G2-Update2
The Effect
Football player tracking with CG indicators
The Input
- Football game footage from side or goalpost view
- User's indication of the players
The Output
Original footage enhanced with CG indicators of tracked players
The Layers
- The raw football game footage
- CG indicators
The Pipeline
Progress
Research
Coding
- Used openCV to open an avi and iterate through the IplImage frames and playback in a openCV window
- Explored tracking demos that use the CamShift and MeanShift algorithms (Abandoned)
- Started writing code that uses cvGoodFeaturesToTrack and cvCalcOpticalFlow
- Optical flow for image sequences (since the field does not flow, this gives us additional information as to which areas contain players)
- Began development on effective tracking of multiple objects
- Significantly improved edge detection by filtering (might be used for feature matching – thanks Florian)
- Hough lines for every frame
- Homography from first frame to model
- Segmentation on following frame
Images
First Frame
Model
Frame Warped by Homography
Overlay
Stadium Segmentation
Videos
Hough lines and Optical flow
Modified CamShift (Abandoned)
Timeline
04/03 – Project Update 2 (Segmentation, Hough lines, Optical Flow)
04/10 – Project Update 3 (Automatic Homography and Segmentation Updates, Player Detection)
04/12 – FP_Preview Showing (Player Tracking, Derectification)
04/17 – Project Update 4 (CG Elements)
04/26 – FP_Final Showing (Touchups)
Links to this Page
- DVFX 2007 Groups last edited on 2 May 2007 at 12:51 am by coppola-win.cc.gatech.edu
- G2-Final Report last edited on 2 May 2007 at 5:18 am by coppola-win.cc.gatech.edu