公开(公告)号：US20130230258A1

公开(公告)日：2013-09-05

申请号：US13470910

申请日：2012-05-14

申请人： Shih-Yuan PENG ,  Hsin-Te Wang ,  Chung-Ta Wu

发明人： Shih-Yuan PENG ,  Hsin-Te Wang ,  Chung-Ta Wu

IPC分类号： G06K9/40

CPC分类号： G06T5/003 ,  G06T2207/20012

摘要： The present invention discloses an image sharpness processing apparatus and an image sharpness processing method thereof. The apparatus comprises an image capturing module and a processing module. The image capturing module captures an image having a plurality of pixels. The processing module gains a characteristic value corresponding to each pixel by analyzing each pixel in the image. The processing module calculates a first sharpening compensation value and a second sharpening compensation value of each pixel by using a first sharpening algorithm and a second sharpening algorithm respectively, and determines a weight value of the first sharpening algorithm and the second sharpening algorithm by the characteristic value. The processing module calculates a third sharpening compensation value according to the first sharpening compensation value and the second sharpening compensation value, so as to adjust the sharpness of the image.

摘要翻译： 本发明公开了一种图像锐度处理装置及其图像清晰度处理方法。 该装置包括图像捕获模块和处理模块。 图像捕获模块捕获具有多个像素的图像。 处理模块通过分析图像中的每个像素来获得与每个像素对应的特征值。 处理模块分别通过使用第一锐化算法和第二锐化算法来计算每个像素的第一锐化补偿值和第二锐化补偿值，并且通过特征值确定第一锐化算法和第二锐化算法的权重值 。 处理模块根据第一锐化补偿值和第二锐化补偿值计算第三锐化补偿值，以便调整图像的清晰度。

公开(公告)号：US08478002B2

公开(公告)日：2013-07-02

申请号：US13217271

申请日：2011-08-25

申请人： Shih-Yuan Peng ,  Chung-Ta Wu

发明人： Shih-Yuan Peng ,  Chung-Ta Wu

IPC分类号： G06K9/00

CPC分类号： G06T7/223

摘要： A method for analyzing object motion in multi frames adapted to an image capturing device is provided. Firstly, a plurality set of first sum of absolute difference (SAD) are obtained according to noise of the image capturing device under a plurality of light settings. Next, two frames are captured under a picturing light setting of the light settings. Then, a plurality of second SAD between the two frames are calculated. Afterwards, a plurality of object block within vein tracking of the object are found. Next, a local motion vector of each object block is respectively calculated according to the second SAD. Then, a first reliability of each object block is respectively calculated according to the second SAD and the set of the first SAD corresponding to the picturing light setting. Afterwards, the local motion vectors are estimated according to the first reliability to obtain a global motion vector.

摘要翻译： 提供一种用于分析适于图像捕获装置的多帧中的物体运动的方法。 首先，根据多个光设置下的图像拍摄装置的噪声，获得多组绝对差的第一和（SAD）。 接下来，在光设置的图示光设置下捕获两帧。 然后，计算两帧之间的多个第二SAD。 之后，发现对象的静脉跟踪内的多个对象块。 接下来，根据第二SAD分别计算每个对象块的局部运动矢量。 然后，根据第二SAD和对应于图示光设定的第一SAD的集合分别计算每个对象块的第一可靠性。 然后，根据第一可靠性来估计局部运动矢量以获得全局运动矢量。

公开(公告)号：US08189076B2

公开(公告)日：2012-05-29

申请号：US12573548

申请日：2009-10-05

申请人： Shih-Yuan Peng ,  Hsin-Te Wang

发明人： Shih-Yuan Peng ,  Hsin-Te Wang

IPC分类号： H04N9/64

CPC分类号： H04N5/3595

摘要： A method for compensating image data is adapted for an image sensor. The image sensor has a plurality of photo sensors arranged in an effective region and an optical black region. The method for compensating image data includes a plurality of monochromatic light representative values Si corresponding to pixel positions i is extracted from the photo sensors of the optical black region; a plurality of monochromatic image intensity values VO is extracted from the photo sensors of the effective region; the monochromatic light representative values Si are converted respectively to a plurality of monochromatic compensation values f(Si); and compensated image data VF is output after compensating the monochromatic image intensity values VO respectively based on the pixel positions i and the corresponding monochromatic compensation values f(Si). Through the method for compensating image data, a smear effect in the effective region can be compensated effectively.

