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Three Dimensional Reconstruction from ISAR Sequences

机译:从ISAR序列进行三维重建

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摘要

Inverse Synthetic Aperture Radar (ISAR) imagery provides an opportunity for 3D reconstruction, because it relies on target motion to provide cross-range resolution and is derived as a temporal sequence. As it moves, the target presents different aspects, which can be integrated to derive the third dimension. Tomasi and Kanade introduced a robust technique for recovering object shape and motion, based on factorization of a matrix that represents the 2D projection equations for a set of points on the target object, as observed in an image sequence. The technique has been applied to orthographic projection Tomasi and Kanade, paraperspective projection Poelman and Kanade, and perspective projection Han and Kanade, but encounters nonlinearities when applied to point perspective projection, which require iterative solution. ISAR projection is naturally well suited for application of the factorization technique because the projection equations are linear. 3D reconstruction may lead to improved performance for automatic target recognition (ATR) procedures and may also be used to enhance human visualization of imaged targets.
机译:合成孔径雷达(ISAR)图像为3D重建提供了机会,因为它依赖于目标运动来提供跨范围分辨率,并作为时间序列导出。随着目标的移动,目标呈现出不同的方面,可以将这些方面整合起来以得出第三维。 Tomasi和Kanade引入了一种强大的技术来恢复对象的形状和运动,该技术基于矩阵的分解,该矩阵表示目标对象上一组点的2D投影方程,如在图像序列中观察到的。该技术已应用于正交投影Tomasi和Kanade,准透视投影Poelman和Kanade以及透视投影Han和Kanade,但是在应用于点透视投影时会遇到非线性,这需要迭代求解。 ISAR投影自然很适合因式分解技术的应用,因为投影方程是线性的。 3D重建可以提高自动目标识别(ATR)程序的性能,也可以用于增强人类对成像目标的可视化。

著录项

  • 来源
    《》|2002年|p.58-67|共10页
  • 会议地点 Orlando FL(US);Orlando FL(US)
  • 作者

    Frank E. McFadden;

  • 作者单位

    General Dynamics Advanced Information Systems 12950 Worldgate Drive, Suite 300 Herndon, VA 20170;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

    ISAR; 3D; factorization;

    机译:ISAR; 3D;因式分解;

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