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1. 发明授权

US07576783B2 Confidence based weighting for color interpolation 有权
标题翻译：基于置信度的颜色插值加权
公开(公告)号：US07576783B2
公开(公告)日：2009-08-18
申请号：US11051159
申请日：2005-02-04
申请人： Hau Hwang , King-Chung Lai , Ananthapadmanabhan Kandhadai
发明人： Hau Hwang , King-Chung Lai , Ananthapadmanabhan Kandhadai
IPC分类号： H04N5/228
CPC分类号： H04N9/045 , H04N2209/046
摘要： A color interpolation method uses a first interpolation function (F1) to obtain a first missing color sub-pixel value for a pixel of interest and uses a second interpolation function (F2) to obtain a second missing color sub-pixel value for the pixel of interest. First metric (V) indicative of an edge extending in a first direction (D1) is obtained. Second metric (H) indicative of an edge extending in a second direction (D2) is obtained. The two metrics are used to generate first and second weighting factors (k1, k2). A confidence factor value can be used to place more emphasis on one metric versus the other metric in the determination of the weighting factors. In one embodiment, the sub-pixel value being interpolated is the weighted sum of the first weighting factor multiplied by the first missing color sub-pixel value plus the second weighting factor multiplied by the second missing color sub-pixel value.
摘要翻译：颜色插值方法使用第一内插函数（F1）获得感兴趣像素的第一缺失颜色子像素值，并且使用第二内插函数（F2）来获得第二内插函数（F2）的像素的第二缺失颜色子像素值利益。获得指示沿第一方向（D1）延伸的边缘的第一度量（V）。获得指示沿第二方向（D2）延伸的边缘的第二度量（H）。这两个度量用于产生第一和第二加权因子（k1，k2）。在确定加权因子时，可以使用置信因子值来更加强调一个指标而不是其他指标。在一个实施例中，被内插的子像素值是第一加权因子乘以第一缺失颜色子像素值加上乘以第二缺失颜色子像素值的第二加权因子的加权和。

2. 发明申请

US20060176375A1 Confidence based weighting for color interpolation 有权
标题翻译：基于置信度的颜色插值加权
公开(公告)号：US20060176375A1
公开(公告)日：2006-08-10
申请号：US11051159
申请日：2005-02-04
申请人： Hau Hwang , King-Chung Lai , Ananthapadmanabhan Kandhadai
发明人： Hau Hwang , King-Chung Lai , Ananthapadmanabhan Kandhadai
IPC分类号： H04N5/228
CPC分类号： H04N9/045 , H04N2209/046
摘要： A color interpolation method uses a first interpolation function (F1) to obtain a first missing color sub-pixel value for a pixel of interest and uses a second interpolation function (F2) to obtain a second missing color sub-pixel value for the pixel of interest. First metric (V) indicative of an edge extending in a first direction (D1) is obtained. Second metric (H) indicative of an edge extending in a second direction (D2) is obtained. The two metrics are used to generate first and second weighting factors (k1, k2). A confidence factor value can be used to place more emphasis on one metric versus the other metric in the determination of the weighting factors. In one embodiment, the sub-pixel value being interpolated is the weighted sum of the first weighting factor multiplied by the first missing color sub-pixel value plus the second weighting factor multiplied by the second missing color sub-pixel value.
摘要翻译：颜色插值方法使用第一内插函数（F 1）来获得感兴趣像素的第一缺失颜色子像素值，并且使用第二内插函数（F 2）来获得第二内插函数感兴趣的像素获得指示沿第一方向（D 1）延伸的边缘的第一度量（V）。获得指示沿第二方向（D 2）延伸的边缘的第二度量（H）。这两个度量用于产生第一和第二加权因子（k 1，k 2）。在确定加权因子时，可以使用置信因子值来更加强调一个指标而不是其他指标。在一个实施例中，被内插的子像素值是第一加权因子乘以第一缺失颜色子像素值加上乘以第二缺失颜色子像素值的第二加权因子的加权和。

