1,154,732 research outputs found

    Texture mapping in a distributed environment

    Get PDF
    This paper presents a tool for texture mapping in a distributed environment. A parallelization method based on the master-slave model is described. The purpose of this work is to lower the image generation time in the complex 3D scenes synthesis process. The experimental results concerning the speedup of texture mapping algorithm are also presented.

    Environment mapping

    Get PDF
    Tato bakalářská práce se zabývá různými možnostmi a metodami dostupnými pro zkoumání zejména podvodního prostředí. Po srovnání jednotlivých metod je práce zaměřena především na sonary a echoloty, od jejich historie, přes rozdělení dle typu / druhu vysílaného signálu, druhu paprsku a možnosti zobrazení výsledného obrazu, až po různé metody čtení obrazu a schopnosti jej správně analyzovat. V další části práce je pozornost věnována na uplatnění těchto technologií v různých detekčních systémech, z důvodu správného porozumění detekci, je popsán princip zpracování vstupního signálu a postupný převod až k výslednému obrazu vhodného k dalšímu zpracování. V závěru jsou popsány již používané rozlišovací metody a možnosti jejich dalšího využití.This bachelor thesis deals with various possibilities and methods that are available for studying especially of underwater environment. After comparing of the various methods, it is focused mainly on sonars and echolots from their history through their artition by type / kind of broadcast signal, kind of ray and possibilities of the resulting image display, to the different methods of reading of the image and the ability to analyze it properly. In the next part thesis, the attention is dedicated to the application of these technologies in different detection systems, due to the correct understanding of the detection, the principle of operation of the input signal and the gradual transfer to the resulting image suitable for further processing are described. In the conclusion, the already used distinguishing methods are described and also their potential future use.

    Design principles of hardware-based phong shading and bump-mapping

    Get PDF
    The VISA+ hardware architecture is the first of a new generation of graphics accelerators designed primarily to render bump-, texture-, environment- and environment-bump-mapped polygons. This paper presents examples of the main graphical capabilities and discusses methods and simplifications used to create high quality images. One of the key concepts in the VISA+ design, the use of reflectance cubes, is predestined for environment mapping. In combination with bump- and texture-mapping it shows the strength of our new architecture. Furthermore it justifies some of the decisions made during simulation and development of the complex VISA+ architecture

    Review of Australian land use mapping and land management practice

    Get PDF
    Land use information plays a vital role in effective management of natural resources in any country. The land use and land cover mapping is always a dynamic issue in every country because of the changing nature of the land use. Australia is experiencing similar traits. Knowledge of land use change patterns has important implications for sustainable development and sustainable environmental management. It helps in the management of water, soil, nutrients, plants and animals and provides relationship between land use dynamics and economics and social condition in urban and regional area. Although Australia has a long history of land use mapping and land management practice, no systematic study of the land use mapping status and land management practice can be confirmed. With the establishment of the Commonwealth Advisory Committee on the Environment in June 1972, later known as the Australian Advisory Committee on the Environment, the Australian government gave prime importance to land use and the environment. The committee recommended to the government that “Land use is fundamental to any consideration of the environment.” The committee also found an urgent need for an efficient, co-ordinated, and comprehensive system of national and state land use planning. Subsequently, many organizations and institutions like BRS, ACLUMP, CSIRO, QDERM, and DPI started on land cover/land use mapping from national to catchment level and many Land Care groups began working on land management the local level. This study reviews the status of the land use mapping and land management practices as implemented in Australi

    Mapping the Australian Regulatory Environment: Implications for Construction Firms

    Get PDF
    As regulators, governments are often criticised for over‐regulating industries. This research project seeks to examine the regulation affecting the construction industry in a federal system of government. It uses a case study of the Australian system of government to focus on the question of the implications of regulation in the construction industry. Having established the extent of the regulatory environment, the research project considers the costs associated with this environment. Consequently, ways in which the regulatory burden on industry can be reduced are evaluated. The Construction Industry Business Environment project is working with industry and government agencies to improve regulatory harmonisation in Australia, and thereby reduce the regulatory burden on industry. It is found that while taxation and compliance costs are not likely to be reduced in the short term, costs arising from having to adapt to variation between regulatory regimes in a federal system of government, seem the most promising way of reducing regulatory costs. Identifying and reducing adaptive costs across jurisdictional are argued to present a novel approach to regulatory reform

    Ontology mapping: the state of the art

    No full text
    Ontology mapping is seen as a solution provider in today's landscape of ontology research. As the number of ontologies that are made publicly available and accessible on the Web increases steadily, so does the need for applications to use them. A single ontology is no longer enough to support the tasks envisaged by a distributed environment like the Semantic Web. Multiple ontologies need to be accessed from several applications. Mapping could provide a common layer from which several ontologies could be accessed and hence could exchange information in semantically sound manners. Developing such mapping has beeb the focus of a variety of works originating from diverse communities over a number of years. In this article we comprehensively review and present these works. We also provide insights on the pragmatics of ontology mapping and elaborate on a theoretical approach for defining ontology mapping
    corecore