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公开(公告)号：KR101144375B1
公开(公告)日：2012-05-10
申请号：KR1020100138779
申请日：2010-12-30
Applicant: 포항공과대학교 산학협력단
IPC: H04N5/21
CPC classification number: H04N5/217
Abstract: PURPOSE: A method for correcting image distortion and a device using the same are provided to estimate a central point of lens distortion in an image with the lens distortion, detect lines without distortion, and eliminate the lines. CONSTITUTION: A device obtains a central point vector which shows a lens distortion center from an image(S600). The device separates an image into at least two blocks(S610). The device determines a representative direction of at least two separated blocks(S620). The device eliminates an outlier vector from the blocks(S640). The device estimates the lens distortion center.
Abstract translation: 目的：提供一种用于校正图像失真的方法和使用该方法的装置，以估计具有透镜失真的图像中的透镜失真的中心点，检测线无失真，并消除线。 构成：装置获得从图像显示透镜变形中心的中心点矢量（S600）。 该装置将图像分成至少两个块（S610）。 该装置确定至少两个分开的块的代表方向（S620）。 该装置从块中消除异常值向量（S640）。 该设备估计镜头失真中心。
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公开(公告)号：KR1020110070392A
公开(公告)日：2011-06-24
申请号：KR1020090127199
申请日：2009-12-18
Applicant: 엘지디스플레이 주식회사 , 포항공과대학교 산학협력단
Abstract: PURPOSE: A liquid crystal display and a dimming control method thereof are provided to change an accumulated frame number by analyzing input image data in block units and determining a dimming value. CONSTITUTION: A liquid crystal display panel(10) displays image data. A backlight unit(16) divides a surface light source irradiated on the liquid crystal display panel into block units of a matrix type. A backlight control circuit analyzes the image data in block units. The backlight control circuit determines a dimming value of each block which is proportional to an accumulated mean value of each block of image brightness over frames. A backlight drive circuit(15) drives light sources by a pulse width modulation method for varying a duty rate according to the dimming value of each block.
Abstract translation: 目的：提供一种液晶显示器及其调光控制方法，通过以块为单位分析输入图像数据并确定调光值来改变累积的帧数。 构成：液晶显示面板（10）显示图像数据。 背光单元（16）将照射在液晶显示面板上的面光源分割成矩阵型的块单元。 背光控制电路以块为单位分析图像数据。 背光控制电路确定与每帧图像亮度的帧的累积平均值成比例的每个块的调光值。 背光驱动电路（15）通过脉冲宽度调制方式驱动光源，根据各块的调光值改变占空比。
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公开(公告)号：KR1020100079532A
公开(公告)日：2010-07-08
申请号：KR1020080138054
申请日：2008-12-31
Applicant: 포항공과대학교 산학협력단
CPC classification number: H04N1/58 , G06T5/006 , G06T2207/10024 , H04N5/3572 , H04N9/646
Abstract: PURPOSE: A method for detecting and correcting chromatic aberration, and an image processing device and a method using the same are provided to perform correction about chromatic aberration even in case of an image is not the image which is directly photographed. CONSTITUTION: An edge part of a video is distinguished into static region which changes a color below standard value and change region which changes a color above standard value(S702). A gray difference value of at least one standard value about comparison color(S703,S704). At least one pixel which an etch difference value excess an etch difference value range of the static area among pixels within the change area as an chromatic aberration generation area(S705,S706). Etch difference value correction is performed about pixels within the color aberration generation section(S707).
Abstract translation: 目的：提供一种用于检测和校正色差的方法，以及图像处理装置及其使用方法，即使在图像不是直接拍摄的图像的情况下，也执行关于色差的校正。 构成：视频的边缘部分被区分为将颜色改变到低于标准值的颜色和改变颜色高于标准值的变化区域（S702）的静态区域。 关于比较颜色的至少一个标准值的灰度差值（S703，S704）。 至少一个像素，其蚀刻差值超过变化区域内的像素之间的静态区域的蚀刻差值范围作为色差产生区域（S705，S706）。 对色差产生部内的像素进行蚀刻差值校正（S707）。
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公开(公告)号：KR101644189B1
公开(公告)日：2016-08-01
申请号：KR1020090127199
申请日：2009-12-18
Applicant: 엘지디스플레이 주식회사 , 포항공과대학교 산학협력단
Abstract: 본발명은표시영상의콘트라스트비를향상시킬수 있는액정표시장치및 그의디밍제어방법에관한것이다. 이액정표시장치는액정표시장치는영상데이터가표시되는액정표시패널; 다수의광원들을포함하여상기액정표시패널에조사되는면광원을매트릭스형태의블록단위로분할하는백라이트유닛; 상기영상데이터를상기블록단위로분석하고, 인접한여러프레임에걸친영상밝기의블록별누적평균값에비례하도록블록별디밍값을결정하되, 상기분석결과에기초한해당프레임의블록별대표값을각 위치에대응되는이웃한이전프레임들의블록별대표값들과비교하여영상의변화량을산출하고, 이산출결과를기초로누적프레임수를가변시키는백라이트제어회로; 및상기블록별디밍값에따라듀티비가가변되는펄스폭 변조로상기광원들을상기블록단위로구동하는백라이트구동회로를구비한다.
