Hardware Project: Refining a Multispectral Imaging System - Revision history

imported>Projects221: /* Issues with previous set-up */

2014-03-23T20:50:47Z

Issues with previous set-up

← Older revision		Revision as of 20:50, 23 March 2014
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	[https://www.youtube.com/watch?v=XadlDJRKlA8&feature=youtu.be Video of using filter wheel manually]		[https://www.youtube.com/watch?v=XadlDJRKlA8&feature=youtu.be Video of using filter wheel manually]
			[[File: manualFilterWheel_screenShot.png\|thumb\|center\|border\|600px]]

	=== Design Specifications ===		=== Design Specifications ===

imported>Projects221: /* Electrical/Software Results */

2014-03-23T20:47:03Z

Electrical/Software Results

← Older revision		Revision as of 20:47, 23 March 2014
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	A video of the system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system]. Though it is not shown in the video, it is possible to run the system with one line of input in the command line.		A video of the system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system]. Though it is not shown in the video, it is possible to run the system with one line of input in the command line.

			[[File: FinalVideoScreenShot.png\|thumb\|center\|border\|600px]]

	=== Image Results ===		=== Image Results ===

imported>Projects221: /* Electrical/Software Design */

2014-03-23T20:44:50Z

Electrical/Software Design

← Older revision		Revision as of 20:44, 23 March 2014
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	It gets the current trigger, before setting it to mode 0, the standard external trigger. The camera starts integrating incoming light from external trigger input falling/rising edge. In the diagram below, the exposure time describes the integration time:		It gets the current trigger, before setting it to mode 0, the standard external trigger. The camera starts integrating incoming light from external trigger input falling/rising edge. In the diagram below, the exposure time describes the integration time:

	[[File: Trigger_Mode_0.JPG\|thumb\|center\|border\|600x500px\|Image taken from ~~FlyCap~~ technical manual, linked to in components section]]		[[File: Trigger_Mode_0.JPG\|thumb\|center\|border\|600x500px\|Image taken from Point Grey technical manual, linked to in components section.]]

	It gets the current strobe settings, before setting it to GPIO Mode 3. This mode outputs a voltage pin of fixed delay, relative either to the start of integration or to the time of an asynchronous trigger. The previous is the default setting. When in this mode, a GPIO pin can be configured to output a variable strobe pattern. The trigger source is set (software or external). It polls the camera to ensure it is ready, gets and sets its configuration. It also sends the Arduino a 'Send Filter Wheel to Home' command via a software trigger. This starts the next phase, image acquisition.		It gets the current strobe settings, before setting it to GPIO Mode 3. This mode outputs a voltage pin of fixed delay, relative either to the start of integration or to the time of an asynchronous trigger. The previous is the default setting. When in this mode, a GPIO pin can be configured to output a variable strobe pattern. The trigger source is set (software or external). It polls the camera to ensure it is ready, gets and sets its configuration. It also sends the Arduino a 'Send Filter Wheel to Home' command via a software trigger. This starts the next phase, image acquisition.

imported>Projects221: /* Electrical/Software Design */

2014-03-23T20:43:39Z

Electrical/Software Design

← Older revision		Revision as of 20:43, 23 March 2014
Line 129:		Line 129:
	The program had the following logic flow:		The program had the following logic flow:

	[[File: Code_Flow_Chart.jpeg\|thumb\|center\|border\|600x500px~~\|Image from FlyCap technical manual, linked to in components section~~]]		[[File: Code_Flow_Chart.jpeg\|thumb\|center\|border\|600x500px]]

	Connection Phase:		Connection Phase:
Line 139:		Line 139:
	It gets the current trigger, before setting it to mode 0, the standard external trigger. The camera starts integrating incoming light from external trigger input falling/rising edge. In the diagram below, the exposure time describes the integration time:		It gets the current trigger, before setting it to mode 0, the standard external trigger. The camera starts integrating incoming light from external trigger input falling/rising edge. In the diagram below, the exposure time describes the integration time:

	[[File: Trigger_Mode_0.JPG\|thumb\|center\|border\|600x500px]]		[[File: Trigger_Mode_0.JPG\|thumb\|center\|border\|600x500px\|Image taken from FlyCap technical manual, linked to in components section]]

	It gets the current strobe settings, before setting it to GPIO Mode 3. This mode outputs a voltage pin of fixed delay, relative either to the start of integration or to the time of an asynchronous trigger. The previous is the default setting. When in this mode, a GPIO pin can be configured to output a variable strobe pattern. The trigger source is set (software or external). It polls the camera to ensure it is ready, gets and sets its configuration. It also sends the Arduino a 'Send Filter Wheel to Home' command via a software trigger. This starts the next phase, image acquisition.		It gets the current strobe settings, before setting it to GPIO Mode 3. This mode outputs a voltage pin of fixed delay, relative either to the start of integration or to the time of an asynchronous trigger. The previous is the default setting. When in this mode, a GPIO pin can be configured to output a variable strobe pattern. The trigger source is set (software or external). It polls the camera to ensure it is ready, gets and sets its configuration. It also sends the Arduino a 'Send Filter Wheel to Home' command via a software trigger. This starts the next phase, image acquisition.

