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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 6. Отображено 6.
08-11-2018 дата публикации

System and Method for Lead Foot Angle Inspection Using Multiview Stereo Vision

Номер: US20180324409A1
Автор: Hak Wee TANG, Ruini CAO, Kok Yeow LIM, Zin Oo THANT, TANG HAK WEE, CAO RUINI, LIM KOK YEOW, THANT ZIN OO, TANG, Hak Wee, CAO, Ruini, LIM, Kok Yeow, THANT, Zin Oo
Принадлежит:

The present invention includes a system and method for three-dimensional imaging and analysis of electronic components. Specifically, it permits rapid and reliable inspection of the lead foot angle in integrated circuit packages. A first image capturing device, a second image capturing device and a third image capturing device are arranged in a “corner shape” or “L-shape.” The first image capturing device forms the corner and obtains an image of the bottom of the component. The perspective viewing angle of the second image capturing device and the perspective viewing angle of the third image capturing device are orthogonal to each other to allow accurate three-dimensional reconstruction of the lead angles and detection of flaws or bends. 19.- (canceled)10. A system for analyzing the lead foot angle of an integrated circuit package comprising:a) a support for the object;b) a light source;c) a first image capturing device comprising a first lens and a first sensor and being mounted at a first bottom viewing angle that is perpendicular to a plane where the object is placed for capturing a first bottom view image,d) a second image capturing device comprising a second lens and a second sensor and being mounted at a second perspective viewing angle from the object for capturing a second perspective view image,e) a third image capturing device comprising a third lens and a third sensor and being mounted at a third perspective viewing angle from the object for capturing a third perspective view image,wherein the first, second and third image capturing devices form a corner shape with the first image capturing device in the center, the second image capturing device on a left side of the first image capturing device and the third image capturing device on a front side of the first image capturing device;wherein a first optical axis of the first imaging capturing device is a line passing through the center of said first lens and the center of said first sensor, a second ...

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Номер записи: 1
07-09-2017 дата публикации

METHODS OF INSPECTING A 3D OBJECT USING 2D IMAGE PROCESSING

Номер: US20170254639A1
Автор: Kok Weng WONG, Albert ARCHWAMETY, Han Cheng GE, Ruini CAO, WONG KOK WENG, ARCHWAMETY ALBERT, GE HAN CHENG, CAO RUINI, WONG Kok Weng, ARCHWAMETY Albert, GE Han Cheng, CAO Ruini
Принадлежит: Generic Power PTD LTD

The present disclosure provides a system and method to convert three-dimensional data into a two-dimensional height displacement map and extract the three-dimensional features and dimensions of a three-dimensional object using a two-dimensional image processing technique. An illumination source of the system scans across the workspace using a line laser and generates a two-dimensional height displacement map of the workspace. The individual pixel location represents an actual workspace sampled location. The pixel gray scale intensity represents the Z displacement height at the pixel location. A processing device processes the features and dimensions within two-dimensional image as a gray scale using two-dimensional image processing such as pattern match, blob, convolution and edge detection. 1. A method of measuring a height of a location on an object , comprising:projecting at least one line of radiation onto the object using at least one illumination source;detecting at least one line of radiation reflected from the object including semi-transparent surface using at least one image capturing unit comprising at least one sensor and at least one camera; andgenerating at least one two-dimensional height displacement map from the detected line of radiation, wherein the two-dimensional height displacement map comprises a plurality of spots using at least one processing unit; andprocessing the intensity of each spot of the plurality of spots as a gray-scale using a two-dimensional image processing technique to calculate the height of the object at that point; {'br': None, 'i': 'x', 'Object height=Height of sensor/(cosine(90 degree−(laser angle+camera angle)))/cosine(laser angle),'}, 'the height of the object is calculated by following formulawherein height of sensor signifies the height to the y-location of the pixel with maximum intensity on the sensor;wherein x represents the x position on the two-dimensional height displacement map;wherein laser angle is angle ...

