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Computer Vision - Quiz 1

Total questions: 15

Worksheet time: 3mins

Name
Class
Date
1.

What is the smallest unit of an image?

a)

1 sq. mm

b)

DPI

c)

Pixel

d)

Point

2.

Which of the following combination of colors can be used to represent almost any color in electronic systems?

a)

Yellow-Red-Green

b)

Blue-White-Green

c)

Red-Yellow-White

d)

Green-Red-Blue

3.

A translation is applied to an object by

a)

Enlarging the object

b)

Shrinking the object

c)

Repositioning it along with straight line path

d)

Repositioning it along with circular path

4.

The two-dimensional translation equation in the matrix form is

a)

P’=P+T

b)

P’=P-T

c)

P’=P*T

d)

P’=p

5.

The axis that is perpendicular to the xy plane and passes through the pivot point is known as

a)

Translation

b)

Rotation

c)

Scaling

d)

Shearing

6.

In controllable interaction user can change the attributes of the ____________.

a)

Images

b)

Widgets

c)

Videos

d)

Audios

7.

If the direction of the projection is normal then it is called as __________

a)

Perspective Projection

b)

Orthographic parallel projection

c)

Oblique parallel projection

d)

Ortho-Oblique Projection

8.

A _______ can be recorded using a normal light source

a)

Holograph

b)

Sonograph

c)

Holography

d)

Photograph

9.

The translation distances (dx, dy) is called as

a)

Augmented vector

b)

Shift vector

c)

Shear vector

d)

Scaling vector

10.

In 2D-translation, a point (x, y) can move to the new position (x’, y’) by using which of the following equation

a)

x’=x+dx and y’=y+dx

b)

x’=x+dx and y’=y+dy

c)

X’=x+dy and Y’=y+dx

d)

X’=x-dx and y’=y-dy

11.

To generate a rotation, we must specify

a)

Distances dx and dy

b)

Rotation angle ϴ

c)

Rotation distance

d)

Plane of the object

12.

Which transformation distorts the shape of an object such that the transformed shape appears as if the object were composed of internal layers that had been caused to slide over each other?

a)

Rotation

b)

Scaling up

c)

Scaling down

d)

Shearing

13.

Which of the following is defined as the process of elimination of parts of a scene outside a window or a viewport?

a)

clipping

b)

cutting

c)

plucking

d)

editing

14.

Which of the following operations can be used to zoom in or out around any axis on a three-dimensional object from its original position?

a)

Rotation

b)

Shearing

c)

Scaling

d)

Translation

15.

If the scaling factors values sx and sy < 1 then

a)

It reduces the size of the object

b)

It increases the size of the object

c)

It stunts the shape of the object

d)

It produces mirror image of the object