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B.06 Research and Teaching in Graphics Christoph M. Hoffmann, PI Research Team: John Turek, Vet Richard Borgens, Vet Paul Robinson, Biol Elisha Sacks, CS, Viz Ctr C. Bajaj, CS, Texas J. Peters, CS, Florida The Situation in early 1997 Predominantly Sun and SGI workstations

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b 06 research and teaching in graphics

B.06Research and Teaching in Graphics

Christoph M. Hoffmann, PI

Research Team: John Turek, Vet Richard Borgens, Vet Paul Robinson, Biol Elisha Sacks, CS, Viz Ctr C. Bajaj, CS, Texas J. Peters, CS, Florida

the situation in early 1997
The Situation in early 1997
  • Predominantly Sun and SGI workstations
  • Graphics synonymous with SGI
  • PCs perceived as low-end word processor and spread sheet tools
  • Our colleagues swore by Unix
  • Intel stock in $15 - $20 range
teaching lab cs 175
Teaching Lab (CS 175)

(Hoffmann)

  • 1997: Eight graphics PC, a server
  • Hosting CS 435, Undergraduate Graphics
    • 1997 – using J++
    • 1998 – and beyond: using OpenGL and Glut
summary pc graphics
Summary: PC Graphics
  • In 1997, a radical suggestion
  • Today, an accepted reality:
    • Students increasingly on PCs
    • Work also on their own machines
    • Competent, well-priced hardware
research
Research
  • Mechanism Analysis (Sacks)
  • Situation Awareness (Hoffmann)
  • Extra-Cellular Matrix (Robinson)
  • Cristal Lab (Turek)
  • Other projects
    • Image analysis and model extraction
    • Animating algorithms for teaching
    • Parametric design, and more
mechanism analysis sacks
Mechanism Analysis (Sacks)
  • Configuration space analysis of mechanisms with intermittent contact (C-space)
  • Highly visual
  • Identifies why a design works or doesn’t
  • Applications:
    • MEMS
    • Automotive
    • Consumer goods
geneva mechanism
Geneva Mechanism

Intermittent motion:

C-space diagrams show why bottom designs fail

mems applications
MEMS Applications

Weapons assurance device:

C-space eliminates build-and-bust approach used before

automotive applications
Automotive Applications

Automatic transmission analyzed for Ford

consumer goods application
Consumer Goods Application

Film advancement mechanism analyzed for Fuji

situation awareness hoffmann
Situation Awareness (Hoffmann)
  • Visualization and motion of large numbers of platforms
  • Geometric analysis to extract mission critical information
  • Pre-attentive information presentation to military decision makers
extracellular matrix robinson
Extracellular Matrix (Robinson)
  • Collagen matrix that hosts the cells
  • Special tissue synthesis
  • Confocal imagery to analyze tissue
slide17

Lab

John TurekChandrajit Bajaj, Richard Borgens

Core Laboratory for Image Analysis & Multidimensional Applications: Division of the Purdue Center for Image Analysis & Data Visualization

Basic Medical Sciences

School of Veterinary Medicine

research18
Research
  • Implementation of a multiresolution client-server environment for fast navigation and search of high-resolution image databases (JJ Turek, CA Bouman-Electrical and Computer Engineering)
  • 3D visualization and quantification of the effects of IGF-1 on the morphology of chick embryo leg muscles. (J McCleerey; IU School of Medicine, JJ Turek, P Mitchell, K Hannon; Basic Medical Sciences)
  • Analysis of hair texture as a corollary to health using scanning electron microscopy and wavelet decomposition analysis. (JJ Turek)
slide19

Predictive pre-fetching

Increase/decrease

region in the wavelet

resolution

domain

Buffered

client data

X-Y translation

within image

database

Server

Viewed image

image

on client

data

Model of dynamic navigation and browsing of high-resolution image database via pre fetching and warping-decompression

slide20

95%

Visualization of

metadata

attributes using

Bayesian

probability estimates to locate

desired image features

5%

Fast

metadata

visualization

performed prior to full

resolution search and

Example

feature extraction

Region

Metadata

Full resolution

search

extraction

Sample

region

Metadata visualization as an aid to searching a high-resolution image database on server

found in

search

in conclusion
In Conclusion
  • Equipment put to good use
  • Important support for our teaching and research
  • Would like to ask you again…