Essays about: "refinement"

Showing result 1 - 5 of 141 essays containing the word refinement.

  1. 1. Normalized Convolution Network and Dataset Generation for Refining Stereo Disparity Maps

    University essay from Linköpings universitet/Datorseende; Linköpings universitet/Datorseende

    Author : Daniel Cranston; Filip Skarfelt; [2019]
    Keywords : Disparity Map; Disparity Refinement; Dataset Generation; Neural Network; Normalized Convolution;

    Abstract : Finding disparity maps between stereo images is a well studied topic within computer vision. While both classical and machine learning approaches exist in the literature, they frequently struggle to correctly solve the disparity in regions with low texture, sharp edges or occlusions. READ MORE

  2. 2. Assessing the impact of floating-point precision in plasma simulations : A study of precision reduction and precisionrefinement in iPIC3D

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS); KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Svante Sörberg; Simon Tran Florén; [2019]
    Keywords : ;

    Abstract : This thesis explores how the precision of floating-point numbers affects the high-performance, implicit particle-in-cell plasma simulation software iPIC3D. We investigate whether a version of iPIC3D, modified to use floatingpoint numbers in lower precision than the current 64 bit double-precision, could yield accurate simulations in comparison with the current version. READ MORE

  3. 3. Forest Simulation with Industrial CFD Codes

    University essay from KTH/Strömningsfysik

    Author : Petter Cedell; [2019]
    Keywords : RANS; LES; WindSim; CFD; Forest Model; Turbulence; FVM;

    Abstract : Much of the planned installation of wind turbines in Sweden will be located in the northern region, characterized by a lower population density so that problems related to sound pollution and visual acceptance are of lower concern. This area is generally distinguished by complex topography and the presence of forest, that significantly affects the wind characteristics, complicating their modelling and simulation. READ MORE

  4. 4. Space Transportation and Exploitation Missions offered by the VEGA Transportation System that could reshape the European Space Industry

    University essay from KTH/Farkost och flyg

    Author : Adrian Buzdugan; [2019]
    Keywords : Index Terms—AVIO; VEGA; VTS; VSS; Requirements; Kit approach; Modularity; Mission; Services; Space; Europe.;

    Abstract : The aim of the thesis is to provide the mission requirements for the VEGA Transportation System(VTS), the equivalent of Phase 0 of a space project. The decrease in sizes and masses of the satellites opened the opportunity for the light capability VEGA launchers to contribute and reshape the European space value chain. READ MORE

  5. 5. Snow insulation effects across the Arctic : evaluating a revised snow module in LPJ-GUESS

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alexandra Pongrácz; [2019]
    Keywords : active layer depth; Arctic; LPJ-GUESS; snow; soil temperature; Earth and Environmental Sciences;

    Abstract : The effect of future changes in temperature and precipitation patterns on arctic ecosystem functioning is often assessed using state-of-the-art ecosystem models. Many models however lack detailed representation of wintertime processes, as pointed out by recent studies (Wang et al. 2016, Slater and Lawrence 2013). READ MORE