公开(公告)号：US08004586B2

公开(公告)日：2011-08-23

申请号：US11583006

申请日：2006-10-19

申请人： Young-jin Yoo ,  Ho-young Lee ,  Du-sik Park ,  Seong-deok Lee ,  Seung-sin Lee

发明人： Young-jin Yoo ,  Ho-young Lee ,  Du-sik Park ,  Seong-deok Lee ,  Seung-sin Lee

IPC分类号： H04N5/217

CPC分类号： H04N1/409

摘要： An apparatus and a method for reducing noise from an image sensor are provided. The apparatus includes a noise-estimation unit which estimates a noise level representing an image frame expressed as a component in a color space, a filter-strength-calculation unit which determines filter strength based on the estimated noise level, and a filter-application unit which filters pixels constituting the image frame according to the determined filter strength.

摘要翻译： 提供了一种降低图像传感器噪声的装置和方法。 该装置包括噪声估计单元，其估计表示作为颜色空间中的分量的图像帧的噪声水平，基于估计的噪声水平确定滤波器强度的滤波强度计算单元，以及滤波器应用单元 其根据所确定的滤波器强度对构成图像帧的像素进行滤波。

公开(公告)号：US20070097236A1

公开(公告)日：2007-05-03

申请号：US11583006

申请日：2006-10-19

申请人： Young-Jin Yoo ,  Ho-young Lee ,  Du-sik Park ,  Seong-deok Lee ,  Seung-sin Lee

发明人： Young-Jin Yoo ,  Ho-young Lee ,  Du-sik Park ,  Seong-deok Lee ,  Seung-sin Lee

IPC分类号： H04N5/217

CPC分类号： H04N1/409

摘要： An apparatus and a method for reducing noise from an image sensor are provided. The apparatus includes a noise-estimation unit which estimates a noise level representing an image frame expressed as a component in a color space, a filter-strength-calculation unit which determines filter strength based on the estimated noise level, and a filter-application unit which filters pixels constituting the image frame according to the determined filter strength.

摘要翻译： 提供了一种降低图像传感器噪声的装置和方法。 该装置包括噪声估计单元，其估计表示作为颜色空间中的分量的图像帧的噪声水平，基于估计的噪声水平确定滤波器强度的滤波强度计算单元，以及滤波器应用单元 其根据所确定的滤波器强度对构成图像帧的像素进行滤波。

公开(公告)号：US07876979B2

公开(公告)日：2011-01-25

申请号：US11202030

申请日：2005-08-12

申请人： Ho-young Lee ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Alexey Lukin

发明人： Ho-young Lee ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Alexey Lukin

IPC分类号： G06K9/32 ,  G06K9/48

CPC分类号： G06T3/403 ,  G06T5/002 ,  G06T5/004 ,  G06T5/20 ,  G06T2200/12 ,  G06T2207/10024 ,  G06T2207/20192 ,  H04N1/3935 ,  H04N1/4092

摘要： The resolution-converting method comprises steps of applying an edge-directed interpolation to an input image and producing an intermediate image; converting a sampling rate with respect to the intermediate image and producing an output image having a predetermined resolution; and improving sharpness of the produced output image. The present invention prevents image-quality degradation factors that can occur in the conventional resolution-converting method as well as obtains an output image having a resolution of a desired size.

摘要翻译： 分辨率转换方法包括对输入图像应用边缘定向内插并产生中间图像的步骤; 相对于中间图像转换采样率并产生具有预定分辨率的输出图像; 并提高所产生的输出图像的清晰度。 本发明防止了在常规分辨率转换方法中可能发生的图像质量劣化因子，并且获得具有期望大小的分辨率的输出图像。

公开(公告)号：US07433104B2

公开(公告)日：2008-10-07

申请号：US10621306

申请日：2003-07-18

申请人： Won-hee Cheo ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Ho-young Lee

发明人： Won-hee Cheo ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Ho-young Lee

IPC分类号： G03F3/08

CPC分类号： H04N1/6005 ,  H04N1/6027 ,  H04N9/68

摘要： A method and an apparatus for adaptively enhancing a color of an image are provided. The apparatus includes a saturation component deriving unit, a saturation enhancement function determining variable calculator, a saturation enhancement unit, and a saturation component synthesizing unit. The saturation component deriving unit derives a saturation component from an input image. The saturation enhancement function determining variable calculator determines a saturation enhancement function used to enhance the saturation of the input image based upon a predetermined reference value. The saturation enhancement unit changes the derived saturation component using the saturation enhancement function. The saturation component synthesizing unit synthesizes the changed saturation component and other components of the input image and generates an output image based upon the synthesized components.

