Translational velocity measurement for single floating cell based on optical Fourier transform theory
Translational velocity measurement for single floating cell based on optical Fourier transform theory
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基于光学傅里叶变换理论的单个浮细胞平移速度测量
DOI：
10.1063/1.2183747
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发表时间：
2006
影响因子：
4
通讯作者：
N. Tanaka
中科院分区：
文献类型：
--
作者：
K. Ishizaki;I. Ishimaru;M. Yoshida;Y. Inoue;Toshiki Yasokawa;S. Kuriyama;Tsutomu Masaki;S. Nakai;K. Takegawa;N. Tanaka
这封信报告了跟踪低对比度细胞所需的平移速度测量。我们提出了一种基于光学傅里叶变换理论的新光学空间滤波方法。在该方法中，在光学傅里叶变换平面上安装针孔作为空间滤波器。通过该空间滤波器，从随机折射率分布中导出空间频率的任意分量作为周期性光强度分布。通过观察这种光强度的变化，我们可以借助高响应光电二极管获得低对比度细胞的平移速度。
This letter reports on translational velocity measurement, which is needed for tracking a low contrast cell. We propose a new optical spatial filtering method that is based on the optical Fourier transform theory. In this method, a pinhole is installed as a spatial filter on the optical Fourier transform plane. By means of this spatial filter, the arbitrary component of the spatial frequency is derived from the random refractive index distribution as the periodic light intensity distribution. By observing the changes of this light intensity, we can obtain the translational velocity of a low-contrast cell by means of a high-response photodiode.
数字视觉芯片及其应用
DOI：
--
发表时间：
2001
期刊：
Trans. of the Institute of Electronics, Information and Communication Engineers C (Japanese) Vol.J84-C, No.6
影响因子：
--
作者：
T.Komuro;M.Ishikawa
通讯作者：
M.Ishikawa