Wiki
Version 243 (Kwabena Agyeman, 07/26/2012 01:39 pm)
1 | 5 | Kwabena Agyeman | h1. Wiki |
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2 | 7 | Kwabena Agyeman | |
3 | 242 | Kwabena Agyeman | !/attachments/515/CMUcam4_A.JPG! !/attachments/516/CMUcam4_B.JPG! !/attachments/659/CMUcam4%20Arduino%20Shield%20B%20Little%20-%20Rev%20A.jpg! !/attachments/657/CMUcam4%20Arduino%20Shield%20A%20Little%20-%20Rev%20A.jpg! |
4 | 55 | Kwabena Agyeman | |
5 | 41 | Kwabena Agyeman | h3. *Quick Links* |
6 | 1 | Redmine Admin | |
7 | 71 | Kwabena Agyeman | * [[Quick Start]] |
8 | 71 | Kwabena Agyeman | |
9 | 176 | Kwabena Agyeman | * [[Arduino Interface Library]] |
10 | 175 | Kwabena Agyeman | * [[BASIC Stamp 2 Interface Library]] |
11 | 212 | Kwabena Agyeman | * [[CMUcam4 Graphical User Interface]] |
12 | 173 | Kwabena Agyeman | |
13 | 218 | Kwabena Agyeman | * [[Lextronic Camera|Black Lextronic Camera Documentation]] |
14 | 218 | Kwabena Agyeman | * [[SparkFun Camera|Red SparkFun Camera Documentation]] |
15 | 218 | Kwabena Agyeman | * [[Parallax Camera|Blue Parallax Camera Documentation]] |
16 | 188 | Kwabena Agyeman | |
17 | 217 | Kwabena Agyeman | * [[Firmware Source Code and Binaries]] |
18 | 217 | Kwabena Agyeman | |
19 | 171 | Kwabena Agyeman | * [[Color-tracking Explanation]] |
20 | 171 | Kwabena Agyeman | * [[Tips and Tricks]] |
21 | 185 | Kwabena Agyeman | |
22 | 50 | Kwabena Agyeman | * [[Frequently Asked Questions]] |
23 | 1 | Redmine Admin | * [[Troubleshooting]] |
24 | 198 | Kwabena Agyeman | |
25 | 1 | Redmine Admin | * [[Gallery]] |
26 | 1 | Redmine Admin | * [[People]] |
27 | 1 | Redmine Admin | |
28 | 1 | Redmine Admin | * [[CMUcam1:]] |
29 | 1 | Redmine Admin | * [[CMUcam2:]] |
30 | 1 | Redmine Admin | * [[CMUcam3:]] |
31 | 197 | Kwabena Agyeman | |
32 | 216 | Kwabena Agyeman | * [[Legal Information]] |
33 | 236 | Kwabena Agyeman | |
34 | 236 | Kwabena Agyeman | h3. *Cool Videos* |
35 | 236 | Kwabena Agyeman | |
36 | 241 | Kwabena Agyeman | {{youtube(oLCOUdFDnUc, 400, 300)}} {{youtube(ByGZRh62glw, 400, 300)}} {{youtube(KcDrCIXPxlU, 400, 300)}} |
37 | 241 | Kwabena Agyeman | {{youtube(4VhpHDEIEBg, 400, 300)}} {{youtube(XjI2kwcpDAQ, 400, 300)}} {{youtube(zgVv-cEwN4U, 400, 300)}} |
38 | 63 | Kwabena Agyeman | |
39 | 184 | Kwabena Agyeman | h3. *Cool Projects* |
40 | 184 | Kwabena Agyeman | |
41 | 184 | Kwabena Agyeman | * [[MoBot]] - By: Ramanathan Muthiah |
42 | 184 | Kwabena Agyeman | * [[Multi-Shot Cannon]] - By: Wesley Myers |
43 | 184 | Kwabena Agyeman | |
44 | 41 | Kwabena Agyeman | h3. *Where can I buy a CMUcam4?* |
45 | 26 | Kwabena Agyeman | |
46 | 62 | Kwabena Agyeman | * "Lextronic":http://www.lextronic.fr/ (France) - "Buy Here":http://www.lextronic.fr/P1890-module-de-reconnaissance-video-cmucam4.html |
47 | 98 | Kwabena Agyeman | |
48 | 104 | Kwabena Agyeman | * "Active Robots":http://active-robots.com/ (United Kingdom) - "Buy Here":http://www.active-robots.com/cmucam4.html |
49 | 109 | Kwabena Agyeman | * "Antratek":http://www.antratek.nl (Netherlands) - "Buy Here":http://www.antratek.nl/Robotcameras.html |
50 | 108 | Kwabena Agyeman | * "Barcelona Cybernetics":http://www.bcncybernetics.com/ (Spain) - "Buy Here":http://www.bcncybernetics.com/CMUcam4_Open_Source_Embedded_Color_Vision_Sensor_p/ard-cmucam4.htm |
51 | 107 | Kwabena Agyeman | * "Elekronikladen":http://www.elmicro.com/ (Germany) - "Buy Here":http://elmicro.com/de/cmucam4.html |
52 | 109 | Kwabena Agyeman | * "Lawicel":http://www.lawicel-shop.se/ (Sweden) - "Buy Here":http://www.lawicel-shop.se/prod/Embedded-Vision-Sensor_873820/ovrigt_8852/SWE/SEK |
53 | 104 | Kwabena Agyeman | * "Innovative Electronics":http://innovativeelectronics.com/index_indo.php (Indonesia) - "Buy Here":http://innovativeelectronics.com/innovative_electronics/cmucam4.htm |
54 | 108 | Kwabena Agyeman | * "No DNA":http://www.nodna.de/index.php?sid=0264dd411c09dc61545d27b0fcd0f101 (Germany) - "Buy Here":http://www.nodna.de/Roboter-und-Zubehoer/Sensoren/Kameras-Vision-Licht/CMUcam4--2203.html?sid=0264dd411c09dc61545d27b0fcd0f101 |
