公开(公告)号：US20060221248A1

公开(公告)日：2006-10-05

申请号：US11092376

申请日：2005-03-29

申请人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister ,  John Hughes ,  Fredo Durand

发明人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister ,  John Hughes ,  Fredo Durand

IPC分类号： H04N9/74

CPC分类号： H04N5/272

摘要： A method and system extracts a matte from images acquired of a scene. A foreground image focused at a foreground in a scene, a background image focused at a background in the scene, and a pinhole image focused on the entire scene are acquired. These three images can be acquired sequentially by a single camera, or simultaneous by three cameras. In the later case, foreground, background and pinhole sequences of images can be acquired. The pinhole image is compared to the foreground image and the background image to extract a matte representing the scene. The comparison classifies pixels in the images as foreground, background, or unknown pixels. An optimizer minimizes an error function in the form of Fourier image equations using a gradient descent method. The error function expresses pixel intensity differences.

摘要翻译： 方法和系统从场景获取的图像中提取哑光。 获取聚焦在场景中的前景的前景图像，聚焦在场景背景中的背景图像以及聚焦在整个场景上的针孔图像。 这三个图像可以由单个相机顺序获取，或者由三个相机同时获取。 在后一种情况下，可以获取图像的前景，背景和针孔序列。 将针孔图像与前景图像和背景图像进行比较，以提取表示场景的哑光。 比较将图像中的像素分类为前景，背景或未知像素。 优化器使用梯度下降法将傅里叶图像方程式的误差函数最小化。 误差函数表示像素强度差异。

公开(公告)号：US20060221209A1

公开(公告)日：2006-10-05

申请号：US11092375

申请日：2005-03-29

申请人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister

发明人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister

IPC分类号： H01L27/00 ,  H04N5/262 ,  G06K9/32

CPC分类号： H04N5/2254 ,  H01L27/14625 ,  H04N5/2258 ,  H04N5/2355

摘要： A camera system acquires multiple optical characteristics at multiple resolutions of a scene. The camera system includes multiple optical elements arranged as a tree having a multiple of nodes connected by edges. the nodes represent optical elements sharing a single optical center, and the edges representing light paths between the nodes. The tree has the following structure: a single root node acquiring a plenoptic field originating from a scene; nodes with a single child node represent filters, lenses, apertures, and shutters; nodes with multiple child nodes represent beam splitters and leaf nodes represent imaging sensors. Furthermore, a length of the light paths from the roof node to each leaf nodes can be equal.

摘要翻译： 相机系统以场景的多个分辨率获取多个光学特性。 相机系统包括被布置成具有通过边缘连接的多个节点的树的多个光学元件。 节点表示共享单个光学中心的光学元件，并且边缘表示节点之间的光路径。 树具有以下结构：单个根节点获取源自场景的全视场; 具有单个子节点的节点表示滤波器，透镜，孔径和快门; 具有多个子节点的节点表示分束器，叶节点表示成像传感器。 此外，从屋顶节点到每个叶节点的光路的长度可以相等。

公开(公告)号：US07599555B2

公开(公告)日：2009-10-06

申请号：US11092376

申请日：2005-03-29

申请人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister ,  John F. Hughes ,  Fredo Durand

发明人： Morgan McGuire ,  Wojciech Matusik ,  Hanspeter Pfister ,  John F. Hughes ,  Fredo Durand

IPC分类号： G06K9/34

CPC分类号： H04N5/272

摘要： A method compresses a set of correlated signals by first converting each signal to a sequence of integers, which are further organized as a set of bit-planes. An inverse accumulator is applied to each bit-plane to produce a bit-plane of shifted bits, which are permuted according to a predetermined permutation to produce bit-planes of permuted bits. Each bit-plane of permuted bits is partitioned into a set of blocks of bits. Syndrome bits are generated for each block of bits according to a rate-adaptive base code. Subsequently, the syndrome bits are decompressed in a decoder to recover the original correlated signals.

摘要翻译： 一种方法通过首先将每个信号转换成整数序列来压缩一组相关信号，该整数序列进一步被组织为一组位平面。 反向累加器被施加到每个位平面以产生位移位的位平面，它们根据预定的排列被排列以产生置换位的位平面。 置换位的每个位平面被划分成一组位块。 根据速率自适应基本码为每个位块产生综合位。 随后，解码器中的校正子位解压缩以恢复原始的相关信号。

公开(公告)号：US07408591B2

公开(公告)日：2008-08-05

申请号：US11193742

申请日：2005-07-29

申请人： Wojciech Matusik ,  Morgan McGuire

发明人： Wojciech Matusik ,  Morgan McGuire

IPC分类号： H04N9/74

CPC分类号： H04N5/275 ,  G06T7/11 ,  G06T7/194 ,  G06T2207/10016

摘要： A method extracts an alpha matte from a video acquired of a scene. A set of pinhole or narrow aperture images IP is acquired of the scene with a camera aperture set to a relatively large depth-of-field. The scene includes a background B and a foreground F. A corresponding set of wide aperture images IF is acquired of the scene with the camera aperture set to a relatively small depth-of-field. The respective pinhole and wide aperture images are combined to extract an alpha matte according to α=1+(IF−IP)/(B−BF).

