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公开(公告)号：US09836847B2
公开(公告)日：2017-12-05
申请号：US14880014
申请日：2015-10-09
Inventor： Takashi Kawamura
IPC: G06K9/00 , G06T7/00 , G01C3/06 , G02B7/28 , G02B7/34 , G02B7/36 , H04N5/232 , G06T5/00 , H04N9/04 , G06T7/571
CPC classification number: G06T7/571 , G01C3/06 , G02B7/28 , G02B7/34 , G02B7/36 , G06T5/003 , G06T2207/10024 , G06T2207/10028 , G06T2207/20182 , G06T2210/36 , H04N5/232 , H04N5/23212 , H04N9/045
Abstract: A depth estimation apparatus including: an imaging device which generates a first image signal and a second image signal by imaging an object at different phases; a storage unit configured to store model data defining a relationship between (i) lens blur and phase difference of the object in images and (ii) position of the object in the images in the depth axis; and a detecting unit configured to detect a position of the object in the depth axis from the first image signal and the second image signal, using the model data, wherein a phase difference between the first image signal and the second image signal is smaller than or equal to 15% in terms of a base line length.
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公开(公告)号：US09467616B2
公开(公告)日：2016-10-11
申请号：US14407569
申请日：2014-02-26
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。
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公开(公告)号：US09300861B2
公开(公告)日：2016-03-29
申请号：US14612258
申请日：2015-02-02
Inventor： Khang Nguyen , Takashi Kawamura
CPC classification number: H04N5/23212 , G03B13/36 , H04N5/23287
Abstract: Provided is a video recording apparatus that can generate image signals to increase a difference in amount of blur in recording video using a rolling shutter during wobbling, and includes: an image sensor that generates an image signal corresponding to an image; a driving unit that drives a focus lens along an optical axis; and a control unit that controls the driving unit for controlling a focus in an optical system, while the focus lens is wobbling, wherein the control unit (i) generates blur signals to increase a difference in amount of blur in a predetermined region by controlling imaging timings at which the image sensor captures the image, (ii) calculates distance information on a distance to the object to be displayed in the region, using blur signals in the region among the generated blur signals, and (iii) controls the focus using the distance information.
Abstract translation: 提供了一种视频记录装置，其可以产生图像信号，以在摆动期间使用滚动快门来增加记录视频中的模糊量的差异，并且包括：图像传感器，其生成与图像相对应的图像信号; 沿着光轴驱动聚焦透镜的驱动单元; 以及控制单元，其在所述对焦透镜摆动的同时控制所述驱动单元用于控制光学系统中的焦点，其中所述控制单元（i）通过控制成像来产生模糊信号以增加预定区域中的模糊量的差异 图像传感器捕获图像的定时，（ii）使用所产生的模糊信号中的区域中的模糊信号来计算与要在区域中显示的对象的距离上的距离信息，以及（iii）使用 距离信息。
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公开(公告)号：US20150146033A1
公开(公告)日：2015-05-28
申请号：US14407569
申请日：2014-02-26
Inventor： Shunsuke Yasugi , Kozo Ezawa , Takashi Kawamura
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。
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