摘要翻译： 用于补偿图像数据的方法适用于图像传感器。 图像传感器具有布置在有效区域和光学黑色区域中的多个光电传感器。 用于补偿图像数据的方法包括从光学黑色区域的光传感器中提取对应于像素位置i的多个单色光代表值Si; 从有效区域的光传感器中提取多个单色图像强度值VO; 单色光代表值Si分别转换为多个单色补偿值f（Si）; 并且基于像素位置i和相应的单色补偿值f（Si）分别补偿单色图像强度值VO之后输出补偿图像数据VF。 通过补偿图像数据的方法，可以有效地补偿有效区域的拖影效应。

公开(公告)号：US07896253B2

公开(公告)日：2011-03-01

申请号：US12344118

申请日：2008-12-24

申请人： Hong-Long Chou ,  Shih-Yuan Peng

发明人： Hong-Long Chou ,  Shih-Yuan Peng

IPC分类号： G06K9/40 ,  G06K19/06

CPC分类号： G06T3/608

摘要： A method for automatically rectifying business card presentation angle is described. The method is applicable to a mobile electronic device to automatically rectify a presentation angle of a shot business card image. Firstly, maintain character pixels of the shot business card image, and divide the character pixels into character groups by determining whether the pixel pitch is larger than a predetermined value. Next, obtain a first axis and a second axis of the character groups. After that, calculate an included angle formed between the first axis and the second axis, and adjust the oblique character groups through angles obtained for correction. Then, adjust aspect ratios of all the character groups after angle correction according to appropriate character aspect ratios, to make the displayed font seem normal. Finally, generate a corrected business card image according to the character groups after correction.

摘要翻译： 描述了一种自动整理名片呈现角度的方法。 该方法适用于移动电子设备，以自动校正拍摄名片图像的呈现角度。 首先，保持拍摄名片图像的字符像素，并且通过确定像素间距是否大于预定值来将字符像素划分为字符组。 接下来，获得字符组的第一轴和第二轴。 之后，计算第一轴和第二轴之间形成的夹角，并通过用于校正的角度来调整倾斜角色组。 然后，根据适当的字符宽高比调整角度修正后的所有字符组的纵横比，使显示的字体看起来正常。 最后，修正后根据字符组生成校正的名片图像。

公开(公告)号：US20100165174A1

公开(公告)日：2010-07-01

申请号：US12541928

申请日：2009-08-15

申请人： MING JIUN LIAW ,  SHIH YUAN PENG

发明人： MING JIUN LIAW ,  SHIH YUAN PENG

IPC分类号： H04N5/232 ,  G03B13/34

CPC分类号： G03B13/34 ,  H04N5/23212

摘要： An automatic focusing method and device in a high-noise environment are used for determining a focusing distance between a digital imaging device and an object to be photographed. The automatic focusing method includes the steps of capturing M pre-photographed images at different object distances respectively; loading the pre-photographed images; superposing every N (N

摘要翻译： 使用高噪声环境下的自动聚焦方法和装置来确定数字成像装置和待拍摄对象之间的聚焦距离。 自动聚焦方法包括以下步骤：分别捕获在不同物体距离处的M个预拍摄图像; 加载预先拍摄的图像; 重叠每N（N

公开(公告)号：US08412002B2

公开(公告)日：2013-04-02

申请号：US13237958

申请日：2011-09-21

申请人： Shih-Yuan Peng ,  Chung-Ta Wu

发明人： Shih-Yuan Peng ,  Chung-Ta Wu

IPC分类号： G06K9/32 ,  G06K9/48

CPC分类号： G06T5/50 ,  G06T2207/10148

摘要： A method for generating an all-in-focus image is provided. In the method, a plurality of frames including one source frame and several reference frames captured at different focus lengths are obtained. After performing a motion compensation procedure on the frames, for each pixel position belonging to an edge, a characteristic similarity between the source frame and each reference frame is calculated respectively to accordingly select a plurality of qualified reference frames among the reference frames. The method further includes determining a first type color space component of the pixel position within an all-in-focus image by an edge sharpness corresponding to the pixel position within each of the source frame and the qualified reference frames, and determining a second type color space component of the pixel position within the all-in-focus image by an color brightness corresponding to the pixel position within each of the source frame and the qualified reference frames.

