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1. 发明申请

WO2011121117A1 VIRTUAL CAMERA SYSTEM 审中-公开
标题翻译：虚拟相机系统
公开(公告)号：WO2011121117A1
公开(公告)日：2011-10-06
申请号：PCT/EP2011/055114
申请日：2011-04-01
申请人： IMEC , COENE, Paul , DE GEYTER, Johan , DE GREEF, Eddy , GEELEN, Bert , MASSCHELEIN, Bart , VANMEERBEECK, Geert , VERACHTERT, Wilfried
发明人： COENE, Paul , DE GEYTER, Johan , DE GREEF, Eddy , GEELEN, Bert , MASSCHELEIN, Bart , VANMEERBEECK, Geert , VERACHTERT, Wilfried
IPC分类号： G06T15/20
CPC分类号： G06T15/205 , G06T7/194 , G06T2207/30221
摘要： A virtual camera system comprises a plurality of physical cameras and a hardware setup running software to create virtual viewpoints for the virtual camera system. The position of the physical cameras is constrained, where the main constraint is the overlap between the physical cameras. The present invention provides a method for creating a virtual viewpoint of a plurality of images captured by the plurality of cameras, the images comprising current frames and previous frames. The method comprises creating background frames by combining a set of previous frames; creating a plurality of foreground masks by performing segmentation on the plurality of current frames, the segmentation comprising separating foreground objects from background objects using the created background frames; extracting the foreground objects by AND-ing the plurality of current frames with the created plurality of foreground masks; rendering the foreground objects by using a three dimensional depth-box constrained viewpoint interpolation algorithm on the plurality of current frames, the three dimensional depth box being constructed for each foreground object by exploiting information from the created foreground masks and positioning information of the foreground objects; rendering a view-dependent background image by performing homographic transformations on the created background frames; and creating the virtual viewpoint by superimposing the rendered foreground objects on the rendered background frame.
摘要翻译：虚拟相机系统包括多个物理相机和用于为虚拟相机系统创建虚拟视点的硬件设置运行软件。物理摄像机的位置受到限制，其中主要的约束是物理摄像机之间的重叠。本发明提供一种用于创建由多个摄像机捕获的多个图像的虚拟视点的方法，所述图像包括当前帧和先前帧。该方法包括通过组合一组先前帧来创建背景帧; 通过对所述多个当前帧执行分割来创建多个前景蒙版，所述分割包括使用所创建的背景帧将前景对象与背景对象分离; 通过与所创建的多个前景蒙版对多个当前帧进行AND操作来提取前景对象; 通过在多个当前帧上使用三维深度方框约束视点插值算法来渲染前景对象，通过利用来自所创建的前景蒙版的信息和前景对象的定位信息为每个前景对象构造三维深度框; 通过对所创建的背景帧执行同形变换来渲染依赖于视图的背景图像; 以及通过将渲染的前景对象叠加在所渲染的背景帧上来创建虚拟视点。

2. 发明申请

WO2013064510A1 SPECTRAL CAMERA WITH MOSAIC OF FILTERS FOR EACH IMAGE PIXEL 审中-公开
标题翻译：与每个图像像素的滤波器的光谱相机
公开(公告)号：WO2013064510A1
公开(公告)日：2013-05-10
申请号：PCT/EP2012/071509
申请日：2012-10-30
申请人： IMEC
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Klaas
IPC分类号： G01J3/28 , G01J3/02
CPC分类号： G01J3/26 , G01J3/02 , G01J3/0208 , G01J3/0235 , G01J3/0256 , G01J3/0259 , G01J3/2823 , G01J2003/2826
摘要： A spectral camera for producing a spectral output has an objective lens (10) for producing an image, a mosaic of filters (30) for passing different bands of the optical spectrum, and a sensor array (40) arranged to detect pixels of the image at the different bands passed by the filters, wherein for each of the pixels, the sensor array has a cluster of sensor elements for detecting the different bands, and the mosaic has a corresponding cluster of filters of different bands, integrated on the sensor element so that the image can be detected simultaneously at the different bands. The filters are first order Fabry-Perot filters, which can give any desired passband to give high spectral definition. Cross talk can be reduced since there is no longer a parasitic cavity.
摘要翻译：用于产生光谱输出的光谱相机具有用于产生图像的物镜（10），用于通过光谱的不同带的滤光器（30）的马赛克;以及布置成检测图像的像素的传感器阵列（40）在滤波器通过的不同频带处，其中对于每个像素，传感器阵列具有用于检测不同频带的传感器元件群，并且马赛克具有集成在传感器元件上的不同频带的相应的滤波器簇，因此可以在不同的频带同时检测图像。滤波器是一阶法布里 - 珀罗滤波器，可以给出任何所需的通带，以提供高的频谱分辨率。可以减少串扰，因为不再有寄生腔。

