Basic Visual Tracker

Intelligent Interactive Engine

Basic Visual Tracking Framework (Color)

Demo Video: Ball Tracking

Peak climbing: MeanShift

Related Works
²Varieties of Feature Extraction/Evaluation

³Feature evaluation: template matching

³Background subtraction

³Reference color model: YCrCb, RGB

²Varieties of Peak Search/Climbing

³Gravity center

³Max-Likelihood

³MeanShift

Summary
²Advantages:

³Simple & Fast à low-cost

³Each pixel (RGBàHSV, backprojection) is processed independently à good for parallel processing

²Drawbacks:

³Hard to combine with more object features

®EX: edge information (object shape, contour)

³Hard to cope with higher-dimension target state

®EX: object orientation (rotation angle)

³Hard to deal with locking at local maximum

®No mechanism to search for other better regions