Sökning: "classification of surfaces"

Visar resultat 11 - 15 av 37 avhandlingar innehållade orden classification of surfaces.

1. 11. On Fundamental Elements of Visual Navigation Systems

   Författare :Abujawad Rafid Siddiqui; J. Rafid Siddiqui; Sweden Karlskrona Blekinge Tekniska Högskola Institutionen för kommunikationssystem; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robot navigation; localization; visual mapping; scene understanding; semantic mapping;

   Sammanfattning : Visual navigation is a ubiquitous yet complex task which is performed by many species for the purpose of survival. Although visual navigation is actively being studied within the robotics community, the determination of elemental constituents of a robust visual navigation system remains a challenge. LÄS MER

3. 12. Re-evaluation of methods to identify individuals with increased risk of caries

   Författare :Anna Senneby; Malmö högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; caries; risk assessment; diagnostic accuracy; methodology; acid tolerance; reliability; agreement;

   Sammanfattning : The overall aim of this thesis was to evaluate methods used to identify individuals with increased risk of coronal caries lesion development. The specific aims were to:•evaluate the accuracy of different methods used to identify individuals with increased risk of developing dental coronal caries lesions (study I)•design and pilot a novel classification system for the assessment of caries lesion progression in bitewing radiography and to report rater agreement of the system (study II)•assess intra-individual differences in biofilm acid-tolerance between different tooth surfaces and inter-individual variation as well as stability of acid tolerance over time (study III)•assess diagnostic accuracy of two established methods and a candidate method to identify adolescents with increased risk of dental coronal caries lesion development (study IV). LÄS MER

4. 13. Characterization of thin multi-layered materials using ultrasound

   Författare :Fredrik Hägglund; Peter Hauptmann; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

   Sammanfattning : This thesis contributes to the field of ultrasonic modeling and measurement technologies. The objective is to address the advancement of methods for ultrasonic characterization of thin multi-layered materials. LÄS MER

5. 14. CFD simulation of indoor climate in low energy buildings

   Författare :Daniel Risberg; Thomas Olofsson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Engineering; Energiteknik;

   Sammanfattning : In this thesis computational fluid dynamics (CFD) was used for simulation of the indoor climate of low-energy buildings in cold climate. The heat consumption in newly built houses was reduced drastically. LÄS MER

7. 15. Earth Observation based Monitoring of Urbanizationand Environmental Impact in Kigali, Rwanda

   Författare :Theodomir Mugiraneza; Yifang Ban; Jan Haas; Emmanuel Twarabamenye; Constantinos Cartalis; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth observation; Landsat; Sentinel-2; WorldView-2; Urbanization; Land cover classification; Support vector machines; Random forest; U-Net; LandTrendr; Landscape metrics; Ecosystem services; Environmental impact analysis; Kigali; Rwanda; Jordobservation; Landsat; Sentinel-2 MSI; WorldView-2; Urbanisering; Klassificering av marktäcke; Stödvektormaskiner; Slumpmässig skog; U-Net; LandTrendr; Landskapsmetriker; Ekosystemtjänster; Miljökon- sekvensanalys; Kigali; Rwanda.; Geoinformatics; Geoinformatik;

   Sammanfattning : Urbanization is one of the great challenges in the 21st century. Despite being an engine for the global economy, urban areas consume 78% of World's energy and emit more than 60% of greenhouse gas emission. Sub-SaharanAfrican cities, e.g. LÄS MER