Motion Analysis Worksheet

What is 3D motion?

• Motion in a straight line

• Motion in x-direction only

• Motion along x, y, and z axes

• Circular motion only

In computer vision, motion is defined as:

• Color variation

• Change in pixel intensity

• Change in position over time

• Edge detection

Motion in video is detected by analyzing:

• Single image

• Consecutive frames

• Histogram

• Frequency domain

Which is an application of motion analysis?

• Image compression

• Autonomous driving

• Printing

• File storage

When only the object moves and the camera is fixed, it is called:

• Camera motion

• Object motion

• Combined motion

• Static motion

When the camera moves and the scene is static, it is called:

• Object motion

• Combined motion

• Camera motion

In real-world scenarios, motion is usually:

• Only object motion

• Only camera motion

• Combined motion

• No motion

Frame differencing is used to:

• Detect edges

• Compare pixel values between frames

• Blur images

• Enhance contrast

A limitation of frame differencing is:

• It is too slow

• It is sensitive to noise

• It needs multiple cameras

• It cannot detect motion

Optical flow represents:

• Color variation

• Motion of pixels between frames

• Shape of objects

• Texture of image