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1. 发明授权

US07545421B2 Apparatus, system, and method for optimizing gamma curves for digital image devices 有权
标题翻译：用于优化数字图像设备的伽马曲线的装置，系统和方法
公开(公告)号：US07545421B2
公开(公告)日：2009-06-09
申请号：US11146484
申请日：2005-06-06
申请人： Shuxue Quan , Andrew Chinchuan Chiu , Xiaoyun Jiang
发明人： Shuxue Quan , Andrew Chinchuan Chiu , Xiaoyun Jiang
IPC分类号： H04N5/202 , H04N17/00 , H04N17/02
CPC分类号： H04N9/69 , H04N1/6077 , H04N1/6083
摘要： An apparatus, system, and method provide optimization of color space conversion using a joint quality metric representing differences between reference human visual representations and converted device captured image representations in a perceptual uniform color space, where the conversion includes transforming a nonstandard color space (RGB) to a perceptual standard color space (sRGB) and where the joint quality metric includes a color portion, a noise portion, and a contrast portion. An optical sensor produces a digital reference signal when capturing an image of a reference source such as a Macbeth ColorChecker color rendition chart. After white balancing and color correcting the digital reference signal, the gamma curve parameters are determined by minimizing the joint quality metric which is based on differences, within a uniform perceptual color space such as CIELAB, between the gamma curve compensated signal and the standard values for the reference source. The noise portion and contrast portion take into account the noise and the contrast of the gamma curve compensated signal resulting in a gamma curve parameter that is optimized with respect to color, noise, and contrast.
摘要翻译：装置，系统和方法使用表示参考人类视觉表示之间的差异的联合质量度量和感知统一色彩空间中的转换器件捕获图像表示来提供色彩空间转换的优化，其中转换包括变换非标准颜色空间（RGB）到感知标准色彩空间（sRGB），并且其中联合质量度量包括颜色部分，噪声部分和对比度部分。当捕获诸如Macbeth ColorChecker颜色再现图表的参考源的图像时，光学传感器产生数字参考信号。在白平衡和颜色校正数字参考信号之后，伽马曲线参数通过最小化基于伽马曲线补偿信号和标准值之间的统一感知色彩空间（例如CIELAB）内的差异的联合质量度量来确定参考来源。噪声部分和对比部分考虑了伽马曲线补偿信号的噪声和对比度，导致相对于颜色，噪声和对比度优化的伽马曲线参数。

2. 发明授权

US6072900A Automated visual inspection apparatus for detecting defects and for measuring defect size 失效
公开(公告)号：US6072900A
公开(公告)日：2000-06-06
申请号：US196397
申请日：1998-11-19
申请人： Chinchuan Chiu , Philip Paolella , Michael Leary , Joseph A. Marcanio , Fusao Ishii
发明人： Chinchuan Chiu , Philip Paolella , Michael Leary , Joseph A. Marcanio , Fusao Ishii
IPC分类号： G06T7/00 , G06K9/00
CPC分类号： G06T7/0006 , G06T2207/10012 , G06T2207/30121
摘要： Apparatus for detecting etch defects in an object having a plurality of openings by generating an image signal of the object representing light intensity values of a plurality of pixels, processing the image signal to form data signals representing light intensity values of groups of pixels, filtering the data signals to remove signals representing the ends of the openings, and pairing two data signals when the groups of pixels represented thereby represent an etch defect.

3. 发明授权

US5870203A Adaptive lighting control apparatus for illuminating a variable-speed web for inspection 失效
公开(公告)号：US5870203A
公开(公告)日：1999-02-09
申请号：US616377
申请日：1996-03-15
申请人： Chinchuan Chiu , Wing Loom Chek , Philip Paolella
发明人： Chinchuan Chiu , Wing Loom Chek , Philip Paolella
IPC分类号： G01N21/89
CPC分类号： G01N21/8903
摘要： A lighting control apparatus for illuminating a moving variable-speed web for inspection with a camera is provided. The apparatus is comprised of a detecting device for detecting the positioning of the web; a lighting device, aligned with the camera, for emitting a light to illuminate the web; a calculating device for calculating the speed of the web; and a control device which controls the emission of light by the lighting device as a function of the speed of the web.

4. 发明申请

US20070104472A1 Skin color prioritized automatic focus control via sensor-dependent skin color detection 失效
标题翻译：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：US20070104472A1
公开(公告)日：2007-05-10
申请号：US11402481
申请日：2006-04-11
申请人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
发明人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
IPC分类号： G03B17/00
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。

5. 发明申请

US20070043527A1 Systems, methods, and apparatus for image processing, for color classification, and for skin color detection 有权
标题翻译：用于图像处理，颜色分类和肤色检测的系统，方法和装置
公开(公告)号：US20070043527A1
公开(公告)日：2007-02-22
申请号：US11208261
申请日：2005-08-18
申请人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
发明人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
IPC分类号： G01C25/00 , G01D18/00 , G01C19/00 , G01F25/00 , G06F19/00 , G01P21/00 , G01D21/00 , G01M19/00 , G01R35/00
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。

