Consider imaging an organ with a tumor. In the resulting image, the organ has an intensity...
Consider imaging an organ with a tumor. In the resulting image, the organ has an intensity I0 and the tumor has intensity It > I0. Which of the following methods can improve the local contrast if the organ is treated as background:
a) Multiplying the image by a constant α.
b) Subtracting a constant 0 < Is < I0 from the image.
Assume I0 = 100, It = 125, α = 3, Is = 50.
c) Calculate the local contrast between the tumor and the organ.
d) Calculate the local contrast after multiplying the image by α.
e) Calculate the local contrast after subtracting Is.
f) Calculate the local contrast after subtracting Is and then multiplying by α.
g) Calculate the local contrast after multiplying by α and then subtracting Is.
If I0 = 100 and It = 125, but α = 0.1 and Is = 90:
h) How does the local contrast change when subtracting Is and then multiplying by α.
i) How does the local contrast change when multiplying by α and then subtracting Is.
Homework Answers
Add Answer to:
Consider imaging an organ with a tumor. In the resulting image,
the organ has an intensity...
Craig is a 55-year old male who has been relatively sedentary most of his life. He...
Craig is a 55-year old male who has been relatively sedentary most of his life. He works an 8 a.m. – 5 p.m. desk job and ventures out to a fast food restaurant on most days, for his lunch. Beside the occasional nightly walk with his dog, Craig does not engage in regular physical activity. About a month ago, Craig paid a visit to his primary care physician due to frequent chest pain and shortness of breath after walking short...
The ACME Manufacturing Company has hired you to help automate their production assembly line. Cameras have...
The ACME Manufacturing Company has hired you to help automate
their production assembly line. Cameras have been placed above a
conveyer belt to enables parts on the belt to be photographed and
analyzed. You are to augment the system that has been put in place
by writing C code to detect the number of parts on the belt, and
the positions of each object. The process by which you will do this
is called Connected Component Labeling (CCL). These positions...
Need help with stats true or false questions Decide (with short explanations) whether the following statements are true or false a) We consider the model y-Ao +A(z) +E. Let (-0.01, 1.5) be a 95% con...
Need help with stats true or false questions
Decide (with short explanations) whether the following statements are true or false a) We consider the model y-Ao +A(z) +E. Let (-0.01, 1.5) be a 95% confidence interval for A In this case, a t-test with significance level 1% rejects the null hypothesis Ho : A-0 against a two sided alternative. b) Complicated models with a lot of parameters are better for prediction then simple models with just a few parameters c)...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of the other side, and the sine, cosine and tangent of each of the other two angles. A man running 4 m/s is passed by a car at 20 m/s, both heading East. What is the velocity of the man relative to the car? How far apart are the 20 seconds after the car passes the man? A ball is thrown vertically upwards from the...
1. What is the purpose of a constant volume gas thermometer. How does it work? 2. What is the difference, if any, betwee...
1. What is the purpose of a constant volume gas thermometer. How does it work? 2. What is the difference, if any, between a isothermal and adiabatic thermodynamic process. Draw them on a pV diagram. 3. Does the First Law of Thermodynamics apply to solids and liquids? Why or why not. 4. What is the most important heat transfer mechanism on earth where there is an atmosphere? Explain how this can cool a nuclear or coal fired power plant, and...
7. Smokers are known to have about 50% higher CL than nonsmokers for theophylline. If the...
7. Smokers are known to have about 50% higher CL than nonsmokers for theophylline. If the average observed AUC after administration of 300 mg IV theophylline in nonsmokers is 100 mg.hr/L, what is the expected AUC in smokers after administration of the same 300 mg dose? Theophylline undergoes linear pharmacokinetics 2. After administration of a single 400 mg dose of a drug, a linear plot of the serum concentration-time prorile on a semi-log graph paper showed a y-intercept of 1mg/mL...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Spring Constants & Periods By varying the mass placed on a spring, the period of oscillation...
Spring Constants & Periods By varying the mass placed on a spring, the period of oscillation can be changed. When multiple data sets are collected and plotted, the spring constant can be determined. Before data was collected, the minimum and maximum masses were determined by visually watching the harmonic motion. For the minimum, a mass was chosen such that the resulting simple harmonic motion had an appreciable amplitude without significant dampening over ten periods. For the maximum, the mass was...
Just 5-8 1 Analytics of the Solow Model In the Solow economy, people consume a good...
Just 5-8
1 Analytics of the Solow Model In the Solow economy, people consume a good that firms produce with technology Y (which we assume to be constant) and f is a Cobb-Douglas production function Af (K, L), where A is TFP f(K, L) KL-a Here K is the stock of capital, which depreciates at rate δ E (0, 1) per period, and L is the labor force, which grows exogenously at rate n > 0. Here employment is always...
