Essays about: "spatio-temporal interpolation"

Found 5 essays containing the words spatio-temporal interpolation.

  1. 1. Deep learning for temporal super-resolution of 4D Flow MRI

    University essay from KTH/Matematik (Avd.)

    Author : Pia Callmer; [2023]
    Keywords : Temporal super-resolution; 4D Flow MRI; CNN; Artificial Intelligence; MRI; 4D flow; Temporal superupplösning; 4D flöde MRI; CNN; artificiell intelligens; MRI; 4D-flöde;

    Abstract : The accurate assessment of hemodynamics and its parameters play an important role when diagnosing cardiovascular diseases. In this context, 4D Flow Magnetic Resonance Imaging (4D Flow MRI) is a non-invasive measurement technique that facilitates hemodynamic parameter assessment as well as quantitative and qualitative analysis of three-directional flow over time. READ MORE

  3. 2. Assessing annual forest phenology: a comparison of Unmanned Aerial Vehicle (UAV) and phenocamera datasets

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Shangharsha Thapa; [2020]
    Keywords : Geography; Ecosystem Analysis; Near-surface Remote Sensing; UAV; Phenocamera; Forest Phenology; Phenophase; Seasonality; NDVI; GCC; Geomatics; Earth and Environmental Sciences;

    Abstract : Near-surface remote sensing platforms such as Unmanned Aerial Vehicles (UAVs) and phenocameras appear to be potential platforms for keeping track of seasonal dynamics at a local scale. This research focusses on extracting time series of different vegetation indices (VIs) from both platforms, computing seasonality events from them and comparing the results against spectral sensor data. READ MORE

  4. 3. Evaluating spatial mapping using interpolation techniques

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Allan Gholmi; [2017]
    Keywords : ;

    Abstract : In this thesis, the inverse distance weighting, different kriging methods, ordinary least squares and two variants of the geographically weighted regression was used to evaluate the spatial mapping abilities on an observed dataset and a simulated dataset. The two datasets contain the same bioclimatic variable, near-surface air temperature, uniformly distributed over the whole world. READ MORE

  5. 4. Feasibility of a low-cost weather sensor network for agricultural purposes : a preliminary assessment

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Kees Van Duijvendijk; [2015]
    Keywords : coffee; microclimates; Costa Rica; Physical Geography and Ecosystem analysis; spatio-temporal interpolation; GIS; micro-sensors; Earth and Environmental Sciences;

    Abstract : This study has focused on challenges encountered when setting up a weather-network for agricultural purposes (e.g. linking temperature to the suitability of crops and pest incidence) with only low-cost sensors and materials. READ MORE

  6. 5. Human Action Recognition Based on Linear and Non-linear Dimensionality Reduction using PCA and ISOMAP

    University essay from KTH/Reglerteknik

    Author : Isabel Serrano Vicente; [2006]
    Keywords : ;

    Abstract : Understanding and interpreting dynamic human actions is an important area of research in the field of computer vision and robotics. In robotics, it is closely related to task programming. Traditionally, robot task programming has required an experienced programmer and tedious work. READ MORE