公开(公告)号：US20120092513A1

公开(公告)日：2012-04-19

申请号：US12906838

申请日：2010-10-18

申请人： Earl Wong ,  Mamoru Sugiura ,  Masato Watanabe

发明人： Earl Wong ,  Mamoru Sugiura ,  Masato Watanabe

IPC分类号： H04N5/225 ,  G06K9/00 ,  G06K9/46

CPC分类号： H04N17/002

摘要： A method of and system for computing control points in a test target are described herein. The method and system utilize symmetry to test pixel locations in a raster scan fashion, then a computed Sum of Absolute Differences or a Sum of Squared Difference value is stored at the pixel locations, which enables identification of local minimum in the resulting surface. The local minimum are control point locations.

摘要翻译： 本文描述了用于计算测试目标中的控制点的方法和系统。 该方法和系统利用对称性以光栅扫描方式测试像素位置，然后将计算出的绝对差的和或平方差和值存储在像素位置处，这使得能够识别所得表面中的局部最小值。 局部最小值是控制点位置。

公开(公告)号：US20110142287A1

公开(公告)日：2011-06-16

申请号：US12639841

申请日：2009-12-16

申请人： Earl Wong ,  Pingshan Li ,  Mamoru Sugiura ,  Maikibi Nakamura ,  Hidenori Kushida ,  Yoshihiro Murakami ,  Soroj Triteyaprasert

发明人： Earl Wong ,  Pingshan Li ,  Mamoru Sugiura ,  Maikibi Nakamura ,  Hidenori Kushida ,  Yoshihiro Murakami ,  Soroj Triteyaprasert

IPC分类号： G06K9/62

CPC分类号： G06T7/571 ,  G06T2207/10016 ,  G06T2207/10148

摘要： A two picture matching curve information is able to be used to determine precise object distance or relative object distance in a scene. Acquiring two images with different blur information in addition to the curve information enables a device to determine distance information of objects in a scene. The distance information is able to be used in image processing including generating a depth map which is then able to be used in many imaging applications.

摘要翻译： 可以使用两幅图像匹配曲线信息来确定场景中的精确物体距离或相对物体距离。 除了曲线信息之外，获取具有不同模糊信息的两个图像使得设备能够确定场景中物体的距离信息。 距离信息能够用于图像处理，包括生成深度图，然后能够在许多成像应用中使用。

公开(公告)号：US08229172B2

公开(公告)日：2012-07-24

申请号：US12639841

申请日：2009-12-16

申请人： Earl Wong ,  Pingshan Li ,  Mamoru Sugiura ,  Maikibi Nakamura ,  Hidenori Kushida ,  Yoshihiro Murakami ,  Soroj Triteyaprasert

发明人： Earl Wong ,  Pingshan Li ,  Mamoru Sugiura ,  Maikibi Nakamura ,  Hidenori Kushida ,  Yoshihiro Murakami ,  Soroj Triteyaprasert

IPC分类号： G06K9/00

CPC分类号： G06T7/571 ,  G06T2207/10016 ,  G06T2207/10148

摘要： A two picture matching curve information is able to be used to determine precise object distance or relative object distance in a scene. Acquiring two images with different blur information in addition to the curve information enables a device to determine distance information of objects in a scene. The distance information is able to be used in image processing including generating a depth map which is then able to be used in many imaging applications.

摘要翻译： 可以使用两幅图像匹配曲线信息来确定场景中的精确物体距离或相对物体距离。 除了曲线信息之外，获取具有不同模糊信息的两个图像使得设备能够确定场景中物体的距离信息。 距离信息能够用于图像处理，包括生成深度图，然后能够在许多成像应用中使用。

公开(公告)号：US20070036427A1

公开(公告)日：2007-02-15

申请号：US11204942

申请日：2005-08-15

申请人： Makibi Nakamura ,  Earl Wong

发明人： Makibi Nakamura ,  Earl Wong

IPC分类号： G06K9/00

CPC分类号： G02B27/0075 ,  G06T7/571

摘要： An imaging acquisition system that generates a depth map from two pictures of a three dimensional spatial scene is described. According to one aspect of the invention, the system generates the depth map based on the relative blur between the two pictures and the absolute blur contributed by the system. According to another aspect of the invention, the system calculates the depth map directly from the relative blur between the two pictures.

