论文标题
使用单个检测器的零级图像增强CASSI
Enhancement of CASSI by a zero-order image employing a single detector
论文作者
论文摘要
编码的光圈快照光谱成像（CASSI）使得可以从单个2D图像中恢复3D高光谱数据。但是，重建问题的严重不足，改善压缩比的努力通常会使成像系统更加复杂，并导致传入光强度的显着丧失。在本文中，我们提出了一种新颖的CASSI方法，该方法可以用单个相机捕获场景的光谱剪切和集成图像。我们在500-900 nm的光谱范围内对三个不同的测试场景进行了高光谱成像。我们证明了使用非划分图像对相机重建数据的重建的突出效果。频谱集成图像的使用提高了重建质量，我们观察到了大约。减少重建时间的五倍。
Coded aperture snapshot spectral imaging (CASSI) makes it possible to recover 3D hyperspectral data from a single 2D image. However, the reconstruction problem is severely underdetermined and efforts to improve the compression ratio typically make the imaging system more complex and cause a significant loss of incoming light intensity. In this paper, we propose a novel approach to CASSI which enables capturing both spectrally sheared and integrated image of a scene with a single camera. We performed hyperspectral imaging of three different testing scenes in the spectral range of 500-900 nm. We demonstrate the prominent effect of using the non-diffracted image on the reconstruction of data from our camera. The use of the spectrally integrated image improves the reconstruction quality and we observed an approx. fivefold reduction in reconstruction time.
