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公开(公告)号：US08208758B2
公开(公告)日：2012-06-26
申请号：US11363820
申请日：2006-02-28
IPC分类号： G06K9/20
CPC分类号： G06K9/00234 , H04N1/628 , H04N9/643
摘要： The disclosure is directed to techniques for region-of-interest (ROI) video processing based on low-complexity automatic ROI detection within video frames of video sequences. The low-complexity automatic ROI detection may be based on characteristics of video sensors within video communication devices. In other cases, the low-complexity automatic ROI detection may be based on motion information for a video frame and a different video frame of the video sequence. The disclosed techniques include a video processing technique capable of tuning and enhancing video sensor calibration, camera processing, ROI detection, and ROI video processing within a video communication device based on characteristics of a specific video sensor. The disclosed techniques also include a sensor-based ROI detection technique that uses video sensor statistics and camera processing side-information to improve ROI detection accuracy. The disclosed techniques also include a motion-based ROI detection technique that uses motion information obtained during motion estimation in video processing.
摘要翻译： 本公开涉及基于视频序列的视频帧内的低复杂度自动ROI检测的感兴趣区域（ROI）视频处理技术。 低复杂度的自动ROI检测可以基于视频通信设备内的视频传感器的特性。 在其他情况下，低复杂度自动ROI检测可以基于视频帧的运动信息和视频序列的不同视频帧。 所公开的技术包括基于特定视频传感器的特性，能够在视频通信设备内调整和增强视频传感器校准，相机处理，ROI检测和ROI视频处理的视频处理技术。 所公开的技术还包括基于传感器的ROI检测技术，其使用视频传感器统计和相机处理侧信息来提高ROI检测精度。 所公开的技术还包括基于运动的ROI检测技术，其使用在视频处理中的运动估计期间获得的运动信息。
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公开(公告)号：US08120658B2
公开(公告)日：2012-02-21
申请号：US11534993
申请日：2006-09-25
申请人： Shuxue Quan , Chinchuan Andrew Chiu , Xiaoyun Jiang , Jingqiang Li , Ying Xie Noyes , Kalin Atanassov
发明人： Shuxue Quan , Chinchuan Andrew Chiu , Xiaoyun Jiang , Jingqiang Li , Ying Xie Noyes , Kalin Atanassov
CPC分类号： H04N5/23248 , G06T5/003 , G06T5/50 , G06T2207/10024 , G06T2207/20201 , H04N5/2352 , H04N5/2353 , H04N5/243
摘要： A camera system in normal mode and hand jitter reduction (hjr) mode may comprise generating a first exposure time-gain product by multiplying the normal mode exposure time with the normal mode gain. It may further comprise modifying the normal mode exposure time and gain and multiplying these modified parameters to generate a second exposure time-gain product for a hjr mode that reduces the difference between the first exposure time-gain product and the second exposure time-gain product. To reduce the difference the normal mode frame rate may also be modified. Operation of a camera in normal mode may be in response to a sensed light level being above a threshold. The hjr mode may be selected by the user while the camera is operating. The hjr mode may be used in response to a sensed light level being lower than the threshold.
摘要翻译： 正常模式和手抖动降低（hjr）模式的相机系统可以包括通过将正常模式曝光时间与正常模式增益相乘来产生第一曝光时间增益积。 它还可以包括修改正常模式曝光时间并增益并且乘以这些修改的参数以产生用于hjr模式的第二曝光时间增益乘积，其减小第一曝光时间增益乘积与第二曝光时间增益乘积之间的差 。 为了减小差异，也可以修改正常模式帧速率。 在正常模式下照相机的操作可以响应于感测到的光电平高于阈值。 当相机运行时，用户可以选择hjr模式。 响应于感测到的光水平低于阈值，可以使用hjr模式。
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公开(公告)号：US08019170B2
公开(公告)日：2011-09-13
申请号：US11364285
申请日：2006-02-28
CPC分类号： G06K9/00234 , H04N19/17 , H04N19/61
摘要： The disclosure is directed to techniques for region-of-interest (ROI) video processing based on low-complexity automatic ROI detection within video frames of video sequences. The low-complexity automatic ROI detection may be based on characteristics of video sensors within video communication devices. In other cases, the low-complexity automatic ROI detection may be based on motion information for a video frame and a different video frame of the video sequence. The disclosed techniques include a video processing technique capable of tuning and enhancing video sensor calibration, camera processing, ROI detection, and ROI video processing within a video communication device based on characteristics of a specific video sensor. The disclosed techniques also include a sensor-based ROI detection technique that uses video sensor statistics and camera processing side-information to improve ROI detection accuracy. The disclosed techniques also include a motion-based ROI detection technique that uses motion information obtained during motion estimation in video processing.
