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公开(公告)号：US20220349709A1
公开(公告)日：2022-11-03
申请号：US17734495
申请日：2022-05-02
Applicant: VIRTEK VISION INTERNATIONAL INC.
Inventor： Kurt D. Rueb , Jeff Erbrecht , Marc Cameron , Elizabeth McAndless
Abstract: A system and method for aligning projection of an optical indicia on a surface of a large object is disclosed. A reference is disposed in proximity to the object. The reference includes a plurality of markers spaced at intermittent locations. A projection system projects optical indicia onto the surface of the object. A detection system detects the markers disposed upon the reference and signals an image of the markers to a processor for the processor to register a location of the projection system relative to the reference. The reference is aligned with a feature disposed upon the object enabling registration of the markers to the object. A location of the projection system relative to the object is established enabling the projection system to project the optical indicia onto the object to a predetermined location.
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公开(公告)号：US11209268B2
公开(公告)日：2021-12-28
申请号：US16345418
申请日：2017-10-26
Inventor： Jingxiong Wang , Hui Mao , Shiliang Pu
IPC: G01C3/04 , G06T7/73 , G06T7/521 , G06T7/571 , H04N5/232 , G01B11/26 , G01C3/32 , G01C11/14 , G01C3/14 , G01C11/06 , G01C3/00 , G01C3/08
Abstract: A depth measuring method and system applicable to a first binocular camera having a zoom lens is provided. The method includes: obtaining a current depth of a target object (S101); determining a focus with which the current depth is measured as a current focus (S102); determining, according to the preset correspondence between depth ranges and focuses, a current reference focus corresponding to a current reference depth range; wherein, the current reference depth range is a depth range in which the current depth falls (S103); determining whether the current focus is the same as the current reference focus; (S104); if the current focus is the same as the current reference focus, determining the current depth as the target depth of the target object (S105); or if the current focus is not the same as the current reference focus, adjusting the current focus to the current reference focus, measuring a current depth of the target object with the adjusted current focus (S106), and proceeding to the operation (S103) of determining, according to preset correspondence between depth ranges and focuses, a current reference focus corresponding to a current reference depth range. An object in various depth ranges is measured with a varying focus. The accuracy of the depth measurement of the target object is thus improved.
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公开(公告)号：US4641919A
公开(公告)日：1987-02-10
申请号：US559289
申请日：1983-12-08
Applicant: Herve R. Gresse , Annick R. Carn
Inventor： Herve R. Gresse , Annick R. Carn
CPC classification number: G01C11/14 , G02B27/2235
Abstract: The invention relates to a stereoscopic viewer for aerial photographs. In this viewer, optical means permit simultaneous examination, through two eyepieces, of corresponding points in two successive panoramic photographs in the film to be examined. The optical means comprise, for each optical path, on the one hand, a set of plane-mirrors and, on the other hand, a rotating system adapted to rotate the images about the corresponding viewing axis, the unit thus assuring an even number of reflections; the adjusting means comprise elements permitting at least one of the rotating systems to pivot about a fixed axis and/or the displacement of at least one of the plane-mirrors.
Abstract translation: 本发明涉及用于航空照片的立体观察器。 在该观察者中，光学装置允许通过两个目镜同时检查要检查的胶片中的两个连续全景照片中的相应点。 光学装置一方面包括一组平面镜，另一方面，包括适于围绕对应观察轴旋转图像的旋转系统，因此，该单元确保了偶数个 反思; 调节装置包括允许旋转系统中的至少一个绕固定轴线枢转和/或至少一个平面镜的位移的元件。
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公开(公告)号：US20230032712A1
公开(公告)日：2023-02-02
申请号：US17381554
申请日：2021-07-21
Applicant: Kayrros
Inventor： Roger Mari , Gabriele Facciolo , Jérémy Anger , Carlo De Franchis
Abstract: The invention relates to computer-implemented method for the 3D reconstruction of a ground surface area by stereophotogrammetry, comprising the steps of: determining corrected Rational Polynomial Camera, RPC, models by performing bundle adjustment (BA) of original RPC models each provided with an image of a set of images of the ground surface area acquired by a remote imaging sensor and each associated to a corresponding original projection function ({Pm}) from a 3D object space to a 2D image space, wherein determining the corrected RPC models comprises determining corrected projection functions ({Pmcor}) from the 3D object space to the 2D image space; and determining (PC) a 3D point cloud representative (3DPC) of the ground surface area by triangulation, based on the corrected RPC models, of stereo correspondences within images of the set of images. In accordance with the invention, determining the corrected projection functions comprises determining, for each of the original projection function, a 3D corrective rotation around a remote imaging sensor center to be applied in the 3D space before performing the original projection function.
