Interaktive Computergrafik

VL Interaktive Computergrafik

VL Interaktive Computergrafik


Kartei Details

Karten 194
Sprache Deutsch
Kategorie Informatik
Stufe Universität
Erstellt / Aktualisiert 24.04.2021 / 21.07.2021
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Are the following fields subject to computer graphics or computer vision?

A: stitching videos to a panorama

B: generation of videos or images from input data

C: alteration of videos like saturation correction

D: computer games

E: Animation

F: idetification of lines and structures from building photos

G: creation of a 3D model from an MRI or video

H: location and idetifying objects like animals, partos of humans, cars in images or videos

Computer vision: A,F,G,H

Computer graphics: B,C,D,E

Which of the following is not a human sense?

What ist computer graphics?

The science of the digital ACTION_1ACTION_2, and ACTION_3 of visual content.

ACTION_1 is… definition/creation/study

ACTION_2 is …processing/progressing/procrastenating

ACTION_3 is… syntactics/synabtic/synthesis

creation, processing, synthesis

Which information is relevant to display images with computer graphics?

  • object’s perceived color
  • light-material-interaction model
  • object’s roughness
  • object’s shininess
  • object’s surface geometry

How is the contact-free measurement and analysis method named, that determines object shape and orientation from image data?

What difficulties arise during image synthesis, when the only representation of an object is its surface geometry?

What is the spectrum range of human visible light?

What is photopic vision?

Assign the colors to the wavelengths

yellow, red, blue, violet, orange, green

550nm, 700nm, 450nm, 540nm, 290nm, 380nm,  600nm, 510nm, 780nm

violet 380nm, blue 450nm, green 510nm, yellow 550nm, orange 600nm, red 700nm

 

The colors we see are determined by the light’s ...... , while the brightness depends on the light’s ....

 

The cones in our eyes are important  to...., while we need the rods to....

 

...wavelength....

...amplitude.

 

...perceive colors....

...see in low light conditions.

Which types of cells are most probably malfunctioning if one has Red-Green Blindness?

In which order is light passing through the layers of the retina when entering the eye?

What are correct design guidelines derived from knowledge of visual perception?

What are correct properties of human vision?

Lösung siehe Quizzes

What does the Tristimulus Theory postulate?

What are color models like RGB or CMYK good for?

What does the perimeter of the CIE 1931 color space represents?

What information is missing from a CIE diagram for human eye perception?

When was the CIE Color System developed?

How large is the area of foveal sight?

What does CIE abbreviate?

Match the light sources’ wavelengths to the color as used in the CIE experiment.

red, green, blue

690 nm,  700nm, 435 nm, 546 nm, 560 nm, 436 nm

Red: 700nm

Green: 546 nm

Blue: 436 nm

How did the experiment leading to the CIE color system produce negative red values?

Which statements of the CIE XYZ representation are correct?

The white point in the CIE chromaticity diagram …

The purple line …

Use the formulas from the slides before to calculate the vector values. Only one answer is correct for each color space. Values are normalized to [0,1].

Assign the different representation of pure orange to the given color spaces!

RGB (1 0,5 0)

CMY (0 0,5 1)

CMYK (0 0,5 1 0)

HSV (0,08 1 1)

YUV (0,59 0,16 0,79)

What does RGB stand for?

What color mixing model is employed by the RGB model?

What is the resulting color of adding red and blue light?

Which devices use the RGB color model?

Why are the color values in the range of [0; 1]?

How does the color model described by the RGB model look?

What color is described by RGB (1, 1, 1)?

A painter paints an image with acrylic paints. What color mixing model do the colors adhere to?

CMY color model: how does the final color change if you increase the intensity of one color-component?

Which devices use the CMY color model?

Two devices interpret the same color definition following the same color model. Can we expect the final colors to be equal?

How does the CMY color model relate to the RGB color model?