DPaC/UniBas/2020 at University Of Basel | Flashcards & Summaries

Select your language

Suggested languages for you:
Log In Start studying!

Lernmaterialien für DPaC/UniBas/2020 an der University of Basel

Greife auf kostenlose Karteikarten, Zusammenfassungen, Übungsaufgaben und Altklausuren für deinen DPaC/UniBas/2020 Kurs an der University of Basel zu.

TESTE DEIN WISSEN

Colour models (5)

Lösung anzeigen
TESTE DEIN WISSEN
  • RBG
    • digital cameras
  • HSV
    • artists
  • HIS
    • similar to HSV
  • YCbCR
    • digital video (JPEG, MPEG)
  • CMY, YMYK
    • printers
Lösung ausblenden
TESTE DEIN WISSEN

Why do we need control?

Lösung anzeigen
TESTE DEIN WISSEN

Compensate for inaccuracy due to

  • Modelling our system
  • Disturbances from the outside that we don't know in beforehand
Lösung ausblenden
TESTE DEIN WISSEN

Computer Graphics

Lösung anzeigen
TESTE DEIN WISSEN

Image synthesis

Abstract description --> Image

Example: textfile to image (architecture)

Lösung ausblenden
TESTE DEIN WISSEN

Absorption

Lösung anzeigen
TESTE DEIN WISSEN

Process by which the energy of a photon is taken up by another entity (atom)

  • photon is destroyed
  • absorbed energy ma be re-emitted/converted into heat energy
  • amount of absorption varies with the wavelength of the light (leading to colour in pigments


Example: Wall, absorbing surface have properties that depend on the wavelength of the light

Lösung ausblenden
TESTE DEIN WISSEN

Simple image model

Lösung anzeigen
TESTE DEIN WISSEN
  • Image as 2D light function f(x,y)
  • the values of coordinates (x,y) have the intensity of the image at that point
Lösung ausblenden
TESTE DEIN WISSEN

FT of the Neighbourhood function

Lösung anzeigen
TESTE DEIN WISSEN

FT over the Tessellation is a 3D Sinc function

  • has negative values
  • has infinite support
  • p(x,y) is real and F(u,v) is too
    • neighbourhood filter will not change the phase, but their amplitude
  • P(u,v) becomes negative for some u,v some frequencies undergo a complete phase reversal 
    • shift over pi
Lösung ausblenden
TESTE DEIN WISSEN

Discrete time sinusoidal signals;

Lösung anzeigen
TESTE DEIN WISSEN

Digital signal

Lösung ausblenden
TESTE DEIN WISSEN

What are the parameters that human eyes can perceive?

Lösung anzeigen
TESTE DEIN WISSEN

1) Wavelength as colours

2) Direction as viewpoints

3) Amplitude as brightness 

Lösung ausblenden
TESTE DEIN WISSEN

3 Levels of Optics

Lösung anzeigen
TESTE DEIN WISSEN
  1. Geometrical optics
    1. light is represented as a wave, if it hits a body, it changes its direction
    2. can be calculated with Snell's law
  2. Physical Optics
    1. Light as a wave which interacts with a body
    2. If the light hits a filter, only parts of the light goes through
  3. Quantum-mechanical Optics
    1. required to explain aspects like emission, absorption, ect.
Lösung ausblenden
TESTE DEIN WISSEN

4 Basic types of interaction

Lösung anzeigen
TESTE DEIN WISSEN

Absorption

Scattering

Refraction

Reflection

Lösung ausblenden
TESTE DEIN WISSEN

Trivia:

Lights from the sun is scattered. We use polarized sunglasses to prevent glare, which blocks;

Lösung anzeigen
TESTE DEIN WISSEN

Horizontal light waves

Lösung ausblenden
TESTE DEIN WISSEN

Types of systems

Lösung anzeigen
TESTE DEIN WISSEN
  • Open loop
    • 1 input, 1 output
    • no control
  • Closed loop
    • 1 input, 1 output
    • model inside the system that gives some sort of control
Lösung ausblenden
  • 48608 Karteikarten
  • 997 Studierende
  • 37 Lernmaterialien

Beispielhafte Karteikarten für deinen DPaC/UniBas/2020 Kurs an der University of Basel - von Kommilitonen auf StudySmarter erstellt!

