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公开(公告)号：US20100309364A1
公开(公告)日：2010-12-09
申请号：US12479728
申请日：2009-06-05
Applicant: Ralph Brunner , David Hayward
Inventor： Ralph Brunner , David Hayward
IPC: H04N5/232
CPC classification number: G03B13/36 , H04M2250/12 , H04M2250/52 , H04N5/23212 , H04N5/23248 , H04N5/23258 , H04N5/772
Abstract: At least certain embodiments described herein provide a continuous autofocus mechanism for an image capturing device. The continuous autofocus mechanism can perform an autofocus scan for a lens of the image capturing device and obtain focus scores associated with the autofocus scan. The continuous autofocus mechanism can determine an acceptable band of focus scores based on the obtained focus scores. Next, the continuous autofocus mechanism can determine whether a current focus score is within the acceptable band of focus scores. A refocus scan may be performed if the current focus score is outside of the acceptable band of focus scores.
Abstract translation: 本文所描述的至少某些实施例提供了用于图像捕获装置的连续自动对焦机构。 连续自动对焦机构可以对图像拍摄装置的镜头进行自动聚焦扫描，并获得与自动对焦扫描相关联的焦点分数。 连续自动对焦机制可以基于获得的焦点分数来确定可接受的焦点分数带。 接下来，连续自动对焦机构可以确定当前焦点得分是否在可接受的焦点分数范围内。 如果当前焦点得分超出可接受的焦点分数范围，则可以执行重新聚焦扫描。
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公开(公告)号：US08786761B2
公开(公告)日：2014-07-22
申请号：US12479728
申请日：2009-06-05
Applicant: Ralph Brunner , David Hayward
Inventor： Ralph Brunner , David Hayward
IPC: G03B13/00
CPC classification number: G03B13/36 , H04M2250/12 , H04M2250/52 , H04N5/23212 , H04N5/23248 , H04N5/23258 , H04N5/772
Abstract: At least certain embodiments described herein provide a continuous autofocus mechanism for an image capturing device. The continuous autofocus mechanism can perform an autofocus scan for a lens of the image capturing device and obtain focus scores associated with the autofocus scan. The continuous autofocus mechanism can determine an acceptable band of focus scores based on the obtained focus scores. Next, the continuous autofocus mechanism can determine whether a current focus score is within the acceptable band of focus scores. A refocus scan may be performed if the current focus score is outside of the acceptable band of focus scores.
Abstract translation: 本文所描述的至少某些实施例提供了用于图像捕获装置的连续自动对焦机构。 连续自动对焦机构可以对图像拍摄装置的镜头执行自动聚焦扫描，并获得与自动对焦扫描相关联的焦点分数。 连续自动对焦机制可以基于获得的焦点分数来确定可接受的焦点分数带。 接下来，连续自动对焦机构可以确定当前焦点得分是否在可接受的焦点分数范围内。 如果当前焦点得分超出可接受的焦点分数范围，则可以执行重新聚焦扫描。
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公开(公告)号：US20100309345A1
公开(公告)日：2010-12-09
申请号：US12755574
申请日：2010-04-07
Applicant: Mark Zimmer , Ralph Brunner , David Hayward
Inventor： Mark Zimmer , Ralph Brunner , David Hayward
CPC classification number: H04N9/646 , G06T5/002 , G06T5/009 , H04N5/3572 , H04N9/045
Abstract: A system, apparatus, computer readable medium, and method for radially-dependent noise reduction in image capturing devices involving an edge-preserving blur window are disclosed. In one embodiment, the edge-preserving blur includes only those pixels in the blur window that are within a threshold value of the blur window's current center pixel in its blurring calculation. By creating a threshold function that varies radially from the center of the image sensor's light intensity falloff function, a more appropriate threshold value can be chosen for each pixel, allowing for more noise farther from the center of the image, and allowing for less noise closer to the center of the image. Light-product information taken from the image's metadata may be used to scale the threshold value parameters dynamically. This allows the method to perform the appropriate amount of processing depending on the lighting situation of the image that is currently being processed.