3. 发明申请

WO2013064511A1 SPECTRAL CAMERA WITH INTEGRATED FILTERS AND MULTIPLE ADJACENT IMAGE COPIES PROJECTED ONTO SENSOR ARRAY 审中-公开
标题翻译：具有集成滤波器的光谱摄像机和投影到传感器阵列的多个相邻图像复制
公开(公告)号：WO2013064511A1
公开(公告)日：2013-05-10
申请号：PCT/EP2012/071510
申请日：2012-10-30
申请人： IMEC
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Klaas
IPC分类号： G01J3/28 , G01J3/02
CPC分类号： G01J3/2823 , G01J3/0208 , G01J3/0256 , G01J3/0259 , G01J2003/2826 , H04N9/045
摘要： A spectral camera for producing a spectral output has an objective lens (10) for producing an image, an optical duplicator (20), an array of filters (30) and a sensor arrays (40) arranged to detect the filtered image copies simultaneously on different parts of the sensor array. A field stop (50) defines an outline of the image copies projected on the sensor array. The filters are integrated on the sensor array, which has a planar structure without perpendicular physical barriers for preventing cross talk between each of the adjacent optical channels. The field stop enables adjacent image copies to fit together without gaps for such barriers. The integrated filters mean there is no parasitic cavity causing crosstalk between the adjacent image copies. This means there is no longer a need for barriers between adjacent projected image copies, and thus sensor area can be better utilised.
摘要翻译：用于产生光谱输出的光谱相机具有用于产生图像的物镜（10），光学复制器（20），滤光器阵列（30）和传感器阵列（40），其布置成同时检测滤波的图像拷贝传感器阵列的不同部分。场停止（50）定义投影在传感器阵列上的图像副本的轮廓。滤波器集成在传感器阵列上，该传感器阵列具有平面结构，而没有垂直的物理屏障，用于防止每个相邻光通道之间的串扰。现场停止功能使相邻的图像副本可以组合在一起，无间隙地用于这种屏障。集成滤波器意味着没有引起相邻图像副本之间串扰的寄生腔。这意味着不再需要相邻投影图像副本之间的屏障，因此可以更好地利用传感器区域。

4. 发明申请

WO2013064512A1 SPECTRAL CAMERA WITH MIRRORS FOR PROJECTING MULTIPLE ADJACENT IMAGE COPIES ONTO SENSOR ARRAY 审中-公开
标题翻译：用于将多个相邻图像复制投影到传感器阵列的光学相机
公开(公告)号：WO2013064512A1
公开(公告)日：2013-05-10
申请号：PCT/EP2012/071511
申请日：2012-10-30
申请人： IMEC
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Klaas
IPC分类号： G01J3/28 , G01J3/02
CPC分类号： H04N5/332 , G01J3/0208 , G01J3/0256 , G01J3/0259 , G01J3/2823 , G01J2003/2826 , H04N5/265 , H04N17/002
摘要： A spectral camera for producing a spectral output has an objective lens (10) for producing an image, an array of mirrors (20), an array of filters (30) for passing a different passband of the optical spectrum for different ones of the optical channels arranged so as to project multiple of the optical channels onto different parts of the same focal plane, and a sensor array (40) at the focal plane o detect the filtered image copies simultaneously. By using mirrors, there may be less optical degradation and the trade off of cost with optical quality can be better. By projecting the optical channels onto different parts of the same focal plane a single sensor or coplanar multiple sensors can to be used to detect the different optical channels simultaneously which promotes simpler alignment and manufacturing.
摘要翻译：用于产生光谱输出的光谱相机具有用于产生图像的物镜（10），反射镜阵列（20），用于通过光谱不同通带的滤光器阵列（30），用于不同的光学通道布置成将多个光通道投影到同一焦平面的不同部分上，并且在焦平面处的传感器阵列（40）同时检测滤波的图像副本。通过使用镜子，可能会有较少的光学劣化，并且与光学质量的成本的折衷可以更好。通过将光通道投影到相同焦平面的不同部分上，可以使用单个传感器或共面多个传感器来同时检测不同的光学通道，从而促进更简单的对准和制造。

