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# System prepended metadata

title: IACV Prüfungsprotokolle

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# IACV Prüfungsprotokolle

## Status
- [ ] HS2018 exams
- [ ] HS2017 exams
- [ ] HS2016 exams
- [ ] < HS2015 exams

## Open Topics

### What does $Z_0$ in Depth-of-field mean?
![](https://i.imgur.com/nmrbJsO.png)


## Questions

## Stereo Vision
### What is epipolar geometry?

#### What is it used for?

#### What are the limitations?

#### What is the F matrix? How is it computed? How many datapoints do you need?

#### How can one of the cameras move, s.t. the epipole doesn't change its position in the images of the cameras?

## Object Recognition

### Hybrid Models
#### Advantages of hybrid methods over model-based and appearance-based

#### How can we solve computational complexity of Hybrid Models?
Visual words & vocabulary trees

### Tracking
#### Object class recognition tracking: offline and online steps

#### Setting: Crowded subway. What are the advantages of tracking all the poeple with object class recognition over Lukas-Kanade template tracker?
Template tracker subject to intra-class variations -> would need template for each different person.

#### Object recognition for multiple objects is too slow: what feature-based method would you use for a subway with only a few people
Background modeling, run sliding window only on the blobs and not the entire image