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公开(公告)号:US09706116B2
公开(公告)日:2017-07-11
申请号:US14069242
申请日:2013-10-31
申请人: Lingfei Meng , Kathrin Berkner
发明人: Lingfei Meng , Kathrin Berkner
CPC分类号: H04N5/23232 , G06T3/4053 , G06T5/50 , G06T2207/10052 , H04N5/2254 , H04N5/2258 , H04N9/045 , H04N9/097 , H04N13/282
摘要: Color plenoptic images captured by a spectrally-coded plenoptic imaging system are combined with higher resolution higher resolution images captured by a conventional imaging system, resulting in color images with higher resolution than those captured by the plenoptic imaging system alone.
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公开(公告)号:US20170127928A1
公开(公告)日:2017-05-11
申请号:US15413133
申请日:2017-01-23
申请人: Kathrin Berkner , Sapna A. Shroff , Lingfei Meng , Nikhil Balram
发明人: Kathrin Berkner , Sapna A. Shroff , Lingfei Meng , Nikhil Balram
CPC分类号: A61B1/227 , A61B1/00009 , A61B1/00186 , A61B5/0062 , A61B5/0082 , A61B5/12
摘要: A plenoptic otoscope enables three-dimensional and/or spectral imaging of the inside of the ear to assist in improved diagnosis of inflammations and infections. The plenoptic otoscope includes a primary imaging system and a plenoptic sensor. The primary imaging system includes an otoscope objective and relay optics, which cooperate to form an image of an inside of an ear at an intermediate image plane. The plenoptic sensor includes a microimaging array positioned at the intermediate image plane and a sensor array positioned at a conjugate of the pupil plane. An optional filter module may be positioned at the pupil plane or one of its conjugates to facilitate three-dimensional and/or spectral imaging.
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公开(公告)号:US20150092071A1
公开(公告)日:2015-04-02
申请号:US14040653
申请日:2013-09-28
申请人: Lingfei Meng , Kathrin Berkner , Ivana Tosic
发明人: Lingfei Meng , Kathrin Berkner , Ivana Tosic
CPC分类号: H04N9/045 , H04N5/2254
摘要: A method for designing a color filter module used in a plenoptic XYZ imaging system. In one approach, the color filter module is spatially partitioned into filter cells, and the spatial partition is designed by considering data captured at the sensor in light of variations in ΔE.
摘要翻译: 一种设计用于全光XYZ成像系统的滤色片模块的方法。 在一种方法中,滤色器模块在空间上划分成过滤器单元,并且通过考虑根据&D; E的变化在传感器处捕获的数据来设计空间分区。
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公开(公告)号:US08761534B2
公开(公告)日:2014-06-24
申请号:US13398813
申请日:2012-02-16
申请人: Sapna A. Shroff , Kathrin Berkner , Lingfei Meng
发明人: Sapna A. Shroff , Kathrin Berkner , Lingfei Meng
IPC分类号: G06K9/40
CPC分类号: G06T5/003 , G02B3/0043 , G02B3/0056 , G02B7/38 , G06T1/0007 , H04N5/23229
摘要: The spatial resolution of captured plenoptic images is enhanced. In one aspect, the plenoptic imaging process is modeled by a pupil image function (PIF), and a PIF inversion process is applied to the captured plenoptic image to produce a better resolution estimate of the object.
摘要翻译: 捕获的全景图像的空间分辨率得到提高。 在一个方面,全光成像过程由瞳孔图像功能(PIF)建模,并且将PIF反演过程应用于所捕获的全光图像以产生对象的更好的分辨率估计。
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公开(公告)号:US20140146184A1
公开(公告)日:2014-05-29
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
IPC分类号: G06T7/00
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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公开(公告)号:US10660512B2
公开(公告)日:2020-05-26
申请号:US15413133
申请日:2017-01-23
申请人: Kathrin Berkner , Sapna A. Shroff , Lingfei Meng , Nikhil Balram
发明人: Kathrin Berkner , Sapna A. Shroff , Lingfei Meng , Nikhil Balram
摘要: A plenoptic otoscope enables three-dimensional and/or spectral imaging of the inside of the ear to assist in improved diagnosis of inflammations and infections. The plenoptic otoscope includes a primary imaging system and a plenoptic sensor. The primary imaging system includes an otoscope objective and relay optics, which cooperate to form an image of an inside of an ear at an intermediate image plane. The plenoptic sensor includes a microimaging array positioned at the intermediate image plane and a sensor array positioned at a conjugate of the pupil plane. An optional filter module may be positioned at the pupil plane or one of its conjugates to facilitate three-dimensional and/or spectral imaging.
