Shimobaba Tomoyoshi, Yamanashi Hiroya, Kakue Takashi, Oikawa Minoru, Okada Naohisa, Endo Yutaka, Hirayama Ryuji, Masuda Nobuyuki, Ito Tomoyoshi
Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inege-ku, Chiba 263-8522, Japan.
Sci Rep. 2013;3:2664. doi: 10.1038/srep02664.
We demonstrate an in-line digital holographic microscopy using a consumer scanner. The consumer scanner can scan an image with 4,800 dpi. The pixel pitch is approximately 5.29 μm. The system using a consumer scanner has a simple structure, compared with synthetic aperture digital holography using a camera mounted on a two-dimensional moving stage. In this demonstration, we captured an in-line hologram with 23, 602 × 18, 023 pixels (≈0.43 gigapixels). The physical size of the scanned hologram is approximately 124 mm × 95 mm. In addition, to accelerate the reconstruction time of the gigapixel hologram and decrease the amount of memory for the reconstruction, we applied the band-limited double-step Fresnel diffraction to the reconstruction.
我们展示了一种使用消费级扫描仪的同轴数字全息显微镜。该消费级扫描仪能够以4800 dpi扫描图像。像素间距约为5.29μm。与使用安装在二维移动平台上的相机的合成孔径数字全息术相比，使用消费级扫描仪的系统结构简单。在本次演示中，我们捕获了一幅具有23602×18023像素（≈0.43千兆像素）的同轴全息图。扫描全息图的物理尺寸约为124 mm×95 mm。此外，为了加快千兆像素全息图的重建时间并减少重建所需的内存量，我们在重建中应用了带限双步菲涅耳衍射。