imported>Projects221: /* Electrical/Software Design */

2014-03-23T20:42:42Z

Electrical/Software Design

← Older revision		Revision as of 20:42, 23 March 2014
Line 129:		Line 129:
	The program had the following logic flow:		The program had the following logic flow:

	[[File: Code_Flow_Chart.jpeg\|thumb\|center\|border\|600x500px]]		[[File: Code_Flow_Chart.jpeg\|thumb\|center\|border\|600x500px\|Image from FlyCap technical manual, linked to in components section]]

	Connection Phase:		Connection Phase:

imported>Projects221: /* Electrical/Software Results */

2014-03-23T20:32:42Z

Electrical/Software Results

← Older revision		Revision as of 20:32, 23 March 2014
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	The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.		The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.


	A video of the system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system]. Though it is not shown in the video, it is possible to run the system with one line of input in the command line.		A video of the system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system]. Though it is not shown in the video, it is possible to run the system with one line of input in the command line.

imported>Projects221: /* Electrical/Software Results */

2014-03-23T20:32:26Z

Electrical/Software Results

← Older revision		Revision as of 20:32, 23 March 2014
Line 197:		Line 197:
	The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.		The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.

	A video of the ~~final~~ system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system].		A video of the system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system]. Though it is not shown in the video, it is possible to run the system with one line of input in the command line.

	=== Image Results ===		=== Image Results ===

imported>Projects221: /* Electrical/Software Results */

2014-03-23T20:30:48Z

Electrical/Software Results

← Older revision		Revision as of 20:30, 23 March 2014
Line 197:		Line 197:
	The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.		The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.

	[https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system].		A video of the final system is here: [https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system].

	=== Image Results ===		=== Image Results ===

imported>Projects221: /* Electrical/Software Results */

2014-03-23T20:30:24Z

Electrical/Software Results

← Older revision		Revision as of 20:30, 23 March 2014
Line 192:		Line 192:
	=== Electrical/Software Results ===		=== Electrical/Software Results ===

	The final circuit, with the filter wheel and camera connected via breadboard to the Arduino, is shown below.		The final circuit, with the filter wheel and camera connected via breadboard to the Arduino, is shown below.

	[[File: Final_circuit.jpg\|thumb\|center\|border\|600px]]		[[File: Final_circuit.jpg\|thumb\|center\|border\|600px]]

	The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.		The software has very simple functionality, which satisfies the goal of one-click implementation. The user runs an executable file on the PC, which triggers the camera to initialize, which in turn sends an initialization trigger to the Arduino, pre-loaded with the necessary code for communicating between the filter wheel and camera. Once the Arduino triggers the filter wheel to go to its first position, the image acquisition sequence progresses, saving the files on the PC, until all 8 images have been taken. The Arduino is now ready for the next initialization trigger from the camera, which will occur next time the executable file is run.

			[https://www.youtube.com/watch?v=enjrwm_NGAE Demonstration of automated system].

	=== Image Results ===		=== Image Results ===

imported>Projects221: /* Issues with previous set-up */

2014-03-23T20:25:17Z

Issues with previous set-up

← Older revision		Revision as of 20:25, 23 March 2014
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	==== Issues with previous set-up ====		==== Issues with previous set-up ====
	At the project outset, the components were neither physically nor electronically connected. The filter wheel housing wasn't able to connect the camera or lens, because only one side of the housing had c-mount connectivity. The stock adaptor was too thick and would have increased the lens - sensor distance which would have reduced the focal range of the lens. Furthermore, the filter wheel and camera were disconnected and had manual functionality, making it tedious to acquire a series of images.		At the project outset, the components were neither physically nor electronically connected. The filter wheel housing wasn't able to connect the camera or lens, because only one side of the housing had c-mount connectivity. The stock adaptor was too thick and would have increased the lens - sensor distance which would have reduced the focal range of the lens. Furthermore, the filter wheel and camera were disconnected and had manual functionality, making it tedious to acquire a series of images.

	~~<wiki:video url="https://www.youtube.com/watch?v=XadlDJRKlA8&feature=youtu.be"/>~~

	[https://www.youtube.com/watch?v=XadlDJRKlA8&feature=youtu.be Video of using filter wheel manually]		[https://www.youtube.com/watch?v=XadlDJRKlA8&feature=youtu.be Video of using filter wheel manually]