منابع مشابه
Rule-based semantic summarization of instructional videos
We present a new content-based approach to summarize instructional videos. We first redefine “scene” in instructional videos. Focusing on one dominant scene type, that of handwritten lecture notes, we define semantic content as “ink pixels”, and present a low-level retrieval technique to extract this content from each frame with consideration of various occlusion and illumination effects. “Key ...
متن کاملEffect of Instructional Videos on Postoperative Respiratory Function in Patients Undergoing Off-Pump Open Heart Surgery
Background: Respiratory function in patients undergoing open heart surgery is disrupted after surgery. Patient education on managing complications can reduce occurrence or severity of them. A variety of educational tools has been introduced, but there are controversies about the most appropriate tools. Aim: Determine the effect of instructional videos on respiratory function of the patients af...
متن کاملSegmentation, Indexing, and Visualization of Extended Instructional Videos
We present a new method for segmenting, and a new user interface for indexing and visualizing, the semantic content of extended instructional videos. Given a series of key frames from the video, we generate a condensed view of the data by clustering frames according to media type and visual similarities. Using various visual filters, key frames are first assigned a media type (board, class, com...
متن کاملTowards Automatic Learning of Procedures from Web Instructional Videos
We propose a temporal segmentation and procedure learning model for long untrimmed and unconstrained videos, e.g., videos from YouTube. The proposed model segments a video into segments that constitute a procedure and learns the underlying temporal dependency among the procedure segments. The output procedure segments can be applied for other tasks, such as video description generation or activ...
متن کاملPortrait of an Indexer - Computing Pointers Into Instructional Videos
We examine algorithms for creating indexes into ordered series of instructional lecture video transcripts. The goal is for students and industry practitioners to use the indexes towards review or reference. Lecture videos differ from oftenexamined document collections such as newspaper articles in that the transcript ordering generally reflects pedagogical intent. One challenge is therefore to ...
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ژورنال
عنوان ژورنال: World Journal on Educational Technology: Current Issues
سال: 2018
ISSN: 1309-0348
DOI: 10.18844/wjet.v10i2.3418