公开(公告)号：US11195309B2

公开(公告)日：2021-12-07

申请号：US16475026

申请日：2016-11-25

Applicant: Teledyne Dalsa B.V. ,  Teledyne Digital Imaging, Inc.

Inventor： Yves Kessener ,  Andriy Lomako ,  Joseph Miller

IPC: G06T11/00

Abstract: The present invention relates to a method and a system for producing X-ray images from an object. According to this invention, a shift-and-add method is used for generating a stack of linear tomography planes each associated with a different area inside the object. A set of shift values is defined from the consideration of ensuring that said stack of linear tomography planes fills in the tomographic volume with a spatial density adequate to the application. If so required by the application, some focal planes can be selectively processed for sharpness reduction in some areas to control the depth-of-field. A focus stacking method is used to synthesize a single 2D X-ray image from UPI the tomographic stack of images. A depth map of in-focus areas from the linear tomography stack can be used for creating a 3D object model.

公开(公告)号：US20190325617A1

公开(公告)日：2019-10-24

申请号：US16475026

申请日：2016-11-25

Applicant: Teledyne Dalsa B.V. ,  Teledyne Dalsa, Inc.

Inventor： Yves Kessener ,  Andriy Lomako ,  Joseph Miller

IPC: G06T11/00

Abstract: The present invention relates to a method and a system for producing X-ray images from an object. According to this invention, a shift-and-add method is used for generating a stack of linear tomography planes each associated with a different area inside the object. A set of shift values is defined from the consideration of ensuring that said stack of linear tomography planes fills in the tomographic volume with a spatial density adequate to the application. If so required by the application, some focal planes can be selectively processed for sharpness reduction in some areas to control the depth-of-field. A focus stacking method is used to synthesize a single 2D X-ray image from UPI the tomographic stack of images. A depth map of in-focus areas from the linear tomography stack can be used for creating a 3D object model.