• Concept
• Motivation
• Competition
• Tech Specs
• Requirements
• Architecture
• Use Cases
• System States
• Risks
• Error Handling
• Implementation
• Test Cases
• Evaluation
• Lessons
• Fun Stuff
• References
• 18-549 Home

MEMBERS

• Kelsey Ho (kyh at andrew dot cmu dot edu)
• Sarah Hsieh (syh at andrew dot cmu dot edu)
• Andrew Lam (alam at andrew dot cmu dot edu)
• Ryan Walsh (rwalsh at andrew dot cmu dot edu)

PROJECT CONCEPT

This project will provide students and teachers with an easily searchable record of each lecture. The "smart" classroom will integrate speech-to-text software, real-time mobile identification, and video feeds for a complete multimedia transcription of every lecture.

MOTIVATION

Some classes today are recorded, however a camera man needs to be physically present and students need to search through the entire lecture in order to find clarification on specific topics. Our system will automatically record the lecture to provide students with a clear video reord with subtitles of both the professor and the projected material.

COMPETITIVE ANALYSIS

• Smart Classroom:
  

  Equips faculty with audio and visual tools such as overhead displays, video conferencing, internet and more. Our project on the other hand will keep a record of the lecture with annotated sections

  
  
  
• Tele-Education:
  

  This Tele-Education product integrates voice-recognition, computer-vision, and other technologies to provide a tele-education experience similar to a real classroom experience. However, our project allows a searchable record of the lecture while providing features similar to the Tele-Education.

  
  
  
• mimio:
  

  There are a number of products from mimio that are supposed to bring teaching into the 21st century. They allow teachers to save what they've written on the whiteboard. Our project, however, lets students have a record of what was on the whiteboad along with the context of the lecture.

  
  
  
• Panopto
  

  Panopto provides a system that records lectures and incorporates slides as well. This is very similar to our project idea, however we will also provide a textual transcript of the lecture that students can search though. Our project will also allow further personalization from the professor with features that allow easy black-out and bookmarking.

  
  
  

  TECHNICAL SPECIFICATIONS

  Hardware:

  Logitech USB Desktop Microphone Frequency response: 100 Hz - 16 kHz Input sensitivity: -67 dBV/ubar, -47 dBV/Pa +/-4 dB 8-foot shielded cord with USB 1.1 connector 4 * $30 = $120
  	Logitech QuickCam Orbit AF Carl Zeiss optics Autofocus system Ultra-high resolution 2-megapixel sensor with RightLight 2 Technology Color depth: 24-bit true color Video capture: Up to 1600 by 1200 pixels (HD quality) Frame rate: Up to 30 frames per second Still-image capture, 8 megapixels (with software enhancement) Build-in microphone with RightSound Technology $130
  Belkin USB 2.0 Plus Hub (4 Port) Supports up to 4 USB devices Features 2 top-load USB ports $30
  	KWorld Xpert DVD Maker USB 2.0 USB video sncoder Video input: AV (composite), S-Video Audio output: 3.5mm audio cable to sound card line-in Audio input: RCA to 3.5mm audio in $50

  
  
  Software:
  • Speech-to-text software
  
  Protocols:
  • USB 2.0

REQUIREMENTS

• Converts video feeds from the classroom lecterns to digital media
• Embed output from speech-to-text software into the video recordings
• Controller accurately allows the professor to bookmark locations and mute the recording.

• Correctly identifies students as they enter the classroom within 5 minutes
• Student identification should not be easily spoofed
• Record clear speech from lecture that will result in 90% accuracy
• Controller should have at least 10 hours of battery life

ARCHITECTURE

To be completed.

USE CASES (INTERACTION DIAGRAMS)

To be completed.

SYSTEM STATES & TRANSITIONS

to be completed.

RISKS & MITIGATION STRATEGIES

To be completed.

ERROR HANDLING

To be completed.

IMPLEMENTATION DETAILS

To be completed.

TEST CASES

To be completed.

EXPERIMENTAL EVALUATION

To be completed.

LESSONS LEARNED

To be completed.

FUN STUFF

To be completed.

REFERENCES

• Project Proposal and Requirements, Team Project Presentation, February 1, 2008
• Design & Architecture, Team Project Presentation, February 15, 2008
• Mid-semester Project Status, Team Project Presentation, Date TBD
• Test Plan & Experimental Validation Team Project Presentation, March 28, 2008
• Final Project Presentation, Team Project Presentation, Date TBD
• Project Poster, Team Project Presentation, Date TBD
• Project Presentation, May 2, 2008