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公开(公告)号：US20160161734A1
公开(公告)日：2016-06-09
申请号：US14902996
申请日：2014-06-25
Applicant: The University of Tokyo
Inventor： Hiromasa Oku , Masatoshi Ishikawa , Koseki Kobayashi
CPC classification number: G02B23/14 , G02B17/008 , G02B26/0816 , G02B27/0012 , G03B17/568 , H04N5/225 , H04N5/2259 , H04N5/232
Abstract: An object of the present invention is to widen a range in which line of sight change is possible, particularly in a pan direction. According to the present invention it is possible to acquire high line of sight changing speed. A pan mirror is capable of rotation in forward and reverse directions about a third rotational axis. Also, the third rotational axis extends in a direction that is substantially parallel to a line of sight direction directed from a tilt direction control section to the pan mirror. An angle α formed by the pan mirror and the third rotational axis is set in a range 0°
Abstract translation: 本发明的目的是扩大视线变化的范围，特别是在平移方向上。 根据本发明，可以获得高视距变化速度。 平底镜可以绕着第三旋转轴线在正向和反向方向上旋转。 此外，第三旋转轴线在基本上平行于从倾斜方向控制部分指向平底镜的视线方向的方向上延伸。 由平底镜和第三旋转轴形成的角度α设定在0°<α<90°的范围内。 倾斜方向控制部可以相对于由反射镜的旋转轨迹形成的虚拟平面扫描视线方向。 倾斜方向控制部还可以控制从俯视镜到物理对象的视线方向的倾斜角度。 平底镜可以通过围绕第三旋转轴线旋转来控制从俯视镜到物体的视线方向的俯仰角。
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公开(公告)号：US10481381B2
公开(公告)日：2019-11-19
申请号：US14902996
申请日：2014-06-25
Applicant: The University of Tokyo
Inventor： Hiromasa Oku , Masatoshi Ishikawa , Koseki Kobayashi
Abstract: An object of the present invention is to widen a range in which line of sight change is possible, particularly in a pan direction. According to the present invention it is possible to acquire high line of sight changing speed. A pan mirror is capable of rotation in forward and reverse directions about a third rotational axis. Also, the third rotational axis extends in a direction that is substantially parallel to a line of sight direction directed from a tilt direction control section to the pan mirror. An angle α formed by the pan mirror and the third rotational axis is set in a range 0°
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3.发明申请BACKGROUND-DIFFERENTIAL EXTRACTION DEVICE AND BACKGROUND-DIFFERENTIAL EXTRACTION METHOD 有权背景差异提取装置和背景差异提取方法（DIFFERENTIAL EXTRACTION METHOD）公开(公告)号：US20160088231A1
公开(公告)日：2016-03-24
申请号：US14890150
申请日：2014-04-28
Applicant: THE UNIVERSITY OF TOKYO
Inventor： Hiromasa Oku , Keiko Yokoyama , Masatoshi Ishikawa
CPC classification number: H04N5/23296 , G01S3/7864 , G06K9/4609 , G06K9/4652 , G06T7/11 , G06T7/174 , G06T7/194 , G06T7/20 , G06T2207/20224 , G06T2207/30244 , H04N5/2259 , H04N5/23216
Abstract: This invention provides a technology that allows the acquisition of background differentials using images acquired by a camera, the viewpoint of which moves. First, said camera acquires a background image, i.e. an image that does not contain a target object. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the background image is transformed to polar-coordinate information Next, the camera acquires an object image. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the object image is transformed to polar-coordinate information. The polar-coordinate information for the pixels in the object image is used to identify a target background, said target background being the part of the background image in an angle region corresponding to the object image. By comparing the object image and the target background, the differential therebetween is extracted.
Abstract translation: 本发明提供一种技术，其允许使用由其视点移动的相机获取的图像来获取背景差异。 首先，所述相机获取背景图像，即不包含目标对象的图像。 使用摄像机的视线方向和视点位置的信息，将背景图像中的像素的位置信息变换为极坐标信息。接下来，摄像机获取对象图像。 使用摄像机的视线方向和视点位置的信息，将对象图像中的像素的位置信息变换为极坐标信息。 用于对象图像中的像素的极坐标信息用于识别目标背景，所述目标背景是与对象图像对应的角度区域中的背景图像的一部分。 通过比较对象图像和目标背景，提取其间的差分。
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Patent Agency Ranking
公开(公告)号：US20160191871A1
公开(公告)日：2016-06-30
申请号：US14902828
申请日：2014-06-25
Applicant: THE UNIVERSITY OF TOKYO
Inventor： Hiromasa Oku , Alvaro Cassinelli , Masahiko Yasui , Masatoshi Ishikawa
CPC classification number: H04N9/3132 , G02B26/101 , G02B27/144 , G09G3/02 , G09G3/025 , H04N5/2256 , H04N5/74 , H04N9/3129
Abstract: An object of the present invention is to provide a device that is capable of presenting image information that is larger than an object by irradiating light onto the object that moves on a trajectory that is not known. An object tracking section controls line of sight direction so as to be directed towards a moving object. A rendering section irradiates a light beam in a direction along the line of sight direction. In this way the rendering section can irradiate the light beam onto the surface of the object. It is possible to present information, that has been rendered in a range that is larger than the surface area of the object, to an observer, utilizing an after image of the light beam that has been irradiated on the surface of the object.
