Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)最新文献

Intelligent rate control for MPEG-4 coders 智能速率控制的MPEG-4编码器

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 2000-10-01 DOI: 10.1109/IPMM.1999.791559

G. Park, J. H. Park, Y. Lee

{"title":"Intelligent rate control for MPEG-4 coders","authors":"G. Park, J. H. Park, Y. Lee","doi":"10.1109/IPMM.1999.791559","DOIUrl":"https://doi.org/10.1109/IPMM.1999.791559","url":null,"abstract":"The multimedia technology, which will lead in the 21st century, will depend on how to manipulate visual information efficiently, and will be focused on the interactive visual information exchange and user interactions. Among one of those technologies, the MPEG-4 codec can multiplex a set of independently-coded, arbitrarily-shaped video objects and transmit through either fixed or variable rate channels such as internet, wireless or satellite communications. Some quality control algorithms should support the encoding of visual objects to obtain and maintain best picture quality under the constraints of the quality requirements and channel environments. Especially, the MPEG-4 codec should be robust with respect to rapid changes in size and shape of the objects. The paper focuses on the design of the intelligent rate control algorithms via introducing quadratic neural networks and evaluating data-driven pattern analysis rather than rate-distortion mathematical models. According to data-driven pattern analysis, it is found that several new variables such as motion vectors are required to control near-optimally for transmitting best quality of moving pictures in real-time. We also found that the simplified mathematical rate distortion models, which are now widely used, could not support the control mechanism enough. Therefore, a quadratic neural-net using density estimation and randomizing pattern space, called density-based random-vector functional-link net is introduced to control the picture quality optimally. The proposed algorithm is tuned to obtain near-optimal picture quality of QCIF (176X144 pixels) format video streams for low bitrate transmission, storage/retrieval. Experimental work is presented based on the MPEG-4 video coder specification, apart from making intelligent rate control algorithm. The comparisons between the results of intelligent control and conventional rate control are presented.","PeriodicalId":194215,"journal":{"name":"Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127503862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Analysis and visualization of category membership distribution in multivariate data 多元数据中类别隶属度分布的分析与可视化

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 2000-10-01 DOI: 10.1109/IPMM.1999.791565

Y. Pao, B. Duan, Y.L. Zhao, S. LeClair

{"title":"Analysis and visualization of category membership distribution in multivariate data","authors":"Y. Pao, B. Duan, Y.L. Zhao, S. LeClair","doi":"10.1109/IPMM.1999.791565","DOIUrl":"https://doi.org/10.1109/IPMM.1999.791565","url":null,"abstract":"This paper reports on some advances in generic data processing procedures with focus on a specific materials discovery and design task. The task is to predict whether a new ternary materials system would be compound forming or not, with the prediction to be based on knowledge of many other known exemplars. The activities and results of three related efforts are described. In one effort, using a combination of clustering and mapping procedures, an accuracy of more than 99% was attained in predicting the category status of new ternary systems. A second effort addressed the question of how to identify redundant or superfluous features. A procedure for identifying the extent of functional dependency amongst features was developed. A third effort addressed the question of how to obtain reduced dimension representations of multivariate data, albeit at the cost of loss of some information. Visualizations of low-dimensional representations can be helpful in building up holistic views of data space, for use in exploration and discovery of new materials.","PeriodicalId":194215,"journal":{"name":"Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124492898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Intelligent materials processing by hyperspace data mining 基于超空间数据挖掘的智能材料处理

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 2000-10-01 DOI: 10.1109/IPMM.1999.791567

Nian-yi Chen, D.D. Zhu, Wenhua Wang

引用次数: 19

Methods to create membership functions in fuzzy-rules in knowledge-based systems 知识系统中模糊规则中隶属函数的生成方法

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.792473

C. Orłowski

引用次数: 0

Astronomical image processing - applications to ultra-faint imaging of small, moving, solar system bodies: comets and near-Earth-objects 天文图像处理-应用于小的，移动的，太阳系天体的超微弱成像:彗星和近地天体

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.792520

K. Meech

引用次数: 2

Progress in Japan's intelligent manufacturing systems research program 日本智能制造系统研究计划进展

