公开(公告)号：US08547590B2

公开(公告)日：2013-10-01

申请号：US11953225

申请日：2007-12-10

Applicant: Yousun Bang ,  Sang-ho Kim

Inventor： Yousun Bang ,  Sang-ho Kim

IPC: G06F15/00

CPC classification number: H04N1/4092 ,  H04N1/603

Abstract: An apparatus and method of calculating a resolution. The method of calculating a resolution includes selecting a region having an edge from a test chart, calculating a spatial frequency response (SFR) of an image forming device that has printed the test chart from the selected region, setting a frequency that corresponds to a principal SFR among the calculated SFRs of the image forming device as a principal frequency of the SFR of the image forming device, and judging the set principal frequency as the resolution of the image forming device.

Abstract translation: 计算分辨率的装置和方法。 计算分辨率的方法包括从测试图中选择具有边缘的区域，计算已经从所选择的区域打印了测试图的图像形成设备的空间频率响应（SFR），设置与主体对应的频率 SFR作为图像形成装置的SFR的主频，并且将设定的主频判定为图像形成装置的分辨率。

公开(公告)号：US08705152B2

公开(公告)日：2014-04-22

申请号：US11892426

申请日：2007-08-22

Applicant: Min-ki Cho ,  Heui-keun Choh ,  YouSun Bang ,  Se-eun Kim ,  Yun-tae Kim

Inventor： Min-ki Cho ,  Heui-keun Choh ,  YouSun Bang ,  Se-eun Kim ,  Yun-tae Kim

IPC: H04N1/46 ,  G06K1/00

CPC classification number: H04N1/62 ,  H04N1/6027

Abstract: A system, medium, and method calibrating gray data. The system calibrating gray data includes a transformation unit to transform red, green, and blue (RGB) data of a source device into transformed color data of a different color space using a color appearance model, and a calibration unit to map a chroma value of gray data, corresponding to the transformed color data, in the different color space to a predetermined value to generate calibrated color space data.

Abstract translation: 一种校准灰度数据的系统，介质和方法。 系统校准灰度数据包括变换单元，其使用颜色外观模型将源设备的红，绿和蓝（RGB）数据变换为不同颜色空间的变换颜色数据，以及校准单元，用于将色度值 对应于变换的颜色数据的灰度数据在不同的颜色空间中达到预定值，以产生经校准的色彩空间数据。

公开(公告)号：US08451510B2

公开(公告)日：2013-05-28

申请号：US12489580

申请日：2009-06-23

Applicant: Tae-yoon Hwang ,  Yousun Bang ,  Charles A. Bouman ,  Eri Haneda

Inventor： Tae-yoon Hwang ,  Yousun Bang ,  Charles A. Bouman ,  Eri Haneda

IPC: H04N1/40 ,  H04N1/04 ,  H04N1/46 ,  H04N1/387 ,  H04N5/14 ,  H04N7/18 ,  H04N9/04 ,  G03F3/10 ,  G03B27/42 ,  G03B27/72 ,  G06K9/20

CPC classification number: H04N1/38 ,  H04N1/40062

Abstract: An image processing method of an image processing apparatus, the method includes: discerning pixels to be processed on the basis of a preset reference pixel value in a scanned image that comprises plural pixels; drawing a pixel area including the pixels to be processed from the scanned image on the basis of a preset condition; and selecting whether to apply an image process to the pixels to be processed or the drawn pixel area on the basis of a percentage of the pixels to be processed in the drawn pixel area.

Abstract translation: 一种图像处理装置的图像处理方法，所述方法包括：基于包括多个像素的扫描图像中的预设参考像素值来识别要处理的像素; 基于预设条件从扫描图像绘制包括要处理的像素的像素区域; 并且基于要绘制的像素区域中要处理的像素的百分比来选择是否对要处理的像素或绘制的像素区域应用图像处理。

公开(公告)号：US08331451B2

公开(公告)日：2012-12-11

申请号：US11826755

申请日：2007-07-18

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

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

IPC: H04N7/12

CPC classification number: H04N19/51

Abstract: 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.

Abstract translation: 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：US07643185B2

公开(公告)日：2010-01-05

申请号：US11591525

申请日：2006-11-02

Applicant: Yousun Bang ,  Heui-keun Choh

Inventor： Yousun Bang ,  Heui-keun Choh

IPC: H04N1/46

CPC classification number: H04N1/6033

Abstract: A method for tone calibration and an apparatus using the same are provided. The method for tone calibration includes outputting a reference patch of a predetermined color and a plurality of sample patches having different tone levels of constant intervals of the color, receiving an input of identification information of any one of the sample patches, and generating a lookup table, which is obtained by reflecting a distortion level of the reference patch, in accordance with the input identification information.

Abstract translation: 提供了一种用于音调校准的方法和使用该方法的装置。 用于色调校正的方法包括输出预定颜色的参考斑块和具有不同颜色恒定间隔的色调级别的多个样本斑块，接收任一样本斑块的识别信息的输入，并产生查找表 ，其通过根据输入的识别信息反映参考片的失真水平而获得。

公开(公告)号：US20070133061A1

公开(公告)日：2007-06-14

申请号：US11591525

申请日：2006-11-02

Applicant: Yousun Bang ,  Heui-keun Choh

Inventor： Yousun Bang ,  Heui-keun Choh

IPC: H04N1/409

CPC classification number: H04N1/6033

Abstract: A method for tone calibration and an apparatus using the same are provided. The method for tone calibration includes outputting a reference patch of a predetermined color and a plurality of sample patches having different tone levels of constant intervals of the color, receiving an input of identification information of any one of the sample patches, and generating a lookup table, which is obtained by reflecting a distortion level of the reference patch, in accordance with the input identification information.

