公开(公告)号：US20090022226A1

公开(公告)日：2009-01-22

申请号：US11826755

申请日：2007-07-18

申请人： Yoo-sun Bang ,  Edward J. Delp ,  Fengqing Zhu ,  Ho-young Lee ,  Heui-keun Choh

发明人： Yoo-sun Bang ,  Edward J. Delp ,  Fengqing Zhu ,  Ho-young Lee ,  Heui-keun Choh

IPC分类号： H04B1/66

CPC分类号： H04N19/51

摘要： Provided is a technology which can prevent deterioration of image quality when enhancing resolution of a predetermined key frame in a video sequence. Specifically, an apparatus to enhance resolution of a video frame is provided. The apparatus includes a frame extraction unit which extracts a key frame and one or more neighboring frames of the key frame from a video sequence; an upsampling unit which upsamples the key frame and the neighboring frames; a motion-vector search unit which calculates a motion vector of the upsampled key frame using the upsampled neighboring frames as reference frames; and a key-frame estimation unit which enhances quality of the upsampled key frame using temporal information obtained from the motion vector and spatial information in the key frame.

摘要翻译： 提供了当增强视频序列中的预定关键帧的分辨率时能够防止图像质量劣化的技术。 具体地，提供了一种用于增强视频帧的分辨率的装置。 该装置包括：帧提取单元，从视频序列中提取关键帧和关键帧的一个或多个相邻帧; 上采样单元，其对关键帧和相邻帧进行上采样; 运动矢量搜索单元，其使用所述上采样的相邻帧作为参考帧来计算所述上采样的关键帧的运动矢量; 以及关键帧估计单元，其使用从关键帧中的运动矢量和空间信息获得的时间信息来提高上采样的关键帧的质量。

公开(公告)号：US08331451B2

公开(公告)日：2012-12-11

申请号：US11826755

申请日：2007-07-18

申请人： Yousun Bang ,  Edward J. Delp ,  Fengqing Zhu ,  Ho-young Lee ,  Heui-keun Choh

发明人： Yousun Bang ,  Edward J. Delp ,  Fengqing Zhu ,  Ho-young Lee ,  Heui-keun Choh

IPC分类号： H04N7/12

CPC分类号： H04N19/51

摘要： Provided is a technology which can prevent deterioration of image quality when enhancing resolution of a predetermined key frame in a video sequence. Specifically, an apparatus to enhance resolution of a video frame is provided. The apparatus includes a frame extraction unit which extracts a key frame and one or more neighboring frames of the key frame from a video sequence; an upsampling unit which upsamples the key frame and the neighboring frames; a motion-vector search unit which calculates a motion vector of the upsampled key frame using the upsampled neighboring frames as reference frames; and a key-frame estimation unit which enhances quality of the upsampled key frame using temporal information obtained from the motion vector and spatial information in the key frame.

摘要翻译： 提供了当增强视频序列中的预定关键帧的分辨率时能够防止图像质量劣化的技术。 具体地，提供了一种用于增强视频帧的分辨率的装置。 该装置包括：帧提取单元，从视频序列中提取关键帧和关键帧的一个或多个相邻帧; 上采样单元，其对关键帧和相邻帧进行上采样; 运动矢量搜索单元，其使用所述上采样的相邻帧作为参考帧来计算所述上采样的关键帧的运动矢量; 以及关键帧估计单元，其使用从关键帧中的运动矢量和空间信息获得的时间信息来提高上采样的关键帧的质量。

公开(公告)号：US20090022402A1

公开(公告)日：2009-01-22

申请号：US11878147

申请日：2007-07-20

申请人： Ho-young Lee ,  Jan P. Allebach ,  Xiaojun Feng ,  Yousun Bang ,  Heui-keun Choh

发明人： Ho-young Lee ,  Jan P. Allebach ,  Xiaojun Feng ,  Yousun Bang ,  Heui-keun Choh

IPC分类号： G06K9/46

CPC分类号： G06T3/4007 ,  H04N5/142

摘要： Provided is an image-resolution-improvement apparatus and method which can increase the resolution of an input image at a high magnification to thereby obtain a high-quality final image. The apparatus includes a textured-region-detection unit to detect a texture region in an input image; and a final-image-generation unit to synthesize a first intermediate image and a second intermediate image, which are obtained by applying different interpolation techniques to the texture region and a non-texture region excluding the texture region and generating a final image.

