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公开(公告)号：US08494307B2
公开(公告)日：2013-07-23
申请号：US13024907
申请日：2011-02-10
IPC分类号： G06K9/32
CPC分类号： G06T7/85 , G06T2207/20021
摘要： A method of determining misalignment between a first image and a second image, the first 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： 一种确定第一图像和第二图像之间的未对准的方法，所述第一和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。
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公开(公告)号：US20120257013A1
公开(公告)日：2012-10-11
申请号：US13441431
申请日：2012-04-06
CPC分类号： H04N13/239 , H04N5/23212 , H04N13/296 , H04N2013/0081
摘要： An image analysis apparatus for processing a 3D video signal comprising successive pairs of images representing different respective views of a scene to generate an image depth indicator comprises a correlator configured to correlate image areas in one of the pair of images with image areas in the other of the pair of images so as to detect displacements of corresponding image areas between the two images; a graphics generator configured to generate a graphical representation of the distribution of the displacements, with respect to a range of possible displacement values, across the pair of images; and a display generator for generating for display the graphical representation in respect of a current pair of images and in respect of a plurality of preceding pairs of images, so as to provide a time-based representation of variations in the distribution of the displacements.
摘要翻译： 一种用于处理3D视频信号的图像分析装置，包括表示场景的不同相应视图的连续成对的图像以生成图像深度指示符，包括：相关器，被配置为将一对图像中的一个图像中的图像区域与另一个图像中的图像区域相关联; 一对图像，以便检测两个图像之间的相应图像区域的位移; 图形生成器，其被配置为相对于所述一对图像的可能位移值的范围生成所述位移的分布的图形表示; 以及显示生成器，用于生成用于显示关于当前图像对和关于多个先前图像对的图形表示，以便提供对位移分布的变化的基于时间的表示。
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公开(公告)号：US20110057948A1
公开(公告)日：2011-03-10
申请号：US12851151
申请日：2010-08-05
CPC分类号： G06T1/00 , H04N13/111
摘要： A method of aligning a first image captured by a first camera with at least a segment of an image captured with a second camera, the images captured by the first and second camera having an overlapping field of view, the method comprising: determining, in the first image, an image characteristic value indicative of an image characteristic at a position within the overlapping field of view; determining, in the second image, an image characteristic value indicative of an image characteristic at a position within the overlapping field of view; determining the difference in position between corresponding image characteristic values in the overlapping field of view in the first image and the overlapping field of view in the second image; and applying a transform to the first image, the transform adjusting the orientation of the first image relative to the second image, wherein the first and second image are aligned when the difference in position between corresponding image characteristic values in the first and second image is a predetermined amount.
摘要翻译： 一种将由第一相机拍摄的第一图像与由第二相机拍摄的图像的至少一段对准的方法，由第一和第二相机拍摄的图像具有重叠的视场，该方法包括：在 第一图像，表示重叠视场内的位置处的图像特征的图像特征值; 在所述第二图像中确定指示所述重叠视场内的位置处的图像特征的图像特征值; 确定第一图像中的重叠视场中的相应图像特征值与第二图像中的重叠视场之间的位置差; 以及对所述第一图像应用变换，所述变换调整所述第一图像相对于所述第二图像的取向，其中当所述第一图像和所述第二图像中的相应图像特征值之间的位置差为 预定量。
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公开(公告)号：US08427504B2
公开(公告)日：2013-04-23
申请号：US12851151
申请日：2010-08-05
CPC分类号： G06T1/00 , H04N13/111
摘要： A first image captured by a first camera can be aligned with at least a segment of a second image captured with a second camera, where the images have an overlapping field of view. Image characteristic values indicative of image characteristics at positions within the overlapping field of view of the first and second images are respectively determined. A difference in position between corresponding image characteristic values in the overlapping field of view in the first image and the overlapping field of view in the second image is determined. A transform is applied to the first image, adjusting an orientation of the first image relative to the second image. The first and second image can be aligned when the difference in position between corresponding image characteristic values in the first and second image is a predetermined amount.
摘要翻译： 由第一相机拍摄的第一图像可以与用第二相机拍摄的第二图像的至少一段对准，其中图像具有重叠的视场。 分别确定表示第一和第二图像的重叠视野内的位置处的图像特征的图像特征值。 确定第一图像中的重叠视场中的相应图像特征值与第二图像中的重叠视场之间的位置差异。 对第一图像应用变换，调整第一图像相对于第二图像的取向。 当第一和第二图像中的对应图像特征值之间的位置差为预定量时，可以对准第一和第二图像。
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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.