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公开(公告)号：US20210025707A1
公开(公告)日：2021-01-28
申请号：US16935359
申请日：2020-07-22
Applicant: TOPCON Corporation
Inventor： Nobuyuki Nishita
Abstract: A surveying system includes a distance measuring unit for performing the distance measurement based on the distance measuring light, an optical axis deflector configured to enable two-dimensionally deflecting the optical axis of the distance measuring light, a projecting direction detecting module for performing the angle measurement of the optical axis of the distance measuring light, and an arithmetic control module performs captures the pole by a scan pattern having a predetermined shape, acquires the point cloud data of at least two positions where the scan pattern crosses the pole, calculates an axis of the pole, calculates a direction vector, performs a linear scan along the direction vector, determines as a measuring point a point where an intersection of the optical axis of the distance measuring light and the direction vector coincides or substantially coincides with a measurement result, and calculates the three-dimensional coordinates of the measuring point.
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Patent Agency Ranking
公开(公告)号：US09001203B2
公开(公告)日：2015-04-07
申请号：US13389922
申请日：2010-08-12
Applicant: Tadao Shimada , Tsuneki Sakakibara , Tatsuya Hirai
Inventor： Tadao Shimada , Tsuneki Sakakibara , Tatsuya Hirai
CPC classification number: G01C11/12 , G01B11/026 , G01C11/14 , G01C15/00 , H04N5/772 , H04N9/8205
Abstract: A photography unit photographs a target, a control unit acquires distance data between a photography position and a target to be photographed of the photography unit, an azimuth angle and an elevation/depression angle of a photography direction of the photography unit together with the image information by an angle distance measurement unit synchronously or asynchronously to the shutter operation of the photography unit. The angle distance measurement unit has a configuration without using an axis fixed onto a mobile object. Coordinate information of the photography position of the photography unit is acquired from the coordinate measurement unit synchronously to asynchronously to the shutter operation. The control unit calculates coordinate information of a photographing target, based on the data of the acquired distance data, the azimuth, elevation and depression angles, and the coordinate information.
Abstract translation: 拍摄单元拍摄目标，控制单元获取拍摄单元的拍摄位置和要拍摄的拍摄对象的距离数据，拍摄单元的拍摄方向的方位角和仰角/俯仰角以及图像信息 通过角度距离测量单元与摄影单元的快门操作同步或异步。 角度测量单元具有不使用固定在移动体上的轴的结构。 拍摄单元的拍摄位置的坐标信息与坐标测量单元同步地与快门操作异步地获取。 控制单元基于获取的距离数据的数据，方位角，仰角和俯仰角以及坐标信息来计算拍摄对象的坐标信息。
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7.发明授权
公开(公告)号：US4099880A
公开(公告)日：1978-07-11
申请号：US733967
申请日：1976-10-19
Applicant: Tsutomu Kano
Inventor： Tsutomu Kano
Abstract: A method and apparatus for stereoscopic measurement of an actual value of depth in a subject through its three-dimensional image obtained from two stereoscopically photographed films by utilizing three factors, that is, the center of optical axis of an X-ray tube or a camera which is indexed from the films at the time of stereoscopic photography, distance of movement from the first photographic point to the second photographic point and distance from the X-ray tube or the lens to the film.