摘要翻译： 提供了一种用于自适应地增强图像的颜色的方法和装置。 该装置包括饱和度分量导出单元，饱和度增强函数确定变量计算器，饱和度增强单元和饱和分量合成单元。 饱和度分量导出单元从输入图像中导出饱和分量。 饱和度增强函数确定变量计算器基于预定的参考值来确定用于增强输入图像的饱和度的饱和度增强功能。 饱和度增强单元使用饱和度增强功能改变导出的饱和分量。 饱和分量合成单元合成改变的饱和分量和输入图像的其他分量，并根据合成分量生成输出图像。

公开(公告)号：US20060033936A1

公开(公告)日：2006-02-16

申请号：US11202030

申请日：2005-08-12

申请人： Ho-young Lee ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Alexey Lukin

发明人： Ho-young Lee ,  Chang-yeong Kim ,  Du-sik Park ,  Seong-deok Lee ,  Alexey Lukin

IPC分类号： G06K15/02

CPC分类号： G06T3/403 ,  G06T5/002 ,  G06T5/004 ,  G06T5/20 ,  G06T2200/12 ,  G06T2207/10024 ,  G06T2207/20192 ,  H04N1/3935 ,  H04N1/4092

摘要： The resolution-converting method comprises steps of applying an edge-directed interpolation to an input image and producing an intermediate image; converting a sampling rate with respect to the intermediate image and producing an output image having a predetermined resolution; and improving sharpness of the produced output image. The present invention prevents image-quality degradation factors that can occur in the conventional resolution-converting method as well as obtains an output image having a resolution of a desired size.

摘要翻译： 分辨率转换方法包括对输入图像应用边缘定向内插并产生中间图像的步骤; 相对于中间图像转换采样率并产生具有预定分辨率的输出图像; 并提高所产生的输出图像的清晰度。 本发明防止了在常规分辨率转换方法中可能发生的图像质量劣化因子，并且获得具有期望大小的分辨率的输出图像。

公开(公告)号：US07808531B2

公开(公告)日：2010-10-05

申请号：US11594217

申请日：2006-11-08

申请人： Sung-su Kim ,  Ho-young Lee ,  Hyun-hwa Oh ,  Seong-deok Lee

发明人： Sung-su Kim ,  Ho-young Lee ,  Hyun-hwa Oh ,  Seong-deok Lee

IPC分类号： H04N9/73 ,  H04N7/68 ,  H04N9/77 ,  G06K9/00

CPC分类号： H04N9/73

摘要： An auto white controlling method and apparatus are provided. The method includes providing a plurality of feature points having color features of an image if the image includes an object having dominant chroma; detecting a first illuminant according to the feature points; calculating a mean chroma of data showing a chroma difference within a threshold value with a chroma of the first illuminant among data constituting the image; and providing a second illuminant by mapping the mean chroma to an illuminant locus. The apparatus includes a feature-analyzing module that provides a plurality of feature points having color features of an image; and an illuminant-detecting module that detects a first illuminant by using the feature points, calculates a mean chroma of data showing the color difference within a threshold value with the chroma of the first illuminant, and provides a second illuminant by mapping the mean chroma to an illuminant locus.

摘要翻译： 提供了一种自动白色控制方法和装置。 该方法包括提供具有图像颜色特征的多个特征点，如果该图像包括具有主色度的对象; 根据特征点检测第一光源; 在构成图像的数据的数据中，计算表示在阈值内的色度差的数据的平均色度与第一光源的色度; 并通过将平均色度映射到光源轨迹来提供第二光源。 该装置包括：特征分析模块，其提供具有图像的颜色特征的多个特征点; 以及通过使用所述特征点来检测第一光源的光源检测模块，利用所述第一光源的色度，计算表示所述色差的数据的平均色度，并且将所述平均色度映射到 光源轨迹。

公开(公告)号：US20070146498A1

公开(公告)日：2007-06-28

申请号：US11594217

申请日：2006-11-08

申请人： Sung-su Kim ,  Ho-young Lee ,  Hyun-hwa Oh ,  Seong-deok Lee

发明人： Sung-su Kim ,  Ho-young Lee ,  Hyun-hwa Oh ,  Seong-deok Lee

IPC分类号： H04N9/73

CPC分类号： H04N9/73

摘要： An auto white controlling method and apparatus are provided. The method includes providing a plurality of feature points having color features of an image if the image includes an object having dominant chroma; detecting a first illuminant according to the feature points; calculating a mean chroma of data showing a chroma difference within a threshold value with a chroma of the first illuminant among data constituting the image; and providing a second illuminant by mapping the mean chroma to an illuminant locus. The apparatus includes a feature-analyzing module that provides a plurality of feature points having color features of an image; and an illuminant-detecting module that detects a first illuminant by using the feature points, calculates a mean chroma of data showing the color difference within a threshold value with the chroma of the first illuminant, and provides a second illuminant by mapping the mean chroma to an illuminant locus.

