All entries for Sunday 19 November 2006

November 19, 2006

Check yourself before you wreck yourself

...shotgun bullets are bad for your health

Here is the first draft of the presentation… Any changes we make, i’m happy to go over in the meeting tomoro… but i’ll be cranky cos i’m gonna have to wake up before 8 :(


I’ve rendered two video’s demonstrating the stages of the system. Each video is split into 4 quadrants, showing:
  1. original video
  2. the (median dilated) blob mask
  3. the full contour image
  4. the model

They’re both avi files compressed with DivX, and should be fine for presentation.

Download link

Up todate code that works pretty well

The code: Download

So far the code displays pictures that have been filtered by the blob and then the contourProcessor applied. WIth the model overlayed in red, which is what the model percieves to be the person.(Hoi correct if im wrong)

currently all it does it display this and does not use it in a useful way, some means of calculating what direction the person is heading in needs to be created. To give the robot as well as means of grabbing the images into CImg format.

but other than that we are getting there.

Also talking to Matt in CS, said that the lists in cpp are very inefficient and it might be worth converting them back to vectors if performance is too slow.



Hi I’ve split up all the slides into the follow descriptions. Could everyone who wants to talk in the presentation please let me know and also let me know if you’d want to talk about anything specific listed below.

Introduction and project overview

Visual Person Tracking Algorithms
- overview on types of algorithms etc.

Blob overview

Histogram overview

Contour overview + Canny Operator

Comparison table – advantages/disadvantages

Our step-by-step implementation (pictorial step by step + explanation)
- Class Hierarchy and Flow Control Diagram

[1] gets image from webcam
- Normal image
- [2] sends image for processing
- choose processing type

[2a] blob-based mask
- blob picture
- when to use this feature

[2b] contour image
- contour picture
- when this feature is used

[2c] histogram-based mask
- histogram picture
- when to use this feature

[3] Contour processor (compares current and previous contour images)
-contour picture of two images in a film
- advantages of masking
- [4] Robot Moves

- Video of program running

Video of moving Robot


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