Perception chapter 3 (book info)

What is the inverse projection problem?

Answer explanation

The process where we try to determine what object produced an image on our retina. It is done by extending the picture on the retina to determine what object produced it. There are many objects that might be responsible for an image hence it is ambiguous especially for machines.

What is the following describing?

It extends the rays out from the image and looks for the object responsible for the image on the retina

• Transitional probability

• Statistical learning

• View point invariance

• Speech segmentation

• Inverse projection problem

What is the following describing?

ability to recognize an object even when it is seen from a different point of view.

• Transitional probability

• Statistical learning

• View point invariance

• Speech segmentation

• Inverse projection problem

Why do machines/robots have difficulty with perception?

Answer explanation

1. 1. Inverse projection problem, there are many objects that might be able to produce the ambiguous 2d image on the retina

2. 2. Machines do not have a store house of information that human accumulate through life, and theirs most be coded

3. 3. Small use of context that humans are able to do based on the environment and prior knowledge

4. 4. view point invariance, where there is difficulty recognizing objects from different angles without mathematical point recognition

5. 5. Scene complexity

What is the definition of view point invariance?

Answer explanation

When there is a level of difficulty in perception of an object because there is a change in point of view/angle.

What is the following describing?

Ability to tell when word in a conversation ends and when it begins

• Transitional probability

• Statistical learning

• View point invariance

• Speech segmentation

• Inverse projection problem

What is the following describing?

Ability to tell when word in a conversation ends and when it begins

What is the definition of speech segmentation?

Answer explanation

The ability to tell when a word or words in a sentence begin and end.

What is the following describing?

Learning about the likelihood of something occurring in our environment based on our exposure to it.

• Transitional probability

• Statistical learning

• View point invariance

• Speech segmentation

• Inverse projection problem

What is the following describing?

a cognitive process through which individuals acquire knowledge about the statistical regularities and patterns present in their environment

• Transitional probability

• Statistical learning

• View point invariance

• Speech segmentation

• Inverse projection problem