公开(公告)号：US08497930B2

公开(公告)日：2013-07-30

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： G03B13/00 ,  H04N5/232

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：US08102464B2

公开(公告)日：2012-01-24

申请号：US12541926

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

CPC分类号： G03B13/34 ,  H04N5/23212

摘要： An automatic focusing method in a high-noise environment and a digital imaging device using the same are used for determining an object distance. The method includes taking two digital images at a farthest object distance and taking two digital images at a nearest object distance, under a first exposure condition and a second exposure condition; capturing digital images under the first exposure condition at a plurality of different object distances other than the farthest and nearest object distances; selecting at least two images captured at adjacent object distances to create a composite image; calculating an object distance of the composite image; calculating high-frequency signals of the second farthest object distance image, the second nearest object distance image, and the composite image in the focusing frame; determining from the images an object distance corresponding to the maximum high-frequency signal; and moving an automatic focusing lens to the object distance.

摘要翻译： 使用高噪声环境下的自动聚焦方法和使用其的数字成像装置来确定对象距离。 该方法包括在最远物体距离处拍摄两个数字图像，并在第一曝光条件和第二曝光条件下以最近物距离拍摄两个数字图像; 在第一曝光条件下以除了最远和最近的物体距离之外的多个不同物体距离捕获数字图像; 选择在相邻对象距离处捕获的至少两个图像以创建合成图像; 计算合成图像的物距; 计算第二最远对象距离图像，第二最近对象距离图像和聚焦帧中的合成图像的高频信号; 从所述图像确定对应于所述最大高频信号的对象距离; 并将自动聚焦透镜移动到物体距离。

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：US20130136171A1

公开(公告)日：2013-05-30

申请号：US13402508

申请日：2012-02-22

申请人： I-Hsien Lee ,  Shih-Yuan Peng ,  Hong-Long Chou ,  Chung-Ta Wu ,  Chia-Ho Pan ,  Shuei-Lin Chen ,  Jer-Wei Chang

发明人： I-Hsien Lee ,  Shih-Yuan Peng ,  Hong-Long Chou ,  Chung-Ta Wu ,  Chia-Ho Pan ,  Shuei-Lin Chen ,  Jer-Wei Chang

IPC分类号： H04N7/34 ,  H04N7/26

CPC分类号： H04N19/51 ,  H04N19/107 ,  H04N19/124 ,  H04N19/503 ,  H04N19/593 ,  H04N19/615

摘要： A video signal encoder/decoder with a 3D noise reduction function and a method thereof. The encoder comprises a storage module, a motion estimation module, a motion compensation module, a first noise reduction module and a coding module. The storage module stores at least one reference image. The motion estimation module receives a first image from an image input end and estimates a motion vector in accordance with the first image and the reference image. The motion compensation module produces motion compensation according to the reference image and the motion vector. The first noise reduction module produces a first noise reduction value with a temporal sequence association according to the first image and the motion compensation. The coding module produces coding data according to the motion compensation and the first noise reduction value.

摘要翻译： 一种具有3D降噪功能的视频信号编码器/解码器及其方法。 编码器包括存储模块，运动估计模块，运动补偿模块，第一降噪模块和编码模块。 存储模块存储至少一个参考图像。 运动估计模块从图像输入端接收第一图像，并根据第一图像和参考图像估计运动矢量。 运动补偿模块根据参考图像和运动矢量产生运动补偿。 第一降噪模块根据第一图像和运动补偿产生具有时间序列关联的第一降噪值。 编码模块根据运动补偿和第一降噪值产生编码数据。

公开(公告)号：US07899315B2

公开(公告)日：2011-03-01

申请号：US12337800

申请日：2008-12-18

申请人： Hong-Long Chou ,  Shih-Yuan Peng

发明人： Hong-Long Chou ,  Shih-Yuan Peng

IPC分类号： G03B17/00 ,  G03B3/10

CPC分类号： G03B13/18 ,  G03B13/32 ,  H04N5/23212

摘要： A method of automatically adjusting a depth of field, suitable for adjusting settings relevant to the depth of field when pre-shooting an image to be shot through a digital camera, includes capturing an image to be shot; dividing the image into a plurality of detected blocks; performing a statistic process for an object distance on each detected block, and recording an object distance value of each detected block; generating an object-distance cumulative curve according to the object distance value of each detected block; performing a smoothing process to eliminate peak curves generated in the object-distance cumulative curve; looking up a mode of all the object distance values and a corresponding detected block according to the object-distance cumulative curve; adjusting corresponding aperture and focal length of the digital camera according to the corresponding detected block. The user shoots images at different sites without adjusting the digital camera into corresponding shoot mode.

摘要翻译： 一种自动调整景深的方法，包括：拍摄要拍摄的图像;适于在通过数码相机拍摄要拍摄的图像时调整与景深有关的设置的景深; 将图像分割成多个检测到的块; 对每个检测到的块执行对象距离的统计处理，并记录每个检测到的块的对象距离值; 根据每个检测块的物体距离值生成对象距离累积曲线; 执行平滑处理以消除在对象距离累积曲线中产生的峰值曲线; 根据对象距离累积曲线查找所有对象距离值的模式和相应的检测到的块; 根据相应的检测块调整数码相机的相应孔径和焦距。 用户拍摄不同地点的图像，无需将数码相机调整到相应的拍摄模式。

公开(公告)号：US20090166441A1

公开(公告)日：2009-07-02

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： G06K19/00

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：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。