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首页> 外文会议>Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII pt.1 >Image registration for Fizeau Fourier transform imaging spectroscopy
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Image registration for Fizeau Fourier transform imaging spectroscopy

机译：Fizeau傅里叶变换成像光谱的图像配准

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摘要

Fourier transform imaging spectroscopy (FTIS) can be performed with a Fizeau imaging interferometer by recording a series of images with various optical path differences (OPDs) between subapertures of the optical system and postprocessing. The quality of the spectral data is affected by misregistration of the raw image measurements. A Fizeau FTIS system possesses unique degrees of freedom that can be used to facilitate image registration without further complication of the system design. We describe a registration technique based on the fact that certain spatial frequencies of the raw imagery are independent of the OPDs introduced between subapertures. Operational and post-processing tradeoffs associated with this technique are described, and the technique is demonstrated using computer-simulated data with image shift misregistrations under realistic noise conditions.
机译：傅立叶变换成像光谱（FTIS）可以使用Fizeau成像干涉仪通过记录一系列具有光学系统子孔径之间的光程差（OPD）和后处理的图像来进行。原始数据测量值的未对准会影响光谱数据的质量。 Fizeau FTIS系统具有独特的自由度，可用于促进图像配准，而不会导致系统设计进一步复杂化。我们基于原始图像的某些空间频率独立于子孔径之间引入的OPD的事实来描述一种配准技术。描述了与此技术相关联的操作和后处理权衡，并使用了计算机模拟数据和在实际噪声条件下图像偏移失准的技术来演示该技术。

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