摘要翻译： 本公开涉及基于视频序列的视频帧内的低复杂度自动ROI检测的感兴趣区域（ROI）视频处理技术。 低复杂度的自动ROI检测可以基于视频通信设备内的视频传感器的特性。 在其他情况下，低复杂度自动ROI检测可以基于视频帧的运动信息和视频序列的不同视频帧。 所公开的技术包括基于特定视频传感器的特性，能够在视频通信设备内调整和增强视频传感器校准，相机处理，ROI检测和ROI视频处理的视频处理技术。 所公开的技术还包括基于传感器的ROI检测技术，其使用视频传感器统计和相机处理侧信息来提高ROI检测精度。 所公开的技术还包括基于运动的ROI检测技术，其使用在视频处理中的运动估计期间获得的运动信息。
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公开(公告)号：US20070268501A1
公开(公告)日：2007-11-22
申请号：US11436470
申请日：2006-05-17
IPC分类号： G06T1/00
CPC分类号： H04N5/235 , G06T5/006 , G06T7/11 , G06T7/194 , G06T2207/10008 , G06T2207/30176 , H04N1/387
摘要： In accordance with one embodiment of the disclosure, apparatus are provided, including an image processor, a unique image processing mechanism, and a unique image processing activation mechanism. The image processor includes the unique image processing mechanism, which processes a certain type of image. The unique image processing activation mechanism causes the unique image processing mechanism to process a given image.
摘要翻译： 根据本公开的一个实施例，提供了包括图像处理器，独特图像处理机构和唯一图像处理激活机构的装置。 图像处理器包括处理特定类型图像的唯一图像处理机构。 独特的图像处理激活机制使独特的图像处理机制处理给定的图像。
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公开(公告)号：US08824827B2
公开(公告)日：2014-09-02
申请号：US13344514
申请日：2012-01-05
CPC分类号： H04N5/2351 , G06K9/34 , G06K9/4642 , H04N1/628 , H04N5/23219 , H04N9/045
摘要： Systems, methods and apparatus for image processing by classifying pixels are described. In some systems, an exposure control operation is performed according to the pixel classifications. In some cases, the pixels are classified according to a predetermined segmentation of a color space, based on predicted sensor responses.
摘要翻译： 描述了通过对像素进行分类的图像处理的系统，方法和装置。 在一些系统中，根据像素分类执行曝光控制操作。 在一些情况下，基于预测的传感器响应，根据颜色空间的预定分割来对像素进行分类。
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6.发明申请SYSTEMS, METHODS, AND APPARATUS FOR IMAGE PROCESSING, FOR COLOR CLASSIFICATION, AND FOR SKIN COLOR DETECTION 有权用于图像处理，颜色分类和皮肤颜色检测的系统，方法和装置公开(公告)号：US20120176507A1
公开(公告)日：2012-07-12
申请号：US13424795
申请日：2012-03-20
CPC分类号： G06T7/408 , G06K9/4652 , G06T7/90
摘要： Embodiments include a method of image processing including decomposing a reflectance spectrum for a test surface into a linear combination of reflectance spectra of a set of test targets. The coefficient vector calculated in this decomposition is used to predict a response of an imaging sensor to the test surface. A plurality of such predicted responses may be used for various applications involving color detection and/or classification, including human skin tone detection.
摘要翻译： 实施例包括图像处理方法，包括将测试表面的反射光谱分解为一组测试对象的反射光谱的线性组合。 在该分解中计算的系数向量用于预测成像传感器对测试表面的响应。 多个这样的预测响应可以用于涉及颜色检测和/或分类的各种应用，包括人肤色检测。
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7.发明授权Skin color prioritized automatic focus control via sensor-dependent skin color detection 失效皮肤颜色通过传感器相关的皮肤颜色检测优先考虑自动对焦公开(公告)号：US07728904B2
公开(公告)日：2010-06-01
申请号：US11402481
申请日：2006-04-11
IPC分类号： H04N5/232
CPC分类号： G03B13/36 , G03B7/08 , G06K9/4652 , H04N5/23212
摘要： The disclosure is directed to techniques for automatic focus control. The automatic focus control techniques prioritize focus of a camera based on skin tone using a skin color detection approach which is intrinsically image sensor-dependent. Sensor-dependent skin color detection to support automatic skin tone prioritized focus control in a camera can enhance the focus of people in the scene. The techniques may be especially useful in digital video camera design, digital still photo camera design, and sensor applications involving people tracking. Sensor-dependent skin color detection is performed once a specific sensor is characterized by taking several raw images of a standard color test target in controlled illumination conditions. Sensor-dependent skin color detection can provide high detection precision and reliability. With sensor-dependent skin color detection, the focus of a camera can be automatically adjusted to prioritize regions of an image containing skin tones.