摘要翻译： 一种方法从场景获取的视频中提取一个阿尔法无光泽。 在相机孔径设置为相对较大的景深的场景中获取一组针孔或窄孔径图像I 。 该场景包括背景B和前景F.获取相机孔径设置为相对较小的景深的场景的对应的一组宽光圈图像I 。 相应的针孔和宽孔径图像被组合以根据<？in-line-formula description =“In-line Formulas”end =“lead”？> alpha = 1 +（I＆ <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20070024756A1

公开(公告)日：2007-02-01

申请号：US11193742

申请日：2005-07-29

申请人： Wojciech Matusik ,  Morgan McGuire

发明人： Wojciech Matusik ,  Morgan McGuire

IPC分类号： H04N9/74

CPC分类号： H04N5/275 ,  G06T7/11 ,  G06T7/194 ,  G06T2207/10016

摘要： A method extracts an alpha matte from a video acquired of a scene. A set of pinhole or narrow aperture images IP is acquired of the scene with a camera aperture set to a relatively large depth-of-field. The scene includes a background B and a foreground F. A corresponding set of wide aperture images IF is acquired of the scene with the camera aperture set to a relatively small depth-of-field. The respective pinhole and wide aperture images are combined to extract an alpha matte according to α=1+(IF−IP)/(B−BF).

摘要翻译： 一种方法从场景获取的视频中提取一个阿尔法无光泽。 在相机孔径设置为相对较大的景深的场景中获取一组针孔或窄孔径图像I 。 该场景包括背景B和前景F.获取相机孔径设置为相对较小的景深的场景的对应的一组宽光圈图像I 。 相应的针孔和宽孔径图像被组合以根据<？in-line-formula description =“In-line Formulas”end =“lead”？> alpha = 1 +（I＆ /（BB F））。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20120213450A1

公开(公告)日：2012-08-23

申请号：US13031160

申请日：2011-02-18

申请人： Peter Schuyler Shirley ,  Timo Aila ,  Jonathan Michael Cohen ,  Eric B. Enderton ,  Samuli Laine ,  Morgan McGuire ,  David Patrick Luebke

发明人： Peter Schuyler Shirley ,  Timo Aila ,  Jonathan Michael Cohen ,  Eric B. Enderton ,  Samuli Laine ,  Morgan McGuire ,  David Patrick Luebke

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10028 ,  G06T2207/20012

摘要： A system, method, and computer program product are provided for reducing noise in an image using depth-based on sweeping over image samples. In use, each noisy pixel of an image having noise is identified. Additionally, for each noisy pixel, at least one sample included in each of a plurality of neighboring pixels to the noisy pixel is identified. Furthermore, the samples are swept over at least partially in a depth-based order to identify a value for the noisy pixel that reduces the noise.

摘要翻译： 提供了一种系统，方法和计算机程序产品，用于使用基于扫描图像样本的深度来减少图像中的噪声。 在使用中，识别具有噪声的图像的每个噪声像素。 另外，对于每个噪声像素，识别包括在噪声像素的多个相邻像素中的每一个中的至少一个样本。 此外，样本至少部分地以基于深度的顺序扫描，以识别降低噪声的噪声像素的值。

公开(公告)号：US08842931B2

公开(公告)日：2014-09-23

申请号：US13031160

申请日：2011-02-18

申请人： Peter Schuyler Shirley ,  Timo Aila ,  Jonathan Michael Cohen ,  Eric B. Enderton ,  Samuli Laine ,  Morgan McGuire ,  David Patrick Luebke

发明人： Peter Schuyler Shirley ,  Timo Aila ,  Jonathan Michael Cohen ,  Eric B. Enderton ,  Samuli Laine ,  Morgan McGuire ,  David Patrick Luebke

IPC分类号： G06K9/40 ,  H04N5/00 ,  G06T5/20 ,  G06T5/00

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10028 ,  G06T2207/20012

摘要： A system, method, and computer program product are provided for reducing noise in an image using depth-based on sweeping over image samples. In use, each noisy pixel of an image having noise is identified. Additionally, for each noisy pixel, at least one sample included in each of a plurality of neighboring pixels to the noisy pixel is identified. Furthermore, the samples are swept over at least partially in a depth-based order to identify a value for the noisy pixel that reduces the noise.

摘要翻译： 提供了一种系统，方法和计算机程序产品，用于使用基于扫描图像样本的深度来降低图像中的噪声。 在使用中，识别具有噪声的图像的每个噪声像素。 另外，对于每个噪声像素，识别包括在噪声像素的多个相邻像素中的每一个中的至少一个样本。 此外，样本至少部分地以基于深度的顺序扫描，以识别降低噪声的噪声像素的值。