摘要翻译： 提供一种图像分辨率改善装置和方法，其可以以高放大倍数提高输入图像的分辨率，从而获得高质量的最终图像。 该装置包括：纹理区域检测单元，用于检测输入图像中的纹理区域; 以及合成第一中间图像和第二中间图像的最终图像生成单元，其通过将不同的插值技术应用于纹理区域和除纹理区域之外的非纹理区域并产生最终图像而获得。

公开(公告)号：US08233748B2

公开(公告)日：2012-07-31

申请号：US11878147

申请日：2007-07-20

申请人： Ho-young Lee ,  Jan P. Allebach ,  Xiaojun Feng ,  Yousun Bang ,  Heui-keun Choh

发明人： Ho-young Lee ,  Jan P. Allebach ,  Xiaojun Feng ,  Yousun Bang ,  Heui-keun Choh

IPC分类号： G06K9/66 ,  G06K9/32 ,  G09G5/00 ,  H04N5/44 ,  H04N1/393

CPC分类号： G06T3/4007 ,  H04N5/142

摘要： Provided is an image-resolution-improvement apparatus and method which can increase the resolution of an input image at a high magnification to thereby obtain a high-quality final image. The apparatus includes a textured-region-detection unit to detect a texture region in an input image; and a final-image-generation unit to synthesize a first intermediate image and a second intermediate image, which are obtained by applying different interpolation techniques to the texture region and a non-texture region excluding the texture region and generating a final image.

摘要翻译： 提供一种图像分辨率改善装置和方法，其可以以高放大倍数提高输入图像的分辨率，从而获得高质量的最终图像。 该装置包括：纹理区域检测单元，用于检测输入图像中的纹理区域; 以及合成第一中间图像和第二中间图像的最终图像生成单元，其通过将不同的插值技术应用于纹理区域和除纹理区域之外的非纹理区域并产生最终图像而获得。

公开(公告)号：US08520945B2

公开(公告)日：2013-08-27

申请号：US13336943

申请日：2011-12-23

申请人： Ho-young Lee ,  Jun-Oh Park

发明人： Ho-young Lee ,  Jun-Oh Park

IPC分类号： G06K9/00 ,  G06K9/40 ,  G03F3/06

CPC分类号： H04N9/64

摘要： An apparatus for color interpolation using an adjustable threshold is disclosed. The color interpolation apparatus calculates the difference between the maximum value and the minimum value of the elements of the image data and determines the color interpolation method of the image data depending on the difference to perform the corresponding color interpolation. With the present invention, the improved image quality can be provided because the color interpolation can be performed as a user desires.

摘要翻译： 公开了一种使用可调阈值进行颜色插值的装置。 颜色插值装置计算图像数据的元素的最大值和最小值之间的差，并且根据差异确定图像数据的颜色插值方法以执行相应的颜色插值。 利用本发明，可以提供改进的图像质量，因为可以根据用户期望进行颜色插值。

公开(公告)号：US20110206280A1

公开(公告)日：2011-08-25

申请号：US12596627

申请日：2008-05-06

申请人： Ho-young Lee

发明人： Ho-young Lee

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： G06T5/40 ,  G06T5/009

摘要： Provided are an image brightness control device and an image brightness control method for improving the definition of brightness of the entire image and/or improving the definition of brightness of local areas using local brightness information. The image brightness controlling device includes: a preprocessing unit acquiring an offset table for controlling a dynamic range corresponding to an image range of an input image using brightness values of color data of the input image; and a tone mapping unit mapping the offset table onto the color data. It is possible to improve the definition of brightness so as to correspond to the characteristic of the input image, by automatically considering how to reflect a distribution characteristic of an image.

摘要翻译： 提供了一种图像亮度控制装置和图像亮度控制方法，用于使用局部亮度信息来改善整个图像的亮度的定义和/或改善局部区域的亮度的定义。 图像亮度控制装置包括：预处理单元，使用输入图像的颜色数据的亮度值来获取用于控制与输入图像的图像范围对应的动态范围的偏移表; 以及将偏移表映射到颜色数据上的色调映射单元。 通过自动考虑如何反映图像的分布特性，可以提高亮度的定义，以便对应于输入图像的特性。

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.

公开(公告)号：US07974490B2

公开(公告)日：2011-07-05

申请号：US11889443

申请日：2007-08-13

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

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

IPC分类号： G06K9/40

CPC分类号： G06T5/003 ,  G06T5/008 ,  G06T2207/10024 ,  G06T2207/20021 ,  H04N1/58

摘要： Disclosed are an apparatus and method to improve clarity of images, which can prevent the degradation of the clarity of a display unit caused by deterioration of a contrast characteristic. The apparatus includes: an artifact reducing unit determining a representative color of one of the images and moving a color of an edge as the determined representative color; a filter extracting a high frequency component of the image; and a sharpness enhancement unit improving the clarity of the image having the color of the edge moved and the filtered high frequency component.

摘要翻译： 公开了一种提高图像清晰度的装置和方法，其可以防止由对比度特性的劣化引起的显示单元的清晰度的劣化。 该装置包括：伪像减少单元，确定图像之一的代表颜色，并移动边缘的颜色作为所确定的代表色; 提取图像的高频分量的滤波器; 以及锐度增强单元，其改善了具有所移动的边缘的颜色和滤波的高频分量的图像的清晰度。