摘要翻译： 描述了从三维空间场景的两幅图像生成深度图的成像采集系统。 根据本发明的一个方面，系统基于两个图像之间的相对模糊和由系统贡献的绝对模糊来生成深度图。 根据本发明的另一方面，系统直接从两个图像之间的相对模糊来计算深度图。

公开(公告)号：US20070216765A1

公开(公告)日：2007-09-20

申请号：US11384135

申请日：2006-03-16

申请人： Earl Wong ,  Hidenori Kushida ,  Makibi Nakamura

发明人： Earl Wong ,  Hidenori Kushida ,  Makibi Nakamura

IPC分类号： H04N13/02

CPC分类号： H04N5/23212

摘要： An imaging acquisition system that generates a picture depth from an auto focus curve generated from picture of a three dimensional spatial scene is described. The auto focus curve comprises a step edge. The system generates the depth based on the step edge and a reference auto focus normalization curve.

摘要翻译： 描述从从三维空间场景的图片生成的自动聚焦曲线生成图像深度的成像获取系统。 自动对焦曲线包括步进边缘。 系统基于步进边缘和参考自动聚焦归一化曲线生成深度。

公开(公告)号：US20060029270A1

公开(公告)日：2006-02-09

申请号：US10910098

申请日：2004-08-03

申请人： Alexander Berestov ,  Earl Wong

发明人： Alexander Berestov ,  Earl Wong

IPC分类号： G06K9/00

CPC分类号： G06T7/593

摘要： A system and method for efficiently performing a depth map recovery procedure includes an imaging device that is implemented in a single-lens stereo-shutter configuration for simultaneously capturing overlaid images corresponding to a photographic target. A depth map generator is configured to analyze the overlaid images to determine disparity values corresponding to separation distances between matching points in the overlaid images. The depth map generator then utilizes the disparity values to calculate depth values that correspond to locations in the photographic target. The depth map generator may then utilize the foregoing depth values for creating a depth map corresponding to the photographic target.

摘要翻译： 用于有效执行深度图恢复过程的系统和方法包括以单透镜立体快门配置实现的成像装置，用于同时捕获与拍摄目标对应的重叠图像。 深度图生成器被配置为分析重叠的图像以确定对应于重叠图像中的匹配点之间的间隔距离的视差值。 然后，深度图生成器利用视差值来计算与摄影目标中的位置相对应的深度值。 然后，深度图生成器可以利用前述深度值来创建对应于摄影目标的深度图。

公开(公告)号：US08199248B2

公开(公告)日：2012-06-12

申请号：US12363511

申请日：2009-01-30

申请人： Pingshan Li ,  Earl Wong ,  Soroj Triteyaprasert

发明人： Pingshan Li ,  Earl Wong ,  Soroj Triteyaprasert

IPC分类号： G03B13/36

CPC分类号： H04N5/23212 ,  G02B7/38 ,  G02B27/0012 ,  G06T7/571

摘要： Apparatus and method for electronically estimating focusing distance between a camera (still and/or video camera) and a subject. Images at different focal positions of a calibration target are collected with distances between subject positions. In one aspect, histogram matching is performed to reduce noise error. A focus matching model is then generated in response to detected blur differences between successive images of the calibration target. The focus matching model is preferably converted to a polynomial equation of a desired order to smooth out image collection noise. The focus matching model is stored for access during operation. In use, the distance to subject is estimated in response to capturing images, detecting blur differences between the images and entering the blur difference information into the matching model.

摘要翻译： 用于电子估计相机（静止和/或摄像机）与被摄体之间的对焦距离的装置和方法。 在校准目标的不同焦点位置处的图像以被摄体位置之间的距离被收集。 在一个方面，执行直方图匹配以减少噪声误差。 然后响应于校准目标的连续图像之间的检测到的模糊差异而产生焦点匹配模型。 焦点匹配模型优选地被转换为期望顺序的多项式方程，以平滑图像采集噪声。 焦点匹配模型存储在操作期间进行访问。 在使用中，响应于拍摄图像估计到被摄体的距离，检测图像之间的模糊差异并将模糊差异信息输入到匹配模型中。

