CGL Meeting Agenda
Wednesday, April 19, 1995
- Location:
- DC 1304
- Time:
- 1:30 PM
- Chair:
- Riston Tapp
1. Adoption of the agenda - additions/deletions thereto.
2. Coffee Hour and Next Meeting:
- Coffee hour this week:
- ???
- Coffee hour next week:
- ???
- Next Meeting
-
- Time:
- April 26, 1995
- Location:
- CGL
- Chair:
- Greg Veres
- Tech Presentation:
- Glenn Paulley
- Forthcoming: (list next 4 and trades)
-
- Chairs:
- Bill Wallace
- Julie Waterhouse
- Yanchun Zhao
- Richard Bartels
- Tech presentations:
- Randall Reid
- Haroon Sheikh
- Riston Tapp
- Greg Veres
3. Technical Presentation:
- Presenter:
- Andrew Park
- Title:
- Computer Vision for Vehicle Tracking in Teleoperation
-
- Abstract:
-
My research involves determining the effectiveness of various
graphical tools overlayed upon live video feedback for mining
teleoperation tasks. In order to register the video feedback
with meaningful and accurate graphical overlays, it is necessary
to know at all times, the position and orientation of the
teleoperated vehicle, particularly with respect to other objects
within the remote environment.
-
I've turned to computer vision as a potential solution. In my
tech presentation I'll be providing a crash-course in computer
vision (with particular emphasis on those techniques/alogorithms
which pertain to my tracking problem). Specifically, I'll breifly
touch upon edge and line detectors, spatial vs. frequency methods of
feature detection, segmentation, and pattern recognition classifiers.
I'll use this as a framework to describe the vision system which I
hope to implement in my own work.
-
4. General Discussion Items:
- Anne has tentatively booked the lab meetings next term for 1:30 - 2:30 p.m.
- Next week, the lab meeting will be held in the lab.
5. Action List (remember to update AL_active)
6. Directors Meeting:
- There was no directors meeting this week.
7. Seminar(s):
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
MASTER'S THESIS PRESENTATION
-Friday, April 21,1995
Robert C. Good, graduate student, Dept. Comp. Sci.,
Univ. Waterloo, will "The Design and Implementation of
a Robust Storage System Architecture".
TIME: 2:30-3:30 p.m.
ROOM: DC 1331
ABSTRACT
Error-correcting codes allow either incorrect data to
be corrected or missing data to be rebuilt. They are
frequently used with communications channels to recover
data lost through line noise and thus provide a `noise
free' bit pipe. Data can also be lost through hardware
failure; for instance a disk crash. In case of
hardware failure, we want a storage system that has the
robustness and tunability of error-correcting codes in
order to provide recovery of the lost data. This is
especially so when dealing with systems involving a
large number of disks as, when taken as a group, they
are more error prone than single disks but are a vary
practical way of building large data stores.
At present, the most common way to provide data
recovery is straight duplication (mirroring) or a code
able to detect single failures within a tightly coupled
array of disks. A new prototype system has been
designed and implemented which uses linear error-
correcting codes to provide data storage over a loosely
coupled distributed storage system. The fault-
tolerance of this system can be varied by choosing the
amount of redundant information stored.
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
MASTER'S THESIS PRESENTATION
-Tuesday, April 25, 1995
Soo Ooi, graduate student, Dept. Comp. Sci., Univ.
Waterloo, will speak on "An API for Distributed
Multimedia Applications".
TIME: 11:00-12:00 noon
ROOM: DC 1304
ABSTRACT
This thesis focuses on the design and implementation of
MP-API (Media Presentation Application Programming
Interface), a high level API for distributed multimedia
applications. MP-API provides facilities for
searching, retrieval, and presentation of multimedia
documents. It also provides a means for presentation
quality of service negotiation. A multimedia
information model, a general user access model, a set
of basic API calls, and a C++ object library have been
defined for MP-API.
MP-API is used as the primary access interface of a
multimedia news on demand prototype. This prototype is
an integration of: a multimedia database, a distributed
continuous media file system, a quality of service
negotiation component, and a scalable MPEG-2 video
decoder. A multimedia news browser, called MNews, has
also been implemented. MNews is a sample user
application of MP-API. It provides a proof-of-concept
demonstration regarding the use of MP-API.
A number of design and implementation issues of the
news on demand prototype are also identified in this
thesis. These issues include: the shortcomings of the
current multimedia database design, the integration
problems of the continuous media file system, and the
appropriateness of the user level quality of service
parameters used.
8. Lab Cleanup (till 2:30pm or 5 minutes, whichever is longer)