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21. 发明公开

EP2754297A1 METHODS AND APPARATUS FOR IMPROVED CROPPING OF A STEREOSCOPIC IMAGE PAIR 有权
标题翻译： VERFAHREN UND VORRICHTUNGFÜRVERBESSERTES BESCHNEIDEN EINES STEREOSKOPISCHEN BILDPAARS
公开(公告)号：EP2754297A1
公开(公告)日：2014-07-16
申请号：EP12766757.4
申请日：2012-09-06
申请人： Qualcomm Incorporated
发明人： RAMACHANDRA, Vikas , ATANASSOV, Kalin, Mitkov , GOMA, Sergiu R.
IPC分类号： H04N13/00
CPC分类号： H04N13/122 , H04N13/128 , H04N13/144
摘要： Described herein are methods and apparatus to adjust the convergence point of a stereoscopic image pair captured by an imaging device. In one method, a first image and a second image of a stereoscopic image pair are provided, and then shifting or cropping of the first image is performed to align the first and second image. This shifting or cropping is performed while preserving the second image. The method then includes determining a target horizontal image disparity based on a desired convergence point of the stereoscopic image pair and when the target horizontal disparity is greater than a predetermined maximum, the cropping of an outside dimension of the first image is limited. In some implementations it is limited to the predetermined maximum.
摘要翻译：这里描述了调整由成像装置捕获的立体图像对的会聚点的方法和装置。在一种方法中，提供立体图像对的第一图像和第二图像，然后执行第一图像的移动或裁剪以使第一和第二图像对齐。在保持第二图像的同时进行移动或裁切。该方法然后包括基于立体图像对的期望收敛点来确定目标水平图像视差，并且当目标水平视差大于预定最大值时，限制第一图像的外部尺寸的裁剪。在一些实施方式中，它被限制到预定的最大值。

22. 发明公开

EP2604032A1 AUTOFOCUS FOR STEREOSCOPIC CAMERA 审中-公开
标题翻译： AUTOFOKUSFÜREINE STEREOSKOPISCHE KAMERA
公开(公告)号：EP2604032A1
公开(公告)日：2013-06-19
申请号：EP11746403.2
申请日：2011-08-09
申请人： Qualcomm Incorporated
发明人： ATANASSOV, Kalin, M. , GOMA, Sergiu, R. , RAMACHANDRA, Vikas
IPC分类号： H04N5/232 , H04N13/02 , H04N13/00
CPC分类号： H04N13/239 , G06T7/593 , G06T2207/10012 , H04N13/296 , H04N2013/0081
摘要： Present embodiments contemplate systems, apparatus, and methods to determine an appropriate focal depth for a sensor based upon a pair of stereoscopic images. Particularly, certain of the embodiments contemplate determining keypoints for each image, identifying correlations between the keypoints, and deriving object distances from the correlations. These distances may then be used to select a proper focal depth for one or more sensors.
摘要翻译：现有实施例考虑了基于一对立体图像来确定传感器的适当焦点深度的系统，装置和方法。特别地，某些实施例考虑确定每个图像的关键点，识别关键点之间的相关性，以及从相关性导出对象距离。然后可以使用这些距离来为一个或多个传感器选择合适的焦点深度。

23. 发明公开

EP3262495A1 TOUCH SCREEN PANEL USING DIGITALLY ENCODED LIGHT 审中-公开
标题翻译：触摸屏幕使用数字编码的灯
公开(公告)号：EP3262495A1
公开(公告)日：2018-01-03
申请号：EP16704083.1
申请日：2016-01-13
申请人： Qualcomm Incorporated
发明人： OSBORNE, Thomas Wesley , RAMACHANDRA, Vikas
IPC分类号： G06F3/042 , G06F3/041
CPC分类号： G06F3/0421 , G06F3/0416 , G06F3/0428 , G06F2203/04109
摘要： Techniques are described for determining a contact location on a touch screen panel. The techniques transmit an optical signal that includes digital bits through the touch screen, and determine for which digital bits the optical power level reduced. Based on the determined digital bits, the techniques determine the contact location on the touch screen panel.

