Chapter 7, Segmentation II Video Solutions, Image processing, Analysis, and Machine Vision

02:12

Problem 1

What is a probability density mode?

Alexandra Koziel

Numerade Educator

01:26

Problem 2

Given a set of multidimensional samples, what is the result of the mean-shift procedure?

Evelyn Cunningham

Numerade Educator

Problem 3

Describe the principle of mean-shift segmentation.

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Problem 4

Give equations for the normal kernel, its profile, and its derivative.

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01:15

Problem 5

Give equations for the Epanechnikov kernel, its profile, and its derivative.

Stephen Hobbs

Numerade Educator

Problem 6

What is a basin of attraction?

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01:30

Problem 7

Give an example of a useful internal snake energy and explain its aim and influence.

Liv Meaghan

Numerade Educator

01:25

Problem 8

Give an example of a useful external snake energy and explain its aim and influence.

Rabia Bibi

Numerade Educator

Problem 9

Design an image energy term of a snake to trace lines of gray level 128.

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Problem 10

Give a continuous snake evolution equation and describe its discretization in time.

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Problem 11

Give a continuous snake evolution equation and describe its discretization in space.

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Problem 12

Explain the conceptual difference between snakes and balloons.

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01:18

Problem 13

What is the purpose of the gradient vector flow field for active contour segmentation?

Ajay Singhal

Numerade Educator

Problem 14

What are the advantages and disadvantages of a level set representation?

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Problem 15

How shoukd we choose the time step of a level set evolution?

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01:49

For Level Set 'speed functions'
(a) Explain the main role the function in image segmentation.
(b) Give a general expreasion for a function based on curvature and constant deformation.
(c) Using this function, explain the behavior leading to convergence.

Lucas Finney

Numerade Educator

Problem 17

Define fuzzy connectedness.

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Problem 18

Explain how an optimal pair of borders can be simultaneously detected using graph searching. How is the cost of a pair of border points determined from the underlying image data?

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