DIGJ 2220 Lecture Notes - Lecture 3: Microsoft Powerpoint, Human Eye, Enhanced-Definition Television

• School: University of Windsor
• Department: Digital Journalism
• Course: DIGJ 2220
• Professor: Sinasac

Document Summary

Think of a 2d array of millions of tiny light collectors. Once converted to electrons, reads value of each cell in image. Consumes lots of power and consume 100 times more than equivalent cmos. Mass produced for longer period of time, higher quality pixels. Measured: width x height or total count ex. Lens and sensor designed for sd of hd. Dar (display)= sar (storage) x par (pixel) The frequency at which an image device produces or displays unique consecutive images called frames. Expressed in frames per second or in progressive scan monitors as hertz. Common frame rates 24, 30, 60, 50. Human eye can process about 12 per second. Process that horizontally squeezes an image 16:9 to 4:3. Focal length is distance between lens and image sensor. Max and min is called zoom range. Scene will be out of focus if light doesn"t converge on image sensor but in front or behind.