3. 发明授权

US08366004B2 Barcode detection based on morphological operations 有权
标题翻译：基于形态运算的条形码检测
公开(公告)号：US08366004B2
公开(公告)日：2013-02-05
申请号：US12035653
申请日：2008-02-22
申请人： Hsiang-Tsun Li , Jingqiang Li , Hau Hwang , Xiaoyun Jiang , Joseph Cheung
发明人： Hsiang-Tsun Li , Jingqiang Li , Hau Hwang , Xiaoyun Jiang , Joseph Cheung
IPC分类号： G06K5/04
CPC分类号： G06K7/10 , G06K7/1443 , G06K7/1452
摘要： This disclosure describes techniques for detecting a barcode within an image. An image processor may, for example, process an image to detect regions within the image that may be barcodes. The image processor may identify regions of the image that exhibit a high concentration of edges and a high concentration of pixels with low optical intensity co-instantaneously as potential barcodes. The image processor may identify the regions using a number of morphological operations. The image processor may then determine whether the identified regions are actually barcodes by verifying whether the region have unique barcode features. The barcode detection techniques described in this disclosure may be independent of barcode size, location and orientation within the image. Moreover, the use of morphological operations results in faster and more computationally efficient barcode detection, as well as lower computational complexity.
摘要翻译：本公开描述了用于检测图像内的条形码的技术。图像处理器可以例如处理图像以检测图像内可能是条形码的区域。图像处理器可以识别呈现高浓度边缘的图像区域和具有低光强度的高浓度像素作为潜在条形码。图像处理器可以使用多个形态操作来识别区域。然后，图像处理器可以通过验证该区域是否具有独特的条形码特征来确定所识别的区域是否实际上是条形码。本公开中描述的条形码检测技术可以独立于图像内的条形码尺寸，位置和取向。此外，使用形态学运算导致更快和更有计算效率的条形码检测，以及较低的计算复杂度。

4. 发明申请

US20120120256A1 PARALLEL IMAGE PROCESSING USING MULTIPLE PROCESSORS 有权
标题翻译：使用多个处理器的并行图像处理
公开(公告)号：US20120120256A1
公开(公告)日：2012-05-17
申请号：US12944971
申请日：2010-11-12
申请人： Hau Hwang , Joseph Cheung , Sergiu R. Goma
发明人： Hau Hwang , Joseph Cheung , Sergiu R. Goma
IPC分类号： H04N5/225
CPC分类号： G06T1/20 , H04N5/2258 , H04N5/23229
摘要： An electronic device for parallel image processing using multiple processors is disclosed. The electronic device includes multiple image sensors for providing image data. The electronic device also includes multiple processors for processing segmented image data to produce processed segmented image data. Each processor is dedicated to one of the image sensors. A multiple processor interface is also included. The multiple processor interface maps the image data to the processors, segments the image data to produce the segmented image data and synchronizes the segmented image data to processor clock rates.
摘要翻译：公开了一种使用多个处理器并行图像处理的电子设备。电子设备包括用于提供图像数据的多个图像传感器。电子设备还包括用于处理分段图像数据以产生经处理的分割图像数据的多个处理器。每个处理器专用于其中一个图像传感器。还包括多处理器接口。多处理器接口将图像数据映射到处理器，对图像数据进行分段以产生分割的图像数据，并将分割的图像数据与处理器时钟速率同步。

