08. Quiz: Pipeline Steps

Computer Vision Pipeline

A standard computer vision pipeline uses the following steps to extract information from any set of images; eventually going from perception to action.

QUIZ QUESTION::

These examples are for a facial expression recognition application. This is a computer vision application that can recognize a face and what kind of emotion it is displaying based on features, such as eyebrow angle and mouth curvature. Match the pipeline step to the correct example.

ANSWER CHOICES:

Transforming an image from color to grayscale

Given a face, determining the curvature of the mouth

Identifying a face in an image

Extracting image data from a video stream

Predicting that a face is expressing anger

Example	Pipeline step
Pre-processing
Prediction/Recognition
Feature extraction
Input data
Selecting areas of interest

SOLUTION:

Example	Pipeline step
Pre-processing	Transforming an image from color to grayscale
Prediction/Recognition	Predicting that a face is expressing anger
Feature extraction	Given a face, determining the curvature of the mouth
Input data	Extracting image data from a video stream
Selecting areas of interest	Identifying a face in an image