Fast Electronic Digital Image Stabilization for Off-Road Navigation
1996; Academic Press; Volume: 2; Issue: 5 Linguagem: Inglês
10.1006/rtim.1996.0030
ISSN1096-116X
AutoresCarlos H. Morimoto, Rama Chellappa,
Tópico(s)Optical Systems and Laser Technology
ResumoImage stabilization can be used as front-end system for many tasks that require dynamic image analysis, such as navigation and tracking of independently moving objects from a moving platform. We present a fast and robust electronic digital image stabilization system that can handle large image displacements based on a two-dimensional feature-based multi-resolution motion estimation technique. The method tracks a small set of features and estimates the movement of the camera between consecutive frames. Stabilization is achieved by combining all motion from a reference frame and warping the current frame back to the reference. The system has been implemented on parallel pipeline image processing hardware (a Datacube MaxVideo 200) connected to a SUN SPARCstation 20/612 via a VME bus adaptor. Experimental results using video sequences taken from a camera mounted on a vehicle moving on rough terrain show the robustness of the system while running at approximately 20 frames/s.
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