摘要翻译： 提供了一种用于产生全焦点图像的方法。 在该方法中，获得包括一个源帧和以不同焦距捕获的几个参考帧的多个帧。 在对帧执行运动补偿过程之后，对于属于边缘的每个像素位置，分别计算源帧和每个参考帧之间的特征相似度，从而在参考帧中选择多个合格参考帧。 该方法还包括：确定全焦点图像内的像素位置的第一类型颜色空间分量与对应于每个源帧和合格参考帧内的像素位置的边缘锐度，以及确定第二类型颜色 在全焦点图像内的像素位置的空间分量与对应于每个源帧和合格参考帧内的像素位置的颜色亮度相关联。

公开(公告)号：US20120301025A1

公开(公告)日：2012-11-29

申请号：US13237958

申请日：2011-09-21

申请人： Shih-Yuan Peng ,  Chung-Ta Wu

发明人： Shih-Yuan Peng ,  Chung-Ta Wu

IPC分类号： G06K9/00

CPC分类号： G06T5/50 ,  G06T2207/10148

摘要： A method for generating an all-in-focus image is provided. In the method, a plurality of frames including one source frame and several reference frames captured at different focus lengths are obtained. After performing a motion compensation procedure on the frames, for each pixel position belonging to an edge, a characteristic similarity between the source frame and each reference frame is calculated respectively to accordingly select a plurality of qualified reference frames among the reference frames. The method further includes determining a first type color space component of the pixel position within an all-in-focus image by an edge sharpness corresponding to the pixel position within each of the source frame and the qualified reference frames, and determining a second type color space component of the pixel position within the all-in-focus image by an color brightness corresponding to the pixel position within each of the source frame and the qualified reference frames.

摘要翻译： 提供了一种用于产生全焦点图像的方法。 在该方法中，获得包括一个源帧和以不同焦距捕获的几个参考帧的多个帧。 在对帧执行运动补偿过程之后，对于属于边缘的每个像素位置，分别计算源帧和每个参考帧之间的特征相似度，从而在参考帧中选择多个合格参考帧。 该方法还包括：确定全焦点图像内的像素位置的第一类型颜色空间分量与对应于每个源帧和合格参考帧内的像素位置的边缘锐度，以及确定第二类型颜色 在全焦点图像内的像素位置的空间分量与对应于每个源帧和合格参考帧内的像素位置的颜色亮度相关联。

公开(公告)号：US08189077B2

公开(公告)日：2012-05-29

申请号：US12608431

申请日：2009-10-29

申请人： Shih-Yuan Peng ,  Hsin-Te Wang

发明人： Shih-Yuan Peng ,  Hsin-Te Wang

IPC分类号： H04N9/64

CPC分类号： H04N5/3595 ,  H04N9/045

摘要： A method for reducing smear effects of a dynamic image is for an image sensor. The image sensor converts a shot image picture into image data, and the image data is divided into an effective region, an upper optical black region (UOB), and a lower optical black region (LOB). The method includes capturing two continuous image data to serve as a first frame image and a second frame image; calculating brightness difference values between individual pixels at corresponding pixel positions of the LOB of the first frame image and the UOB of the second frame image; comparing the brightness difference values with a threshold; obtaining positions to be compensated in the UOB of the second frame image, when the UOB of the second frame image requires brightness compensation; and compensating brightness values of pixels in the effective region of the second frame image corresponding to the positions to be compensated.