Abstract translation: 公开了一种用于涉及边缘保持模糊窗口的图像捕获设备中用于径向依赖性降噪的系统，设备，计算机可读介质和方法。 在一个实施例中，边缘保留模糊仅包括在其模糊计算中在模糊窗口当前中心像素的阈值内的模糊窗口中的那些像素。 通过创建从图像传感器的光强度衰减功能的中心径向变化的阈值函数，可以为每个像素选择更合适的阈值，允许更多的噪声离图像中心更远，并允许更少的噪声更接近 到图像的中心。 可以使用从图像的元数据获得的光产品信息来动态地缩放阈值参数。 这允许该方法根据当前正在处理的图像的照明情况来执行适当的处理量。
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公开(公告)号：US08274583B2
公开(公告)日：2012-09-25
申请号：US12755574
申请日：2010-04-07
Applicant: Mark Zimmer , Ralph Brunner , David Hayward
Inventor： Mark Zimmer , Ralph Brunner , David Hayward
CPC classification number: H04N9/646 , G06T5/002 , G06T5/009 , H04N5/3572 , H04N9/045
Abstract: A system, apparatus, computer readable medium, and method for radially-dependent noise reduction in image capturing devices involving an edge-preserving blur window are disclosed. In one embodiment, the edge-preserving blur includes only those pixels in the blur window that are within a threshold value of the blur window's current center pixel in its blurring calculation. By creating a threshold function that varies radially from the center of the image sensor's light intensity falloff function, a more appropriate threshold value can be chosen for each pixel, allowing for more noise farther from the center of the image, and allowing for less noise closer to the center of the image. Light-product information taken from the image's metadata may be used to scale the threshold value parameters dynamically. This allows the method to perform the appropriate amount of processing depending on the lighting situation of the image that is currently being processed.
Abstract translation: 公开了一种用于涉及边缘保持模糊窗口的图像捕获设备中用于径向依赖性降噪的系统，设备，计算机可读介质和方法。 在一个实施例中，边缘保留模糊仅包括在其模糊计算中在模糊窗口当前中心像素的阈值内的模糊窗口中的那些像素。 通过创建从图像传感器的光强度衰减功能的中心径向变化的阈值函数，可以为每个像素选择更合适的阈值，允许更多的噪声离图像中心更远，并允许更少的噪声更接近 到图像的中心。 可以使用从图像的元数据获得的光产品信息来动态地缩放阈值参数。 这允许该方法根据当前正在处理的图像的照明情况来执行适当的处理量。
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公开(公告)号：US08284271B2
公开(公告)日：2012-10-09
申请号：US12479592
申请日：2009-06-05
Applicant: Mark Zimmer , Ralph Brunner , David Hayward
Inventor： Mark Zimmer , Ralph Brunner , David Hayward
CPC classification number: H04N9/646 , G06T5/002 , G06T5/20 , G06T2207/10024 , G06T2207/20192
Abstract: A system, apparatus, computer readable medium, and method for noise reduction in image capturing devices involving an edge-preserving blur window is disclosed. In one embodiment, the edge-preserving blur includes only those pixels in the blur window that are visually close to the blur window's current center pixel in its blurring calculation. Limiting the pixels considered in the blur to those that are visually close to the center pixel ensures that the image's colors are not blurred along color edges within the image. Light-product information taken from the image's metadata, for example, the camera sensor's gain level, may be used to adjust the blur filter parameters dynamically. This allows the method to perform the appropriate amount of processing depending on the lighting situation of the image that is currently being processed.