24. 发明公开

EP2856077A1 RECEPTION OF AFFINE-INVARIANT SPATIAL MASK FOR ACTIVE DEPTH SENSING 有权
标题翻译：接受有效深度感知的仿射不变空间掩模
公开(公告)号：EP2856077A1
公开(公告)日：2015-04-08
申请号：EP13721835.0
申请日：2013-04-18
申请人： Qualcomm Incorporated
发明人： ATANASSOV, Kalin Mitkov , NASH, James Wilson , RAMACHANDRA, Vikas , GOMA, Sergiu Radu
IPC分类号： G01B11/25 , G06T7/00 , H04N5/14
CPC分类号： G01B11/254 , G01B11/2513 , G01B11/2545 , G06T5/001 , G06T7/521 , H04B1/12
摘要： A method operational on a receiver device for decoding a codeword is provided. At least a portion of a composite code mask is obtained, via a receiver sensor, and projected on the surface of a target object. The composite code mask may be defined by a code layer and a carrier layer. A code layer of uniquely identifiable spatially-coded codewords may be defined by a plurality of symbols. A carrier layer may be independently ascertainable and distinct from the code layer and may include a plurality of reference objects that are robust to distortion upon projection. At least one of the code layer and carrier layer may have been pre-shaped by a synthetic point spread function prior to projection. The code layer may be adjusted, at a processing circuit, for distortion based on the reference objects within the portion of the composite code mask.
摘要翻译：提供了在接收机设备上操作用于解码码字的方法。通过接收器传感器获得复合代码掩码的至少一部分，并将其投影到目标对象的表面上。复合码掩码可以由代码层和载体层定义。由唯一可识别的空间编码码字的码层可以由多个码元定义。载体层可以独立于代码层而独立地确定并且不同，并且可以包括在投影时对失真具有鲁棒性的多个参考对象。代码层和载体层中的至少一个可以在投影之前已经通过合成点扩散函数预先成形。可以在处理电路处根据复合代码掩码的该部分内的参考对象来调整代码层的失真。

25. 发明公开

EP2856076A1 TRANSMISSION OF AFFINE-INVARIANT SPATIAL MASK FOR ACTIVE DEPTH SENSING 有权
标题翻译： ÜBERTRAGUNGVON AFFININVARIANTENRÄUMLICHENMASKENFÜRAKTIV TIEFENMESSUNGEN
公开(公告)号：EP2856076A1
公开(公告)日：2015-04-08
申请号：EP13721831.9
申请日：2013-04-18
申请人： Qualcomm Incorporated
发明人： ATANASSOV, Kalin Mitkov , NASH, James Wilson , RAMACHANDRA, Vikas , GOMA, Sergiu Radu
IPC分类号： G01B11/25 , G06T7/00 , H04N5/14
摘要： A method operational on a transmitter device is provided for projecting a composite code mask. A composite code mask on a tangible medium is obtained, where the composite code mask includes a code layer combined with a carrier layer. The code layer may include uniquely identifiable spatially-coded codewords defined by a plurality of symbols. The carrier layer may be independently ascertainable and distinct from the code layer and includes a plurality of reference objects that are robust to distortion upon projection. At least one of the code layer and carrier layer may be pre-shaped by a synthetic point spread function prior to projection. At least a portion of the composite code mask is projected, by the transmitter device, onto a target object to help a receiver ascertain depth information for the target object with a single projection of the composite code mask.
摘要翻译：提供在发射机设备上操作的方法用于投影复合码掩码。获得有形介质上的复合码掩码，其中复合码掩码包括与载体层组合的码层。代码层可以包括由多个符号定义的唯一可识别的空间编码码字。载体层可以独立地确定并且不同于代码层，并且包括多个参考对象，其在投影时对于失真是鲁棒的。代码层和载体层中的至少一个可以在投影之前通过合成点扩散函数预先成形。复合代码掩码的至少一部分由发射机设备投射到目标对象上，以帮助接收机通过复合码掩码的单个投影来确定目标对象的深度信息。

26. 发明公开

EP2732433A2 METHOD AND APPARATUS FOR CALIBRATING AN IMAGING DEVICE 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZUR KALIBRIERUNG EINER BILDGEBUNGSVORRICHTUNG
公开(公告)号：EP2732433A2
公开(公告)日：2014-05-21
申请号：EP12727573.3
申请日：2012-06-08
申请人： Qualcomm Incorporated
发明人： ATANASSOV, Kalin Mitkov , GOMA, Sergiu R. , RAMACHANDRA, Vikas
IPC分类号： G06T7/00 , H04N13/02
CPC分类号： G06T7/85 , H04N13/239 , H04N13/246
摘要： Described are methods and apparatus for adjusting images of a stereoscopic image pair based on keypoint matches. The quality of the key point matches is first evaluated to determine whether the quality exceeds a keypoint quality threshold. If the quality level of the keypoint matches exceeds the threshold, the vertical disparity between the images of the stereoscopic image pair can be evaluated based on vertical disparity vectors between the keypoint matches. If the vertical disparity is below a threshold, no adjustment of the stereoscopic image pair may be performed. If the vertical disparity is above the threshold, an affine correction may compensate for pitch, roll, and scale differences between the images. A projective correction may compensate for yaw differences. The vertical disparity between the two images is then evaluated after the corrections to determine if additional adjustment should be performed.
摘要翻译：描述了基于关键点匹配来调整立体图像对的图像的方法和装置。首先评估关键点匹配的质量，以确定质量是否超过关键点质量阈值。如果关键点匹配的质量级别超过阈值，则可以基于关键点匹配之间的垂直视差向量来评估立体图像对的图像之间的垂直差异。如果垂直视差低于阈值，则不能执行立体图像对的调整。如果垂直视差高于阈值，则仿射校正可以补偿图像之间的俯仰，滚动和缩放差异。投影校正可以补偿偏航差异。然后在校正后评估两个图像之间的垂直差异，以确定是否应执行附加调整。

