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Calculated the mean (x.y),the second central moments(µ20,µ02.µ11)

Rotation invariant chain codes of the object boundaries

 

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1.The 8×8 image segment below contains two object region with intensity values of 4 and 7,respectively.Represent the object shapes by the methods of

a.Chain Codes of the object boundaries (assuming 8-connection).

b.Rotation invariant chain codes of the object boundaries.

c.Ψ-s Curves of the object boundaries (sketch)

d.Quad Trees of the object regions

e.Calculated the mean (x.y),the second central moments(µ20,µ02.µ11) and the  eccentricity

e

 

 

for each region. respectively.

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2.An object is detected in an image based on some geometric measurement,say m1 and m2.The object may belong to one of two possible types,say type A and type B.We know that if the object belongs to type A, than a probability  that function f(m1,m2)=x is 0.5.If the object belongs to type B, than a probability that function f(m1,m2)=x is 0.6. We also known that there is a 60% chance that the object in the image could belong to type A and 40% chance that the object could belong to type B. Now we found f(m1,m2)=x,that is the probability that the object belong to type A? Belongs to type B?

 

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