公开(公告)号：US20100328200A1

公开(公告)日：2010-12-30

申请号：US12822187

申请日：2010-06-24

申请人： Chi-Chang Yu ,  Chih-Yang Tzeng ,  Homer H. Chen ,  Meng-Chun Lin ,  I-Hau Yeh ,  Hong-Cheng Chen

发明人： Chi-Chang Yu ,  Chih-Yang Tzeng ,  Homer H. Chen ,  Meng-Chun Lin ,  I-Hau Yeh ,  Hong-Cheng Chen

IPC分类号： G06F3/033

CPC分类号： G06F3/0386

摘要： A device for converting display screen into touch panel screen includes a projection screen; an image projection unit for projecting an image on the projection screen; a light pointer for emitting a light spot signal of a specific wavelength on the projection screen; an image detecting unit, which includes a fisheye lens for receiving the image on the projection screen to generate a fisheye distorted image; and an optical filter for filtering out the optical energy except the light spot signal of the specific wavelength; an image processing unit, coupled to the image detecting unit, for calculating a first position of the light spot on the projection screen according to the fisheye distorted image; and a message transmitting unit, coupled to the image processing unit, for outputting a touch panel signal according to the calculating result of the image processing unit.

摘要翻译： 用于将显示屏转换成触摸面板屏幕的装置包括投影屏幕; 图像投影单元，用于在投影屏幕上投影图像; 用于在投影屏幕上发射特定波长的光点信号的光指示器; 图像检测单元，其包括用于在投影屏幕上接收图像以产生鱼眼失真图像的鱼眼镜头; 以及用于滤除特定波长的光点信号以外的光能的滤光器; 图像处理单元，耦合到图像检测单元，用于根据鱼眼失真图像计算投影屏幕上的光点的第一位置; 以及消息发送单元，耦合到所述图像处理单元，用于根据所述图像处理单元的计算结果输出触摸面板信号。

公开(公告)号：US20120114262A1

公开(公告)日：2012-05-10

申请号：US13091137

申请日：2011-04-21

申请人： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

发明人： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

IPC分类号： G06K9/40

CPC分类号： G06T5/006 ,  G06T2207/20021

摘要： The present invention provides an image correction method and a related image correction system which can correct images captured via a fisheye lens or a ultra-wide angle lens camera so as to alleviate geometrical distortion in the images, and geometrically adjust the images according to user's requirements. Wherein, the present invention further enhances the processing performance of image correction computation by a memory allocation technique.

摘要翻译： 本发明提供一种图像校正方法和相关图像校正系统，其可以校正经由鱼眼镜头或超广角镜头相机拍摄的图像，以减轻图像中的几何失真，并根据用户要求进行几何调整图像 。 其中，本发明通过存储器分配技术进一步提高图像校正计算的处理性能。

公开(公告)号：US09153014B2

公开(公告)日：2015-10-06

申请号：US13091137

申请日：2011-04-21

申请人： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

发明人： Chi-Chang Yu ,  Meng-Chun Lin ,  Homer H. Chen

IPC分类号： G06K9/32 ,  G06T5/00

CPC分类号： G06T5/006 ,  G06T2207/20021

摘要： The present invention provides an image correction method and a related image correction system which can correct images captured via a fisheye lens or a ultra-wide angle lens camera so as to alleviate geometrical distortion in the images, and geometrically adjust the images according to user's requirements. Wherein, the present invention further enhances the processing performance of image correction computation by a memory allocation technique.

摘要翻译： 本发明提供一种图像校正方法和相关图像校正系统，其可以校正经由鱼眼镜头或超广角镜头相机拍摄的图像，以减轻图像中的几何失真，并根据用户要求进行几何调整图像 。 其中，本发明通过存储器分配技术进一步提高图像校正计算的处理性能。

公开(公告)号：US20090129694A1

公开(公告)日：2009-05-21

申请号：US12139808

申请日：2008-06-16

申请人： Ming-Yang WU ,  Brian Sung ,  Chi-Chang Yu ,  Chia-Kai Liang

发明人： Ming-Yang WU ,  Brian Sung ,  Chi-Chang Yu ,  Chia-Kai Liang

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T5/20

摘要： A method and an apparatus thereof for enhancing a digital image. The method includes the steps of: capturing a pixel data block; determining a searching region and a reference window with the pixel data block serving as a center; dividing the searching region into compared windows each having a size equal to a size of the reference window; sequentially comparing the compared windows to the reference window to determine corresponding weighting values according to compared results; multiplying calculated blocks in the compared windows by the corresponding weighting values of the blocks to obtain weighted blocks; accumulating the weighted blocks to obtain a summed pixel data block; accumulating the weighting values to obtain a summed weighting value; and normalizing the summed pixel data block according to the summed weighting value to obtain an image-enhanced pixel data block.

