1. Computer Vision Readings
Discussion and Activity
Susie Wise
11/11/2004

2. Computer Vision for Interactive Computer Graphics
From multimodal to looking specifically at methods for using VISION
Vision can be a powerful interface device because of its potential for sensing
Body position
Head orientation
Direction of gaze
Pointing commands
Gesture

3. Computer Vision for Interactive Computer Graphics (2)
They make the connection to interactive graphics as arena in which to work
Successful because
limited context (limits recognition req’d)
human is in the loop (can make adjustments because they are getting graphical feedback)

4. Computer Vision for Interactive Computer Graphics (3)
Areas of exploration 
Large object tracking
Shape recognition
Motion analysis
Small object tracking

5. A Design Tool for Camera-based Interaction
Recognizing that image classifiers are hard to design and develop, they have a made tool
Goal for ordinary interface designers to work with camera-based interaction
Introduce “crayons” which allow UI designer to generate training data quickly by “painting” classification over sample images

6. Design Principles
Use context to limit the range of visual interpretations
Take advantage of graphical feedback (to make adjustments, constrain input)
Simplify image classifier

7. Activity Divide into small groups
Pick an arena where vision-tracking could be fruitful (based on one in the articles or come up with a realm of your own)
Brainstorm application scenarios
As with Milestone #1 ideation, go for breadth
Report back to full group
Range of ideas
Consensus on best to pursue