Abstract translation: 一种用于通过利用三个因素即X射线管或照相机的光轴的中心从两个立体拍摄膜获得的三维图像立体测量被摄物体的实际深度值的方法和装置 其从立体摄影时的胶片，从第一摄影点到第二摄影点的移动距离以及从X射线管或镜片到胶片的距离被从索引中分离。
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公开(公告)号：US09857172B1
公开(公告)日：2018-01-02
申请号：US15714070
申请日：2017-09-25
Inventor： Mingli Dong , Peng Sun , Wei Li , Jun Wang , Bixi Yan , Naiguang Lv
CPC classification number: G01C11/10 , G01C11/14 , G06F17/18 , G06T3/40 , G06T7/75 , G06T7/77 , G06T7/85 , G06T2200/21
Abstract: The present invention provides a method for implementing high-precision orientation and evaluating orientation precision of a large-scale dynamic photogrammetry system, including steps: a) selecting a scale bar, arranging code points at two ends of the scale bar, and performing length measurement on the scale bar; b) evenly dividing a measurement space into multiple regions, sequentially placing the scale bar in each region, and photographing the scale bar by using left and right cameras; d) limiting self-calibration bundle adjustment by using multiple length constraints, adjustment parameters including principal point, principal distance, radial distortion, eccentric distortion, in-plane distortion, exterior orientation parameter and spatial point coordinate; and e) performing traceable evaluation of orientation precision of the photogrammetry system. The present invention can effectively reduce the relative error in length measurement.
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公开(公告)号：US20170261319A1
公开(公告)日：2017-09-14
申请号：US15301358
申请日：2015-12-07
Inventor： Chongli Zhu , Jinbao Chen
CPC classification number: G01C11/14 , G01C5/00 , G01C11/00 , G06T3/0062 , G06T7/13 , G06T7/60 , G06T7/62 , G06T7/90 , G06T2207/10024
Abstract: Embodiments of the present invention disclose a building height calculation method, device, and storage medium. The method includes: acquiring an original picture including an image of a building; projecting the original picture to a surface of a preset sphere to form a projected picture; performing an edge detection on the image of the building in the projected picture to acquire a pixel height of the building; determining a projection angle of the projection on the preset sphere based on the pixel height of the building; and determining a height of the building based on the projection angle and a distance between the building and a capturing position of the original picture. In the embodiments of the present invention, a projection angle of a building is determined based on an original picture including an image of the building, and the height of the building is determined based on the projection angle and a distance between the building and a capturing position of the original picture. Hence, the height of the building can be obtained automatically and quickly based on the picture without manual involvements, thus reducing the cost of acquisition while improving the acquisition efficiency.
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公开(公告)号：US4498735A
公开(公告)日：1985-02-12
申请号：US394841
申请日：1982-07-02
Applicant: Herve R. Gresse , Annick R. Carn
Inventor： Herve R. Gresse , Annick R. Carn
CPC classification number: G01C11/14 , G02B27/2235
Abstract: The present invention relates to a stereoscopic viewer which comprises optical elements permitting simultaneous examination, through two eyepieces, of two successive panoramic images in a film of panoramic exposures, the elements defining an optical path between each of the two images and its relevant eyepiece, and control elements for displacing one of the two images received by the observer in relation to the other; the optical elements comprise, for each optical path, on the one hand, a set of mirrors providing an odd number of reflections and, on the other hand, a total-reflection prism, preferably a right prism, the two prisms having, as a base, an isosceles triangle; the faces of the two prisms corresponding to the third side of the base, upon which total reflection is effected, are arranged substantially perpendicularly to the plane of the film to be examined and form between them an angle of about 90.degree., one of the faces running substantially parallel with the longitudinal axis of the film to be examined.
Abstract translation: 本发明涉及一种立体观看器，其包括光学元件，允许通过两个目镜在全景曝光的胶片中同时检查两个连续的全景图像，所述元件限定两个图像中的每一个及其相关的目镜之间的光路，以及 用于移动由观察者相对于另一个接收的两个图像中的一个图像的控制元件; 光学元件一方面包括提供奇数次反射的一组反射镜，另一方面，包括全反射棱镜，优选右棱镜，两个棱镜具有作为 基座，等腰三角形; 对应于基底的第三侧的两个棱镜的面进行全反射，基本上垂直于待检查膜的平面布置，在它们之间形成约90°的角度，其中一个面 基本上平行于要检查的膜的纵向轴线运行。
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