摘要翻译： 本公开涉及用于自动聚焦控制的技术。 自动聚焦控制技术使用肤色检测方法基于肤色优先考虑摄像机的焦点，该肤色检测方法本质上是与图像传感器相关的。 传感器相关的皮肤颜色检测功能，可以在摄像机中支持自动肤色优先对焦控制，增强人们对现场的关注。 这些技术在数字摄像机设计，数码相机照相机设计和涉及人物跟踪的传感器应用中尤其有用。 一旦特定传感器的特征在于在受控照明条件下拍摄标准颜色测试目标的几个原始图像，则执行依赖于传感器的皮肤颜色检测。 传感器相关的皮肤颜色检测可以提供高检测精度和可靠性。 使用与传感器相关的皮肤颜色检测功能，可以自动调整相机的焦点，以优先考虑包含肤色的图像区域。
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公开(公告)号：US08498332B2
公开(公告)日：2013-07-30
申请号：US11533916
申请日：2006-09-21
申请人： Xiaoyun Jiang , Shuxue Quan , Chinchuan Andrew Chiu , Szepo Robert Hung , Ruben M. Velarde , Ying Xie Noyes
发明人： Xiaoyun Jiang , Shuxue Quan , Chinchuan Andrew Chiu , Szepo Robert Hung , Ruben M. Velarde , Ying Xie Noyes
IPC分类号： H04N11/02
CPC分类号： H04N9/646
摘要： Apparatus are provided including an image signal carrier, a luminance information evaluator, and a chrominance information modifier. The image signal carrier is encoded with an image signal including luminance information and chrominance information. The luminance information evaluator evaluates the luminance information in the image signal for a given region within the image to identify when the given region is one of substantially white and substantially dark. The chrominance information modifier is provided to modify the chrominance information corresponding to the given region when the given region is one of substantially white and substantially dark.
摘要翻译： 提供了包括图像信号载体，亮度信息评估器和色度信息修饰符的装置。 图像信号载体用包括亮度信息和色度信息的图像信号进行编码。 亮度信息评估器评估图像内的给定区域的图像信号中的亮度信息，以识别给定区域何时是基本上白色且基本上暗的一个。 提供色度信息修改器以在给定区域是基本上白色且基本上暗的区域之一时修改对应于给定区域的色度信息。
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公开(公告)号：US08306336B2
公开(公告)日：2012-11-06
申请号：US11436470
申请日：2006-05-17
IPC分类号： G06K9/68
CPC分类号： H04N5/235 , G06T5/006 , G06T7/11 , G06T7/194 , G06T2207/10008 , G06T2207/30176 , H04N1/387
摘要： In accordance with one embodiment of the disclosure, apparatus are provided, including an image processor, a unique image processing mechanism, and a unique image processing activation mechanism. The image processor includes the unique image processing mechanism, which processes a certain type of image. The unique image processing activation mechanism causes the unique image processing mechanism to process a given image.
摘要翻译： 根据本公开的一个实施例，提供了包括图像处理器，独特图像处理机构和唯一图像处理激活机构的装置。 图像处理器包括处理特定类型图像的唯一图像处理机构。 独特的图像处理激活机制使独特的图像处理机制处理给定的图像。
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公开(公告)号：US07800698B2
公开(公告)日：2010-09-21
申请号：US11414043
申请日：2006-04-27
IPC分类号： H04N5/44
CPC分类号： H04N9/67 , H04N1/6086 , H04N1/628
摘要： Automatic weight adjustment (AWA) to derive an optimal color correction matrix may address unbalanced color reproduction performance among different illuminations and/or unbalanced color reproduction performance for specific memory colors. AWA may emphasize particular colors and equalize color performance. AWA may be implemented in an automatic process with optional manual operation.
摘要翻译： 导出最佳颜色校正矩阵的自动权重调整（AWA）可以解决特定存储器颜色的不同照明之间的不平衡色彩再现性能和/或不平衡色彩再现性能。 AWA可以强调特定的颜色并均衡色彩表现。 AWA可以在具有可选手动操作的自动过程中实现。
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