Sökning: "Optical model"

Visar resultat 16 - 20 av 245 uppsatser innehållade orden Optical model.

1. 16. The development of a Hardware-in-the-Loop test setup for event-based vision near-space space objects.

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Rik van den Boogaard; [2023]
   Nyckelord :Camera optics; Event-based camera; HASTE; Hardware-in-the-Loop testbench; Harris corners; KLT; Asteroid; Frame-based camera; Near-space objects; Planetary exploration; Space-simulated conditions;

   Sammanfattning : The purpose of this thesis work was to develop a Hardware-in-the-Loop imaging setup that enables experimenting with an event-based and frame-based camera under simulated space conditions. The generated data sets were used to compare visual navigation algorithms in terms of an event-based and frame-based feature detection and tracking algorithm. LÄS MER

3. 17. Numerical simulations of ultrafast dynamics in plasmonic nanostructures

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

   Författare :Nils Henriksson; [2023]
   Nyckelord :Ultrafast nanophotonics; Three temperature model; Numerical simulations;

   Sammanfattning : Plasmonic effects in nanosized particles enhance the interaction between light and matter due to the localized surface plasmon resonance, with potential applications such as all-optical transistors and optical computers. Commonly, the dynamics of nanoparticles’ optical properties are assessed via pump-probe spectroscopy, where a plasmonic structure is exited by an initial laser, the pump. LÄS MER

4. 18. A Comparison Between KeyFrame Extraction Methods for Clothing Recognition

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Datalogi

   Författare :Gabriel Lindgren; [2023]
   Nyckelord :key frame extraction; video analyzis; yolo; yolov7; optical flow; nyckelbildutvinning; videoanalys; yolo; yolov7; optiskt flöde;

   Sammanfattning : With an ever so high video consumption, applications and services need to use smart approaches to make the experience better for their users. By using key frames from a video, useful information can be retrieved regarding the entire video, and used for better explaining the content. LÄS MER

5. 19. Classification of invoices using a 2D NLP approach : A comparison between methods for invoice information extraction for the purpose of classification

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

   Författare :Linnéa Fredriksson; [2023]
   Nyckelord :Key-field extraction; Invoices; 2D NLP; Document Intelligence; Visually Rich Documents; LayoutLMv3; Nyckelfältsextraktion; Fakturor; 2-dimensionell naturligtspråkbehandling; LayoutLMv3;

   Sammanfattning : Many companies are handling a large number of invoices every year. To manually categorize them takes a lot of time and resources. For a model to automatically categorize invoices, the documents need to be properly read and processed by the model. LÄS MER

7. 20. Time-dependent light-matter coupling and quantum dynamics

   Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Författare :Daniel Elgbro; [2023]
   Nyckelord :light-matter interaction; Rabi oscillations; quantum dynamics; optical cavity; qubit; coupled qubit; coupling strength; time-dependent coupling; dynamical qubits; entanglement; concurrence; qubit state manipulation; Jaynes-Cummings; Tavis-Cummings; Physics and Astronomy;

   Sammanfattning : In this thesis, two quantum dynamical system’s of one and two qubits coupled to a field mode confined in an optical cavity have been studied. Within the Jaynes- and Tavis- Cummings model, the dynamics of the corresponding light-matter interaction was defined in terms of the system’s coupling constants. LÄS MER