5. 发明申请

WO2013064507A1 SPECTRAL CAMERA WITH OVERLAPPING SEGMENTS OF IMAGE COPIES INTERLEAVED ONTO SENSOR ARRAY 审中-公开
标题翻译：与传感器阵列交错的图像复制的重叠部分的光谱相机
公开(公告)号：WO2013064507A1
公开(公告)日：2013-05-10
申请号：PCT/EP2012/071506
申请日：2012-10-30
申请人： IMEC
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Klaas
IPC分类号： G01J3/28 , G01J3/51 , G01J3/02 , H01L27/146
CPC分类号： G01J3/2803 , G01J3/0208 , G01J3/0229 , G01J3/0235 , G01J3/0264 , G01J3/2823 , G01J3/513 , Y10T29/49826
摘要： A spectral camera has an objective lens (10), an array of lenses (25) for producing optical copies of segments of the image, an array of filters (30) for the different optical channels and having an interleaved spatial pattern and a sensor array to detect the copies of the image segments. Detected segment copies of spatially adjacent optical channels have different passbands and represent overlapping segments of the image, and detected segment copies of the same passband on spatially non-adjacent optical channels represent adjacent segments of the image which fit together. Having segments of the image copied can help enable better optical quality for a given cost. Having an interleaved pattern of the filter bands with overlapping segments enables each point of the image to be sensed at different bands to obtain the spectral output for many bands simultaneously to provide better temporal resolution.
摘要翻译：光谱相机具有物镜（10），用于产生图像的段的光学副本的透镜阵列（25），用于不同光学通道的滤光器阵列（30），并且具有交错的空间图案和传感器阵列以检测图像片段的副本。空间相邻光通道的检测段副本具有不同的通带并且表示图像的重叠段，并且在空间上不相邻的光通道上检测到相同通带的段副本表示装配在一起的图像的相邻段。复制图像的片段有助于为给定成本提供更好的光学质量。具有重叠片段的滤波器带的交错图案使得能够在不同频带处感测图像的每个点，以同时获得许多频带的频谱输出以提供更好的时间分辨率。

6. 发明公开

EP2776798A1 SPECTRAL CAMERA WITH INTEGRATED FILTERS AND MULTIPLE ADJACENT IMAGE COPIES PROJECTED ONTO SENSOR ARRAY 有权转让
标题翻译：具有集成滤波器和邻近几个和阵列投影图像副本光谱相机
公开(公告)号：EP2776798A1
公开(公告)日：2014-09-17
申请号：EP12788154.8
申请日：2012-10-30
申请人： IMEC
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Klaas
IPC分类号： G01J3/28 , G01J3/02
CPC分类号： G01J3/2823 , G01J3/0208 , G01J3/0256 , G01J3/0259 , G01J2003/2826 , H04N9/045
摘要： A spectral camera for producing a spectral output is disclosed. The spectral camera has an objective lens for producing an image, an optical duplicator, an array of filters, and a sensor array arranged to detect the filtered image copies simultaneously on different parts of the sensor array. Further, a field stop defines an outline of the image copies projected on the sensor array. The filters are integrated on the sensor array, which has a planar structure without perpendicular physical barriers for preventing cross talk between each of the adjacent optical channels. The field stop enables adjacent image copies to fit together without gaps for such barriers. The integrated filters mean there is no parasitic cavity causing crosstalk between the adjacent image copies. This means there is no longer a need for barriers between adjacent projected image copies, and thus sensor area can be better utilized.
摘要翻译：的光谱相机用于产生光谱输出被游离缺失盘。光谱相机具有物镜用于产生图像以向光学复印机，将过滤器阵列，和一个传感器阵列设置为同时检测在传感器阵列的不同部分中的滤波后的图像的副本。此外，视场光阑定义概述投影在传感器阵列上的图像的副本。该过滤器被集成在传感器阵列，其具有无需用于防止各光学相邻信道之间的串扰垂直物理屏障的平面结构上。视场光阑使邻近的图像拷贝到结合在一起无间隙寻求障碍。集成滤波器意味着没有寄生腔相邻的图像副本之间出现串扰。这意味着不再需要邻近投影图像副本之间的障碍，因而传感器面积可以得到更好的利用。

