| Meno: | Ondrej
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| Priezvisko: | Jariabka
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| Názov: | A method for objects extraction from recorded lectures.
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| Vedúci: | RNDr. Zuzana Černeková, PhD.
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| Rok: | 2016
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| Kµúčové slová: | whiteboard, blackboards, lecture, generation of images, slides, e-learning, video presentation perceptual hashes, board extraction, key frame generation, slide generation
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| Abstrakt: | With raising amount of e-learning materials such as lecture videos or on-line
video courses, we decided to develop an application, which can help students
or content creators in their effort to prepare study materials. Main goal of
our application is to create slides from given video, depicting a black or white
board without any occluding objects such as lecturer standing in front of this board.
Slides will contain valid information from key frames of the given lecture video.
Based on the assumption, that the board is static in the video, this is done by extracting
the board from video frames, which is then segmented into equally sized
rectangular cells. These cells are stored and the change of information inside them is tracked.
Afterwards, the final image is created from saved cells when all cells are sufficiently stable.
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