公开(公告)号：US08045046B1

公开(公告)日：2011-10-25

申请号：US12759041

申请日：2010-04-13

申请人： Pingshan Li ,  Earl Wong ,  Kensuke Miyagi

发明人： Pingshan Li ,  Earl Wong ,  Kensuke Miyagi

IPC分类号： H04N5/232 ,  G03B13/00

CPC分类号： H04N5/23212 ,  H04N5/23254

摘要： Camera depth estimation is performed in response to picture matching based on blur difference computed between images captured at different focal positions. A blur difference model is stored in the camera based on characterization of the camera with a series of matching curves in which blur difference varies depending on the focal length, aperture, subject distance, and lens focus position. A four-dimensional polynomial model is created to fit the matching curves for use in estimating subject distance. During operation, images are captured for use in estimating subject distance. Motion compensation is applied and blur difference is determined. Blur difference is utilized in the polynomial model to estimate subject distance. Subject distance estimates can be output or utilized within an auto focus process to provide accurate focus adjustments.

摘要翻译： 响应于基于在不同焦点位置处拍摄的图像之间计算的模糊差异的图像匹配来执行相机深度估计。 基于具有一系列匹配曲线的相机的特性，模糊差异模型存储在相机中，其中模糊差异根据焦距，光圈，被摄体距离和镜头焦距位置而变化。 创建四维多项式模型以拟合用于估计被摄体距离的匹配曲线。 在操作期间，捕获图像以用于估计被摄体距离。 应用运动补偿并确定模糊差异。 多项式模型中使用模糊差来估计主体距离。 可以在自动对焦过程中输出或使用主题距离估算值，以提供准确的焦点调整。

公开(公告)号：US20110249173A1

公开(公告)日：2011-10-13

申请号：US12759041

申请日：2010-04-13

申请人： Pingshan Li ,  Earl Wong ,  Kensuke Miyagi

发明人： Pingshan Li ,  Earl Wong ,  Kensuke Miyagi

IPC分类号： H04N5/232

CPC分类号： H04N5/23212 ,  H04N5/23254

摘要： Camera depth estimation is performed in response to picture matching based on blur difference computed between images captured at different focal positions. A blur difference model is stored in the camera based on characterization of the camera with a series of matching curves in which blur difference varies depending on the focal length, aperture, subject distance, and lens focus position. A four-dimensional polynomial model is created to fit the matching curves for use in estimating subject distance. During operation, images are captured for use in estimating subject distance. Motion compensation is applied and blur difference is determined. Blur difference is utilized in the polynomial model to estimate subject distance. Subject distance estimates can be output or utilized within an auto focus process to provide accurate focus adjustments.

摘要翻译： 响应于基于在不同焦点位置处捕获的图像之间计算的模糊差异的图像匹配来执行相机深度估计。 基于具有一系列匹配曲线的相机的特性，模糊差异模型存储在相机中，其中模糊差异根据焦距，光圈，被摄体距离和镜头焦距位置而变化。 创建四维多项式模型以拟合用于估计被摄体距离的匹配曲线。 在操作期间，捕获图像以用于估计被摄体距离。 应用运动补偿并确定模糊差异。 多项式模型中使用模糊差来估计主体距离。 可以在自动对焦过程中输出或使用主题距离估算值，以提供准确的焦点调整。

公开(公告)号：US07333652B2

公开(公告)日：2008-02-19

申请号：US10910098

申请日：2004-08-03

申请人： Alexander Berestov ,  Earl Wong

发明人： Alexander Berestov ,  Earl Wong

IPC分类号： G06K9/00

CPC分类号： G06T7/593

摘要： A system and method for efficiently performing a depth map recovery procedure includes an imaging device that is implemented in a single-lens stereo-shutter configuration for simultaneously capturing overlaid images corresponding to a photographic target. A depth map generator is configured to analyze the overlaid images to determine disparity values corresponding to separation distances between matching points in the overlaid images. The depth map generator then utilizes the disparity values to calculate depth values that correspond to locations in the photographic target. The depth map generator may then utilize the foregoing depth values for creating a depth map corresponding to the photographic target.

摘要翻译： 用于有效执行深度图恢复过程的系统和方法包括以单透镜立体快门配置实现的成像装置，用于同时捕获与拍摄目标对应的重叠图像。 深度图生成器被配置为分析重叠的图像以确定对应于重叠图像中的匹配点之间的间隔距离的视差值。 然后，深度图生成器利用视差值来计算与摄影目标中的位置相对应的深度值。 然后，深度图生成器可以利用前述深度值来创建对应于摄影目标的深度图。