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On each finger sleeve, we fit a push button for mouse click functionality.
The right pointer finger sleeve is also fitted with a piece of red tape to be picked tracked by the webcam.
Each finger sleeve is fixed with a button and one of these sleeves is fitted with red tape for color tracking.
To connect the finger sleeve push buttons with the microcontroller, we use an active-low Pin B.1, B.2, and B.3 on the microcontroller.
Objects with lower coordinate values are given higher priority and, as a result, the webcam mouse would prioritize this object over the red tape object on the finger sleeve.
One flaw that we found in the usability of our red-object-color-tracking webcam mouse arises when additional red objects other than the red tape on the finger sleeve are present in the field of view of the webcam.
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Webcam, finger sleeves, and microcontroller.
The three finger sleeves we use are just typical black knitted elastic finger sleeves.
Operation of the device begins with the finger sleeves and the webcam.
A user wearing the finger sleeves moves the finger with the red tape in the field of the webcam.
The webcam tracks red-colored object movement of the finger sleeves and communicates centroid coordinates to the microcontroller via Matlab.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com