7. 发明授权

EP2776799B1 SPECTRAL CAMERA WITH MIRRORS FOR PROJECTING MULTIPLE ADJACENT IMAGE COPIES ONTO SENSOR ARRAY 有权转让
公开(公告)号：EP2776799B1
公开(公告)日：2019-05-22
申请号：EP12788155.5
申请日：2012-10-30
申请人： IMEC VZW
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Nicolaas
IPC分类号： G01J3/28 , G01J3/02

8. 发明公开

EP3450938A1 AN IMAGE SENSOR AND AN IMAGING APPARATUS 有权
公开(公告)号：EP3450938A1
公开(公告)日：2019-03-06
申请号：EP17188601.3
申请日：2017-08-30
申请人： IMEC vzw
发明人： GEELEN, Bert
IPC分类号： G01J3/26 , G01J3/28 , G01J3/02 , G02B5/28 , H01L27/146
摘要： An image sensor for acquiring an image of an object comprises: an array (102) of photo-sensitive areas (104) formed on a substrate, wherein each photo-sensitive area (104) is a continuous area within the substrate; an array of interference filters (106), wherein each interference filter (106) is configured to selectively transmit a wavelength band, wherein the array of interference filters (106) is monolithically integrated on the array (102) of photo-sensitive areas (104); and wherein a plurality of interference filters (106a-d) is associated with a single photo-sensitive area (104a), wherein each interference filter (106a-d) in the plurality of interference filters (106a-d) is configured to selectively transmit a unique wavelength band to the photo-sensitive area (104a) and each interference filter (106a-d) in the plurality of interference filters (106a-d) is associated with a unique portion of the photo-sensitive area (104a).

9. 发明公开

EP3348974A1 AN IMAGE SENSOR, AN IMAGING DEVICE, AN IMAGING SYSTEM AND A METHOD FOR SPECTRAL IMAGING 审中-公开
公开(公告)号：EP3348974A1
公开(公告)日：2018-07-18
申请号：EP17151830.1
申请日：2017-01-17
申请人： IMEC vzw
发明人： TACK, Nicolaas , LAMBRECHTS, Andy , JAYAPALA, Murali , GEELEN, Bert
IPC分类号： G01J3/36 , G01J3/28
CPC分类号： H01L27/14621 , G01J3/2823 , G01J3/36 , H04N5/2259 , H04N5/2353 , H04N5/332 , H04N5/3696 , H04N13/218
摘要： The present invention relates to an image sensor for spectral imaging, said image sensor (100) comprising: an array (102) of light-detecting elements (104); and at least one filter arrangement (108) being arranged on the array (102) for defining a plurality of separate sensor blocks (106) comprising at least: a first mosaic block (106a) associated with a first mosaic filter (1 08a) and comprising a first plurality of rows of the array (102) to acquire a first sub-image in two spatial dimensions, wherein image points in the first sub-image has a spectral resolution defined by unique wavelength bands detected in sub-groups of the light-detecting elements; and a second block (1 06b) comprising a second plurality of rows of the array (102) to acquire a second sub-image in two spatial dimensions wherein each image point in the second sub-image corresponds to a single light-detecting element (104).

10. 发明授权

EP2776797B1 SPECTRAL CAMERA WITH OVERLAPPING SEGMENTS OF IMAGE COPIES INTERLEAVED ONTO SENSOR ARRAY 有权转让
公开(公告)号：EP2776797B1
公开(公告)日：2018-12-05
申请号：EP12788152.2
申请日：2012-10-30
申请人： IMEC VZW
发明人： GEELEN, Bert , LAMBRECHTS, Andy , TACK, Nicolaas
IPC分类号： G01J3/28 , G01J3/51 , G01J3/02 , H01L27/146
CPC分类号： G01J3/2803 , G01J3/0208 , G01J3/0229 , G01J3/0235 , G01J3/0264 , G01J3/2823 , G01J3/513 , Y10T29/49826
摘要： A spectral camera having an objective lens, an array of lenses for producing optical copies of segments of the image, an array of filters for the different optical channels and having an interleaved spatial pattern, and a sensor array to detect the copies of the image segments is disclosed. Further, detected segment copies of spatially adjacent optical channels have different passbands and represent overlapping segments of the image, and detected segment copies of the same passband on spatially non-adjacent optical channels represent adjacent segments of the image which fit together. Having segments of the image copied can help enable better optical quality for a given cost. Having an interleaved pattern of the filter bands with overlapping segments enables each point of the image to be sensed at different bands to obtain the spectral output for many bands simultaneously to provide better temporal resolution.

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