Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask MATLAB Expert

problem 1: Choice of parameterization

We will use the Hough Transform to recognize straight lines in contour images. describe why the polar coordinates representation of lines, ρ = x cos θ + y sin θ, is more suitable for line detection than the standard line representation y = ax + b.

problem 2: HT as a point to curve transformation

Show that points that lie on the same curve ρ = x0 cos θ + y0 sin θ in parameter space with axes (ρ, θ) all represent straight lines in image space which intersect at a specific image point (x0, y0).

Problem 3: Edge direction information

describe why priory information about edge directions may increase the speed of Hough Transform-based image segmentation. Hint: Best is if you make a numerical ex where N points in image space are transformed into N curves in parameter space, sampled as curves with M sample points. Estimate the number of operations with and without edge direction information, and make a sketch to describe.

Problem 4: Compensation for errors

Given a straight line g0 passing through two opposite corner points of a quadratic image (upper right to lower left). The quantization of cells in parameter space is given by Δρ and Δθ. We would like to get a feeling for the error region in image space (region for all points in image space) which contributes to the cell centred at (ρ0, θ0) representing the straight line g0. You can think of a cell in parameter space cantered at (ρ0, θ0) with widths Δρ and Δθ, i.e. widths + Δ/2 for ρ and θ.

a) Do the calculations b) and c) for putting the image origin (0, 0) lower left and also for putting the image origin at the centre of the image. Discuss the differences.

b) Points in the error region contribute to our parameter cell, not just the central line g0. Which is the longest straight line piece in the image orthogonal to g0 that could erroneously contribute with its full length to the parameter cell centred at (ρ0, θ0) Hint: find out intersections of the bounding lines of the error region with the image boundary, sketch the situation, and use this to find your solution.
 
c) find out a numerical ex for an image size of 512 x 512 pixels and two parameter space quantizations with (Δθ = 1o, Δρ = 2 pixels), and (Δθ = 5o, Δρ = 5 pixels).

MATLAB, Engineering

  • Category:- MATLAB
  • Reference No.:- M92706

Have any Question? 


Related Questions in MATLAB

Problem -tom cat is chasing jerry mouse the initial

Problem - Tom cat is chasing Jerry mouse the initial distance between them is S 0 = 100m. Tom runs V c = 4-at m/s (negative accident) Jerry's velocity depends on the distance between Tom& Jerry V = Vmax - Ks (3-0.025 m/s ...

1 calculate the following for the function f x e-3x -

1) Calculate the following for the function f (x) = e -3x - 2x a. Calculate the derivative of the function by hand. Write a MATLAB function that calculates the derivative of this function and calculate the derivative at ...

Use matlab to solve the following equations please i plot

Use Matlab to solve the following equations. Please (i) plot the solution as a function of t for t  ∈ [0, 100]. (ii) draw the phase diagram of the ODE. 1. dy/dt = y 2 + y with y(0) = 1         dy 1 /dt = y 2 2.           ...

Question 1 a what is the period of the forced oscillation

Question 1. (a) What is the period of the forced oscillation? What is the numerical value (modulo 2Π) of the angle α defined by? (b) In this question you are asked to modify the file LAB06ex1.m in order to plot the compl ...

Question 1backgroundclimate change is a change in global or

QUESTION 1 Background Climate change is a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmosph ...

Reports of projectproblem design a fourbar grashof

REPORTS OF PROJECT PROBLEM: Design a fourbar Grashof crank-rocker to give? (Everyone will determine the terms given by professor) of rocker rotation with equal time forward and back, from a constant speed motor input. 1- ...

Plotting and computer animation in matlabinstructions for

Plotting and computer animation in MATLAB Instructions: For each of the following exercise, create an M-file to store the MATLAB commands. Copy and paste the M-file into a text document. For problems 1 and 2, include in ...

Matlabproject descriptionwrite a mileage per gallons and

MATLAB Project description: Write a mileage per Gallons and miles per dollar calculator program using two functions, one to calculate MPG and one to calculate MPD. The application will prompt the user to type the odm rea ...

Car parking systema building of 10 floors is used for

CAR PARKING SYSTEM A building of 10 floors is used for parking cars. The area of each floor can be used for parking 100 cars. An automatic parking system is used to detect which parking slot is free at each moment. So, t ...

Problem 1 10pts the csu-chill radar made observations of

Problem 1 [10pts.]: The CSU-CHILL radar made observations of the Ponnequin Wind Farm located on the boarder of Wyoming and Colorado near I-25. The wind farm is approximately 62 km away from the radar. Complex valued digi ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen