Sökning: "potholes"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet potholes.

  1. 1. Automation of forest road inventory using computer vision and machine learning

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Jacques de Flon; [2023]
    Nyckelord :Computer vision; Machine Learning; Image recognition; forestry; road inventory; pothole; gravel road;

    Sammanfattning : There are around 300, 000 kilometer of gravel roads throughout the Swedish countryside, used every day by common people and companies. These roads face constant wear due to harsh weather as well as from heavy traffic, and thus, regular maintenance is required to keep up the road standard. LÄS MER

  3. 2. Optimization and Bayesian Modeling of Road Distance for Inventory of Potholes in Gävle Municipality

    Kandidat-uppsats, Stockholms universitet/Statistiska institutionen

    Författare :Timothy Rafael Lindblom; Oskar Tollin; [2022]
    Nyckelord :Traveling salesman problem; Bayesian inference; Simulated annealing; Nearest neighbour algorithm; Markov Chain Monte Carlo; MCMC; Potholes; Haversine formula; Metropolis-Hastings; Posterior predictive distribution; Handelsresande problemet; bayesiansk inferens; simulerad anlöpning; nearest neighbour algorithm; Markov Chain Monte Carlo; MCMC; potthål; storcirkelavstånd; Metropolis-Hastings; posterior predictive distribution;

    Sammanfattning : Time management and distance evaluation have long been a difficult task for workers and companies. This thesis studies 6712 pothole coordinates in Gävle municipality, and evaluates the minimal total road distance needed to visit each pothole once, and return to an initial pothole. LÄS MER

  4. 3. Off-road Driving with Deteriorated Road Conditions for Autonomous Driving Systems

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Eric Ekström; [2022]
    Nyckelord :autonomous driving systems; computer graphics; synthetic training data; driving;

    Sammanfattning : Recent studies on robustness of machine learning systems shows that today’s autonomous vehicles struggle with very basic visual disturbances such as rain or snow. There is also a lack of training data that includes off road scenes or scenes with different forms of deformation to the road surface. LÄS MER

  5. 4. Arkeologi och folktro : En undersökning av skålgroparnas användning genom tiden

    Kandidat-uppsats, Uppsala universitet/Institutionen för arkeologi och antik historia

    Författare :Tobias Andreasson; [2022]
    Nyckelord :Folklore; cup marks; elf mills; Dalarna; Ethnology and Archaeology; Folktro; Skålgropar; Älvkvarnar; Dalarna; Etnologi och Arkeologi;

    Sammanfattning : Cup marks are often described in historical records as belonging to the fairies of Swedish folklore, hence going under the name “fairy mills” or “elf mills” (in Swedish älvkvarn). The name derives from the belief that the fairies used the cups as their mills for grinding seed. LÄS MER

  7. 5. FPGA Implementation of Feature Matching in ORB-SLAM2

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Hannah Lindström; [2022]
    Nyckelord :Autonomous navigation; SLAM; Feature matching; FPGA; ORB; Heterogeneous binary tree; Technology and Engineering;

    Sammanfattning : Simultaneous Localization And Mapping (SLAM) is an important component in solving the problem of autonomous navigation — allowing machines such as selfdriving cars and mobile robots to find their way in the world without human instruction. Though there is a steadily growing body of literature in the field of SLAM, far fewer works currently address using hardware acceleration to speed up this computationally heavy task. LÄS MER