1. EEL 6883 Spring 2007 Software Engineering II Gleyner Garden Video Surveillance Project

2. Introduction Motion JPG IP Cameras are rapidly becoming more popular and common Used by private schools and daycare centers Used by private schools and daycare centers Private companies use them to monitor multiple buildings/areas simultaneously Private companies use them to monitor multiple buildings/areas simultaneously Private homeowners use them for home security Private homeowners use them for home security

3. Motivation 1. Security I live in Melbourne, but my family and I stay in Orlando at least one weekend a month… I live in Melbourne, but my family and I stay in Orlando at least one weekend a month… I would like a supplemental security system to let me know what’s going on at my front door. I would like a supplemental security system to let me know what’s going on at my front door. 2. DOGS! Or Rude Owners I love ‘em, but I don’t have one I love ‘em, but I don’t have one I shouldn’t have to watch where I step when I’m playing in the yard with my 2 year-old daughter, but I do. I shouldn’t have to watch where I step when I’m playing in the yard with my 2 year-old daughter, but I do.

4. Motivation 3. Seemed like it would be fun There are plenty of applications out there that do this There are plenty of applications out there that do this The camera I purchased came bundled with something better than what I created The camera I purchased came bundled with something better than what I created

5. Design Started with this: Started with this:

6. Design With a new baby coming in 8 weeks, I should probably stick to one $200 camera With a new baby coming in 8 weeks, I should probably stick to one $200 camera

7. Design Documentation, courtesy of doxygen Documentation, courtesy of doxygen Documentation

8. Camera Looked into: Looked into: D-Link D-Link Axis Axis Panasonic Panasonic Mostly read customer reviews on merchant websites like Amazon

9. Camera Went with this one: Went with this one: http://www.securityideas.com/stca1.html

10. Motion Detection Image processing library: CxImage (FREE!) Image processing library: CxImage (FREE!) Algorithm goes as follows: Algorithm goes as follows: Resize the image to an arbitrary # of pixels using CxImage::Resample Resize the image to an arbitrary # of pixels using CxImage::Resample CxImage::FFT2 Computes the bidimensional FFT or DFT of the image CxImage::FFT2 Computes the bidimensional FFT or DFT of the imageFFT or DFT FFT or DFT Using transformed image, I loop through it and create an image signature array of a set size (if you have a lot of processing power go with a higher #) Using transformed image, I loop through it and create an image signature array of a set size (if you have a lot of processing power go with a higher #) Store image signature array as your base image Store image signature array as your base image

11. Motion Detection Do the same thing again for subsequent images Do the same thing again for subsequent images Create a normalized # we can map to our “sensitivity threshold” Create a normalized # we can map to our “sensitivity threshold” If the threshold exceeds the calculated difference in the image, we have detected motion If the threshold exceeds the calculated difference in the image, we have detected motion

12. Problems Very sensitive to the amount of light Very sensitive to the amount of light Solution could be to automatically calculate a base image every half hour or so Solution could be to automatically calculate a base image every half hour or so Don’t have a mechanism for limiting the amount of emails sent, if motion persists Don’t have a mechanism for limiting the amount of emails sent, if motion persists I could limit the # of emails sent to a certain # per period of time I could limit the # of emails sent to a certain # per period of time

13. Demonstration Hope this works… never tried it from here Hope this works… never tried it from here