Image Formation
Inside the Camera – Projection
Inside the Camera – Sensitivity
Sensitivity and Color
Summary
Digital Image Formation
Sampling
Quantization
Summary
(R,G,B) Parameterization of Full Color Images
Grayscale Images
Images as Matrices
Homework I
21. Define subjective brightness and brightness adaptation?
Subjective brightness means intensity as preserved by the human visual system.
Brightness adaptation means the human visual system can operate only from
scotopic to glare limit. It cannot operate over the range simultaneously. It accomplishes
this large variation by changes in its overall intensity.
22. Define weber ratio
The ratio of increment of illumination to background of illumination is called as
weber ratio.(ie) ?i/i
If the ratio (?i/i) is small, then small percentage of change in intensity is needed
(ie) good brightness adaptation.
If the ratio (?i/i) is large , then large percentage of change in intensity is needed
(ie) poor brightness adaptation.
In this article, the basics of capturing an image, image processing to modify and enhance the image are discussed. There are many applications for Image Processing like surveillance, navigation, and robotics. Robotics is a very interesting field and promises future development so it is chosen as an example to explain the various aspects involved in Image Processing .
Rhythmia Medical, a venture-backed company designing an innovative system to treat cardiac arrhythmias, is targeting one of the fastest growing fields in medical devices.
The system includes state of the art signal processing, 3D imaging and catheter fabrication technologies. We are extremely selective in our hiring and employ a small team of super talented individuals whose aim is to have a major impact on developing a breakthrough life-saving technology.
Job Description:
The Biomedical Systems Integration Engineer will participate in the hardware and software development at the company and be involved in the test, design and development of the company’s bioinstrumentation platform.
