Research on Electronic Image Stabilization Technique for Vehicle-borne Low-light-level Telescope

doi:10.3969/j.issn.1000-1093.2012.09.004

Abstract

Abstract: Aimed at the stabilization problem of low-light-level image in bottom-reflecting fire control system, a novel real-time high-precision electronic image stabilization system based on gyroscope and block matching algorithm was proposed. Its overall structure was designed; the transformation equations between the carrier movement and image movement were derived on the basis of perspective imaging model; the image motion model and the gyroscope signal calibration method were given also. Based on the initial estimation for the image motion vector and combined the block matching algorithm, the motion vector was estimated accurately. The traditional diamond search method was modified to avoid local minimum in high noise and low contrast and improve the accuracy of the algorithm.

Key words: information processing, low-light-level telescope, electronic image stabilization, gyroscope, diamond search

CLC Number:

TH745

ZONG Yan-tao₁, JIANG Xiao-yu₁, WANG Xi₁, JI Hong-xia₂, ZHAO Kai₁. Research on Electronic Image Stabilization Technique for Vehicle-borne Low-light-level Telescope[J]. Acta Armamentarii, 2012, 33(9): 1041-1047.

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