Abstract translation: 提供了一种用于音调校准的方法和使用该方法的装置。 用于色调校正的方法包括输出预定颜色的参考斑块和具有不同颜色恒定间隔的色调级别的多个样本斑块，接收任一样本斑块的识别信息的输入，并产生查找表 ，其通过根据输入的识别信息反映参考片的失真电平而获得。

公开(公告)号：US08233748B2

公开(公告)日：2012-07-31

申请号：US11878147

申请日：2007-07-20

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

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

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

CPC classification number: G06T3/4007 ,  H04N5/142

Abstract: 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.

Abstract translation: 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：US07986447B2

公开(公告)日：2011-07-26

申请号：US11898657

申请日：2007-09-13

Applicant: Yousun Bang ,  Min-ki Cho ,  Se-eun Kim ,  Heui-keun Choh

Inventor： Yousun Bang ,  Min-ki Cho ,  Se-eun Kim ,  Heui-keun Choh

IPC: G03F3/08

CPC classification number: H04N1/6033 ,  H04N1/6097

Abstract: A color image scanning system, method and medium that generates look-up tables for color data correction based on the type of printing paper and the kind of image on the printing papers, thereby improving color reproducibility upon scanning.A color image scanning system may include a storage unit to store look-up tables having correction values of first color data, obtained by scanning a first printing paper having a plurality of color patches, each of the look-up tables corresponding to a type of printing paper, and a final image generation unit to correct second color data, obtained by scanning a second printing paper, with reference to a look-up table of the look-up tables, the look-up table corresponding to the type of printing paper used by the second printing paper.

Abstract translation: 彩色图像扫描系统，方法和介质，其基于打印纸的类型和打印纸上的图像的种类生成用于颜色数据校正的查找表，从而提高扫描时的色彩再现性。 彩色图像扫描系统可以包括存储单元，用于存储具有通过扫描具有多个色标的第一打印纸获得的第一颜色数据的校正值的查找表，每个查找表对应于 打印纸和最终图像生成单元，用于校正通过扫描第二打印纸获得的第二颜色数据，参考查找表的查找表，与打印纸的类型对应的查找表 由第二张打印纸使用。

公开(公告)号：US07978910B2

公开(公告)日：2011-07-12

申请号：US11580901

申请日：2006-10-16

Applicant: Yousun Bang ,  Heui-keun Choh

Inventor： Yousun Bang ,  Heui-keun Choh

IPC: G06K9/34 ,  G06K9/40

CPC classification number: G06T5/002 ,  G06T5/003 ,  G06T5/20 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/20012

Abstract: A method and apparatus for adaptively filtering an input image are provided. The method includes dividing an input image into a plurality of color domains according to a distribution of colors in the input image, respectively calculating a plurality of filter coefficients for the color domains, and adaptively filtering the color domains using the respective filter coefficients. The apparatus includes a domain classification unit which divides an input image into a plurality of color domains according to a distribution of colors in the input image, a filter coefficient calculation unit which respectively calculates a plurality of filter coefficients for the color domains, and a filtering unit which respectively filters the color domains using the filter coefficients. Accordingly, it is possible to enhance picture quality by addressing the problem of limited texture representation capabilities of existing filtering methods and apparatuses especially for memory color domains.

Abstract translation: 提供了一种用于自适应地过滤输入图像的方法和装置。 该方法包括根据输入图像中的颜色分布将输入图像划分为多个颜色域，分别计算彩色域的多个滤色器系数，以及使用相应的滤色器系数自适应地对色域进行滤波。 该装置包括：域分类单元，其根据输入图像中的颜色分布将输入图像分割成多个颜色域;滤波器系数计算单元，分别计算彩色域的多个滤波器系数;以及滤波 使用滤波器系数分别对颜色域进行滤波的单元。 因此，可以通过解决现有的滤波方法和装置特别是用于存储器色域的纹理表示能力有限的问题来提高图像质量。

公开(公告)号：US20090015848A1

公开(公告)日：2009-01-15

申请号：US11953225

申请日：2007-12-10

Applicant: Yousun Bang ,  Sang-ho Kim

Inventor： Yousun Bang ,  Sang-ho Kim

IPC: G06F15/00

CPC classification number: H04N1/4092 ,  H04N1/603

Abstract: An apparatus and method of calculating a resolution. The method of calculating a resolution includes selecting a region having an edge from a test chart, calculating a spatial frequency response (SFR) of an image forming device that has printed the test chart from the selected region, setting a frequency that corresponds to a principal SFR among the calculated SFRs of the image forming device as a principal frequency of the SFR of the image forming device, and judging the set principal frequency as the resolution of the image forming device.

Abstract translation: 计算分辨率的装置和方法。 计算分辨率的方法包括从测试图中选择具有边缘的区域，计算已经从所选择的区域打印了测试图的图像形成设备的空间频率响应（SFR），设置与主体对应的频率 SFR作为图像形成装置的SFR的主频，并且将设定的主频判定为图像形成装置的分辨率。