Fleda's Beauty Company has $200,000 of total assets and earns 20 percent interest and taxes on...
Fleda's Beauty Company has $200,000 of total assets and earns 20 percent interest and taxes on these assets. The ratio of total debts to total assets (or DR been set at 50 percent. The interest rate on short-term debt is 7 percent, while the interest rate on long-term debt is 10 percent. A conservative policy calls for only long-term debt with no short-term debt; an intermediate policy calls for 50 percent short-term debt and 50 percent long-term debt; and an...
The ACME Manufacturing Company has hired you to help automate
their production assembly line. Cameras have been placed above a
conveyer belt to enables parts on the belt to be photographed and
analyzed. You are to augment the system that has been put in place
by writing C code to detect the number of parts on the belt, and
the positions of each object. The process by which you will do this
is called Connected Component Labeling (CCL). These positions...
Need help with stats true or false questions
Decide (with short explanations) whether the following statements are true or false a) We consider the model y-Ao +A(z) +E. Let (-0.01, 1.5) be a 95% confidence interval for A In this case, a t-test with significance level 1% rejects the null hypothesis Ho : A-0 against a two sided alternative. b) Complicated models with a lot of parameters are better for prediction then simple models with just a few parameters c)...
A right triangle has hypotenuse 13 cm and one side 7 cm. Find the length of the other side, and the sine, cosine and tangent of each of the other two angles. A man running 4 m/s is passed by a car at 20 m/s, both heading East. What is the velocity of the man relative to the car? How far apart are the 20 seconds after the car passes the man? A ball is thrown vertically upwards from the...
7. Smokers are known to have about 50% higher CL than nonsmokers for theophylline. If the average observed AUC after administration of 300 mg IV theophylline in nonsmokers is 100 mg.hr/L, what is the expected AUC in smokers after administration of the same 300 mg dose? Theophylline undergoes linear pharmacokinetics 2. After administration of a single 400 mg dose of a drug, a linear plot of the serum concentration-time prorile on a semi-log graph paper showed a y-intercept of 1mg/mL...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Spring Constants & Periods By varying the mass placed on a spring, the period of oscillation can be changed. When multiple data sets are collected and plotted, the spring constant can be determined. Before data was collected, the minimum and maximum masses were determined by visually watching the harmonic motion. For the minimum, a mass was chosen such that the resulting simple harmonic motion had an appreciable amplitude without significant dampening over ten periods. For the maximum, the mass was...
Just 5-8
1 Analytics of the Solow Model In the Solow economy, people consume a good that firms produce with technology Y (which we assume to be constant) and f is a Cobb-Douglas production function Af (K, L), where A is TFP f(K, L) KL-a Here K is the stock of capital, which depreciates at rate δ E (0, 1) per period, and L is the labor force, which grows exogenously at rate n > 0. Here employment is always...
Fleda's Beauty Company has $200,000 of total assets and earns 20 percent interest and taxes on these assets. The ratio of total debts to total assets (or DR been set at 50 percent. The interest rate on short-term debt is 7 percent, while the interest rate on long-term debt is 10 percent. A conservative policy calls for only long-term debt with no short-term debt; an intermediate policy calls for 50 percent short-term debt and 50 percent long-term debt; and an...
Most questions answered within 3 hours.
-
Compare a two-year bond with two successive one-year bonds in a
situation in which an investor...
asked 16 minutes ago -
Chapter 6
Search the internet and find a newspaper example of a price
ceiling, price floor...
asked 11 minutes ago -
Sarah Bates, calendar year taxpayer, started a new business on
October 8th. A number of start-up...
asked 12 minutes ago -
You and your friends are playing in the swimming pool with a
40-cm-diameter beach ball. How...
asked 17 minutes ago -
Patterson Development sometimes sells property on an installment
basis. In those cases, Patterson reports income in...
asked 29 minutes ago -
please help with these two example, i want to double check my
work. thanks
1.
sum:=0...
asked 26 minutes ago -
in the formation of 1.0 mole of the following crystalline solids
from the gaseous ions most...
asked 31 minutes ago -
Please answer Letter G only.
Price
Quantity
TR
MR
MC
TC
Profit
$15,000
0
0
----...
asked 32 minutes ago -
You are required to develop and submit a 12-month integrated
marketing communications plan for the KFC...
asked 34 minutes ago -
Let v=(1,-4,12) and w=(3,5,-1) be vectors.
What is 2v-3w?
asked 50 minutes ago -
What is the [A2-] (in mol L-1) of a solution containing 1.355
mol L-1 of a...
asked 46 minutes ago -
Suppose an equilibrium mixture consists of 0.46 atm
N2O4 and 2.0 atm NO2, and the
volume...
asked 43 minutes ago