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1. 发明申请

US20100014770A1 Method and apparatus providing perspective correction and/or image dewarping 有权
标题翻译：提供透视校正和/或图像清除的方法和装置
公开(公告)号：US20100014770A1
公开(公告)日：2010-01-21
申请号：US12222950
申请日：2008-08-20
申请人： Anthony Huggett , Graham Kirsch
发明人： Anthony Huggett , Graham Kirsch
IPC分类号： G06K9/40
CPC分类号： G06T3/00
摘要： Methods and apparatuses for providing dewarping and/or perspective correction of an input image are disclosed. Described embodiments include processing that provides dewarping and/or perspective correction by associating pixel values identified by input pixel addresses corresponding to an input image with output pixel addresses corresponding to an output image. An image processor having a storage circuit and an address mapping unit for determining a corresponding input pixel address from an output pixel address is also disclosed.
摘要翻译：公开了用于提供输入图像的去极化和/或透视校正的方法和装置。描述的实施例包括通过将与输入图像相对应的输入像素地址识别的像素值与对应于输出图像的输出像素地址相关联来提供去极化和/或透视校正的处理。还公开了一种具有存储电路和地址映射单元的图像处理器，用于从输出像素地址确定相应的输入像素地址。

2. 发明申请

US20080043844A1 Motion Estimator 失效
标题翻译：运动估算器
公开(公告)号：US20080043844A1
公开(公告)日：2008-02-21
申请号：US11811230
申请日：2007-06-08
申请人： Anthony Huggett
发明人： Anthony Huggett
IPC分类号： H04N7/26
CPC分类号： H04N19/16 , H04N19/162 , H04N19/172 , H04N19/176 , H04N19/433 , H04N19/46 , H04N19/55 , H04N19/57 , H04N19/61
摘要： A motion estimator includes a shape, address and vector generator [[31]] to produce control signals according to a selected size and shape of a search area comprising scan lines. A variable delay [[34]] reads reference image data of a frame in which a matching macroblock is sought from a store [[32]] under control of a variable delay control signal [[313]] from the signal generator [[31]] to align a current serial input stream of a current scan line with a serial input stream of an immediately preceding scan line. The aligned reference image pixel data is matched [[35]] against pixel data of a current macroblock using a vector from the signal generator [[31]] to produce a score representing a quality of the match. A best score together with the corresponding best vector is recorded [[37]] and the best vector output [[371]].
摘要翻译：运动估计器包括形状，地址和向量生成器[[31]]，以根据包括扫描线的搜索区域的选定大小和形状产生控制信号。可变延迟[[34]]在来自信号发生器[[31]]的可变延迟控制信号[[313]]的控制下，从存储[[32]]中读取匹配的宏块的参考图像数据[[31] ]]将当前扫描线的当前串行输入流与紧接在前的扫描线的串行输入流对齐。使用来自信号发生器[31]的矢量，将对准的参考图像像素数据与当前宏块的像素数据[[35]]进行匹配，以产生表示匹配质量的分数。记录最佳分数以及相应的最佳向量[[37]]和最佳向量输出[[371]]。

3. 发明授权

US08306337B2 Use of Z-order data in an image sensor 有权
标题翻译：在图像传感器中使用Z数据
公开(公告)号：US08306337B2
公开(公告)日：2012-11-06
申请号：US12544837
申请日：2009-08-20
申请人： Graham Kirsch , Anthony Huggett
发明人： Graham Kirsch , Anthony Huggett
IPC分类号： G06K9/00
CPC分类号： H04N5/23219 , G06K9/209 , G06K9/6202 , G06K9/6857
摘要： Systems and methods are provided for detecting objects of an object class, such as faces, in an image sensor. In some embodiments, the image sensor can include a detector with an image buffer. The image buffer can store image data in raster order. The detector can read the data out in Z order to perform object detection. The image data can then compute feature responses using the Z-ordered image data and determine whether any objects of the object class are present based on the feature responses. In some embodiments, the detector can downscale the image data while the object detection is performed and use the downscaled image data to continue the detection process. In some embodiments, the image data can perform detection even if the image is rotated.
摘要翻译：提供了用于检测图像传感器中的对象类别（例如面部）的对象的系统和方法。在一些实施例中，图像传感器可以包括具有图像缓冲器的检测器。图像缓冲器可以以光栅顺序存储图像数据。检测器可以以Z级读出数据，进行物体检测。然后，图像数据可以使用Z排序的图像数据来计算特征响应，并且基于特征响应来确定是否存在对象类的任何对象。在一些实施例中，检测器可以在执行对象检测时对图像数据进行缩减，并且使用缩小的图像数据来继续检测处理。在一些实施例中，即使图像被旋转，图像数据也可以执行检测。