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.792449

Y. Furukawa

引用次数: 0

Bio-compatible ceramics as mimetic material for bone tissue substitution 生物相容性陶瓷作为骨组织替代的模拟材料

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.792518

Z. Strnad, J. Šesták

{"title":"Bio-compatible ceramics as mimetic material for bone tissue substitution","authors":"Z. Strnad, J. Šesták","doi":"10.1109/IPMM.1999.792518","DOIUrl":"https://doi.org/10.1109/IPMM.1999.792518","url":null,"abstract":"Bone-like apatite formation on the surface of implant is of key importance during the physical and chemical processes leading to the formation of bonds between the implanted material and the newly formed bone tissue. The smartness of such a mimetic process is likely the action of silanole groups (Si-OH) which serve as the nucleation sites for the biocompatible interface formation capable to coexist between the original tissue and the implants which can be made from ceramics, glass-ceramics, composites as well as certain metals (titanium) respecting the condition of suitable surface reactivity. Lasak Co. Ltd. is the leading manufacturer of these materials in the Czech Republic and provides various kinds of bioactive implants, based on calcium phosphate ceramics, apatite wollastonite glass-ceramics and implants with hydroxyapatite surface coatings, permitting differentiated applications in clinical practice. The bioactive materials used as bone substitutes are all the subject of continuing research to attain biological, mechanical and chemical properties as similar as possible to those of the tissue to be replaced-mimetic materials. Clinical applications in orthopaedics, neurosurgery, maxillofacial surgery, auricular surgery, dental surgery and in other fields are demonstrated.","PeriodicalId":194215,"journal":{"name":"Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126062009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Acquisition of communication protocol for autonomous multi-AGVs driving 多agv自动驾驶通信协议的获取

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.791535

M. Watanabe, M. Furukawa, Y. Kakazu

引用次数: 1

A new process to produce advanced zirconia-based ceramic composites from low-value minerals 利用低价值矿物生产高级氧化锆基陶瓷复合材料的新工艺

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.791489

Santiago Veiga, M. Veiga, A. Chaklader, J. C. Bressiani

{"title":"A new process to produce advanced zirconia-based ceramic composites from low-value minerals","authors":"Santiago Veiga, M. Veiga, A. Chaklader, J. C. Bressiani","doi":"10.1109/IPMM.1999.791489","DOIUrl":"https://doi.org/10.1109/IPMM.1999.791489","url":null,"abstract":"A method to produce Al/sub 2/O/sub 3/-SiC-ZrO/sub 2/ powder composite by carbothermal reaction was investigated. Carbothermal reaction has been a creative technique to produce alumina-silicon carbide composite powder from inexpensive precursor materials such as kaolinite, kyanite, pyrophyllite, etc. The products obtained from carbothermal reactions have shown nanometric particle sizes, homogeneous mixture and most impurities were eliminated by volatilization. Zircon (ZrSiO/sub 4/), as an inexpensive source of zirconia, was mixed with kaolinite-carbon or kyanite-carbon to produce zirconia-based composites. Unfortunately zirconia cannot be obtained directly from carbothermal reaction of these minerals as the reaction to produce zirconium carbide is favored. Instead, this new process obtains Al/sub 2/O/sub 3/-SiC-ZrC composite powder at temperatures above 1500/spl deg/C at 1 atm. However, a subsequent controlled oxidation step can transform ZrC of this powder into a mixture of monoclinic and tetragonal ZrO/sub 2/. Thermodynamic data were generated to support test results. The Al/sub 2/O/sub 3/-SiC-ZrO/sub 2/ powder with 7.9% vol ZrO/sub 2/ and 23.4% vol SiC was sintered by hot pressing at 1800/spl deg/C resulting in pellets with 30% higher fracture toughness than the ones made of Al/sub 2/O/sub 3/-SiC composite. This encouraging result led to conclude that carbothermal reaction is a significant process to obtain ceramic composites by using different types of inexpensive minerals.","PeriodicalId":194215,"journal":{"name":"Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128109073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neural network method for inverse modeling of material deformation 材料变形反建模的神经网络方法

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI: 10.1109/IPMM.1999.791512

N. Ivezic, J. D. Allen, T. Zacharia

引用次数: 1