公开(公告)号：US06983080B2

公开(公告)日：2006-01-03

申请号：US10199376

申请日：2002-07-19

申请人： John S. Wenstrand ,  Todd S. Sachs

发明人： John S. Wenstrand ,  Todd S. Sachs

IPC分类号： G06K9/36

CPC分类号： G06T3/4053 ,  H04N5/349

摘要： An image having higher resolution and/or better color is generated from multiple images of a subject taken by a handheld imaging device. The motion of the device, even when a user holds the device steady, gives the images perspectives that differ by an amount ranging from a fraction of a pixel to a few pixels. The differences in perspective provide different information about the subject that can be combined to create a better image. In particular, an image shifted by a non-integer number of pixels relative to another image provides information about portions of the subject that are between the pixels of the other image and usable for increasing resolution. Images shifted relative to each other by an integer number of pixels have aligned pixels that may provide different color information for the same portion of the subject when the aligned pixels correspond sensor elements having different color filters.

摘要翻译： 具有较高分辨率和/或更好颜色的图像由手持式成像装置拍摄的被摄体的多个图像产生。 即使用户将设备稳定地保持在设备的运动中，给出的图像视角的差异范围从一小部分像素到几个像素。 透视差异提供了可以组合起来创造更好图像的主题的不同信息。 特别地，相对于另一图像偏移了非整数像素的图像提供关于另一图像的像素之间的对象的部分的信息，并且可用于增加分辨率。 当对齐的像素对应具有不同滤色器的传感器元件时，相对于彼此移位相对于像素的图像具有对准像素，其可以为被摄体的相同部分提供不同的颜色信息。

公开(公告)号：US09247133B2

公开(公告)日：2016-01-26

申请号：US13151149

申请日：2011-06-01

申请人： Frank Doepke ,  Todd S. Sachs ,  Kevin L. Hunter ,  Alexis Gatt

发明人： Frank Doepke ,  Todd S. Sachs ,  Kevin L. Hunter ,  Alexis Gatt

IPC分类号： H04N5/232 ,  G06T3/00 ,  G06T3/40 ,  H04N5/262 ,  G06T7/00

CPC分类号： H04N5/23238 ,  G06T3/0068 ,  G06T3/4038 ,  G06T7/35 ,  H04N5/2624

摘要： This disclosure pertains to devices, methods, and computer readable media for performing image registration. A few generalized steps may be used to carry out the image registration techniques described herein: 1) acquiring image data from an image sensor; 2) selecting a pair of overlapping image portions from the acquired image data for registration; 3) determining an area of “maximum energy” in one of the image portions being registered; 4) placing an image registration window over both image portions at the determined location of maximum energy; 5) registering the overlapping image portions using only the image data falling within the image registration windows; and 6) determining, according to one or more metrics, whether the image registration window should be shifted from a current location before registering subsequently acquired image portions.

摘要翻译： 本公开涉及用于执行图像配准的设备，方法和计算机可读介质。 可以使用一些通用步骤来执行本文所述的图像配准技术：1）从图像传感器获取图像数据; 2）从所获取的图像数据中选择一对重叠图像部分用于登记; 3）确定正在登记的图像部分之一中的“最大能量”的面积; 4）在确定的最大能量的位置处在两个图像部分上放置图像配准窗口; 5）仅使用落在图像配准窗口内的图像数据来登记重叠图像部分; 以及6）根据一个或多个度量确定在登记随后获取的图像部分之前图像配准窗口是否应当从当前位置移位。

公开(公告)号：US07616195B2

公开(公告)日：2009-11-10

申请号：US11051107

申请日：2005-02-04

申请人： Todd S. Sachs

发明人： Todd S. Sachs

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/03548

摘要： In one embodiment of the invention, a method for providing three-dimensional motion inputs to a device includes measuring characteristics (e.g., capacitances) between sense electrodes and a reference electrode on a movable pad, determining three-dimensional displacements of the movable pad from the capacitances, determining the three-dimensional motion inputs from the three-dimensional displacements of the movable pad, and providing the three-dimensional motion inputs to the device.In another embodiment of the invention, a pointing device mounted on a surface of a host device includes sense electrodes, a frame, a movable pad flexibly mounted in an opening of the frame. The movable pad includes a reference electrode opposite the sense electrodes. The opening limits the motion of the movable pad to a single axis on the surface and to an axis into the surface.