5. 发明授权

US08098957B2 Shared block comparison architechture for image registration and video coding 有权
标题翻译：共享块比较建筑图像注册和视频编码
公开(公告)号：US08098957B2
公开(公告)日：2012-01-17
申请号：US12030820
申请日：2008-02-13
申请人： Hau Hwang , Hsiang-Tsun Li , Kalin Atanassov
发明人： Hau Hwang , Hsiang-Tsun Li , Kalin Atanassov
IPC分类号： G06K9/32 , G06K9/46 , H04N7/12
CPC分类号： H04N5/23248 , G06T7/30 , G06T2207/10016 , G06T2207/20021 , H04N5/23277 , H04N5/2355 , H04N5/2357 , H04N19/43 , H04N19/51 , H04N19/537 , H04N19/85
摘要： This disclosure describes an efficient architecture for an imaging device that supports image registration for still images and video coding of a video sequence. For image registration, the described architecture uses block-based comparisons of image blocks of a captured image relative to blocks of another reference image to support image registration on a block-by-block basis. For video coding, the described architecture uses block-based comparisons, e.g., to support for motion estimation and motion compensation. According to this disclosure, a common block comparison engine is used on a shared basis for both block-based image registration and block-based video coding. In this way, a hardware unit designed for block-based comparisons may be implemented so as to work in both the image registration process for still images and the video coding process for coding a video sequence.
摘要翻译：本公开描述了一种用于成像设备的有效架构，其支持用于静止图像的图像注册和视频序列的视频编码。对于图像注册，所描述的架构使用与相对于另一参考图像的块相关的捕获图像的图像块的基于块的比较，以在逐块的基础上支持图像注册。对于视频编码，所描述的架构使用基于块的比较，例如支持运动估计和运动补偿。根据本公开，公共块比较引擎在基于块的图像配准和基于块的视频编码的共享的基础上被使用。以这种方式，可以实现设计用于基于块的比较的硬件单元，以便在静止图像的图像注册处理和用于编码视频序列的视频编码处理两者中工作。

6. 发明申请

US20090202158A1 ROTATIONAL TRANSCODING FOR JPEG OR OTHER CODING STANDARDS 有权
标题翻译： JPEG或其他编码标准的转换
公开(公告)号：US20090202158A1
公开(公告)日：2009-08-13
申请号：US12030826
申请日：2008-02-13
申请人： Hau Hwang , Hsiang-Tsun Li , Shizhong Liu
发明人： Hau Hwang , Hsiang-Tsun Li , Shizhong Liu
IPC分类号： G06K9/36
CPC分类号： H04N19/00775 , G06T3/602 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/40 , H04N19/48 , H04N19/59 , H04N19/60
摘要： This disclosure describes techniques for rotating an encoded image, such as an image encoded according to a JPEG standard. In one example, a method for rotating an encoded image comprising reordering minimum coded units (MCUs) of the encoded image according to a specified rotation of the encoded image, rotating image data within the MCUs according to the specified rotation, and generating a rotated version of the encoded image comprising the reordered MCUs and the rotated image data within the MCUs.
摘要翻译：本公开描述了用于旋转编码图像的技术，例如根据JPEG标准编码的图像。在一个示例中，一种用于旋转编码图像的方法，包括根据编码图像的指定旋转对编码图像的最小编码单元（MCU）进行排序，根据指定的旋转旋转图像数据，并产生旋转版本包括重新排序的MCU和MCU内旋转的图像数据的编码图像。

7. 发明授权

US09001227B2 Combining data from multiple image sensors 有权
标题翻译：组合来自多个图像传感器的数据
公开(公告)号：US09001227B2
公开(公告)日：2015-04-07
申请号：US13079629
申请日：2011-04-04
申请人： Milivoje Aleksic , Sergiu R. Goma , Hau Hwang , Joseph Cheung
发明人： Milivoje Aleksic , Sergiu R. Goma , Hau Hwang , Joseph Cheung
IPC分类号： H04N5/228 , H04N5/225 , H04N5/235 , H04N5/247 , H04N5/232 , H04N13/00 , H04N13/02 , H04N9/04
CPC分类号： H04N5/247 , H04N5/2258 , H04N5/232 , H04N5/23238 , H04N9/045 , H04N13/161 , H04N13/239 , H04N13/296
摘要： A method of combining data from multiple sensors is disclosed. The method includes providing a common control signal to multiple image sensors. Each of the multiple image sensors is responsive to the common control signal to generate image data. The method also includes receiving synchronized data output from each of the multiple image sensors.
摘要翻译：公开了一种组合来自多个传感器的数据的方法。该方法包括向多个图像传感器提供公共控制信号。多个图像传感器中的每一个响应于公共控制信号以产生图像数据。该方法还包括接收从多个图像传感器中的每一个输出的同步数据。