27. 发明公开

EP3582488A1 AUTOFOCUS FOR STEREOSCOPIC CAMERA 有权
公开(公告)号：EP3582488A1
公开(公告)日：2019-12-18
申请号：EP19190471.3
申请日：2011-08-09
申请人： QUALCOMM Incorporated
发明人： ATANASSOV, Kalin M. , GOMA, Sergiu R. , RAMACHANDRA, Vikas
IPC分类号： H04N5/232 , H04N13/00 , G06T7/593 , H04N13/239 , H04N13/296
摘要： Present embodiments contemplate systems, apparatus, and methods to determine an appropriate focal depth for a sensor based upon a pair of stereoscopic images. Particularly, certain of the embodiments contemplate determining keypoints for each image, identifying correlations between the keypoints, and deriving object distances from the correlations. These distances may then be used to select a proper focal depth for one or more sensors.

28. 发明授权

EP3033733B1 STEREO YAW CORRECTION USING AUTOFOCUS FEEDBACK 有权
公开(公告)号：EP3033733B1
公开(公告)日：2018-09-19
申请号：EP14761438.2
申请日：2014-08-05
申请人： Qualcomm Incorporated
发明人： RAMACHANDRA, Vikas , ATANASSOV, Kalin Mitkov , VELARDE, Ruben Manuel
IPC分类号： G06T7/00 , H04N13/00 , G06T7/80 , G06T7/571
CPC分类号： H04N13/246 , G06T7/571 , G06T7/85 , H04N13/239
摘要： Systems and methods for correcting stereo yaw of a stereoscopic image sensor pair using autofocus feedback are disclosed. A stereo depth of an object in an image is estimated from the disparity of the object between the images captured by each sensor of the image sensor pair. An autofocus depth to the object is found from the autofocus lens position. If the difference between the stereo depth and the autofocus depth is non zero, one of the images is warped and the disparity is recalculated until the stereo depth and the autofocus depth to the object is substantially the same.

29. 发明授权

EP2754297B1 METHODS AND APPARATUS FOR IMPROVED CROPPING OF A STEREOSCOPIC IMAGE PAIR 有权
标题翻译：用于改善立体图像对的收获的方法和设备
公开(公告)号：EP2754297B1
公开(公告)日：2017-08-30
申请号：EP12766757.4
申请日：2012-09-06
申请人： Qualcomm Incorporated
发明人： RAMACHANDRA, Vikas , ATANASSOV, Kalin, Mitkov , GOMA, Sergiu R.
IPC分类号： H04N13/00
CPC分类号： H04N13/122 , H04N13/128 , H04N13/144
摘要： Described herein are methods and apparatus to adjust the convergence point of a stereoscopic image pair captured by an imaging device. In one method, a first image and a second image of a stereoscopic image pair are provided, and then shifting or cropping of the first image is performed to align the first and second image. This shifting or cropping is performed while preserving the second image. The method then includes determining a target horizontal image disparity based on a desired convergence point of the stereoscopic image pair and when the target horizontal disparity is greater than a predetermined maximum, the cropping of an outside dimension of the first image is limited. In some implementations it is limited to the predetermined maximum.
摘要翻译：这里描述的是调整由成像设备捕获的立体图像对的会聚点的方法和设备。在一种方法中，提供立体图像对的第一图像和第二图像，然后执行第一图像的移位或裁剪以对齐第一图像和第二图像。在保留第二图像的同时执行这种移位或裁剪。该方法然后包括基于立体图像对的期望收敛点来确定目标水平图像视差，并且当目标水平视差大于预定最大值时，限制第一图像的外部尺寸的裁剪。在一些实现中，它被限制在预定的最大值。

30. 发明授权

EP2856077B1 RECEPTION OF AFFINE-INVARIANT SPATIAL MASK FOR ACTIVE DEPTH SENSING 有权
标题翻译： AFFININVARIANTEN MASK空间实现主动深度测量TRANSFER
公开(公告)号：EP2856077B1
公开(公告)日：2017-03-01
申请号：EP13721835.0
申请日：2013-04-18
申请人： Qualcomm Incorporated
发明人： ATANASSOV, Kalin Mitkov , NASH, James Wilson , RAMACHANDRA, Vikas , GOMA, Sergiu Radu
IPC分类号： G01B11/25 , G06T7/00
CPC分类号： G01B11/254 , G01B11/2513 , G01B11/2545 , G06T5/001 , G06T7/521 , H04B1/12

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