I'm trying to develop a real-time application that, from the sequence of chalkboard images captured by a webcam, recognizes the lines being draw on it.
It must be able of recognize the lines from the chalkboard background, filter the presence in the image of the teacher, and translate these lines to some representation, something as a list of basic events like "start of line at xxx,xxx", "continue line at xxx,xxx", ...
After several days looking for references and bibliography, none is found. The most similar are the character recognition applications, in particular when they have a stroke recognition stage.
Any hint ?
Input will be a sequence as this one, this one or this one (just without the presence of the students). I've expect the teacher not hidding his hand. We could imagine a start with an empty chalkboard.
Note: I am looking for more than an answer which says only something similar to "you can use a deep learning training it with two classes", without details or references.