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1. 发明申请

US20090080772A1 Radiometric Calibration from a Single Image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US20090080772A1
公开(公告)日：2009-03-26
申请号：US12327680
申请日：2008-12-03
申请人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的不均匀直方图映射到校准强度的均匀分布的逆响应函数。

2. 发明授权

US07986830B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07986830B2
公开(公告)日：2011-07-26
申请号：US12327680
申请日：2008-12-03
申请人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的非均匀直方图映射到校准强度的均匀分布的反向响应函数。

3. 发明授权

US07463769B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07463769B2
公开(公告)日：2008-12-09
申请号：US11156988
申请日：2005-06-20
申请人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的不均匀直方图映射到校准强度的均匀分布的逆响应函数。

4. 发明授权

US07450754B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07450754B2
公开(公告)日：2008-11-11
申请号：US10809167
申请日：2004-03-23
申请人： Stephen S. Lin , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： A radiometric calibration system finds an inverse response function of a camera from a single digital image of a scene in which the actual colors of the scene are not known a priori. The system analyzes pixels of the image that correspond to an “edge” between two colors of the scene. These “edge” pixels represent a blended color formed from these two “component” colors, as measured by the camera. The system determines an inverse response function at least in part by: (a) finding suitable edge pixels; and (b) determining a function that maps the measured blended colors of edge pixels and their measured component colors into linear distributions. Reference data that includes predetermined inverse response functions of known cameras can be used in determining an inverse response function via a Bayesian Estimation.
摘要翻译：辐射校准系统从场景的实际颜色先前不知道的场景的单个数字图像中发现摄像机的反向响应功能。该系统分析对应于场景两种颜色之间的“边缘”的图像像素。这些“边缘”像素表示由相机测量的由这两个“分量”颜色形成的混合色。系统至少部分地通过以下方式确定反应响应函数：（a）找到合适的边缘像素; 和（b）确定将所测量的边缘像素的混合颜色及其测量的分量颜色映射成线性分布的函数。包括已知摄像机的预定反向响应功能的参考数据可以用于经由贝叶斯估计来确定反向响应函数。

5. 发明申请

US20060008141A1 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US20060008141A1
公开(公告)日：2006-01-12
申请号：US11156988
申请日：2005-06-20
申请人： Stephen Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的不均匀直方图映射到校准强度的均匀分布的逆响应函数。

6. 发明申请

US20050213813A1 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US20050213813A1
公开(公告)日：2005-09-29
申请号：US10809167
申请日：2004-03-23
申请人： Stephen Lin , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen Lin , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G01J3/46 , G06T1/00 , G06T7/00 , G06T7/40 , H04N1/46 , H04N1/60 , G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： A radiometric calibration system finds an inverse response function of a camera from a single digital image of a scene in which the actual colors of the scene are not known a priori. The system analyzes pixels of the image that correspond to an “edge” between two colors of the scene. These “edge” pixels represent a blended color formed from these two “component” colors, as measured by the camera. The system determines an inverse response function at least in part by: (a) finding suitable edge pixels; and (b) determining a function that maps the measured blended colors of edge pixels and their measured component colors into linear distributions. Reference data that includes predetermined inverse response functions of known cameras can be used in determining an inverse response function via a Bayesian Estimation.
摘要翻译：辐射校准系统从场景的实际颜色先前不知道的场景的单个数字图像中发现摄像机的反向响应功能。该系统分析对应于场景两种颜色之间的“边缘”的图像像素。这些“边缘”像素表示由相机测量的由这两个“分量”颜色形成的混合色。系统至少部分地通过以下方式确定反应响应函数：（a）找到合适的边缘像素; 和（b）确定将所测量的边缘像素的混合颜色及其测量的分量颜色映射成线性分布的函数。包括已知摄像机的预定反向响应功能的参考数据可以用于经由贝叶斯估计来确定反向响应函数。

7. 发明授权

US09100514B2 Methods and systems for coded rolling shutter 有权
标题翻译：编码滚动快门的方法和系统
公开(公告)号：US09100514B2
公开(公告)日：2015-08-04
申请号：US13504905
申请日：2010-10-28
申请人： Jinwei Gu , Yasunobu Hitomi , Tomoo Mitsunaga , Shree K. Nayar
发明人： Jinwei Gu , Yasunobu Hitomi , Tomoo Mitsunaga , Shree K. Nayar
IPC分类号： H04N3/14 , H04N5/335 , H04N7/00 , H04N5/232 , H04N5/235 , H04N5/353 , H04N5/355 , G06T5/00
CPC分类号： H04N7/002 , G06T5/003 , G06T2207/20201 , H04N5/2329 , H04N5/2353 , H04N5/3532 , H04N5/3535 , H04N5/35554 , H04N5/374 , H04N5/378 , H04N7/00
摘要： Methods and systems for coded rolling shutter are provided. In accordance with some embodiments, methods and system are provided that control the readout timing and exposure length for each row of a pixel array in an image sensor, thereby flexibly sampling the three-dimensional space-time value of a scene and capturing sub-images that effectively encode motion and dynamic range information within a single captured image.
摘要翻译：提供编码滚动快门的方法和系统。根据一些实施例，提供了控制图像传感器中的像素阵列的每行的读出定时和曝光长度的方法和系统，从而灵活地对场景的三维时空值进行采样并捕获子图像其在单个捕获图像内有效地编码运动和动态范围信息。

