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公开(公告)号：US20180089522A1
公开(公告)日：2018-03-29
申请号：US15273964
申请日：2016-09-23
申请人： OptoFidelity Oy
发明人： Laine Sami , Hans Kuosmanen , Kimmo Jokinen
CPC分类号： G06K9/3216 , G06F3/0418 , G06F3/0425 , G06K19/06037 , G06K2009/3225 , G06T7/0018 , G06T7/0044 , G06T7/0085 , G06T7/13 , G06T7/74 , G06T7/80 , G06T2207/10024 , G06T2207/30204 , G06T2207/30244
摘要： There are disclosed various methods, apparatuses and computer program products for camera assisted alignment detection. In some embodiments a certain number of patterns are shown on a display of a device under test, at least one image of the display is captured, the at least one captured image is analyzed to find out locations of the patterns, and the locations of the patterns are used to determine the pose of the device under test.
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公开(公告)号：US09818034B1
公开(公告)日：2017-11-14
申请号：US14715376
申请日：2015-05-18
申请人： Cognitech, Inc.
发明人： Leonid I. Rudin , Pablo Musé , Pascal Monasse
CPC分类号： G06K9/00973 , G01B11/24 , G01B11/27 , G06K9/00 , G06K2009/363 , G06K2209/40 , G06T5/006 , G06T7/0018 , G06T7/60 , G06T7/80 , H04N1/00336 , H04N5/225
摘要： Detecting a pattern in an image by receiving the image of a pattern and storing the image in a memory, where the pattern is composed of shapes that have geometrical properties that are invariant under near projective transforms. In some embodiments the process detects shapes in the image using the geometrical properties of the shapes, determines the alignment of the various shapes, and, corresponds or matches the shapes in the image with the shapes in the pattern. This pattern detection process may be used for calibration or distortion correction in optical devices.
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公开(公告)号：US09807367B2
公开(公告)日：2017-10-31
申请号：US14979755
申请日：2015-12-28
发明人： Chia-Ming Jan , Ying-Chieh Lin
CPC分类号： H04N13/229 , G02B3/0056 , G02B3/04 , G02B13/00 , G02B27/0075 , G03B35/08 , G03B41/00 , G06T7/0018 , G06T7/80 , G06T2207/10052 , H04N5/2256 , H04N5/335 , H04N13/246
摘要： A light field image capturing apparatus includes: a main lens, configured to transmit light of an object environment, and including an optical axis; a beam generation unit, configured to receive the light transmitted by the main lens and generate plurality Bessel-beams, where the beam generation unit includes plurality slits or conical lenses arranged in an array manner and configured to generate the Bessel-beam respectively; a micro-lens unit, configured to receive the Bessel-beam generated by the beam generation unit, and including plurality micro-lens elements corresponding to the beam generation unit, wherein each micro-lens element is configured to determine a focus point generated after the Bessel-beam passes through each micro-lens element, and a focal length of a distance between the focus point and the micro-lens element; and a light sensing unit, including a focal plane, and configured to enable the focus point to be focused on the focal plane.
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公开(公告)号：US09779478B1
公开(公告)日：2017-10-03
申请号：US15284898
申请日：2016-10-04
申请人： Oculus VR, LLC
发明人： Austin Wilson , Douglas Robert Lanman , Nicholas Daniel Trail , Scott Charles McEldowney , Stephen James McNally , Yusufu Njoni Bamaxam Sulai
CPC分类号： G06T3/4092 , G02B27/0093 , G02B27/0172 , G02B2027/0132 , G02B2027/0134 , G06F3/012 , G06F3/013 , G06F3/0346 , G06F3/1423 , G06T7/0018 , G06T7/12 , G06T11/00 , G09G3/002 , G09G5/00 , G09G2340/0407
摘要： A head-mounted display (HMD) divides an image into a high resolution (HR) inset portion at a first resolution, a peripheral portion, and a transitional portion. The peripheral portion is downsampled to a second resolution that is less than the first resolution. The transitional portion is blended such that there is a smooth change in resolution that corresponds to a change in resolution between a fovea region and a non-fovea region of a retina. An inset region is generated using the HR inset portion and the blended transitional portion, and a background region is generated using the downsampled peripheral portion. The inset region is provided to a HR inset display, and the background region is provided to a peripheral display. An optics block combines the displayed inset region with the displayed background region to generate composite content.
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公开(公告)号：US09373161B2
公开(公告)日：2016-06-21
申请号：US14188126
申请日：2014-02-24
发明人： Manabu Saigo
CPC分类号： G06T5/006 , G06T3/00 , G06T7/80 , H04N5/74 , H04N5/7408 , H04N9/28 , H04N9/31 , H04N9/3102 , H04N9/3147 , H04N9/3182 , H04N9/3185 , G06T7/0018
摘要： An image processing device adapted to correct a keystone distortion of an image projected on a region where a first plane and a second plane intersect with each other at a predetermined angle includes a transformation section adapted to calculate a first coordinate to be referred to in a first coordinate transformation for correcting the keystone distortion and a second coordinate to be referred to in a second coordinate transformation for correcting the keystone distortion, a combination section adapted to generate a composite coordinate obtained by combining the first coordinate and the second coordinate calculated by the transformation section, and a correction section adapted to perform a coordinate transformation for correcting the keystone distortion using the composite coordinate generated by the combination section.
