Image registration and mosaicing of acoustic camera images

被引:0
作者
Kim, K [1 ]
Intrator, N [1 ]
Neretti, N [1 ]
机构
[1] Brown Univ, Inst Brain & Neural Syst, Providence, RI 02912 USA
来源
PROCEEDINGS OF THE FOURTH IASTED INTERNATIONAL CONFERENCE ON VISUALIZATION, IMAGING, AND IMAGE PROCESSING | 2004年
关键词
image registration; image mosaicing; acoustic camera; DIDSON;
D O I
暂无
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper presents an algorithm for image registration and mosaicing on underwater sonar image sequences characterized by a high noise level, inhomogeneous illumination and low frame rate. Imaging geometry of acoustic cameras is significantly different from that of pinhole cameras. For a planar surface viewed through a pinhole camera undergoing translational and rotational motion, registration can be obtained via a projective trans formation. We show that, under the same condition, an affine transformation is a good approximation for an acoustic camera. We further propose a novel image fusion method, which maximizes the signal-to-noise ratio of the mosaic image. The full procedure includes illumination correction, feature based transformation estimation, and image fusion for mosaicing.
引用
收藏
页码:713 / 718
页数:6
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