公开(公告)号：US20110211750A1

公开(公告)日：2011-09-01

申请号：US13015251

申请日：2011-01-27

申请人： Jonathan Richard THORPE ,  Sarah Elizabeth WITT

发明人： Jonathan Richard THORPE ,  Sarah Elizabeth WITT

IPC分类号： G06K9/00

CPC分类号： G06T7/85 ,  G06T2207/20021

摘要： An apparatus for determining misalignment between a first image and a second image, the first and second images being viewable stereoscopically, the apparatus comprising: a determiner operable to determine a feature position within the first image and a corresponding feature position within the second image; a definer operable to define, within the first image and the second image, the optical axis of the cameras capturing said respective images; a calculator operable to calculate the misalignment between the feature position within the first image and the corresponding feature position within the second image using a model, the misalignment being determined in dependence upon the location of the feature position of the first image and the corresponding feature position of the second image relative to the defined optical axis of the respective images; and a tester operable to test the validity of the calculated misalignment using a random sample consensus technique, whereby the tested misalignment is valid when the random sample consensus technique achieves a predetermined condition.

摘要翻译： 一种用于确定第一图像和第二图像之间的未对准的装置，所述第一和第二图像是立体观看的，所述装置包括：确定器，可操作以确定所述第一图像内的特征位置和所述第二图像内的相应特征位置; 定义器，其可操作以在所述第一图像和所述第二图像内限定拍摄所述各个图像的相机的光轴; 计算器，其可操作以使用模型计算第一图像内的特征位置与第二图像内的对应特征位置之间的未对准，该未对准根据第一图像的特征位置的位置和对应的特征位置来确定 的第二图像相对于各个图像的所定义的光轴; 以及可用于使用随机样本共有技术来测试所计算的未对准的有效性的测试器，由此当随机样本共识技术达到预定条件时，所测试的未对准是有效的。

公开(公告)号：US20110211751A1

公开(公告)日：2011-09-01

申请号：US13024907

申请日：2011-02-10

申请人： Jonathan Richard THORPE ,  Sarah Elizabeth WITT

发明人： Jonathan Richard THORPE ,  Sarah Elizabeth WITT

IPC分类号： G06K9/00

CPC分类号： G06T7/85 ,  G06T2207/20021

摘要： and second images being viewable stereoscopically, the method comprising: determining a feature position within the first image and a corresponding feature position within the second image; defining, within the first image and the second image, the optical axis of the cameras capturing said respective images; and calculating the misalignment between at least one of scale, roll or vertical translation of the feature position within the first image and the corresponding feature position within the second image, the misalignment being determined in dependence upon the location of the feature position of the first image and the corresponding feature position of the second image relative to the defined optical axis of the respective images is described. A corresponding apparatus is also described.

摘要翻译： 并且第二图像是立体观看的，所述方法包括：确定所述第一图像内的特征位置和所述第二图像内的对应特征位置; 在所述第一图像和所述第二图像内限定拍摄所述各个图像的相机的光轴; 以及计算所述第一图像内的所述特征位置和所述第二图像内的对应特征位置的刻度尺，卷轴或垂直平移中的至少一个之间的未对准，所述未对准根据所述第一图像的所述特征位置的位置来确定 并且描述第二图像相对于相应图像的限定光轴的对应特征位置。 还描述了相应的装置。

公开(公告)号：US20100134634A1

公开(公告)日：2010-06-03

申请号：US12557925

申请日：2009-09-11

申请人： Sarah Elizabeth WITT

发明人： Sarah Elizabeth WITT

IPC分类号： H04N17/00

CPC分类号： H04N5/2224 ,  G06T7/74

摘要： An image processing system includes a camera, an image processor and a calibration surface. The calibration surface includes thereon a calibration pattern, the calibration pattern comprising a plurality of alternately coloured elements which provide a corresponding plurality of corners at locations on the calibration pattern at which more than two of the coloured elements adjoin. The corner locations define a first group of lines and a second group of lines, the lines in each of the group of lines are parallel with respect to each other and with respect to the calibration surface. The first group of lines is orthogonal to the second group of lines and the camera is operable to generate and communicate to the image processor a video signal representative of a scene as viewed by the camera, the scene including the calibration surface. The image processor is operable to detect from the video signal at least some of the corner locations and thereby identify the first and second group of lines of the calibration pattern, to extrapolate the lines from each group of lines to determine a presence and a location of a first intersection point on a plane of the scene as viewed by the camera at which the extrapolated lines from the first group intersect and a second intersection point on the plane of scene as viewed by the camera at which the extrapolated lines from the second group intersect, and to estimate from the presence and the location of the first and second intersection points one or more of an estimated roll angle value, an estimated pitch angle value and an estimated yaw angle value corresponding to a roll angle, pitch angle and yaw angle of the camera relative to the calibration surface. The detection of the corner locations by the image processor comprises identifying from the video signal a plurality of potential corner locations, defining an area of the scene as viewed by the camera centred around each potential corner location, analysing a colour of points lying on a periphery of each area, thereby estimating a likelihood that a corner is located at each potential corner location.

公开(公告)号：US20120050540A1

公开(公告)日：2012-03-01

申请号：US13179971

申请日：2011-07-11

申请人： Sarah Elizabeth WITT

发明人： Sarah Elizabeth WITT

IPC分类号： H04N17/00 ,  H04N5/262

CPC分类号： H04N13/239 ,  H04N13/246

摘要： A method of determining the movement in position of the optical axis of a camera having an optical zoom lens, comprising the steps of: obtaining a test image at a predetermined level of optical zoom; applying a digital zoom to at least part of the test image, selecting a plurality of test points in the digitally zoomed test image; changing the level of optical zoom by a predetermined amount and changing the level of digital zoom; obtaining the test image at the different level of zoom; analysing the digitally zoomed test image at the different level of optical zoom; searching at least part of the digitally zoomed test image at the different level of zoom for two of said plurality of said test points; converting the position of the test points in the digitally zoomed images into corresponding positions within the optically zoomed images; and determining the amount of movement of the optical axis on the basis of the difference in position between corresponding test points within the optically zoomed images.

摘要翻译： 一种确定具有光学变焦透镜的照相机的光轴位置的移动的方法，包括以下步骤：获得预定光学变焦级别的测试图像; 对所述测试图像的至少一部分应用数字变焦，在所述数字变焦测试图像中选择多个测试点; 将光学变焦的水平改变预定量并改变数字变焦的水平; 在不同的变焦级别获取测试图像; 在不同级别的光学变焦下分析数字缩放测试图像; 在所述多个所述测试点中的两个的不同变焦级别上搜索所述数字缩放测试图像的至少一部分; 将数字变焦图像中的测试点的位置转换成光学变焦图像内的对应位置; 并且基于光学变焦图像内的相应测试点之间的位置差来确定光轴的移动量。