公开(公告)号：US09467616B2

公开(公告)日：2016-10-11

申请号：US14407569

申请日：2014-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shunsuke Yasugi ,  Kozo Ezawa ,  Takashi Kawamura

IPC: G03B13/00 ,  H04N5/232 ,  G02B7/28 ,  G02B7/36 ,  H04N5/353 ,  G06T7/00 ,  H04N5/378 ,  G01C3/32 ,  G03B13/36

CPC classification number: H04N5/23212 ,  G01C3/32 ,  G02B7/28 ,  G02B7/36 ,  G03B13/36 ,  G06T7/571 ,  H04N5/232 ,  H04N5/353 ,  H04N5/378

Abstract: A distance measurement apparatus includes: an imaging element that images an object by performing exposure and readout of electric charges sequentially for each row or column; an optical system that has a controllable in-focus position; an imaging control unit that moves the in-focus position at constant speed, and causes the imaging element to image the object sequentially while the in-focus position is being moved, to obtain blurred images; a distance measurement unit that measures a distance from a reference position in the optical system to the object using the blurred images and a point spread function dependent on object distance; and a correction unit that performs a correction process on the distance for each row or column according to a movement range of the in-focus position in which the in-focus position is moved during the exposure for each row or column when the blurred images are obtained.

Abstract translation: 距离测量装置包括：成像元件，通过对每行或列进行顺序地对电荷进行曝光和读出而对物体进行成像; 具有可控焦点位置的光学系统; 成像控制单元，其以恒定速度移动对焦位置，并且使得成像元件在移动对焦位置的同时顺序对目标进行成像，以获得模糊图像; 距离测量单元，其使用模糊图像测量从光学系统中的参考位置到对象的距离，以及取决于对象距离的点扩散函数; 以及校正单元，其根据在模糊图像为每个行或列的曝光期间移动对焦位置的对焦位置的移动范围时针对每行或列执行校正处理 获得。

公开(公告)号：US20150146033A1

公开(公告)日：2015-05-28

申请号：US14407569

申请日：2014-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shunsuke Yasugi ,  Kozo Ezawa ,  Takashi Kawamura

IPC: H04N5/232 ,  G06T7/00 ,  H04N5/378

CPC classification number: H04N5/23212 ,  G01C3/32 ,  G02B7/28 ,  G02B7/36 ,  G03B13/36 ,  G06T7/571 ,  H04N5/232 ,  H04N5/353 ,  H04N5/378

Abstract: A distance measurement apparatus includes: an imaging element that images an object by performing exposure and readout of electric charges sequentially for each row or column; an optical system that has a controllable in-focus position; an imaging control unit that moves the in-focus position at constant speed, and causes the imaging element to image the object sequentially while the in-focus position is being moved, to obtain blurred images; a distance measurement unit that measures a distance from a reference position in the optical system to the object using the blurred images and a point spread function dependent on object distance; and a correction unit that performs a correction process on the distance for each row or column according to a movement range of the in-focus position in which the in-focus position is moved during the exposure for each row or column when the blurred images are obtained.

Abstract translation: 距离测量装置包括：成像元件，通过对每行或列进行顺序地对电荷进行曝光和读出而对物体进行成像; 具有可控焦点位置的光学系统; 成像控制单元，其以恒定速度移动对焦位置，并且使得成像元件在移动对焦位置的同时顺序对目标进行成像，以获得模糊图像; 距离测量单元，其使用模糊图像测量从光学系统中的参考位置到对象的距离，以及取决于对象距离的点扩散函数; 以及校正单元，其根据在模糊图像为每个行或列的曝光期间移动对焦位置的对焦位置的移动范围时针对每行或列执行校正处理 获得。