Finally, better color rendering of white light can be acquired. By the MATLAB simulation and field testing, experimental results have shown that the proposed method will achieve ideal LED lighting performance, which is convenient for color management of lighting control system in modern theatre. © 2018 IEEE.

关键词： Light emitting diodes

来源：评论

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Study on LED color mixing for stage lighting based on locus fitting of blackbody

Study on LED color mixing for stage lighting based on locus ...

引用

2017 International Conference on Computer technology, Electronics and Communication, ICCTEC 2017

ISBN: (纸本)9781538657843

Aiming at overcoming the defects of basic lighting color rendering for LED stage lighting, this paper establishes a new mixing light method with RGBW four-color mixing model. Compared with traditional tricolor light mixing model, it uses the mixing light of white as the fourth input, with the threebasic color of red, green and blue to obtain a new mixing method. Then the original coefficients of RGBW are optimized after adjusting the two parameters of relative spectral power distribution and illuminance of mixing light for locus fitting of blackbody. Finally, better color rendering of white light can be acquired. By the MATLAB simulation and field testing, experimental results have shown that the proposed method will achieve ideal LED lighting performance, which is convenient for color management of lighting control system in modern theatre. © 2017 IEEE.

关键词： Light emitting diodes

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Color-guided depth recovery based on ZED

Color-guided depth recovery based on ZED

引用

2017 International Conference on Computer technology, Electronics and Communication, ICCTEC 2017

作者： Ren, Hui Gao, Nan Su, Zhibin School of Information Engineering Communication University of China Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Beijing Key Laboratory of Modern Entertainment Technology Beijing100024 China

ISBN: (纸本)9781538657843

Depth maps obtained by RGB-D cameras such as ZED are noisy, and there are invalid areas where depth values absent in the maps, which will affect the subsequent improved processing. This paper investigates the restoration and optimization of degraded depth image method based on RGBD data captured by ZED by means of selective filtering and conditional auto-regressive model with edge constraints. Firstly, we divide invalid areas into two categories, including the internal invalid areas caused by reflection and invalid edge caused by occlusion. Then, we use corresponding median filter and mean filter in the different selective areas to obtain the initial restored depth map with no empty area. The edges of objects contain massive information, therefore, an adaptive auto-regressive (AR) model is used to further optimize the depth of the edge area. Additionally, we add the edge information to the sampled image to maintain local detail. Experiments show that with the proposed method we can recover the depth data with high accuracy and effectiveness. © 2017 IEEE.

关键词： Median filters

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Implementation of Music Playing WEB Site with Asychronous Visit Mode Based on Set-top Box

Implementation of Music Playing WEB Site with Asychronous Vi...

引用

2016联合国际信息技术、机械与电子工程国际会议

作者： Xie Weihua Wang Yongbing Information Engineering School Communication University of China Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Beijing Key Laboratory of Modern Entertainment Technology

ISBN: (纸本)9781510830028

Network music is an important form that people listen to music now, in PC desktop system, browser with HTML5 and the multimedia plugin can imply very good online selection ways and listen to the program with beautify pages, but in the set-top box system, it is extremely different. In this paper, we use a network set-top box with embedded browser system to realize an asynchronous access mode of music website design, the system uses the JSE to achieve music file playback controls, at the same time, the online transcoding system, on the server side for transcoding to improve on the different types of music file playback compatibility, and with an asynchronous access pattern method, time-consuming part is transferred into the background, and the browser Ajax method for interactive prompting. The experimental results show that the system has better interactive performance with respect to the normal music website which is usually synchronized visit ways, and improve the user's listening and viewing experience.

关键词： set-top box music play asychronous visit mode online transcode web site

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Perception of image based on the psychophysical property

Perception of image based on the psychophysical property

引用

2016 IEEE Information technology, Networking, Electronic and Automation control Conference, ITNEC 2016

作者： Wei, Jiang Hua, Zhang Xing-Ru, Zhang Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture Beijing China Information Engineering School Communication University of China Beijing China

ISBN: (纸本)9781467391924

The paper presents a limit analysis of psychophysical methods which is designed for the changes in visual perception of when visual stimulus appear alternately. The purpose of this experiment is to reveal the quantizing relationship between stimulate and feeling response. Meanwhile, we studied the perception of image on visual information considering the color psychological attributes to clarify the changes of visual perception when image information presented by limit analysis approach. Based on the psychological scale, the test images were divided into three types using psychophyslcal analysis. The test results of psychophyslcal methods also were validated, focusing the verifications on the correctness of the main image date behind the limit analysis. The images data is derived from entropy, moment of inertia, local balance, and correlation. Both the two kinds of analysis arrived at the same conclusion, which turned out that the image perception happens in emotional process and depends upon the psychophyslcal property and signal superposition response. © 2016 IEEE.