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公开(公告)号：KR101172629B1
公开(公告)日：2012-08-08
申请号：KR1020110000592
申请日：2011-01-04
Applicant: 포항공과대학교 산학협력단
IPC: H04N5/217
CPC classification number: G06T5/006
Abstract: Provided are an apparatus and method for processing an image. The apparatus includes a detector configured to form one group with pieces of pixel information on an edge of a received image, detect line segments, and generate a plurality of curves using the detected line segments, an optimizer configured to apply a weight to a cost function based on the plurality of generated curves according to distance from the center of the image, define a curve having a shorter length than a threshold value as an outlier and a curve having a greater length than the threshold value as an inlier, remove the outlier, and estimate a distortion level parameter, and a corrector configured to correct a position of a pixel with a correction value using the distortion level parameter. Accordingly, it is possible to correct lens distortion of even an image that has not been directly photographed, and to correct images generated by devices equipped with any lens rather than a specific camera or photographing apparatus.
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Patent Agency Ranking
公开(公告)号：KR1020170115344A
公开(公告)日：2017-10-17
申请号：KR1020160042880
申请日：2016-04-07
Applicant: 울산과학기술원 , 포항공과대학교 산학협력단
IPC: H01M4/13 , H01M4/04 , H01M4/62 , H01M10/0525 , H01M10/054 , H01G11/06
CPC classification number: H01M4/626 , H01G11/00 , H01M4/0402 , H01M4/13 , H01M4/134 , H01M4/139 , H01M4/1395 , H01M4/485 , H01M4/5825 , H01M4/622 , H01M10/052 , H01M10/054 , H01M2004/021
Abstract: 연신과수축과정에서도전기전도도가유지되는전극, 이의제조방법, 및이를포함하는전기화학소자를제공한다.
Abstract translation: 在拉伸和收缩过程中保持导电性的电极，制造该电极的方法以及包括该电极的电化学装置。
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公开(公告)号：KR1020110049529A
公开(公告)日：2011-05-12
申请号：KR1020090106580
申请日：2009-11-05
Applicant: 엘지디스플레이 주식회사 , 포항공과대학교 산학협력단
Abstract: PURPOSE: A liquid crystal display and a driving method of thereof are provided to secure a cross ratio by dividing an image into a predetermined number of block and driving a light source in a corresponding block. CONSTITUTION: In a liquid crystal display and a driving method of thereof, an LCD panel(10) displays image data. A backlight unit(16) includes a plurality of light sources and divides a surface light source projected on the LCD into a matrix blocks. A backlight driving circuit(15) the light sources by a unit block based on the PWM signal at blocks. A back light controls circuit(14) analyzes image data by a unit block. The back light control circuit adjust the dimming duty of the PWM signal in a corresponding block.
Abstract translation: 目的：提供一种液晶显示器及其驱动方法，以通过将图像划分成预定数量的块并驱动相应块中的光源来确保交叉比。 构成：在液晶显示器及其驱动方法中，LCD面板（10）显示图像数据。 背光单元（16）包括多个光源，并将投射在LCD上的表面光源划分为矩阵块。 背光驱动电路（15）基于块处的PWM信号的单位块的光源。 背光控制电路（14）通过单位块分析图像数据。 背光控制电路调整相应块中PWM信号的调光占空比。
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公开(公告)号：KR101000623B1
公开(公告)日：2010-12-10
申请号：KR1020080138054
申请日：2008-12-31
Applicant: 포항공과대학교 산학협력단
CPC classification number: H04N1/58 , G06T5/006 , G06T2207/10024 , H04N5/3572 , H04N9/646
Abstract: A method for detecting and correcting a chromatic aberration, and an apparatus and method for processing an image using the same are provided. A chromatic aberration is detected by dividing an edge portion of the image into static areas where a color varies below a reference value and a dynamic area where a color varies above the reference value, calculating a intensity difference value between at least one reference color and a comparative color for each of the static areas and the dynamic area, and determining at least one pixel having a intensity difference value exceeding a range of intensity difference values in the static areas among pixels in the dynamic area, as a chromatic aberration region. The chromatic aberration is corrected by correcting the intensity difference value for the pixels in the chromatic aberration region using a correction value in the intensity difference value range in the static area.
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公开(公告)号：KR101943488B1
公开(公告)日：2019-01-29
申请号：KR1020160042880
申请日：2016-04-07
Applicant: 울산과학기술원 , 포항공과대학교 산학협력단
IPC: H01M4/13 , H01M4/04 , H01M4/62 , H01M10/0525 , H01M10/054 , H01G11/06
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