4. 发明授权

US08270763B2 Systems and methods for the efficient computation of image transforms 有权
标题翻译：用于有效计算图像变换的系统和方法
公开(公告)号：US08270763B2
公开(公告)日：2012-09-18
申请号：US12489175
申请日：2009-06-22
申请人： Anthony Huggett
发明人： Anthony Huggett
IPC分类号： G06K9/36
CPC分类号： G06T3/00 , H04N5/23229
摘要： Image transforms that can be performed through a reverse lookup process in which output pixel addresses of an output image are reverse transformed into input pixel addresses. In some embodiments, rather than reverse transforming all output pixel addresses, a subset of output pixel addresses can be reverse transformed to calculate transformed addresses. The reverse transforms of all output pixel address may then be approximately calculated by interpolating the transformed addresses. The approximately transformed addresses can then be used as read addresses to a memory storing the input image.
摘要翻译：可以通过反向查找过程执行的图像变换，其中输出图像的输出像素地址被反向变换为输入像素地址。在一些实施例中，可以反向变换输出像素地址的子集，而不是逆变换所有输出像素地址，以计算变换的地址。然后可以通过内插变换的地址来近似地计算所有输出像素地址的反向变换。然后可将大致变换的地址用作存储输入图像的存储器的读地址。

5. 发明申请

US20110182474A1 EFFICIENT SYSTEM AND METHOD FOR FACE TRACKING 有权
标题翻译：高效的系统和面向追踪的方法
公开(公告)号：US20110182474A1
公开(公告)日：2011-07-28
申请号：US13081720
申请日：2011-04-07
申请人： DAVID R. POPE , Graham Kirsch , Anthony Huggett
发明人： DAVID R. POPE , Graham Kirsch , Anthony Huggett
IPC分类号： G06K9/00
CPC分类号： G06K9/209 , G06K9/00261 , G06T1/00 , H04N5/23219 , H04N21/23418
摘要： A method of scanning a scene using an image sensor includes (a) dividing the scene into multiple first portions; and scanning a first portion for presence of objects in an object class. The method further includes continuing the scanning of the multiple first portions for presence of other objects in the scene. The method also selects a second portion of the scene, in response to detecting an object in the first portion; and then tracking the object in the selected second portion. The second portion of the scene is selected based on estimating motion of the object detected in the first portion, so that it may still be located in the second portion.
摘要翻译：使用图像传感器扫描场景的方法包括（a）将场景划分为多个第一部分; 并扫描第一部分以存在对象类中的对象。该方法还包括继续扫描多个第一部分以存在场景中的其它物体。响应于检测到第一部分中的对象，该方法还选择场景的第二部分; 然后跟踪所选择的第二部分中的对象。基于估计在第一部分中检测到的物体的运动来选择场景的第二部分，使得它仍然可以位于第二部分中。

6. 发明授权

US07907185B2 Lens correction logic for image sensors 有权
标题翻译：镜头校正逻辑用于图像传感器
公开(公告)号：US07907185B2
公开(公告)日：2011-03-15
申请号：US11778532
申请日：2007-07-16
申请人： Anthony Huggett
发明人： Anthony Huggett
IPC分类号： H04N5/228
CPC分类号： H04N17/002 , G06T5/006 , G06T7/80 , H04N5/217 , H04N5/3572
摘要： Methods of calibrating a pixel correction function for compensating for vignetting in an optical device include exposing an optical device to a reference object in order to generate pixel data of at least part of an image of the reference object. A pixel correction function is provided including a first number of unknown constant values. Pixel data of a second number of sample points is provided from the pixel data of the at least part of the image. The second number is equal to the first number or the first number plus one. The constant values are determined using the pixel data of the second number of sample points. The method allows a pixel correction function to be calibrated with a small number of sample points, thereby simplifying calibration processes for individual optical devices, and thus reducing the manufacturing costs.
摘要翻译：校准用于补偿光学装置中的渐晕的像素校正功能的方法包括将光学装置暴露于参考对象，以便生成参考对象的图像的至少一部分的像素数据。提供了包括第一数量的未知常数值的像素校正功能。从图像的至少部分的像素数据提供第二数量的采样点的像素数据。第二个数字等于第一个数字或第一个数字加一。使用第二数量的采样点的像素数据来确定常数值。该方法允许使用少量采样点校准像素校正功能，从而简化各个光学器件的校准过程，从而降低制造成本。

