论文标题
差分编码的光圈单刺光谱成像
Differential Coded Aperture Single-Snapshot Spectral Imaging
论文作者
论文摘要
我们提出了一个新颖的概念，即差分编码的光圈快照光谱成像（D-CASSI）技术利用了使用{-1，+1}随机掩码的好处，该掩码是通过使用压缩感应的宽带单刺激性摄像头证明的。为了加倍信息，我们通过两个互补的随机掩码对图像进行编码，事实证明，图像优于两个独立模式。我们利用并行捕获到单个检测器上的分散和非分散的编码图像。我们探索了处理测量数据的几种不同方法，这表明检索复杂的高光谱场景方面有显着改善。实验是通过模拟完成的，以量化重建保真度。差异CASSI的概念也可以通过多SNAPSHOT CASSI轻松实现，而无需任何光学系统修改。
We propose a novel concept of differential coded aperture snapshot spectral imaging (D-CASSI) technique exploiting the benefits of using {-1,+1} random mask, which is demonstrated by a broadband single-snapshot hyperspectral camera using compressed sensing. To double the information, we encode the image by two complementary random masks, which proved to be superior to two independent patterns. We utilize dispersed and non-dispersed encoded images captured in parallel onto a single detector. We explored several different approaches to processing the measured data, which demonstrates significant improvement in retrieving complex hyperspectral scenes. The experiments were completed by simulations in order to quantify the reconstruction fidelity. The concept of differential CASSI could be easily implemented also by multi-snapshot CASSI without any need for optical system modification.