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Номер записи: 2
09-07-2015 дата публикации

METHOD AND APPARATUS FOR DETERMINING COPLANARITY IN INTEGRATED CIRCUIT PACKAGES

Номер: US20150192528A1
Автор: CAO Ruini, TANG Hak Wee, THANT Zin Oo, YANG Xulei
Принадлежит: GENERIC POWER PTE LTD

A method and apparatus for determining coplanarity of three-dimensional features on a substrate comprises a support for an object to be inspected in an object plane, a light source for illuminating the object, a first image capturing device having a first sensor and a first tiltable lens, a second image capturing device having a second sensor and a second tiltable lens, and an image processor to determine the coplanarity. Each tiltable lens is movable from a first variable angle to a second variable angle, with respect to its sensor, so that the respective lens plane and its sensor plane substantially intersect at the object plane in accordance with the Scheimpflug principle and the respective image is in focus across the whole field of view and of uniform light intensity. 1. An apparatus for determining coplanarity of three-dimensional features on a substrate of an object , comprising:a support for the object to be inspected where the object has an object plane;a light source for illuminating the object to be inspected;a first image capturing device comprising a first sensor having a first sensor plane and a first tiltable lens having a first lens plane, the first image capturing device being mounted at a first perspective viewing angle with respect to the object plane for capturing a first side view image of the illuminated object;a second image capturing device comprising a second sensor having a second sensor plane and a second tiltable lens having a second lens plane, the second image capturing device being mounted at a second perspective viewing angle with respect to the object plane for capturing a second side view image of the illuminated object; andan image processor for processing the first and the second side view images captured by the first and the second imaging capturing devices to determine the coplanarity of the three-dimensional features on the substrate,wherein the first tiltable lens is movable from a first variable angle to a second variable ...

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Номер записи: 3
03-12-2015 дата публикации

Methods of inspecting a 3d object using 2d image processing

Номер: WO2015183196A1
Автор: Albert Archwamety, Han Cheng Ge, Kok Weng Wong, Ruini CAO
Принадлежит: GENERIC POWER PTE LTD

The present disclosure provides a system and method to convert three- dimensional data into a two-dimensional height displacement map and extract the three- dimensional features and dimensions of a three-dimensional object using a two- dimensional image processing technique. An illumination source of the system scans across the workspace using a line laser and generates a two-dimensional height displacement map of the workspace. The individual pixel location represents an actual workspace sampled location. The pixel gray scale intensity represents the Z displacement height at the pixel location. A processing device processes the features and dimensions within two-dimensional image as a gray scale using two-dimensional image processing such as pattern match, blob, convolution and edge detection.

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Номер записи: 4
08-11-2018 дата публикации

System and method for lead foot angle inspection using multiview stereo vision

Номер: WO2018203824A1
Автор: Hak Wee Tang, Kok Yeow Lim, Ruini CAO, Zin Oo THANT
Принадлежит: GENERIC POWER PTE LTD

The present invention includes a system and method for three-dimensional imaging and analysis of electronic components. Specifically, it permits rapid and reliable inspection of the lead foot angle in integrated circuit packages. A first image capturing device, a second image capturing device and a third image capturing device are arranged in a "corner shape" or "L-shape." The first image capturing device forms the corner and obtains an image of the bottom of the component. The perspective viewing angle of the second image capturing device and the perspective viewing angle of the third image capturing device are orthogonal to each other to allow accurate three-dimensional reconstruction of the lead angles and detection of flaws or bends.

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Номер записи: 5
14-03-2017 дата публикации

Method and apparatus for determining coplanarity in integrated circuit packages

Номер: US09594028B2
Автор: Hak Wee Tang, Ruini CAO, Xulei YANG, Zin Oo THANT
Принадлежит: GENERIC POWER PTE LTD

A method and apparatus for determining coplanarity of three-dimensional features on a substrate comprises a support for an object to be inspected in an object plane, a light source for illuminating the object, a first image capturing device having a first sensor and a first tiltable lens, a second image capturing device having a second sensor and a second tiltable lens, and an image processor to determine the coplanarity. Each tiltable lens is movable from a first variable angle to a second variable angle, with respect to its sensor, so that the respective lens plane and its sensor plane substantially intersect at the object plane in accordance with the Scheimpflug principle and the respective image is in focus across the whole field of view and of uniform light intensity.

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Номер записи: 6