Abstract translation: 公开了一种用于涉及边缘保持模糊窗口的图像捕获装置中的用于降噪的系统，装置，计算机可读介质和方法。 在一个实施例中，边缘保留模糊仅包括模糊窗口中在其模糊计算中在视觉上接近模糊窗口当前中心像素的那些像素。 将模糊中考虑的像素限制在视觉上靠近中心像素的像素上，确保图像的颜色不会沿着图像中的颜色边缘模糊。 从图像的元数据获得的光产品信息，例如摄像机传感器的增益水平，可以用于动态地调整模糊滤波器参数。 这允许该方法根据当前正在处理的图像的照明情况来执行适当的处理量。
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Patent Agency Ranking
公开(公告)号：US08836824B2
公开(公告)日：2014-09-16
申请号：US13151967
申请日：2011-06-02
Applicant: Farhan A. Baqai , Ralph Brunner
Inventor： Farhan A. Baqai , Ralph Brunner
Abstract: Systems, methods, and computer readable media for removing noise from the luminance (luma) channel in a digital image represented in the YUV color space are described. In general, an element from the luma channel may be selected and a region about that element defined. Using a threshold that is based on the selected luma element's value, similar luma values within the defined region may be identified and combined to provide a substitute value. The substitute value may be blended with the value of the selected element within the image's luma channel. In another implementation, element values from both an image's luma and chroma channels may be used to identify similar luma values.
Abstract translation: 描述了用于从YUV颜色空间中表示的数字图像中的亮度（亮度）通道去除噪声的系统，方法和计算机可读介质。 通常，可以选择来自亮度通道的元件，并且定义关于该元件的区域。 使用基于所选择的亮度元素值的阈值，可以识别并组合所定义区域内的相似亮度值以提供替代值。 替代值可以与图像的亮度通道内的所选择的元素的值相混合。 在另一实现中，可以使用来自图像的亮度和色度通道的元素值来识别相似的亮度值。
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公开(公告)号：US08493500B2
公开(公告)日：2013-07-23
申请号：US12912943
申请日：2010-10-27
Applicant: Frank Doepke , Ralph Brunner
Inventor： Frank Doepke , Ralph Brunner
CPC classification number: H04N5/2351 , H04N5/2353
Abstract: Systems, methods, and a computer readable medium for performing an improved blowout prevention process in an image capture device are provided to compensate for occurrences of exposure “blowouts,” i.e., areas in a captured image where pixel brightness exceeds the sensor's dynamic range of capturing capability. In one embodiment, the captured image's histogram may be analyzed to determine if the image is indicative of the presence of exposure blowouts. Once it has been determined that there likely are blowouts in the image, an exposure bias for the image capture device may be set accordingly. Particularly, the exposure value (EV) for the image capture device may be gradually corrected, e.g., by one-eighth of a stop per captured frame, until the image histogram is no longer indicative of blown out regions, at which point the image capture device's exposure value may gradually be corrected back to “normal,” i.e., non-exposure bias compensated, levels.
Abstract translation: 提供用于在图像捕获装置中执行改进的防止井喷过程的系统，方法和计算机可读介质，以补偿曝光“井喷”的出现，即，捕获图像中的像素亮度超过传感器的捕获动态范围的区域 能力。 在一个实施例中，可以分析捕获的图像的直方图以确定图像是否指示曝光爆破的存在。 一旦已经确定图像中可能有喷射，则可以相应地设置用于图像捕获装置的曝光偏压。 特别地，图像捕获装置的曝光值（EV）可以逐渐地被校正，例如每拍摄的帧的八分之一的停止，直到图像直方图不再指示吹出的区域，此时图像捕获 设备的曝光值可能会逐渐被修正回“正常”，即非曝光偏差补偿水平。
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公开(公告)号：US08446415B2
公开(公告)日：2013-05-21
申请号：US13367751
申请日：2012-02-07
Applicant: Ralph Brunner , John Harper , Peter N. Graffagnino
Inventor： Ralph Brunner , John Harper , Peter N. Graffagnino
IPC: G06T13/00
Abstract: A framework for performing graphics animation and compositing operations has a layer tree for interfacing with the application and a render tree for interfacing with a render engine. Layers in the layer tree can be content, windows, views, video, images, text, media, or any other type of object for a user interface of an application. The application commits change to the state of the layers of the layer tree. The application does not need to include explicit code for animating the changes to the layers. Instead, an animation is determined for animating the change in state. The determined animation is explicitly applied to the affected layers in the render tree. A render engine renders from the render tree into a frame buffer for display on the processing device. Those portions of the render tree that have changed relative to prior versions can be tracked to improve resource management.
