Deep Learning-Based Automated Classroom Slide Extraction
Journal Title: International Journal of Innovations in Science and Technology - Year 2024, Vol 6, Issue 2
Abstract
Automated extraction of valuable content from real-time classroom lectures holds significant potential for enhancing educational accessibility and efficiency. However, capturing the spontaneous insights of live lectures often proves challenging due to rapid visual transitions, instructor movement, and diverse learning styles. This paper presents a novel approach that combines the strengths of YOLO and Scale-Invariant Feature Transform (SIFT) techniques to automatically extract slides from live classroom lectures. YOLO, a real-time object detection algorithm, is employed to identify board area, teacher, and other objects within the video stream. While SIFT, a robust feature-based method, was used to accurately merge key points from multiple pictures of the same region. The proposed method involves a multi-stage process: first, YOLO detects the potential place of the teacher, which occluded the board within the video frames. Subsequently, the teacher was removed from the image. The board was divided into multiple segments, to remove and merge redundant content Scale-invariant feature Transform (SIFT) was employed. Experimental results on a diverse dataset of classroom lecture videos demonstrated the effectiveness of the proposed method in extracting slides across different environments, lecture styles, and recording conditions. The potential benefits include improved note-taking, reduced manual effort in content curation, and enhanced accessibility to lecture materials. The presented approach contributes to the broader goal of leveraging computer vision and machine learning techniques to transform traditional classroom settings into modern, interactive, and adaptive learning environments.
Authors and Affiliations
Zeeshan Azhar, Hassan Nazeer Chaudhry, Farzana Kulsoom, Sanam Narejo
Keywords
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