摘要翻译： 在本发明的一个实施例中，用于向设备提供三维运动输入的方法包括测量感测电极和可移动​​垫上的参考电极之间的特性（例如，电容），确定可移动垫的三维位移 电容，从可移动衬垫的三维位移确定三维运动输入，以及向装置提供三维运动输入。 在本发明的另一个实施例中，安装在主机设备表面上的指示装置包括感测电极，框架，柔性地安装在框架的开口中的可移动垫片。 可动衬垫包括与感测电极相对的参考电极。 开口将可移动垫的运动限制在表面上的单个轴线和限制到表面的轴线。

公开(公告)号：US07187405B2

公开(公告)日：2007-03-06

申请号：US09969040

申请日：2001-10-02

申请人： Dwight Poplin ,  Michael J. Zelman ,  Airell R. Clark, II ,  Todd S. Sachs

发明人： Dwight Poplin ,  Michael J. Zelman ,  Airell R. Clark, II ,  Todd S. Sachs

IPC分类号： H04N9/73

CPC分类号： H04N5/2357 ,  H04N5/235

摘要： An image device, such as a digital camera, detects specific repeating patterns of signal variations by processing columnar information from the device's two-dimensional sensor array used to generate images. In one embodiment, the columnar information is derived from calculating row averages for two image frames, with each row average being a computed average of the multiple signal intensities generated from some or all of the sensors within a particular row. After the columnar information is determined for each of the two frames, a difference signal is generated as a sequence of the differences between the row averages for the first frame and the row averages for the second frame. This row averaging and frame differencing removes a large percentage of the signal energy that is not a result of the artifact of interest, such as the flicker generated by illumination having intensity fluctuations at 100 Hz or at 120 Hz. In some embodiments of the invention, the row averaging and/or the frame-to-frame comparison are deleted.

公开(公告)号：US06707937B1

公开(公告)日：2004-03-16

申请号：US09615963

申请日：2000-07-14

申请人： Arthur Sobel ,  Todd S. Sachs

发明人： Arthur Sobel ,  Todd S. Sachs

IPC分类号： G06K900

CPC分类号： G06T3/4015 ,  G06T3/4007 ,  G06T3/403 ,  G09G5/20 ,  H04N9/045

摘要： A method and apparatus for interpolating color image information are provided. One or more image data values for a portion of a digital image in a vicinity of a target pixel are received and stored in a local array. A processor determines whether there is an edge in the vicinity of the target pixel based on the data values in the local array. If there is not an edge in the vicinity of the target pixel, then long scale interpolation is performed on the image data values in the local array, in order to result in interpolating color information that is missing from the image. If there is an edge in the vicinity of the target pixel, then short scale interpolation is performed using image data values in a subset of the local array in a closer vicinity of the target pixel. As a result, accurate color rendering of a digital image is achieved, even in the presence of an edge portion that exhibits great contrast between regions of the image.

摘要翻译： 提供了一种内插彩色图像信息的方法和装置。 在目标像素附近的数字图像的一部分的一个或多个图像数据值被接收并存储在本地阵列中。 处理器基于本地阵列中的数据值来确定目标像素附近是否存在边缘。 如果目标像素附近没有边缘，则对本地阵列中的图像数据值进行长标度插值，以便导出从图像中丢失的颜色信息。 如果在目标像素附近存在边缘，则使用在目标像素附近的局部阵列的子集中的图像数据值来执行短距离内插。 结果，即使存在在图像的区域之间显示出很大的对比度的边缘部分的存在，也能实现数字图像的准确的显色。

公开(公告)号：US20080042974A1

公开(公告)日：2008-02-21

申请号：US11506245

申请日：2006-08-17

申请人： Todd S. Sachs ,  Michael J. Brosnan

发明人： Todd S. Sachs ,  Michael J. Brosnan

IPC分类号： G09G5/08

CPC分类号： G06F3/03548 ,  G06F3/038 ,  G09G5/08

摘要： A pointing device includes a moveable puck, a first surface on which a puck field of motion is defined, and a controller. The total distance the puck can move from its centered or resting position is divided into N regions using one or more transition points. Each transition point corresponds to a puck position at which the cursor speed changes. The controller determines the position of the puck within the puck field of motion and, based on the current puck position and at least one transition point, the controller determines a speed at which the cursor is to be moved.

摘要翻译： 指示装置包括可移动的圆盘，其上限定了运动场的第一表面和控制器。 圆盘可以从其居中或静止位置移动的总距离使用一个或多个过渡点分成N个区域。 每个过渡点对应于光标速度变化的圆顶位置。 所述控制器确定所述圆盘在所述圆盘运动范围内的位置，并且基于所述当前的圆盘位置和至少一个转变点，所述控制器确定所述光标将被移动的速度。

公开(公告)号：US20130329087A1

公开(公告)日：2013-12-12

申请号：US13489609

申请日：2012-06-06

申请人： Marius Tico ,  Jianping Zhou ,  Todd S. Sachs

发明人： Marius Tico ,  Jianping Zhou ,  Todd S. Sachs

IPC分类号： H04N5/262 ,  H04N5/225

CPC分类号： H04N5/225 ,  H04N5/23258 ,  H04N5/23277 ,  H04N5/2355 ,  H04N5/262

摘要： Motion sensor data may be used to register a sequence of standard dynamic range images for producing a high dynamic range (HDR) image, reducing use of computational resources over software visual feature mapping techniques. A rotational motion sensor may produce information about orientation changes in the imaging device between images in the sequence of images sufficient to allow registration of the images, instead of using registration based on analysis of visual features of the images. If the imaging device has been moved laterally, then the motion sensor data may not be useful and visual feature mapping techniques may be employed to produce the HDR image.