摘要翻译： 一种用于增强数字图像的方法和装置。 该方法包括以下步骤：捕获像素数据块; 以所述像素数据块为中心确定搜索区域和参考窗口; 将搜索区域划分成具有等于参考窗口的大小的大小的比较窗口; 将比较的窗口顺序地与参考窗口进行比较，以根据比较的结果确定相应的加权值; 将所比较的窗口中的计算块乘以块的对应加权值以获得加权块; 累积加权块以获得相加的像素数据块; 累积加权值以获得加权加权值; 以及根据加权的加权值对求和的像素数据块进行归一化以获得图像增强像素数据块。

公开(公告)号：US20100119172A1

公开(公告)日：2010-05-13

申请号：US12428478

申请日：2009-04-23

申请人： Chi-Chang Yu ,  Ming-Yang Wu ,  Brian Sung

发明人： Chi-Chang Yu ,  Ming-Yang Wu ,  Brian Sung

IPC分类号： G06K9/42

CPC分类号： G06T3/0018 ,  G06T5/006

摘要： A fisheye correction with perspective distortion reduction method used for saving memory space and reducing perspective distortion includes a coordinate transformation function, a fisheye distorted image and a fisheye corrected image, the fisheye corrected image includes a plurality of pixels, for each pixel of the plurality of pixels, orderly calculating a coordinate value in the fisheye distorted image, and according to the coordinate value, calculating a pixel value of the fisheye corrected image via an interpolation method, wherein the coordinate transformation function includes a fisheye correction coordinate transformation, a perspective distortion reduction coordinate transformation and an image crop and scale coordinate transformation.

摘要翻译： 用于节省存储空间和减少透视失真的具有透视失真降低方法的鱼眼校正包括坐标变换函数，鱼眼失真图像和鱼眼校正图像，鱼眼校正图像包括多个像素，对于多个 像素，有序地计算鱼眼失真图像中的坐标值，并且根据坐标值，经由插值方法计算鱼眼校正图像的像素值，其中坐标变换函数包括鱼眼校正坐标变换，透视变形减小 坐标变换和图像裁剪和缩放坐标变换。

公开(公告)号：US20090226047A1

公开(公告)日：2009-09-10

申请号：US12249055

申请日：2008-10-10

申请人： Chi-Chang Yu ,  Chia-Kai Liang ,  Ming-Yang Wu ,  Brian Sung

发明人： Chi-Chang Yu ,  Chia-Kai Liang ,  Ming-Yang Wu ,  Brian Sung

IPC分类号： G06K9/00

CPC分类号： G06K9/00986 ,  G06K9/00248 ,  G06K9/4614

摘要： An image processing apparatus includes a first register, a second register and an adder. The second register reads a number of pixels from a sub-window image in turn. The adder adds the pixels in the second register and stored values in the first register to output a number of adding calculation values. The adding calculation values are returned to the first register and are saved as stored values. In addition, the present invention relates to an image processing method and a human face detection system using the above image processing apparatus.

摘要翻译： 图像处理装置包括第一寄存器，第二寄存器和加法器。 第二个寄存器依次从子窗口图像中读取多个像素。 加法器将第二寄存器中的像素和第一寄存器中存储的值相加，以输出多个加法运算值。 添加计算值返回到第一个寄存器并保存为存储值。 此外，本发明涉及使用上述图像处理装置的图像处理方法和人脸检测系统。

公开(公告)号：US08971666B2

公开(公告)日：2015-03-03

申请号：US12428478

申请日：2009-04-23

申请人： Chi-Chang Yu ,  Ming-Yang Wu ,  Brian Sung

发明人： Chi-Chang Yu ,  Ming-Yang Wu ,  Brian Sung

IPC分类号： G06K9/32 ,  G06T3/00 ,  G06T5/00

CPC分类号： G06T3/0018 ,  G06T5/006

摘要： A fisheye correction with perspective distortion reduction method used for saving memory space and reducing perspective distortion includes a coordinate transformation function, a fisheye distorted image and a fisheye corrected image, the fisheye corrected image includes a plurality of pixels, for each pixel of the plurality of pixels, orderly calculating a coordinate value in the fisheye distorted image, and according to the coordinate value, calculating a pixel value of the fisheye corrected image via an interpolation method, wherein the coordinate transformation function includes a fisheye correction coordinate transformation, a perspective distortion reduction coordinate transformation and an image crop and scale coordinate transformation.

摘要翻译： 用于节省存储空间和减少透视失真的具有透视失真降低方法的鱼眼校正包括坐标变换函数，鱼眼失真图像和鱼眼校正图像，鱼眼校正图像包括多个像素，对于多个 像素，有序地计算鱼眼失真图像中的坐标值，并且根据坐标值，经由插值方法计算鱼眼校正图像的像素值，其中坐标变换函数包括鱼眼校正坐标变换，透视变形减小 坐标变换和图像裁剪和缩放坐标变换。

公开(公告)号：US08189950B2

公开(公告)日：2012-05-29

申请号：US12425036

申请日：2009-04-16

申请人： Ming-Yang Wu ,  Chi-Chang Yu ,  Brian Sung

发明人： Ming-Yang Wu ,  Chi-Chang Yu ,  Brian Sung

IPC分类号： G06K9/40

CPC分类号： G06T5/009 ,  G06T5/40 ,  G06T2207/10016 ,  G06T2207/20021

摘要： The present invention relates to a method for image enhancement. The method includes the steps of: replacing a value of a pixel of a digital image with a maximum one of values of red, green and blue sub-pixels of the pixel; selecting a specific pixel from pixels of the digital image; selecting some of the pixels surrounding the specific pixel to constitute a specific block; calculating an average of values of the pixels of the specific block; providing multiple curve functions; obtaining a corresponding one of the curve functions according to the average, and substituting the value of the pixel of the image into the curve functions to obtain new output brightness values.

摘要翻译： 本发明涉及图像增强的方法。 该方法包括以下步骤：用像素的红色，绿色和蓝色子像素的值中的最大值替换数字图像的像素的值; 从数字图像的像素中选择特定像素; 选择围绕特定像素的一些像素以构成特定块; 计算特定块的像素的平均值; 提供多个曲线函数; 根据平均值获得相应的一个曲线函数，并将图像像素的值代入曲线函数以获得新的输出亮度值。