关键词： Behavioral research

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Research on Risk Analysis for Lighting and Sound Equipment of Temporarily Constructed Stage

Research on Risk Analysis for Lighting and Sound Equipment o...

引用

2023 International Conference on Culture-Oriented Science and technology, CoST 2023

作者： Zhang, Xueying Su, Zhibin Wang, Huiqin Jiang, Yujian School of Information and Communication Engineering Communication University of China China Ministry of Culture and Tourism Key Laboratory of Acoustic Visual Technology and Intelligent Control System Beijing China

ISBN: (纸本)9798350357998

With the increasing demand for stage performance activities, the quality and safety of performance equipment, especially for the temporarily constructed stage, have become important topics that cannot be ignored. In order to enhance the safety of performance equipment and improve the service quality, this article mainly conducts risk analysis and safety assessment on the lighting and sound equipment for stage of temporary perform site without protective measures, and uses Analytic Hierarchy Process (AHP) with Fuzzy Comprehensive Evaluation (FCE) to conduct risk analysis and evaluation. The calculated risk level of stage lighting and sound equipment is given, and relevant safety measures are proposed to reduce the potential risks. © 2023 IEEE.

关键词： Analytic hierarchy process

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Research on Safety Integrity Level Assessment for Stage Machinery of Temporary Performance Site

Research on Safety Integrity Level Assessment for Stage Mach...

引用

2023 International Conference on Culture-Oriented Science and technology, CoST 2023

作者： Hu, Yubin Su, Zhibin Wang, Zixiao Wang, Huiqin School of Information and Communication Engineering Communication University of China China Ministry of Culture and Tourism Key Laboratory of Acoustic Visual Technology and Intelligent Control System Beijing China

ISBN: (纸本)9798350357998

The safety assessment of stage performing arts equipment for the temporary site is an urgent task to be solved. In this paper, the lifting equipment is chosen for risk analysis, safety circuit identification and safety integrity level (SIL) calculation. The Hazard and Operability Study(HAZOP) and Layer Of Protection Analysis(LOPA)-based method is studied to get the expected SIL level of the related safety loops. In addition, the fault tree and Markov model methods are used to verify the actual SIL level under the existing loop structure respectively. This study provides the theory and data basis for the development of safety requirements and evaluation standards for the temporary theater of stage machinery, which has certain theoretical significance and application value. © 2023 IEEE.

关键词： Risk analysis

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Stage actor positioning method based on realsense point cloud

Stage actor positioning method based on realsense point clou...

引用

2019 International Joint Conference on Information, Media, and Engineering, IJCIME 2019

作者： Lv, Chaohui Yang, Lexuan Li, Min Yin, Jun School of Information and Communication Engineering Communication University of China China Key Laboratory of Acoustic Visual Technology and Intelligent Control System Ministry of Culture and Tourism Beijing China

ISBN: (纸本)9781728155869

A novel and convenient method for human positioning based on computer vision is proposed. The new camera Realsense D435 from Intel is used to provide richer and more effective visual information. The positioning problem can be simplified to the conversion problem between point cloud and space coordinate system. Experimental results indicated that only several test points were needed to establish the conversion relationship between the two coordinate systems, thereby obtaining the position of the person. The accuracy meets the demand of the stage performance. © 2019 IEEE.

关键词： Computer vision

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The Algorithm of Sequential Music Recommendation Based on BERT

The Algorithm of Sequential Music Recommendation Based on BE...

引用

2023 International Conference on Culture-Oriented Science and technology, CoST 2023

作者： Li, Zhen Li, Kaiyue Yang, Qingqing Ministry of Culture and Tourism Key Laboratory of Acoustic Visual Technology and Intelligent Control System China Communication University of China Beijing Key Laboratory of Modern Entertainment Technology China Communication University of China Beijing China

ISBN: (纸本)9798350357998

Music recommendation algorithms aim to predict the songs that users might be interested in based on various factors, such as their listening history. The best existing method is Bert_Music, a sequential music recommendation model based on Bidirectional Encoder Representation from Transformer (BERT). This model leverages user sequence context information to improve recommendation performance. However, Bert_Music only considers the sequence information of songs and ignores their content characteristics. To address this limitation, we propose an improved version of Bert_Music, which is a sequential music recommendation model based on Bidirectional Encoder Representation from Transformer with tag information (BERT_MUSIC_T), uses song ID (Identity) and tag information to make more accurate recommendations. We compared the performance of Bert_Music_T with that of the Bert_Music model on the *** dataset and found that the Precision has increased by up to 2.85%. These results prove the validity of our method. © 2023 IEEE.

关键词： Recommender systems

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