摘要翻译： 可以使用运动传感器数据来注册用于产生高动态范围（HDR）图像的标准动态范围图像序列，从而减少计算资源在软件视觉特征映射技术上的使用。 旋转运动传感器可以产生关于图像序列中的图像之间的成像装置中的取向变化的信息，足以允许图像的注册，而不是基于对图像的视觉特征的分析来使用注册。 如果成像装置已被横向移动，则运动传感器数据可能不是有用的，并且可以采用视觉特征映射技术来产生HDR图像。

公开(公告)号：US20120307000A1

公开(公告)日：2012-12-06

申请号：US13151149

申请日：2011-06-01

申请人： Frank Doepke ,  Todd S. Sachs ,  Kevin L. Hunter ,  Alexis Gatt

发明人： Frank Doepke ,  Todd S. Sachs ,  Kevin L. Hunter ,  Alexis Gatt

IPC分类号： H04N5/228

CPC分类号： H04N5/23238 ,  G06T3/0068 ,  G06T3/4038 ,  G06T7/35 ,  H04N5/2624

摘要： This disclosure pertains to devices, methods, and computer readable media for performing image registration. A few generalized steps may be used to carry out the image registration techniques described herein: 1) acquiring image data from an image sensor; 2) selecting a pair of overlapping image portions from the acquired image data for registration; 3) determining an area of “maximum energy” in one of the image portions being registered; 4) placing an image registration window over both image portions at the determined location of maximum energy; 5) registering the overlapping image portions using only the image data falling within the image registration windows; and 6) determining, according to one or more metrics, whether the image registration window should be shifted from a current location before registering subsequently acquired image portions.

摘要翻译： 本公开涉及用于执行图像配准的设备，方法和计算机可读介质。 可以使用一些通用步骤来执行本文所述的图像配准技术：1）从图像传感器获取图像数据; 2）从所获取的图像数据中选择一对重叠图像部分用于登记; 3）确定正在登记的图像部分之一中的最大能量的面积; 4）在确定的最大能量的位置处在两个图像部分上放置图像配准窗口; 5）仅使用落在图像配准窗口内的图像数据来登记重叠图像部分; 以及6）根据一个或多个度量确定在登记随后获取的图像部分之前图像配准窗口是否应当从当前位置移位。

公开(公告)号：US07379049B2

公开(公告)日：2008-05-27

申请号：US11010666

申请日：2004-12-13

申请人： Stephan Hengstler ,  Todd S. Sachs

发明人： Stephan Hengstler ,  Todd S. Sachs

IPC分类号： G09G3/38

CPC分类号： G06F3/0317

摘要： A device such as an optical mouse includes a light source for illuminating an imaging surface, thereby generating reflected images. The device also includes an optical motion sensor for generating one-dimensional projection data based on the reflected images, filtering the projection data, and generating movement data based on the filtered projection data. The movement data is indicative of relative motion between the imaging surface and the device.

摘要翻译： 诸如光学鼠标的装置包括用于照射成像表面的光源，从而产生反射图像。 该装置还包括用于基于反射图像产生一维投影数据的光学运动传感器，对投影数据进行滤波，以及基于经滤波的投影数据产生运动数据。 运动数据表示成像表面和装置之间的相对运动。

公开(公告)号：US09253373B2

公开(公告)日：2016-02-02

申请号：US13493329

申请日：2012-06-11

申请人： Marius Tico ,  Paul M. Hubel ,  Frank Doepke ,  Todd S. Sachs

发明人： Marius Tico ,  Paul M. Hubel ,  Frank Doepke ,  Todd S. Sachs

IPC分类号： H04N5/357 ,  H04N5/14 ,  H04N5/232

CPC分类号： H04N5/23238 ,  G06T5/50 ,  G06T7/0002 ,  G06T7/11 ,  G06T7/174 ,  G06T7/20 ,  G06T11/60 ,  G06T2207/20076 ,  G06T2207/20221 ,  G06T2207/30242 ,  H04N5/14 ,  H04N5/357 ,  H04N5/3572

摘要： Lens flare mitigation techniques determine which pixels in images of a sequence of images are likely to be pixels affected by lens flare. Once the lens flare areas of the images are determined, unwanted lens flare effects may be mitigated by various approaches, including reducing border artifacts along a seam between successive images, discarding entire images of the sequence that contain lens flare areas, and using tone-mapping to reduce the visibility of lens flare.

摘要翻译： 透镜闪光缓解技术确定图像序列的图像中的哪些像素可能是由透镜闪光影响的像素。 一旦确定了镜头的照片区域，则可以通过各种方法来减轻不期望的透镜闪光效果，包括减少沿着连续图像之间的接缝的边缘伪像，丢弃包含透镜闪光区域的序列的整个图像，以及使用色调映射 以降低镜头光晕的可视性。