公开(公告)号：US20180131863A1

公开(公告)日：2018-05-10

申请号：US15862946

申请日：2018-01-05

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Jeremie Teyssier ,  Francesco CASCIO

IPC: H04N5/232 ,  H04N5/235 ,  G06T5/00 ,  G06T5/50

CPC classification number: H04N5/23212 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10148 ,  H04N5/2356

Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.

公开(公告)号：US20160182808A1

公开(公告)日：2016-06-23

申请号：US14833508

申请日：2015-08-24

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Jérémie TEYSSIER ,  Francesco CASCIO

IPC: H04N5/232

CPC classification number: H04N5/23212 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10148 ,  H04N5/2356

Abstract: A method of adjusting a lens may include adjusting the lens at a first focus position, and acquiring a first image of a scene through the lens. The method may further include adjusting the lens at a second focus position, and acquiring a second image of the same scene through the lens. In addition, the method may include producing respective power spectra of the first and second images, and producing a criterion representing the ratio of the power spectra to estimate a focus error of the lens.

Abstract translation: 调整透镜的方法可以包括在第一聚焦位置调整透镜，并且通过透镜获取场景的第一图像。 该方法还可以包括在第二焦点位置调整透镜，以及通过透镜获取相同场景的第二图像。 此外，该方法可以包括产生第一和第二图像的各个功率谱，并且产生表示功率谱的比率以估计透镜的聚焦误差的标准。