公开(公告)号：US20150176966A1

公开(公告)日：2015-06-25

申请号：US14567436

申请日：2014-12-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akira EGUCHI

IPC: G01B9/02 ,  G01B9/021

CPC classification number: G03H1/0443 ,  G03H2001/0456 ,  G03H2001/046 ,  G03H2001/0471 ,  G03H2210/62 ,  G03H2222/42 ,  G03H2222/44 ,  G03H2223/14

Abstract: The imaging apparatus includes an optical system dividing light into object and reference beams and causing the object beam and the reference beam to interfere with each other to form interference fringes on an image sensor. A processor performs multiple imaging processes for the interference fringes with different incident angles of the object beam to an object, a first process to acquire a transmitted wavefront for each incident angle and a second process to calculate a three-dimensional refractive index distribution from the transmitted wavefronts. The apparatus includes a modulator changing a phase distribution of light in any one of an optical path from a light source to a dividing element, a reference beam path and an optical path from a combining element to the image sensor and causes the modulator to change the phase distribution in at least one of the multiple imaging processes.

Abstract translation: 成像装置包括将光分成物体和参考光束并使物体光束和参考光束彼此干涉以在图像传感器上形成干涉条纹的光学系统。 处理器对于具有对象光束到对象的不同入射角的干涉条纹执行多个成像处理，对于每个入射角获取透射波阵面的第一处理和从所传送的第三过程计算三维折射率分布的第二处理 波前。 该装置包括调制器，其改变从光源到分割元件的光路中的任何一个中的光的相位分布，参考光束路径和从组合元件到图像传感器的光路，并且使调制器改变 在多个成像过程中的至少一个中进行相位分布。

公开(公告)号：US20140126806A1

公开(公告)日：2014-05-08

申请号：US14070684

申请日：2013-11-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akira EGUCHI

IPC: G06T5/00

CPC classification number: G06T5/002 ,  G02B21/367 ,  G06T5/10 ,  G06T2207/20052 ,  G06T2207/20056 ,  H04N5/217

Abstract: An image processing method is configured to denoise three-dimensional image data. The image processing method includes an image transform step of performing a frequency transform for the three-dimensional image data in the optical axis direction and of calculating three-dimensional transformed image data, an image modulation step of reducing an absolute value of the three-dimensional transformed image data in a specific frequency region and of calculating three-dimensional modulated image data, and an inverse image transform step of performing an inverse frequency transform corresponding to the frequency transform for the three-dimensional modulated image data in the optical axis direction and of calculating three-dimensional inversely transformed image data. The specific frequency region is a part of a predetermined.

Abstract translation: 图像处理方法被配置为对三维图像数据进行去噪。 该图像处理方法包括对光轴方向的三维图像数据进行频率变换并计算三维变换图像数据的图像变换步骤，减小三维图像数据的绝对值的图像调制步骤 在特定频率区域中的变换图像数据和计算三维调制图像数据的逆变换图像数据;以及反转图像变换步骤，对与光轴方向的三维调制图像数据进行频率变换相对应的逆频率变换， 计算三维逆变换图像数据。 特定频率区域是预定的一部分。