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Massachusetts Institute of Technology

Pentimento : non-sequential authoring of handwritten lectures

Abstract

dc:description.abstract

Pentimento is software developed under the supervision of Fredo Durand in the Computer Graphics Group at CSAIL that focuses on dramatically simplifying the creation of online educational video lectures such as those of Khan Academy. In these videos, the lecture style is that the educator draws on a virtual whiteboard as he/she speaks. Currently, the type of software that the educator uses is very rudimentary in its functionality and only allows for basic functionality such as screen and voice recording. A downside of this approach is that the educator must get it right on the first approach, as there is no ability to simply edit the content taken during a screen capture after the initial recording without using unnecessarily complex video editing software. Even with video editing software, the user is not able to access the original drawing content used to create video. The overall goal of this project is to develop lecture recording software that uses a vector based representation to keep track of the user's sketching, which will allow the user to easily editing the original drawing content retroactively. The goal for my contribution to this project is to implement components for a web-based version of Pentimento. This will allow the application to reach a broader range of users. The goal is to have an HTML5 and Javascript based application that can run on many of popular the web browsers in use today. One of my main focuses in this project is to work on the audio recording and editing component. This includes the working on the user interface component and integrating it with the rest of the parts in the software.

Degree

thesis:*
Department dc:contributor.department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.
Grantor dc:publisher
Massachusetts Institute of Technology
Year dc:date.issued
2015

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Wang, Jonathan, M. Eng. Massachusetts Institute of Technology
Advisor dc:contributor.advisor
  • Fredo Durand.

Subjects

dc:subject × 1

Rights

dc:rights
Statement dc:rights
  • M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
Language dc:language.iso
eng

Identifiers

dc:identifier.*
Handle dc:identifier.uri
http://hdl.handle.net/1721.1/100619
OAI identifier oai:identifier
oai:dspace.mit.edu:1721.1/100619

Chain of custody

source
Harvested from
MIT
Base URL
dspace.mit.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Wang, Jonathan, M. Eng. Massachusetts Institute of Technology. Pentimento : non-sequential authoring of handwritten lectures. Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100619