Do it yourself bio-robotics: Difference between revisions
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A reversible modification for a webcam which lets you take pictures of things far less than 1mm wide. | A reversible modification for a webcam which lets you take pictures of things far less than 1mm wide. | ||
To make a microscope webcam you need the following: | To make a microscope webcam you need the following: | ||
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'''Step 1''' | '''Step 1''' | ||
unscrew the lens of the webcam | unscrew the lens of the webcam | ||
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'''Step 2''' | '''Step 2''' | ||
put the lens backwards on the webcam | put the lens backwards on the webcam | ||
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'''step 3''' | '''step 3''' | ||
to focus, just move the webcam towards or away from the object | to focus, just move the webcam towards or away from the object | ||
Revision as of 23:17, 14 December 2015
A reversible modification for a webcam which lets you take pictures of things far less than 1mm wide.
To make a microscope webcam you need the following:
- Standard webcam with an adjustable focus-lenss
- Computer
Step 1 unscrew the lens of the webcam
Step 2 put the lens backwards on the webcam
step 3 to focus, just move the webcam towards or away from the object
Movie bio-robotics
Video created with a DIY microscope by Jona Andersen, Juriaan Boerman and Mark-Jan Tellingen during the workshop 'Bio-Robotics of Arjan Scherpenisse.
Recognizing a plant in a pinch
When asked to assist how to quickly recognize a plant with a webcam I remembered an Apple WWDC presentation called "Find my iCone" an app that tracked an orange construction pylon using it's color.
I already had some web/Javascript code to do some chromakey (greenscreen) swapping, so I just re-purposed it. However, tracking the correct color of say "purple flowers" needed to be a little less fined grained then #ef0114 (for example, I have no idea what "color" that is by looking at it's hex values), so I grabbed a JS library to print colors as words.
Here's the code:
<!DOCTYPE html>
<h1>I don't see anything.