{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture13_ImageRestoration

# lecture13_ImageRestoration - Image Restoration Yao Wang...

This preview shows pages 1–6. Sign up to view the full content.

Image Restoration Yao Wang Polytechnic Institute of NYU, Brooklyn, NY 11201 Partly based on A. K. Jain, Fundamentals of Digital Image Processing, and Gonzalez/Woods, Digital Image Processing Figures from Gonzalez/Woods, Digital Image Processing

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Yao Wang, NYU-Poly EL5123: Image Restoration 2 Lecture Outline Introduction Image degradation model Blurring caused by finite camera exposure Blurring caused by motion Inverse filtering Wiener filter
Yao Wang, NYU-Poly EL5123: Image Restoration 3 Examples

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Yao Wang, NYU-Poly EL5123: Image Restoration 4 Degradation Model General model g(x,y)= T (f(x,y)) + n(x,y) T( ) may not be linear Modeling T ( ) by a filtering operation g(x,y)= f(x,y) * h(x,y) + n(x,y) This means that the degradation operator is linear and shift invariant h(x,y) is unknown and needs to be estimated (system identification problem) Given h(x,y) and some statistics of n(x,y), how to recover f(x,y) from g(x,y)? How to estimate h(x,y) and statistics of n(x,y)?
Yao Wang, NYU-Poly EL5123: Image Restoration 5 Degradation due to Finite Size Sensor Ideally the value of a pixel should be the light

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern