EL ENG 16A Study Guide - Midterm Guide: Linear Combination, Photodiode, Row And Column Vectors

• School: Berkeley
• Department: Electrical Engineering
• Course: EL ENG 16A
• Professor: Elad Alon

Document Summary

12:51 pm photodiode - used to convert visible light into current (an electrical quantity) Modern camera have millions of photodiodes, one for each image pixel. Sensor analog circuit analog to digital post processing. Scanning matrix is used to scan the image is the signal (our sensor readings) is the scanning matrix (the identity matrix) is the original image represented as a column vector (width and height of the original image in pixels) Each row in the matrix has the size of the total number of pixels in the image. Each row represents one pixel that is illuminated (the pixel that we are uncovering) Number of rows of scanning matrix = number of columns of scanning matrix = number of pixels in original image. The first pi(cid:454)el at (cid:894)(cid:1004),(cid:1004)(cid:895) (cid:894)top left(cid:895) i(cid:374) the i(cid:373)age (cid:449)ould (cid:271)e u(cid:374)(cid:272)o(cid:448)ered (cid:271)(cid:455) the ro(cid:449) (cid:373)atri(cid:454) [(cid:1005) (cid:1004) (cid:1004) (cid:1004) (cid:1004) (cid:1004) (cid:1004) (cid:1004) (cid:1004) ]