摘要翻译： 用于减少动态图像的拖影效果的方法是用于图像传感器。 图像传感器将拍摄图像图像转换成图像数据，并且将图像数据分成有效区域，上部光学黑色区域（UOB）和下部光学黑色区域（LOB）。 该方法包括捕获两个连续图像数据以用作第一帧图像和第二帧图像; 计算第一帧图像的LOB的相应像素位置处的各个像素与第二帧图像的UOB之间的亮度差值; 将亮度差值与阈值进行比较; 当第二帧图像的UOB需要亮度补偿时，获得要在第二帧图像的UOB中补偿的位置; 以及补偿与要补偿的位置对应的第二帧图像的有效区域中的像素的亮度值。

公开(公告)号：US20100302406A1

公开(公告)日：2010-12-02

申请号：US12573548

申请日：2009-10-05

申请人： Shih Yuan Peng ,  Hsin Te Wang

发明人： Shih Yuan Peng ,  Hsin Te Wang

IPC分类号： H04N9/73

CPC分类号： H04N5/3595

摘要： A method for compensating image data is adapted for an image sensor. The image sensor has a plurality of photo sensors arranged in an effective region and an optical black region. The method for compensating image data includes a plurality of monochromatic light representative values Si corresponding to pixel positions i is extracted from the photo sensors of the optical black region; a plurality of monochromatic image intensity values VO is extracted from the photo sensors of the effective region; the monochromatic light representative values Si are converted respectively to a plurality of monochromatic compensation values f(Si); and compensated image data VF is output after compensating the monochromatic image intensity values VO respectively based on the pixel positions i and the corresponding monochromatic compensation values f(Si). Through the method for compensating image data, a smear effect in the effective region can be compensated effectively.

摘要翻译： 用于补偿图像数据的方法适用于图像传感器。 图像传感器具有布置在有效区域和光学黑色区域中的多个光电传感器。 用于补偿图像数据的方法包括从光学黑色区域的光传感器中提取与像素位置i相对应的多个单色光代表值Si; 从有效区域的光传感器中提取多个单色图像强度值VO; 单色光代表值Si分别转换为多个单色补偿值f（Si）; 并且基于像素位置i和相应的单色补偿值f（Si）分别补偿单色图像强度值VO之后输出补偿图像数据VF。 通过补偿图像数据的方法，可以有效地补偿有效区域的拖影效应。

公开(公告)号：US08953903B2

公开(公告)日：2015-02-10

申请号：US13205638

申请日：2011-08-09

申请人： Shih-Yuan Peng ,  Chung-Ta Wu

发明人： Shih-Yuan Peng ,  Chung-Ta Wu

IPC分类号： G06K9/40 ,  G06K9/56 ,  G06K9/32 ,  H04N5/00 ,  G06T5/00 ,  G06T7/00 ,  G06T5/20 ,  H04N5/213 ,  H04N5/14

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10016 ,  G06T2207/20032 ,  G06T2207/20182 ,  H04N5/142 ,  H04N5/213

摘要： A method of multi-frame image noise reduction suitable for an image-capturing device includes following steps: obtaining a current frame and multiple reference frames; defining a mask and a target point in the mask; judging whether the target point pixel of the current frame is on an edge according to an edge map of the frame; when the pixel is on the edge, using the pixels in the reference frames on the edge to calculate a replacement result; when the target point pixel is not on the edge, using the pixels in the reference frames surrounding the target point to calculate a replacement result; after that, generating a pixel corresponding to the position of the target point in an output image according to the replacement result; further, moving the mask and going back to judge whether the pixel of the target point of the current frame is on the edge.

摘要翻译： 适用于图像拍摄装置的多帧图像降噪方法包括以下步骤：获得当前帧和多个参考帧; 在掩模中定义掩模和目标点; 根据帧的边缘图判断当前帧的目标点像素是否在边缘上; 当像素在边缘时，使用边缘上的参考帧中的像素来计算替换结果; 当目标点像素不在边缘时，使用围绕目标点的参考帧中的像素来计算替换结果; 之后，根据替换结果生成与输出图像中的目标点的位置对应的像素; 此外，移动掩模并返回以判断当前帧的目标点的像素是否在边缘。