Research on methods of motion estimation and compensation in electronic image stabilization technique

Ping Zhong

doi:10.1117/12.572384

8 February 2005 Research on methods of motion estimation and compensation in electronic image stabilization technique

Ping Zhong

Proceedings Volume 5637, Electronic Imaging and Multimedia Technology IV; (2005) https://doi.org/10.1117/12.572384
Event: Photonics Asia, 2004, Beijing, China

Abstract

The problem of stabilization of the image sequence from a camera mounted on a moving platform such as airborne reconnaissance is considerably more complex. Motion composed of not only translation but also rotation is a very common. For the long focus, long-range imaging system, to estimate and compensate rotation movement between the frames is very important. Through analyzing the effect of rotation on the quality of video sequence, the paper proposes an effective algorithm applied to the rotation and translation movement estimation. This algorithm is composed of three parts: Firstly, the image is divided to many regions and make sure that every pixel motion in each region is uniform; Secondly, the translations vector of each region are obtained by representative point matching technique. Finally the globe motion vectors (include translation and rotation) between the reference frame and the current frames is obtained by solution of a set of linear equations which come form a given affine motion model. Compensation method of motion among the frames is also an important factor to affect the stability of image sequence. If the image sequence is compensated directly with the acquired movement vectors, it will feel the jumping among frames. In the paper, the parameters to compensate for the current image have be determined by average value filtering and been applied to given motion model to stabilize the image stream. It can realize smoothly processing to assure the image sequences stabilization.

Citation Download Citation

Ping Zhong "Research on methods of motion estimation and compensation in electronic image stabilization technique", Proc. SPIE 5637, Electronic Imaging and Multimedia Technology IV, (8 February 2005); https://doi.org/10.1117/12.572384

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