7. 发明申请

US20100315523A1 OBJECT DETECTION USING AN IN-SENSOR DETECTOR 有权
标题翻译：使用传感器检测器的对象检测
公开(公告)号：US20100315523A1
公开(公告)日：2010-12-16
申请号：US12544842
申请日：2009-08-20
申请人： Graham Kirsch , Anthony Huggett
发明人： Graham Kirsch , Anthony Huggett
IPC分类号： H04N5/228 , G06K9/46
CPC分类号： G06K9/00261 , G06K9/209 , G06T3/00 , H04N5/23219 , H04N5/77
摘要： Systems and methods are provided for detecting an object of object class, such as faces, in an image sensor. In some embodiments, the image sensor can provide a scan sequence that scans a scene over multiple time intervals. The image sensor can scan, in succession, portions of a scene, where each of the portions covers a different amount or location of the scene. This way, the scanned portions can be saved in an image buffer that is sized significantly smaller than an entire frame. In some embodiments, when the image sensor detects the presence of an object of the object class, the image sensor can store positional information (e.g., location and size of the object) in a region of interest buffer. The image sensor can output the positional information to aid an electronic device, such as a camera, perform various functions, such as automatic exposure and color balancing.
摘要翻译：系统和方法被提供用于在图像传感器中检测对象类的对象，例如面部。在一些实施例中，图像传感器可以提供在多个时间间隔上扫描场景的扫描序列。图像传感器可以连续地扫描场景的各部分，其中每个部分覆盖场景的不同量或位置。这样，扫描的部分可以保存在尺寸明显小于整个帧的图像缓冲器中。在一些实施例中，当图像传感器检测到对象类别的对象的存在时，图像传感器可以将位置信息（例如，对象的位置和大小）存储在感兴趣区域缓冲器中。图像传感器可以输出位置信息以帮助诸如照相机的电子设备执行各种功能，例如自动曝光和色彩平衡。

8. 发明申请

US20100303383A1 SYSTEMS AND METHODS FOR THE EFFICIENT COMPUTATION OF IMAGE TRANSFORMS 有权
标题翻译：用于有效计算图像变换的系统和方法
公开(公告)号：US20100303383A1
公开(公告)日：2010-12-02
申请号：US12489175
申请日：2009-06-22
申请人： Anthony Huggett
发明人： Anthony Huggett
IPC分类号： G06K9/36
CPC分类号： G06T3/00 , H04N5/23229
摘要： Image transforms that can be performed through a reverse lookup process in which output pixel addresses of an output image are reverse transformed into input pixel addresses. In some embodiments, rather than reverse transforming all output pixel addresses, a subset of output pixel addresses can be reverse transformed to calculate transformed addresses. The reverse transforms of all output pixel address may then be approximately calculated by interpolating the transformed addresses. The approximately transformed addresses can then be used as read addresses to a memory storing the input image.
摘要翻译：可以通过反向查找过程执行的图像变换，其中输出图像的输出像素地址被反向变换为输入像素地址。在一些实施例中，可以反向变换输出像素地址的子集，而不是逆变换所有输出像素地址，以计算变换的地址。然后可以通过内插变换的地址来近似地计算所有输出像素地址的反向变换。然后可将大致变换的地址用作存储输入图像的存储器的读地址。

9. 发明申请

US20100073535A1 SYSTEM, METHOD, AND APPARATUS FOR VARIABLE RATE PIXEL DATA TRANSFER AND STORAGE 有权
标题翻译：用于可变速率像素数据传输和存储的系统，方法和装置
公开(公告)号：US20100073535A1
公开(公告)日：2010-03-25
申请号：US12234725
申请日：2008-09-22
申请人： Anthony Huggett , Neal Crook , Graham Krisch , Michael Lockey
发明人： Anthony Huggett , Neal Crook , Graham Krisch , Michael Lockey
IPC分类号： H04N5/335
CPC分类号： H04N5/335
摘要： A variable rate image sensor outputs pixel data at a variable rate using lookup tables to selectively read out particular rows at particular times. The readout rate is not constant, allowing for a smaller image buffer in the overall system.
摘要翻译：可变速率图像传感器使用查找表以可变速率输出像素数据，以在特定时间选择性地读出特定的行。读出速率不是恒定的，允许在整个系统中使用较小的图像缓冲区。

10. 发明申请

US20100073491A1 DUAL BUFFER SYSTEM FOR IMAGE PROCESSING 审中-公开
标题翻译：用于图像处理的双缓冲系统
公开(公告)号：US20100073491A1
公开(公告)日：2010-03-25
申请号：US12234723
申请日：2008-09-22
申请人： Anthony Huggett
发明人： Anthony Huggett
IPC分类号： H04N5/225
CPC分类号： H04N7/0105 , G06T3/4023
摘要： A processing system has a backlog of data caused by a difference between an input rate for receiving pixel data and a conversion rate for converting the pixel data to new pixel data. A dual buffer system associated with the processing system stores a minimum amount of unprocessed pixel data, required to perform an associated processing operation, in a first memory device and stores a backlog of the processed pixel data, after performing the associated processing operation, in a second memory device. The combined size of the first and second memory devices is less than the size that would otherwise be required to store the minimum amount of pixel data and the backlog of pixel data as unprocessed pixel data.
摘要翻译：处理系统具有由用于接收像素数据的输入速率和用于将像素数据转换为新像素数据的转换率之间的差引起的积压数据。与处理系统相关联的双缓冲系统在第一存储设备中存储执行关联处理操作所需的最少量的未处理像素数据，并且在执行相关联的处理操作之后，在第二存储设备。第一和第二存储器件的组合尺寸小于将最小量的像素数据和积压的像素数据作为未处理的像素数据所需的大小。

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