Q:

Colour models (5)

A:
  • RBG
    • digital cameras
  • HSV
    • artists
  • HIS
    • similar to HSV
  • YCbCR
    • digital video (JPEG, MPEG)
  • CMY, YMYK
    • printers
Q:

Why do we need control?

A:

Compensate for inaccuracy due to

  • Modelling our system
  • Disturbances from the outside that we don't know in beforehand
Q:

Computer Graphics

A:

Image synthesis

Abstract description --> Image

Example: textfile to image (architecture)

Q:

Absorption

A:

Process by which the energy of a photon is taken up by another entity (atom)

  • photon is destroyed
  • absorbed energy ma be re-emitted/converted into heat energy
  • amount of absorption varies with the wavelength of the light (leading to colour in pigments


Example: Wall, absorbing surface have properties that depend on the wavelength of the light

Q:

Simple image model

A:
  • Image as 2D light function f(x,y)
  • the values of coordinates (x,y) have the intensity of the image at that point
Mehr Karteikarten anzeigen
Q:

FT of the Neighbourhood function

A:

FT over the Tessellation is a 3D Sinc function

  • has negative values
  • has infinite support
  • p(x,y) is real and F(u,v) is too
    • neighbourhood filter will not change the phase, but their amplitude
  • P(u,v) becomes negative for some u,v some frequencies undergo a complete phase reversal 
    • shift over pi
Q:

Discrete time sinusoidal signals;

A:

Digital signal

Q:

What are the parameters that human eyes can perceive?

A:

1) Wavelength as colours

2) Direction as viewpoints

3) Amplitude as brightness 

Q:

3 Levels of Optics

A:
  1. Geometrical optics
    1. light is represented as a wave, if it hits a body, it changes its direction
    2. can be calculated with Snell's law
  2. Physical Optics
    1. Light as a wave which interacts with a body
    2. If the light hits a filter, only parts of the light goes through
  3. Quantum-mechanical Optics
    1. required to explain aspects like emission, absorption, ect.
Q:

4 Basic types of interaction

A:

Absorption

Scattering

Refraction

Reflection

Q:

Trivia:

Lights from the sun is scattered. We use polarized sunglasses to prevent glare, which blocks;

A:

Horizontal light waves

Q:

Types of systems

A:
  • Open loop
    • 1 input, 1 output
    • no control
  • Closed loop
    • 1 input, 1 output
    • model inside the system that gives some sort of control
DPaC/UniBas/2020

Erstelle und finde Lernmaterialien auf StudySmarter.

Greife kostenlos auf tausende geteilte Karteikarten, Zusammenfassungen, Altklausuren und mehr zu.

Jetzt loslegen

Das sind die beliebtesten StudySmarter Kurse für deinen Studiengang DPaC/UniBas/2020 an der University of Basel

Für deinen Studiengang DPaC/UniBas/2020 an der University of Basel gibt es bereits viele Kurse, die von deinen Kommilitonen auf StudySmarter erstellt wurden. Karteikarten, Zusammenfassungen, Altklausuren, Übungsaufgaben und mehr warten auf dich!

Das sind die beliebtesten DPaC/UniBas/2020 Kurse im gesamten StudySmarter Universum

USTR_WS_2020

Fachhochschulstudiengänge Krems IMC

Zum Kurs
SS 2020

FernUniversität in Hagen

Zum Kurs
2020

Tierärztliche Hochschule Hannover

Zum Kurs

Die all-in-one Lernapp für Studierende

Greife auf Millionen geteilter Lernmaterialien der StudySmarter Community zu
Kostenlos anmelden DPaC/UniBas/2020
Erstelle Karteikarten und Zusammenfassungen mit den StudySmarter Tools
Kostenlos loslegen DPaC/UniBas/2020