摘要翻译： 一种适于校正投影在第一平面和第二平面以预定角度彼此相交的区域上的图像的梯形失真的图像处理装置包括适于计算第一坐标的第一坐标的变换部分 用于校正梯形失真的坐标变换和用于校正梯形失真的第二坐标变换中要参考的第二坐标;适合于生成通过组合由变换部分计算出的第一坐标和第二坐标而获得的复合坐标的组合部分 以及校正部分，其适于使用由组合部分生成的复合坐标来执行用于校正梯形失真的坐标变换。
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公开(公告)号：US09361688B2
公开(公告)日：2016-06-07
申请号：US14638943
申请日：2015-03-04
CPC分类号： G06T7/0018 , G06T7/73 , G06T7/80 , G06T2207/30244 , H04N17/002 , H04W4/027
摘要： Disclosed are systems, apparatus, devices, method, computer program products, and other implementations, including a method that includes capturing an image of a scene by an image capturing unit of a device that includes at least one sensor, determining relative device orientation of the device based, at least in part, on determined location of at least one vanishing point in the captured image of the scene, and performing one or more calibration operations for the at least one sensor based, at least in part, on the determined relative device orientation.
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7.发明授权公开(公告)号：US09361687B2
公开(公告)日：2016-06-07
申请号：US13489835
申请日：2012-06-06
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/30204 , G06T2207/30244 , G06T2207/30252
摘要： An in-vehicle camera posture detecting apparatus includes a first image storing unit configured to store an image of a calibration sheet placed near the vehicle, the calibration sheet having a plurality of calibration marks, a first posture estimating unit for estimating the posture of the camera based on the first image, a second image storing unit that stores an image of the calibration sheet after movement of the vehicle, a second posture estimating unit that estimates the posture of the camera based on the second image, a sheet deviation calculating unit that calculates an amount of deviation of the calibration sheet from a predetermined position based on the estimates provided by the first and second posture estimating units, and a camera posture determining unit that determines the posture of the camera based on a posture estimated value and the calculated amount of deviation.
摘要翻译： 车载摄像机姿势检测装置包括：第一图像存储单元，被配置为存储放置在车辆附近的校准片的图像，所述校准片具有多个校准标记;第一姿势估计单元，用于估计摄像机的姿势 基于第一图像，第二图像存储单元，其在车辆移动之后存储校准片的图像;第二姿势估计单元，其基于第二图像估计相机的姿势;片材偏差计算单元，其计算 基于由第一姿态估计单元和第二姿势估计单元提供的估计值，校准片材与预定位置的偏差量;以及照相机姿势确定单元，其基于姿势估计值和计算出的姿势估计值来确定摄像机的姿势 偏差。
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公开(公告)号：US09286678B2
公开(公告)日：2016-03-15
申请号：US13338555
申请日：2011-12-28
申请人： Hongwei Zhu , Farzin Aghdasi , Greg Millar
发明人： Hongwei Zhu , Farzin Aghdasi , Greg Millar
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/10016 , G06T2207/20076 , G06T2207/30196 , G06T2207/30232 , G06T2207/30236
摘要： Disclosed are methods, systems, computer readable media and other implementations, including a method to calibrate a camera that includes capturing by the camera a frame of a scene, identifying features appearing in the captured frame, the features associated with pre-determined values representative of physical attributes of one or more objects, and determining parameters of the camera based on the identified features appearing in the captured frame and the pre-determined values associated with the identified features.
摘要翻译： 公开了方法，系统，计算机可读介质和其他实施方式，包括校准相机的方法，其包括由相机拍摄场景的帧，识别出现在所捕获的帧中的特征，与代表 一个或多个对象的物理属性，以及基于所捕获的帧中出现的所识别的特征以及与所识别的特征相关联的预定值来确定摄像机的参数。
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公开(公告)号：US09256943B2
公开(公告)日：2016-02-09
申请号：US14228236
申请日：2014-03-27
CPC分类号： G06T7/0018 , G06T7/80
摘要： A method of misalignment correction in a structured light device is provided that includes extracting features from a first captured image of a scene, wherein the first captured image is captured by an imaging sensor component of the structured light device, and wherein the first captured image includes a pattern projected into the scene by a projector component of the structured light device, matching the features of the first captured image to predetermined features of a pattern image corresponding to the projected pattern to generate a dataset of matching features, determining values of alignment correction parameters of an image alignment transformation model using the dataset of matching features, and applying the image alignment transformation model to a second captured image using the determined alignment correction parameter values.
摘要翻译： 提供了一种结构化光装置中的未对准校正方法，其包括从场景的第一拍摄图像中提取特征，其中第一拍摄图像由结构化光装置的成像传感器部件捕获，并且其中第一拍摄图像包括 通过结构化光装置的投影仪部件投影到场景中的图案，将第一拍摄图像的特征与对应于投影图案的图案图像的预定特征相匹配，以生成匹配特征的数据集，确定对准校正参数的值 使用匹配特征的数据集的图像对准变换模型，以及使用所确定的对准校正参数值将图像对准变换模型应用于第二捕获图像。
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公开(公告)号：US09153026B2
公开(公告)日：2015-10-06
申请号：US13685279
申请日：2012-11-26
申请人： Lingfei Meng , Kathrin Berkner , Sapna A. Shroff
发明人： Lingfei Meng , Kathrin Berkner , Sapna A. Shroff
CPC分类号： G06T7/0018 , G06T7/80 , G06T2207/10052 , H04N5/2254 , H04N17/002
摘要： Calibration for plenoptic imaging systems. The calibration preferably is performed automatically by a processor. In one approach, the processor accesses a plenoptic image captured by the plenoptic imaging system. The plenoptic image is analyzed to determine reference points for superpixels of the plenoptic imaging system, for example the centers of the superpixels. The reference points are used to determine a location of each superpixel relative to the detector array.
摘要翻译： 校正全光成像系统。 校准优选地由处理器自动执行。 在一种方法中，处理器访问由全光成像系统捕获的全视图。 分析全光图像以确定全光成像系统的超像素的参考点，例如超像素的中心。 参考点用于确定每个超像素相对于检测器阵列的位置。
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