摘要翻译： 提供了一种自动白色控制方法和装置。 该方法包括提供具有图像颜色特征的多个特征点，如果该图像包括具有主色度的对象; 根据特征点检测第一光源; 在构成图像的数据的数据中，计算表示在阈值内的色度差的数据的平均色度与第一光源的色度; 以及通过将平均色度映射到光源轨迹来提供第二光源。 该装置包括：特征分析模块，其提供具有图像的颜色特征的多个特征点; 以及通过使用所述特征点来检测第一光源的光源检测模块，利用所述第一光源的色度，计算表示所述色差的数据的平均色度，并且将所述平均色度映射到 光源轨迹。

公开(公告)号：US20070133686A1

公开(公告)日：2007-06-14

申请号：US11637803

申请日：2006-12-13

申请人： Ho-young Lee ,  Hyun-hwa Oh ,  Chang-yeong Kim ,  Du-sik Park

发明人： Ho-young Lee ,  Hyun-hwa Oh ,  Chang-yeong Kim ,  Du-sik Park

IPC分类号： H04N11/02 ,  H04B1/66

CPC分类号： H04N19/132 ,  H04N19/51 ,  H04N19/56 ,  H04N19/577 ,  H04N19/587 ,  H04N19/895

摘要： A method for frame interpolation based on motion estimation converts a frame rate of an image frame source according to an appliance that displays the image frame. An apparatus for frame interpolation based on motion estimation includes a motion vector estimation unit estimating a final motion vector of a block in a specified frame, a motion vector post-processing unit smoothing the estimated final motion vector, and a motion error concealment unit concealing an error due to discontinuity among blocks having the smoothed final motion vector.

摘要翻译： 基于运动估计的帧插值方法根据显示图像帧的装置转换图像帧源的帧速率。 一种基于运动估计的帧内插装置包括：运动矢量估计单元，估计特定帧中的块的最终运动矢量;平滑估计的最终运动矢量的运动矢量后处理单元;以及运动误差隐藏单元， 由于具有平滑的最终运动矢量的块之间的不连续性导致的误差。

公开(公告)号：US20060290957A1

公开(公告)日：2006-12-28

申请号：US11356223

申请日：2006-02-17

申请人： Sung-su Kim ,  Ho-young Lee ,  Du-Sik Park ,  Chang-yeong Kim

发明人： Sung-su Kim ,  Ho-young Lee ,  Du-Sik Park ,  Chang-yeong Kim

IPC分类号： H04N1/60

CPC分类号： H04N1/608 ,  H04N1/4072

摘要： An automatic white balance control image apparatus, medium, and method. The automatic white balance control imaging apparatus may include a color space conversion unit converting the input image data into color space data having a chromatic component, a gray region extraction unit extracting a gray region for the input image data based on gray regions for light sources, the gray regions being detected based on plural light sources and a predetermined color checker, a detection unit extracting initial light source information using a color gamut average value and a color gamut center value, and adjusting the initial light source information in order for a chromatic component introduced into the extracted gray region to be excluded, a gain control unit calculating gains to scale the input image data based on the adjusted initial light source information, and controlling a white balance by applying the calculated gains to the input image data.

摘要翻译： 一种自动白平衡控制图像装置，介质和方法。 自动白平衡控制成像装置可以包括将输入图像数据转换为具有彩色分量的色空间数据的颜色空间转换单元，基于用于光源的灰色区域为输入图像数据提取灰度区域的灰度区域提取单元， 基于多个光源和预定颜色检查器检测灰度区域，检测单元使用色域平均值和色域中心值提取初始光源信息，并且调整初始光源信息以便进行彩色分量 被引入要被排除的提取的灰色区域中，增益控制单元基于经调整的初始光源信息计算增益以缩放输入图像数据，并且通过将计算出的增益应用于输入图像数据来控制白平衡。

公开(公告)号：US20060170798A1

公开(公告)日：2006-08-03

申请号：US11335499

申请日：2006-01-20

申请人： Ho-young Lee ,  Sung-su Kim ,  Du-sik Park ,  Chang-yeong Kim

发明人： Ho-young Lee ,  Sung-su Kim ,  Du-sik Park ,  Chang-yeong Kim

IPC分类号： H04N5/335

CPC分类号： H04N9/045

摘要： A method is provided for reducing occurrence of color fringe errors occurred at the time of carrying out a color filter interpolation and reducing degradation of an image quality. Interpolation of a G channel value in a pixel of the color filter having only R or B channel values is carried out such that a similarity measured between channels based on interpolation results in horizontal and vertical directions are measured, and the G channel interpolation is carried out in a direction where the measured similarity becomes the maximized. However, when the reliability of the measured similarity becomes poor, a final G channel interpolation is carried out using a weighted average value using similarity information of each direction and interpolation results of the horizontal and vertical directions.