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公开(公告)号:US09544583B2
公开(公告)日:2017-01-10
申请号:US14594019
申请日:2015-01-09
申请人: Lingfei Meng , Liyang Lu , Noah Bedard , Kathrin Berkner
发明人: Lingfei Meng , Liyang Lu , Noah Bedard , Kathrin Berkner
CPC分类号: H04N17/002 , G06T7/80 , G06T2207/10052
摘要: A collimated object is adjustable to produce collimated light propagating along different propagation directions. The plenoptic imaging system under calibration captures plenoptic images of the object adjusted to different propagation directions. The captured plenoptic images includes superpixels, each of which includes subpixels. Each subpixel captures light from a corresponding light field viewing direction. Based on the captured plenoptic images, a calibration module calculates which propagation directions map to which subpixels. The mapping defines the light field viewing directions for the subpixels. This can be used to improve processing of plenoptic images captured by the plenoptic imaging system.
摘要翻译: 准直物体是可调节的,以产生沿不同传播方向传播的准直光。 校准下的全光成像系统捕获被调整到不同传播方向的物体的全光图像。 捕获的全息图像包括超像素,每个像素包括子像素。 每个子像素捕获来自对应的光场观察方向的光。 基于捕获的全光图像,校准模块计算哪些传播方向映射到哪些子像素。 该映射定义子像素的光场观察方向。 这可以用于改善由全景成像系统捕获的全景图像的处理。
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公开(公告)号:US20160205394A1
公开(公告)日:2016-07-14
申请号:US14594019
申请日:2015-01-09
申请人: Lingfei Meng , Liyang Lu , Noah Bedard , Kathrin Berkner
发明人: Lingfei Meng , Liyang Lu , Noah Bedard , Kathrin Berkner
CPC分类号: H04N17/002 , G06T7/80 , G06T2207/10052
摘要: A collimated object is adjustable to produce collimated light propagating along different propagation directions. The plenoptic imaging system under calibration captures plenoptic images of the object adjusted to different propagation directions. The captured plenoptic images includes superpixels, each of which includes subpixels. Each subpixel captures light from a corresponding light field viewing direction. Based on the captured plenoptic images, a calibration module calculates which propagation directions map to which subpixels. The mapping defines the light field viewing directions for the subpixels. This can be used to improve processing of plenoptic images captured by the plenoptic imaging system.
摘要翻译: 准直物体是可调节的,以产生沿不同传播方向传播的准直光。 校准下的全光成像系统捕获被调整到不同传播方向的物体的全光图像。 捕获的全息图像包括超像素,每个像素包括子像素。 每个子像素捕获来自对应的光场观察方向的光。 基于捕获的全光图像,校准模块计算哪些传播方向映射到哪些子像素。 该映射定义子像素的光场观察方向。 这可以用于改善由全景成像系统捕获的全景图像的处理。
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公开(公告)号:US20140241615A1
公开(公告)日:2014-08-28
申请号:US14225397
申请日:2014-03-25
申请人: Sapna A. Shroff , Kathrin Berkner , Lingfei Meng
发明人: Sapna A. Shroff , Kathrin Berkner , Lingfei Meng
IPC分类号: G06T5/00
CPC分类号: G06T5/003 , G02B3/0043 , G02B3/0056 , G02B7/38 , G06T1/0007 , H04N5/23229
摘要: The spatial resolution of captured plenoptic images is enhanced. In one aspect, the plenoptic imaging process is modeled by a pupil image function (PIF), and a PIF inversion process is applied to the captured plenoptic image to produce a better resolution estimate of the object.
摘要翻译: 捕获的全景图像的空间分辨率得到提高。 在一个方面,全光成像过程由瞳孔图像功能(PIF)建模,并且将PIF反演过程应用于所捕获的全光图像以产生对象的更好的分辨率估计。
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公开(公告)号:US09797716B2
公开(公告)日:2017-10-24
申请号:US14594017
申请日:2015-01-09
申请人: Lingfei Meng , Liyang Lu , Kathrin Berkner , Ivana Tosic
发明人: Lingfei Meng , Liyang Lu , Kathrin Berkner , Ivana Tosic
CPC分类号: G01B11/25 , G01B11/24 , G01B11/303 , G06T7/557 , G06T7/60 , H04N5/2256 , H04N13/232
摘要: A plenoptic camera captures a plenoptic image of an object illuminated by a point source (preferably, collimated illumination). The plenoptic image is a sampling of the four-dimensional light field reflected from the object. The plenoptic image is made up of superpixels, each of which is made up of subpixels. Each superpixel captures light from a certain region of the object (i.e., a range of x,y spatial locations) and the subpixels within a superpixel capture light propagating within a certain range of directions (i.e., a range of u,v spatial directions). Accordingly, optical properties estimation, surface normal reconstruction, depth estimation, and three-dimensional rendering can be provided by processing only a single plenoptic image. In one approach, the plenoptic image is used to estimate the bidirectional reflectance distribution function (BRDF) of the object surface.
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