Motion Analysis
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People:
- Adrian Evans
- Simon Tredwell (PhD awarded
July 2004)
Background:
By identifying corresponding objects or patterns in successive frames from
image sequences, estimates of the inter-reframe motion to be made. Template
matching is commonly used in video coding but has difficulty coping with the
non-rigid motion, low contrast and high noise found in remotely sensed images
of objects such as clouds and glaciers. However, when combined with a
smoothness criterion such as that provided by relaxation labelling, the
candidates vectors from template matching can be used to produce a locally
consistent field. Filters for motion field analysis and motion estimation for
video coding are other area of work.
Projects:
- Tracking deformable objects in remotely sensed
images.
- Motion field filtering and analysis.
- Motion field estimation and coding for video
compression (PhD student Simon Tredwell).
Publications:
- A.N. Evans, Cloud Motion Analysis Using
Multichannel Correlation-Relaxation Labeling, IEEE Geoscience and Remote Sensing Letters, 3 (3), pp.
392-396, July 2006. pdf
- A. N. Evans, Vector Area Morphology for Motion
Field Smoothing and Interpretation, IEE
Proceedings-Vision, Image and Signal Processing, 150(4), pp. 219-226, August 2003. pdf
- S. Tredwell and A.N. Evans,
Improved Motion Description Coding Using The List Mapping Motion
Description (LMMD), in Proc. IEEE International Conference on Image
Processing, Rochester, NY, USA, Volume I, pp. 657-660, September 2002.
pdf
- S. Tredwell and A.N. Evans,
A Sequential Vector Selection
Algorithm for Controllable Bandwidth Motion Description Encoding, in Proc.
IEEE International Symposium on
Intelligent Multimedia, Video & Speech Processing, Hong Kong, pp. 209-212,
May 2001. pdf
- A.N. Evans, On the Use of Ordinal Measures for
Cloud Tracking, International
Journal of Remote Sensing, 21(9) pp. 1939-1944, June 2000.
- A.N. Evans, Full Field Glacier Surface Motion
Computation from Digital Image Sequences, IEEE Transactions on Geoscience and Remote Sensing, 38(2) pp.
1064-1072, Part 2, March 2000. pdf
- A.N. Evans, Y Guo and D.M.
Monro, Limited Motion Estimation
Scheme for Multimedia Video Compression, in Proc. IEEE 6th International Conference on Electronics,
Circuits and Systems, Paphos, Cyprus, Volume 1, pp. 453-456, September
1999. pdf