8. 发明授权

US08229212B2 Interpolation system and method 有权
标题翻译：插值系统和方法
公开(公告)号：US08229212B2
公开(公告)日：2012-07-24
申请号：US12206904
申请日：2008-09-09
申请人： Hasib Ahmed Siddiqui , Hau Hwang
发明人： Hasib Ahmed Siddiqui , Hau Hwang
IPC分类号： G06K9/20 , H04N9/45 , H04N9/64
CPC分类号： G06T3/4015
摘要： Interpolations systems and methods are disclosed. In a particular embodiment, a system is disclosed that includes an input to receive image data. The system also includes an image processing system responsive to the image data and including a demosaicing module. The demosaicing module is configured to use adaptive bi-cubic spline interpolation. The system further includes an output responsive to the image processing system and adapted to provide output data.
摘要翻译：披露了插值系统和方法。在特定实施例中，公开了一种包括用于接收图像数据的输入的系统。该系统还包括响应图像数据并包括去马赛克模块的图像处理系统。去马赛克模块被配置为使用自适应双三次样条插值。系统还包括响应于图像处理系统并适于提供输出数据的输出。

9. 发明授权

US08208044B2 Bad pixel cluster detection 失效
标题翻译：坏像素群检测
公开(公告)号：US08208044B2
公开(公告)日：2012-06-26
申请号：US12233413
申请日：2008-09-18
申请人： Kalin Atanassov , Hsiang-Tsun Li , Hau Hwang , Babak Forutanpour
发明人： Kalin Atanassov , Hsiang-Tsun Li , Hau Hwang , Babak Forutanpour
IPC分类号： H04N5/217
CPC分类号： H04N5/3675
摘要： Systems and methods of bad pixel cluster detection are disclosed. In a particular embodiment, a method includes determining a correlation value corresponding to a correlation coefficient between image data and at least one bad pixel cluster pattern, and detecting a bad pixel cluster corresponding to the at least one bad pixel cluster pattern based on the correlation value exceeding a threshold.
摘要翻译：公开了不良像素簇检测的系统和方法。在特定实施例中，一种方法包括：确定与图像数据和至少一个不良像素簇图案之间的相关系数对应的相关值，以及基于相关值检测与至少一个不良像素簇图案对应的不良像素簇超过阈值。

10. 发明授权

US08111300B2 System and method to selectively combine video frame image data 有权
标题翻译：选择性地组合视频帧图像数据的系统和方法
公开(公告)号：US08111300B2
公开(公告)日：2012-02-07
申请号：US12428354
申请日：2009-04-22
申请人： Hau Hwang , Hsiang-Tsun Li , Kalin M. Atanassov
发明人： Hau Hwang , Hsiang-Tsun Li , Kalin M. Atanassov
IPC分类号： H04N5/228
CPC分类号： H04N5/23248 , G06T5/50 , G06T7/32 , G06T2207/10016 , G06T2207/20016 , G06T2207/20021 , H04N5/23232 , H04N5/235 , H04N5/2355
摘要： Systems and methods to selectively combine video frame image data are disclosed. First image data corresponding to a first video frame and second image data corresponding to a second video frame are received from an image sensor. The second image data is adjusted by at least partially compensating for offsets between portions of the first image data with respect to corresponding portions of the second image data to produce adjusted second image data. Combined image data corresponding to a combined video frame is generated by performing a hierarchical combining operation on the first image data and the adjusted second image data.
摘要翻译：公开了选择性地组合视频帧图像数据的系统和方法。从图像传感器接收对应于第一视频帧的第一图像数据和对应于第二视频帧的第二图像数据。通过至少部分地补偿第一图像数据的部分之间相对于第二图像数据的相应部分的偏移来调整第二图像数据，以产生经调整的第二图像数据。通过对第一图像数据和经调整的第二图像数据执行分层组合操作来生成与组合视频帧相对应的组合图像数据。

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