ECE418
Introduction to Image and Video Processing
Homework #1
Due February 2, 2012
Read Lecture Notes Chapter 1 (all except section 1.5.3).
Problem 1. Indicate whether the following signals are symmetric, circularly symmetric,
and/or separable:
(a) x(n1 ,
University of Illinois
Spring 2013
ECE 418 Exam I
Tuesday, February, 2013
7:00 p.m. to 8:45 p.m.
Name: (in BLOCK CAPITALS)
University ID Number:
Signature:
This exam is closed book. Cheat sheets, calculators, laptop computers, PDAs,
iPods, cellphones, e-m
ECE418
Introduction to Image and Video Processing
Homework #1 Solutions
Due February 2, 2012
Read Lecture Notes Chapter 1 (all except section 1.5.3).
Problem 1. Indicate whether the following signals are symmetric, circularly symmetric,
and/or separable:
University of Illinois
Spring 2013
ECE 418 Exam II
Tuesday, April, 2, 2013
9:30 p.m. to 10:50 p.m.
Name: (in BLOCK CAPITALS)
University ID Number:
Signature:
This exam is closed book. Cheat sheets, calculators, laptop computers, PDAs,
iPods, cellphones, e
ECE418
Introduction to Image and Video Processing
Homework #5
Due April 12, 2012
Problem 1. A stationary, random 1D signal x(n) has spectral density
2 : if |f | < 0.25
0 : if 0.25 |f | < 0.5.
Sx (f ) =
2
The signal x(n) is corrupted by additive white Gaus
ECE418
Introduction to Image and Video Processing
Homework #6
Due April 26, 2012
Problem 1. A bilevel image is scanned line by line. The runs on each line have the following
probability distribution p(n), where n is runlength.
P(n)
1/2
1/4
0
1/4
1
3
10
n
ECE 418
Introduction to Image and Video Processing
Homework #2
ljue February 16:2012
Read Lecture Notes Chapters 2 and 3.
Problem 1. This problem is motivated by a problem arising in tomography. The image
m[t1,t2) has EDFT Xa(l,22). This image is not obse
ECE418
Introduction to Image and Video Processing
Homework #5
Due April 12, 2012
Problem 1. A stationary, random 1D signal x(n) has spectral density
Sx (f ) =
2 : if |f | < 0.25
0 : if 0.25 |f | < 0.5.
2
The signal x(n) is corrupted by additive white Gaus
ECE418
Introduction to Image and Video Processing
Homework #4
Due March 29, 2012
Problem 1. A timevarying scene is to be recorded by a digital color camera through a 12x16
degree rectangular window:
Time-Varying
Scene
Camera
Lens
1111111
0000000
1111111
0
ECE418
Introduction to Image and Video Processing
Homework #3
Due March 8, 2012
Problem 1. An image xa (t1 , t2 ) is scanned using a vidicon camera and subsequently sampled
with horizontal and vertical periods T1 = 2 and T2 = 1. Two cameras are considered
HW6 Solutions
May 3, 2013
ab
and m = (m1 , m2 ) and n = (n1 , n2 ) where m1 ,
cd
m2 , n1 , n2 are integers. The m = An. For a 1-to-1 mapping to exist
between m and n not only does the inverse mapping n = A1 m need
to exist, but also the inverse of A must
ECE418
Introduction to Image and Video Processing
Homework #1 Solutions
Due February 2, 2012
Read Lecture Notes Chapter 1 (all except section 1.5.3).
Problem 1. Indicate whether the following signals are symmetric, circularly symmetric,
and/or separable:
ECE 418 Midterm II Practice Problems
1. For the horizontal derivative 3 3 FIR approximation, called the Sobel
operator, consider calculating samples of its frequency response with a 2D DFT program. Assume the DFT is of size N N for some large values
of N.
ECE 418: Introduction to Image & Video Processing
Spring 2015
Homework #1
Assigned: Tue 01/20/2015
Due: Tue 01/27/2015 in class
1. High-definition television (HDTV) generates images with 1125 horizontal TV lines interlaced
(where every other line is paint
ECE 418: Introduction to Image & Video Processing
Spring 2015
Homework #3
Assigned: Tue 02/03/2015
Due: Tue 02/10/2015 in class
1. In this problem, you are to compute the continuous Fourier transform (CFT) of some characteristic functions. Let us denote t
ECE 418: Introduction to Image & Video Processing
Spring 2015
Homework #2
Assigned: Tue 01/27/2015
Due: Tue 02/03/2015 in class
1. The implementation of linear spatial filters requires moving center of a mask through an
image and, at each location, comput
University of Illinois Spring 2016
ECE418 Moulin
Midterm Exam
Monday. l‘bln‘um‘y ‘29, 2016
fr'oLumN SET
Name
Score
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