55 | 108 | Kwabena Agyeman | * "Probyte":http://probyte.fi/oscom/index.php (Finland) - "Buy Here":http://probyte.fi/oscom/product_info.php?products_id=534&language=en |
56 | 98 | Kwabena Agyeman | * "Robot Italy":http://www.robot-italy.com/index.php (Italy) - "Buy Here":http://www.robot-italy.com/product_info.php?products_id=2456 |
57 | 1 | Redmine Admin | * "Robot Electronics":http://www.robot-electronics.co.uk/ (United Kingdom) - "Buy Here":http://www.robot-electronics.co.uk/acatalog/Cameras.html |
58 | 110 | Kwabena Agyeman | * "Robot R Us":http://www.robot-r-us.com/ (Singapore) - "Buy Here":http://www.robot-r-us.com/cameras/cmucam3-camera.html |
59 | 109 | Kwabena Agyeman | * "Robot Shop":http://www.robotshop.com/ (America) - "Buy Here":http://www.robotshop.com/cmucam4-robot-vision-system-sensor-3.html |
60 | 109 | Kwabena Agyeman | * "Robot Store HK":http://www.RobotStoreHK.com/ (Hong Kong) - "Buy Here":http://www.robotstorehk.com/cmucam4.html |
61 | 109 | Kwabena Agyeman | * "Roboter-Telie":http://www.roboter-teile.de/ (Germany) - "Buy Here":http://www.roboter-teile.de/Oxid/Kamera-Module/CMUcam4-Fertigmodul.html |
62 | 220 | Kwabena Agyeman | * "Robotui":http://www.robotui.com/ (Spain) - "Buy Here":http://www.robotui.com/product.php?id_product=90 |
63 | 109 | Kwabena Agyeman | * "Sander Electronic":http://www.sander-electronic.de/ (Germany) - "Buy Here":http://www.sander-electronic.de/gm00032.html |
64 | 243 | Kwabena Agyeman | * "Singapore Robotic":http://www.sgbotic.com/index.php/ (Singapore) - "Buy Here":http://www.sgbotic.com/index.php?dispatch=products.view&product_id=1126 |
65 | 98 | Kwabena Agyeman | |
66 | 63 | Kwabena Agyeman | h3. *Typical Uses* |
67 | 63 | Kwabena Agyeman | |
68 | 90 | Kwabena Agyeman | The CMUcam4 can be used to track colors or collect basic image statistics. The best performance can be achieved when there are highly contrasting and intense colors. For instance, it can easily track a red ball on a white background, but it would be hard to differentiate between different shades of brown in changing light. Tracking colorful objects can be used to localize landmarks, follow lines, or chase moving beacons. Using color statistics, it is possible for the CMUcam4 to monitor a scene, detect a specific color, or do primitive motion detection. If the CMUcam4 detects a drastic color change, then chances are something in the scene changed. Using “line mode”, the CMUcam4 can generate low resolution binary images of colorful objects. This can be used to do more sophisticated image processing that includes line following with branch detection, or even simple shape recognition. These more advanced operations require custom algorithms to post process the binary images sent from the CMUcam4. As is the case with a normal digital camera, this type of processing might require a computer or at least a fast microcontroller. |
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70 | 63 | Kwabena Agyeman | h3. *Typical Configuration* |
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72 | 99 | Kwabena Agyeman | The most common configuration for the CMUcam4 is to have it communicate to a master processor via a standard TTL serial port. This “master processor” could be a computer (through USB or RS232), Arduino, Basic Stamp, PIC, or similar microcontroller. The CMUcam4 is small enough to add simple vision to embedded systems that can not afford the size or power of a standard computer based vision system. Its communication protocol is designed to accommodate even the slowest of processors. The CMUcam4 supports various baud rates to accommodate slower processors. For even slower processors, the CMUcam4 can operate in “poll mode”. In this mode, the host processor can ask the CMUcam4 for just a single packet of data. This gives slower processors the ability to more easily stay synchronized with the data. It is also possible to add a delay between individual serial data characters using the “delay mode” command. Due to communication delays, both poll mode and delay mode will lower the total number of frames that can be processed in one second. |