Abstract translation: 本发明的目的是提供一种能够通过将光照射到在未知的轨迹上移动的物体上来呈现大于物体的图像信息的装置。 物体跟踪部分控制视线方向以指向移动物体。 渲染部沿沿着视线方向的方向照射光束。 以这种方式，渲染部分可以将光束照射到物体的表面上。 利用被照射在物体表面上的光束的后续图像，可以向观察者呈现已经在大于对象的表面积的范围内呈现的信息。
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公开(公告)号：US10142601B2
公开(公告)日：2018-11-27
申请号：US14902828
申请日：2014-06-25
Applicant: The University of Tokyo
Inventor： Hiromasa Oku , Alvaro Cassinelli , Masahiko Yasui , Masatoshi Ishikawa
Abstract: An object of the present invention is to provide a device that is capable of presenting image information that is larger than an object by irradiating light onto the object that moves on a trajectory that is not known. An object tracking section controls line of sight direction so as to be directed towards a moving object. A rendering section irradiates a light beam in a direction along the line of sight direction. In this way the rendering section can irradiate the light beam onto the surface of the object. It is possible to present information, that has been rendered in a range that is larger than the surface area of the object, to an observer, utilizing an after image of the light beam that has been irradiated on the surface of the object.
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公开(公告)号：US09924104B2
公开(公告)日：2018-03-20
申请号：US14890150
申请日：2014-04-28
Applicant: THE UNIVERSITY OF TOKYO
Inventor： Hiromasa Oku , Keiko Yokoyama , Masatoshi Ishikawa
CPC classification number: H04N5/23296 , G01S3/7864 , G06K9/4609 , G06K9/4652 , G06T7/11 , G06T7/174 , G06T7/194 , G06T7/20 , G06T2207/20224 , G06T2207/30244 , H04N5/2259 , H04N5/23216
Abstract: This invention provides a technology that allows the acquisition of background differentials using images acquired by a camera, the viewpoint of which moves. First, said camera acquires a background image, i.e. an image that does not contain a target object. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the background image is transformed to polar-coordinate information Next, the camera acquires an object image. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the object image is transformed to polar-coordinate information. The polar-coordinate information for the pixels in the object image is used to identify a target background, said target background being the part of the background image in an angle region corresponding to the object image. By comparing the object image and the target background, the differential therebetween is extracted.
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公开(公告)号：US09787886B2
公开(公告)日：2017-10-10
申请号：US15030832
申请日：2014-10-16
Applicant: The University of Tokyo
Inventor： Masatoshi Ishikawa , Hiromasa Oku , Tomohiko Hayakawa
CPC classification number: H04N5/2259 , G03B5/00 , G03B15/00 , G03B15/006 , G03B17/17 , G06T7/246 , H04N5/2254 , H04N5/23264 , H04N5/2328
Abstract: A blurless image capturing system sequentially acquires images with little blur, even in a situation where a camera moves. An image capturing camera unit and a mirror unit are both capable of continuous movement in at least a one-dimensional direction. The image capturing camera unit acquires an image of a physical object present within an object region by directing line of sight direction towards the object region by means of the mirror unit. The mirror body changes the line of sight from the image capturing camera unit. The drive unit changes an angle of the mirror body in a given angular velocity in accordance with movement of the image capturing camera unit and the mirror body In this way it is possible to keep the line of sight from the image capturing camera unit directed towards a physical object for a given time. The drive unit directs the line of sight from the image capturing camera unit towards another object region by driving the mirror body. The control unit controls operation of the drive unit.
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公开(公告)号：US20160103253A1
公开(公告)日：2016-04-14
申请号：US14889819
申请日：2013-05-09
Applicant: The University of Tokyo
Inventor： Hiromasa Oku , Lihui Wang , Masatoshi Ishikawa
CPC classification number: G02B3/14 , G02B27/0025
Abstract: A varifocal lens capable of exhibiting high lens performance even with low lens power, and also capable of realizing a comparatively large aperture includes a first elastic membrane arranged between a first medium and a second medium. The first elastic membrane is capable of elastic deformation by pressure from the first medium or the second medium. A drive section causes change in curvature of the first elastic membrane by causing variation in pressure or volume of the first medium or the second medium. The first tensile force applying section applies isotropic tensile force to the first elastic membrane.
Abstract translation: 即使具有低透镜功率也能够呈现高透镜性能并且还能够实现较大孔径的变焦透镜包括布置在第一介质和第二介质之间的第一弹性膜。 第一弹性膜能够通过来自第一介质或第二介质的压力弹性变形。 驱动部分通过引起第一介质或第二介质的压力或体积的变化而导致第一弹性膜的曲率变化。 第一张力施加部对第一弹性膜施加各向同性的拉伸力。
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