Sökning: "Inverse model"

Visar resultat 21 - 25 av 214 uppsatser innehållade orden Inverse model.

  1. 21. Numerical Modelling of Combined Forming and Punching of Sheet Metal for Heat Exchanger Applications

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Erik Stålbrand; [2023]
    Nyckelord :Solid Mechanics; Material Modelling; Damage Modelling; Sheet Metal Damage; Punching Simulation; Forming Simulation; Heat Exchanger; Technology and Engineering;

    Sammanfattning : In this work a strategy for numerical simulation of punching during concurrent pressing of stainless steel sheet metal has been investigated accounting for the stress triaxiality and Lode angle parameter. Modelling of the damage evolution of a sheet metal is a useful tool within the field of engineering and materials science, and can provide useful information regarding material capabilities in a design process. LÄS MER

  3. 22. Camera ISP optimization for computer vision tasks performed by deep neural networks

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Zhenghong Xiao; [2023]
    Nyckelord :Computer Vision; Image Signal Processing; DNN; Datorseende; bildsignalbehandling; DNN;

    Sammanfattning : This thesis aims to improve the performance of Deep Neural Networkss (DNNs) in Computer Vision tasks by optimizing the Image Signal Processor (ISP) parameters. The research investigates the use of simulated RAW images and the application of the DRL-ISP (Deep Reinforcement Learning for Image Signal Processor) method to enhance the accuracy and robustness of DNNs. LÄS MER

  4. 23. Improving sample-efficiency of model-free reinforcement learning algorithms on image inputs with representation learning

    Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :Marko Guberina; Betelhem Dejene Desta; [2022-10-14]
    Nyckelord :sample-efficient reinforcement learning; state representation learning; unsupervised learning; autoencoder;

    Sammanfattning : Reinforcement learning struggles to solve control tasks on directly on images. Performance on identical tasks with access to the underlying states is much better. LÄS MER

  5. 24. THE PROMISE OF CHANGE. Key Aspects of Democracy and Quality of Government Against Infant Mortality

    Master-uppsats, Göteborgs universitet/Statsvetenskapliga institutionen

    Författare :Joseph Siaw Akowuah; [2022-06-17]
    Nyckelord :Democracy; Quality of Government; Infant Mortality; Electoral Democracy; Liberal Components; Impartiality; Corruption and Bureaucratic Quality;

    Sammanfattning : This thesis investigates which aspects of democracy and quality of government (QoG) drive the inverse relationship democracy and the quality of government has with infant mortality. Though studies exist on democracy as well as QoG and infant mortality, the literature does not provide findings on the aspects of these broad concepts of democracy and QoG driving the democracy – QoG and infant mortality relationship. LÄS MER

  7. 25. Most efficient Inverse Kinematics algorithm for Quadruped models : Comparing FABRIK to CCD

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Matilda Richardsson; [2022]
    Nyckelord :Inverse Kinematics; FABRIK; CCD; Quadrupeds; Computer Graphics;

    Sammanfattning : This paper compares the two heuristic inverse kinematics methods: Forward And Backward Reaching Inverse Kinematics (FABRIK) and Cyclic Coordinate Descent (CCD) in the use cases concerning quadruped models. Unoptimised versions of the two algorithms were implemented into a game engine and evaluated on a quadruped model. LÄS MER