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公开(公告)号：US20080137966A1
公开(公告)日：2008-06-12
申请号：US11875522
申请日：2007-10-19
申请人： Sarah Elizabeth Witt
发明人： Sarah Elizabeth Witt
IPC分类号： G06K9/74
CPC分类号： G06T11/001 , G06T13/80
摘要： A method of displaying an image from a image store to a display device at a predetermined output frame period is described in which the image is represented by a plurality of pixels and each pixel has a colour represented by pixel values which define a position within colour space. In the display method, a plurality of regions are defined within colour space, and then each pixel value used within the image is allocated to one of the defined regions within colour space in accordance with the position in colour space of the pixel value. Then, one or more areas of the image are selected, and for each of the selected one or more areas, one of the defined regions within colour space is selected. For each selected area of the image, pixels which have a pixel value which has been allocated to the selected region within colour space are identified and add to the image store. Different areas of the image and regions of colour space are selected in succession in accordance with a predetermined sequence in time until each combination of image area and region of colour space has been selected and all pixels of the image thereby added to the image store for display. The predetermined sequence in time has a duration which is longer than the predetermined output frame period. In this way, by progressively building up an image in units of area and colour, it is possible to achieve a visual effect of the image being “painted in” by hand.
摘要翻译： 描述了以预定输出帧周期将图像从图像存储器显示到显示装置的方法，其中图像由多个像素表示，并且每个像素具有由限定颜色空间内的位置的像素值表示的颜色 。 在显示方法中，在颜色空间内定义多个区域，然后根据像素值的颜色空间中的位置将图像中使用的每个像素值分配给颜色空间内的一个限定区域。 然后，选择图像的一个或多个区域，并且对于所选择的一个或多个区域中的每一个，选择颜色空间内的限定区域之一。 对于图像的每个选定区域，识别已经分配给颜色空间内的所选区域的像素值的像素并将其添加到图像存储器。 根据预定的时间顺序连续地选择图像的不同区域和颜色空间的区域，直到选择了图像区域和颜色空间区域的每个组合，并且由此将图像的所有像素添加到图像存储以进行显示 。 预定的时间顺序具有比预定输出帧周期长的持续时间。 以这种方式，通过以区域和颜色为单位逐渐构建图像，可以实现手绘“图像”的图像的视觉效果。
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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
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。
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公开(公告)号：US20110211751A1
公开(公告)日：2011-09-01
申请号：US13024907
申请日：2011-02-10
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。
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公开(公告)号：US08976229B2
公开(公告)日：2015-03-10
申请号：US13441431
申请日：2012-04-06
CPC分类号： H04N13/239 , H04N5/23212 , H04N13/296 , H04N2013/0081
摘要： An image analysis apparatus for processing a 3D video signal comprising successive pairs of images representing different respective views of a scene to generate an image depth indicator comprises a correlator configured to correlate image areas in one of the pair of images with image areas in the other of the pair of images so as to detect displacements of corresponding image areas between the two images; a graphics generator configured to generate a graphical representation of the distribution of the displacements, with respect to a range of possible displacement values, across the pair of images; and a display generator for generating for display the graphical representation in respect of a current pair of images and in respect of a plurality of preceding pairs of images, so as to provide a time-based representation of variations in the distribution of the displacements.
摘要翻译： 一种用于处理3D视频信号的图像分析装置，包括表示场景的不同相应视图的连续成对的图像以生成图像深度指示符，包括：相关器，被配置为将一对图像中的一个图像中的图像区域与另一个图像中的图像区域相关联; 一对图像，以便检测两个图像之间的相应图像区域的位移; 图形生成器，其被配置为相对于所述一对图像的可能位移值的范围生成所述位移的分布的图形表示; 以及显示生成器，用于生成用于显示关于当前图像对和关于多个先前图像对的图形表示，以便提供对位移分布的变化的基于时间的表示。
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公开(公告)号：US08538198B2
公开(公告)日：2013-09-17
申请号：US13015251
申请日：2011-01-27
IPC分类号： G06K9/32
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。
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