Search results for "VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420"
showing 10 items of 286 documents
Wavelet-based video compression: A glimpse of the future?
2004
Masteroppgave i informasjons- og kommunikasjonsteknologi 2004 - Høgskolen i Agder, Grimstad Even though wavelet-based video compression has been an area of research for more than a decade, motion estimation and compensation has been considered complex and inefficient until recently. We have carried out a thorough investigation of existing research work in this field, and found that fundamental problem with wavelet-based temporal removal while obtaining highly scalability (the wavelet-properties of multiresolution structure in combination with embedded coding), has been solved by performing motion compensated temporal filtering within the wavelet domain of a overcomplete three-dimensional li…
Analysis of binarization techniques and Tsetlin machine architectures targeting image classification
2020
Master's thesis in Information- and communication technology (IKT590) The Tsetlin Machine is a constantly evolving and developing machine learning technique with ever-increasing success. However, for every success, the Tsetlin Machine achieves, a new set of challenges are put ahead. To sufficiently bring the Tsetlin Machine to a broadly used standard, these challenges must be completed. This thesis focuses on the challenge of doing color image classification and will provide an introductory description of how this is possible through the usage of an older technique, namely binarization. A comparison with the various Tsetlin Machine adaptations made public in recent times is also present aft…
An improved image processing chain for mobile terminals
2002
Masteroppgave i informasjons- og kommunikasjonsteknologi 2002 - Høgskolen i Agder, Grimstad Based on the proposal in the report by Tryggve Mikkelsen [Mikkelsen, 2001] this thesis investigates and discusses the implementation of a simplified image processing chain for modern mobile terminals. Previous work on image processing in this field of application has shown that the demosaicing operation, color space conversion and downsampling are resource demanding pre-processing operations. The simplification potential of the signal chain lies within the pictured scenario of using Bayer RGB from the image sensor directly as input to the compression scheme. By omitting these pre-processing operation…
Research on the impact of using interactive game based learning to teach mathematics
2005
Masteroppgave i informasjons- og kommunikasjonsteknologi 2005 - Høgskolen i Agder, Grimstad The number of students who study scientific subjects has continued to drop over a long period of time. Compared to 2004, there is a 12% decrease in High School students who study mathematics and a 5% decrease in applicants for technology studies at College and University level in 2005 [1]. These numbers concern employees of the technology sector as they have predicted a large need for mathematicians in the future [19]. The educational system is under constant change to take advantage of new educational methods that modern technology allows for. The Heriot Watt University in Scotland showed that the i…
Interconnected learning automata playing Iterated Prisoner's Dilemma
2004
Masteroppgave i informasjons- og kommunikasjonsteknologi 2004 - Høgskolen i Agder, Grimstad There exist several examples of situations where interaction between entities is essential in order to reach a common goal, for instance negotiations. Problems arise when the parties of a case are in disagreement with each other and they all want the best for themselves. Our thesis focuses around one such case. Analyzing the results of its own actions, an entity can learn what kind of adversaries it faces. For instance they may be cooperative, hostile, ignorant or irrational. The situation becomes even more complex when the opposing parties change its behaviour while trying to reach a goal. In this c…
Data management and concurrency control in broadcast based asymmetric environments
2006
Masteroppgave i informasjons- og kommunikasjonsteknologi 2006 - Høgskolen i Agder, Grimstad Tens of millions of users have personal handheld devices with several network interfaces built-in, and the number of users and of network interfaces included are only increasing. This growth suggests a need for new methods to disseminate data to multiple clients, and cyclic broadcast is one approach. We do a survey on the various data management protocols that describe how to broadcast the data, and the concurrency control protocols that make sure all access to the database is consistent. The various data management and concurrency control techniques deals with the restrictions in asymmetric broadcas…
Analysis of audio coding algorithms for networked embedded systems
2004
Masteroppgave i informasjons- og kommunikasjonsteknologi 2004 - Høgskolen i Agder, Grimstad Today there are many different audio coding algorithms, some of them standardized by the ITU, like G.711, G.726 and G.728, and several other codecs by other organizations like Fraunhofer (mp3) and Microsoft (WMA). All these algorithms differ in several important features, like speech quality, bit or compression rate, robustness, delay, sampling frequency, complexity and range of use. The past decade we have witnessed a great progress towards application of low-rate speech/music coders as well as computer related voice/music applications. Central to this progress has been the development of speech cod…
Ontological Modelling of FEST with support for DDI Reasoning
2017
Master's thesis Information- and communication technology IKT590 - University of Agder 2017 FEST is a Norwegian database and information service aimed towards providing all the required pharmaceutical data to different stakeholders such as hospitals, pharmaceutical companies, and practitioners. FEST being a complete pharmaceutical database, ensures every information related to drugs such as dosage, form of drug, interactions, and brand. FEST database is represented as an XML and schema files. In this master thesis, we propose an open and linked data representation approach of FEST database by modelling it as an Ontology. We propose the integration of FEST ontology with other systems and ont…
Effektiv integrasjon av Java servlets i Apache web-tjener
2000
Masteroppgave i informasjons- og kommunikasjonsteknologi 2000 - Høgskolen i Agder, Grimstad I hovedoppgaven "Effektiv integrasjon av Java servlets i Apache web-tjener" belyses design og implementasjon av serverapplikasjoner som er skrevet i språk som C men hvor funksjonalitet kan utvides med dynamisk pluggbare komponenter skrevet i Java. Oppgaven fokuserer spesielt på fordeler og ulemper ved en arkitektur hvor Java virtuell maskin (og java komponentene) kjører innenfor samme prosess som tjeneren, i forhold til en annen arkitektur hvor tjeneren og JVM kjører i separate prosesser og kommuniserer ved hjelp av operativsystemets IPC mekanismer (TCP sockets). I oppgaven er det gitt eksempler på d…
Security in the Wireless Application Protocol : post-graduate thesis in information and communication technology
2000
Masteroppgave i informasjons- og kommunikasjonsteknologi 2000 - Høgskolen i Agder, Grimstad The necessity of being online wherever you are and at any time, have brought foreword the WAP technology. Solution based on banking, industry, and sale among others, is services and application that are on the market to day. Like in all new technologies the security issues in WAP is of great interest. The interest lies on both possible intruders and company that want to make a profit out of it by offering services. This assignment enlightens possible security problems in the WAP architecture, both in the security layer Wireless Transport Layer of Security (WTLS) and the WAP infrastructure. The report…