8. 发明授权

US08508801B2 Using reflectance properties 有权
标题翻译：使用反射性能
公开(公告)号：US08508801B2
公开(公告)日：2013-08-13
申请号：US12323693
申请日：2008-11-26
申请人： Wojciech Matusik , Jinwei Gu
发明人： Wojciech Matusik , Jinwei Gu
IPC分类号： H04N1/40
CPC分类号： G02F1/19 , B41J2/2132 , G02F1/133553 , G06K15/02 , G06K15/027 , G06K2215/0082 , G06K2215/0094 , H04N1/2307 , H04N1/2323 , H04N1/2338 , H04N1/2392 , H04N1/54
摘要： A method includes applying at least one medium to a substrate with a printing device to form a symbol. The perceived reflectance properties of the symbol are provided by an amount of the at least one medium applied to the substrate.
摘要翻译：一种方法包括用印刷装置将至少一种介质施加到基底上以形成符号。识别的符号的反射特性由施加到基底的至少一种介质的量提供。

9. 发明申请

US20140192235A1 SYSTEMS, METHODS, AND MEDIA FOR RECONSTRUCTING A SPACE-TIME VOLUME FROM A CODED IMAGE 审中-公开
标题翻译：用于从编码图像重新构建空间时间量的系统，方法和媒体
公开(公告)号：US20140192235A1
公开(公告)日：2014-07-10
申请号：US14001139
申请日：2012-02-27
申请人： Yasunobu Hitomi , Jinwei Gu , Mohit Gupta , Tomoo Mitsunaga , Shree K. Nayar
发明人： Yasunobu Hitomi , Jinwei Gu , Mohit Gupta , Tomoo Mitsunaga , Shree K. Nayar
IPC分类号： G06T5/00
CPC分类号： H04N13/106 , G06T1/0007 , G06T5/002 , G06T7/50 , G06T2200/21 , H04N5/2353 , H04N5/341 , H04N5/3535 , H04N13/128 , H04N13/296 , H04N13/388
摘要： Systems, methods, and media for reconstructing a space-time volume from a coded image are provided. In accordance with some embodiments, systems for reconstructing a space-time volume from a coded image are provided, the systems comprising: an image sensor that outputs image data; and at least one processor that: causes a projection of the space-time volume to be captured in a single image of the image data in accordance with a coded shutter function; receives the image data; and performs a reconstruction process on the image data to provide a space-time volume corresponding to the image data.
摘要翻译：提供了用于从编码图像重构空时卷的系统，方法和介质。根据一些实施例，提供了用于从编码图像重构空时体积的系统，所述系统包括：输出图像数据的图像传感器; 以及至少一个处理器，其根据编码的快门功能使得将空间体积的投影捕获在图像数据的单个图像中; 接收图像数据; 对图像数据进行重建处理，以提供与图像数据对应的时空容量。

10. 发明申请

US20130070121A1 METHODS AND SYSTEMS FOR CODED ROLLING SHUTTER 有权
公开(公告)号：US20130070121A1
公开(公告)日：2013-03-21
申请号：US13504905
申请日：2010-10-28
申请人： Jinwei Gu , Yasunobu Hitomi , Tomoo Mitsunaga , Shree K. Nayar
发明人： Jinwei Gu , Yasunobu Hitomi , Tomoo Mitsunaga , Shree K. Nayar
IPC分类号： H04N7/00
CPC分类号： H04N7/002 , G06T5/003 , G06T2207/20201 , H04N5/2329 , H04N5/2353 , H04N5/3532 , H04N5/3535 , H04N5/35554 , H04N5/374 , H04N5/378 , H04N7/00
摘要： Methods and systems for coded rolling shutter are provided. In accordance with some embodiments, methods and system are provided that control the readout timing and exposure length for each row of a pixel array in an image sensor, thereby flexibly sampling the three-dimensional space-time value of a scene and capturing sub-images that effectively encode motion and dynamic range information within a single captured image.

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