Abstract translation: 用于执行图形动画和合成操作的框架具有用于与应用接口的层树和用于与渲染引擎接口的渲染树。 层树中的层可以是应用的用户界面的内容，窗口，视图，视频，图像，文本，媒体或任何其他类型的对象。 应用程序将更改为层树的层的状态。 该应用程序不需要包含用于动画化图层的更改的显式代码。 相反，确定动画来动画状态的变化。 确定的动画显式应用于渲染树中的受影响的图层。 渲染引擎从渲染树呈现到用于在处理设备上显示的帧缓冲器。 渲染树中相对于先前版本更改的那些部分可以被跟踪，以改进资源管理。
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公开(公告)号：US20120293610A1
公开(公告)日：2012-11-22
申请号：US13109941
申请日：2011-05-17
Applicant: Frank Doepke , Ralph Brunner
Inventor： Frank Doepke , Ralph Brunner
IPC: H04N5/225
CPC classification number: H04N5/23238
Abstract: This disclosure pertains to devices, methods, and computer readable media for performing positional sensor-assisted panoramic photography techniques in handheld personal electronic devices. Generalized steps that may be used to carry out the panoramic photography techniques described herein include, but are not necessarily limited to: 1.) acquiring image data from the electronic device's image sensor; 2.) performing “motion filtering” on the acquired image data, e.g., using information returned from positional sensors of the electronic device to inform the processing of the image data; 3.) performing image registration between adjacent captured images; 4.) performing geometric corrections on captured image data, e.g., due to perspective changes and/or camera rotation about a non-center of perspective (COP) camera point; and 5.) “stitching” the captured images together to create the panoramic scene, e.g., blending the image data in the overlap area between adjacent captured images. The resultant stitched panoramic image may be cropped before final storage.
Abstract translation: 本公开涉及用于在手持式个人电子设备中执行位置传感器辅助全景摄影技术的设备，方法和计算机可读介质。 可以用于执行本文描述的全景摄影技术的通用步骤包括但不限于：1.从电子设备的图像传感器获取图像数据; 2.对所获取的图像数据执行运动滤波，例如使用从电子设备的位置传感器返回的信息来通知图像数据的处理; 3）在相邻拍摄图像之间执行图像配准; 4.）对捕获的图像数据进行几何校正，例如由于透视变化和/或关于非中心透镜（COP）相机点的相机旋转; 和5.）将所捕获的图像拼接在一起以创建全景场景，例如，将图像数据混合在相邻拍摄图像之间的重叠区域中。 最终的缝合全景图像可以在最终存储之前被裁剪。
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公开(公告)号：US08311355B2
公开(公告)日：2012-11-13
申请号：US12479651
申请日：2009-06-05
Applicant: Ralph Brunner , Mark Zimmer
Inventor： Ralph Brunner , Mark Zimmer
CPC classification number: H04N9/68 , G06T5/008 , G06T2207/10024 , G06T2207/20012 , G06T2207/30201 , H04N9/643
Abstract: Increasing color saturation and contrast in images generally leads to more pleasing images; however, doing so uniformly to all colors in the image can make skin tones appear with an overly red tint. One embodiment of an improved method of skin tone aware color boosting identifies areas of the image which look like skin tones and areas that do not look like skin tones. A blurred “skin tone mask” can then be created over the image. One large boost operation and one small boost operation can be applied to the image. A final version of the image may then be created, applying the pixel values resulting from the small boosting operation to the skin tone regions and applying the pixel values resulting from the large boosting operation to the non-skin tone regions, using the blurred mask to provide a smooth transition between the skin tone and non-skin tone regions.
Abstract translation: 增加图像中的色彩饱和度和对比度通常会导致更令人愉快的图像; 然而，对图像中的所有颜色均匀地进行，可以使皮肤色调出现过度的红色色调。 一种改进的肤色感觉色彩增强方法的一个实施例识别看起来像皮肤色调的图像区域和看起来不像肤色的区域。 然后可以在图像上创建一个模糊的肤色蒙版。 可以对图像应用一个大的升压操作和一个小的升压操作。 然后可以创建图像的最终版本，将由小增强操作产生的像素值应用于肤色区域，并且使用模糊掩码将来自大增强操作的像素值应用于非肤色区域 提供肤色和非肤色区域之间的平滑过渡。
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