6. 发明授权

US6031931A Automated visual inspection apparatus 失效
标题翻译：自动视觉检查仪
公开(公告)号：US6031931A
公开(公告)日：2000-02-29
申请号：US615474
申请日：1996-03-15
申请人： Chinchuan Chiu , Philip Paolella , Michael Leary , Joseph A. Marcanio , Fusao Ishii
发明人： Chinchuan Chiu , Philip Paolella , Michael Leary , Joseph A. Marcanio , Fusao Ishii
IPC分类号： G06T7/00 , G06K9/00 , G06K9/48
CPC分类号： G06T7/0085 , G06T2207/30164
摘要： Apparatus for determining at least one edge of an object having a plurality of openings with respective edges. An imaging device generates an image signal of the object to represent light intensity values of a plurality of pixels, the image signal being processed to estimate a linear relationship derived from the light intensity values of a predetermined number of the pixels. A determining device determines whether the linear relationship includes at least one light intensity value corresponding to an edge.
摘要翻译：用于确定具有相应边缘的多个开口的物体的至少一个边缘的装置。成像装置生成对象的图像信号以表示多个像素的光强度值，该图像信号被处理以估计从预定数量的像素的光强度值导出的线性关系。确定装置确定线性关系是否包括对应于边缘的至少一个光强度值。

7. 发明申请

US20070216777A1 Systems, methods, and apparatus for exposure control 有权
标题翻译：用于曝光控制的系统，方法和装置
公开(公告)号：US20070216777A1
公开(公告)日：2007-09-20
申请号：US11378720
申请日：2006-03-17
申请人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
发明人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
IPC分类号： H04N5/228
CPC分类号： H04N5/2351 , G06K9/34 , G06K9/4642 , H04N1/628 , H04N5/23219 , H04N9/045
摘要： Embodiments include methods of image processing in which pixels of an image are classified according to color. An exposure control operation is performed according to the pixel classifications. In one example, the pixels are classified according to a predetermined segmentation of a color space, based on predicted sensor responses. In another example, the pixels are classified according to a color selected from among at least two colors.
摘要翻译：实施例包括图像处理的方法，其中图像的像素根据颜色分类。根据像素分类进行曝光控制动作。在一个示例中，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。在另一示例中，根据从至少两种颜色中选择的颜色对像素进行分类。

8. 发明申请

US20070147817A1 Camera feature with divided autofocus search range 审中-公开
标题翻译：相机功能具有分割自动对焦搜索范围
公开(公告)号：US20070147817A1
公开(公告)日：2007-06-28
申请号：US11471056
申请日：2006-06-19
申请人： Jingqiang Li , Ying Noyes , Chinchuan Chiu
发明人： Jingqiang Li , Ying Noyes , Chinchuan Chiu
IPC分类号： G03B3/10
CPC分类号： G03B3/10 , G02B7/282
摘要： Apparatus are provided, including an autofocus mechanism. The autofocus mechanism includes an autofocus preliminary operation mechanism and an autofocus continuation mechanism. The autofocus preliminary operation mechanism starts an autofocus of a lens assembly on a given target by causing a focus quality determiner to determine the quality of focus of the lens assembly on the given target while the position of the lens unit is in one focus range and causing an adjustment controller to effect a preliminary adjustment of the lens assembly position within the same one focus range. The autofocus continuation mechanism automatically, upon a lack of successful focus by the autofocus preliminary operation mechanism, continues an autofocus of the lens assembly on the given target by causing the adjustment controller to effect a continued adjustment of the lens assembly position from the one focus range to a different focus range while the focus quality determiner continues to determine the quality of the focus.
摘要翻译：提供了包括自动对焦机构的设备。自动对焦机构包括自动聚焦预备操作机构和自动对焦延续机构。自动聚焦预备操作机构通过使焦点质量确定器在透镜单元的位置处于一个对焦范围内来确定透镜组件在给定目标上的焦点质量来启动透镜组件在给定目标上的自动聚焦，并导致调整控制器，用于在相同的一个聚焦范围内实现对镜头组件位置的初步调整。自动聚焦延续机构在自动聚焦预备操作机构缺少成功的焦点时自动地通过使调节控制器实现透镜组件位置从一个聚焦范围的持续调节来继续透镜组件在给定目标上的自动聚焦到不同的对焦范围，而焦点质量确定器继续确定焦点的质量。

9. 发明申请

US20070263098A1 Weight adjustment in color correction 有权
标题翻译：颜色校正中的重量调整
公开(公告)号：US20070263098A1
公开(公告)日：2007-11-15
申请号：US11414043
申请日：2006-04-27
申请人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
发明人： Shuxue Quan , Chinchuan Chiu , Xiaoyun Jiang
IPC分类号： H04N5/228
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。

10. 发明申请

US20060164523A1 Luma adaptation for digital image processing 有权
标题翻译：亮度适应数字图像处理
公开(公告)号：US20060164523A1
公开(公告)日：2006-07-27
申请号：US11052710
申请日：2005-01-27
申请人： Xiaoyun Jiang , Chinchuan Chiu
发明人： Xiaoyun Jiang , Chinchuan Chiu
IPC分类号： H04N9/68
CPC分类号： H04N9/646 , G06T5/009 , G06T5/40 , G06T2207/10024 , H04N5/2355
摘要： Luma adaptation for digital image processing. Luminance signals are separated from sensor RGB signals representing an image. A transfer function is obtained from the luminance signals. Using the transfer function, the sensor RGB signals are adjusted to adapt the luma of the image.
摘要翻译：亮度适应数字图像处理。亮度信号与表示图像的传感器RGB信号分离。从亮度信号获得传递函数。使用传递函数，调整传感器RGB信号以适应图像的亮度。

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