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公开(公告)号：KR101661215B1
公开(公告)日：2016-09-30
申请号：KR1020100078856
申请日：2010-08-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04N5/2355 , G06T5/008 , G06T5/50 , G06T2207/10144
Abstract: 본발명의실시예에따르면, 노출정도가다른적어도하나이상의로우다이나믹레인지영상들을포화영역, 저포화영역및 비포화영역으로구별하고상기비포화영역의패턴이얼마나유사한지나타내는특징맵들을생성한후 움직임화소및 정지화소를포함하는최종특징맵들을도출하여상기최종특징맵들과상기로우다이나믹레인지영상들을비교하여상기로우다이나믹레인지영상들에포함된움직임영역및 정지영역을정의하고정의된상기움직임영역에제1잡음제거필터를사용하고, 정의된상기정지영역에제2잡음제거필터를사용하여잡음을제거한후 잡음이제거된상기움직임영역의가중치를잡음이제거된상기정지영역의가중치보다낮게하여상기로우다이나믹레인지영상들에대응되는레디언스맵을생성하는영상처리장치및 영상처리방법을제공한다.
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公开(公告)号：KR1020160073249A
公开(公告)日：2016-06-24
申请号：KR1020140181815
申请日：2014-12-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04N5/23229 , G06T5/006 , G06T2207/10024 , H04N9/045 , H04N9/07 , G06T5/005 , G06T5/30 , H04N5/217
Abstract: 본발명의하나의실시형태에따른이미지처리장치(image processing device)는노멀노출(normal exposure)의이미지와언더노출(under exposure)의이미지를수신하여컬러디퍼런스(color difference)를생성하는컬러변환부, 상기노멀노출의이미지내 컬러프린지를검출하여상기컬러프린지검출정보를생성하는컬러프린지검출부, 상기컬러프린지검출정보와상기컬러디퍼런스를이용하여웨이트맵을생성하는웨이트맵 형성부그리고상기컬러디퍼런스및 상기웨이트맵을이용하여컬러프린지가제거된최종이미지를생성하는이미지융합부를포함한다.
Abstract translation: 本发明涉及一种去除彩色条纹的图像处理装置。 根据本发明实施例的图像处理装置包括：颜色变换单元，其接收正常曝光图像和欠曝光图像，并且产生色差; 彩色条纹检测单元，其检测正常曝光图像中的彩色条纹，并生成彩色条纹检测信息; 权重映射形成单元，其通过使用所述色条检测信息和所述色差来生成权重映射; 以及图像融合单元，其通过使用色差和权重映射来生成已经从中去除了颜色边缘的最终图像。
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公开(公告)号：KR101551690B1
公开(公告)日：2015-09-09
申请号：KR1020090057723
申请日：2009-06-26
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04N5/235 , G06T5/50 , G06T2207/20208 , H04N5/2355
Abstract: 본발명은다이나믹레인지가넓으면서도계조가우수한이미지에관한데이터를획득할수 있는디지털촬영장치, 그제어방법및 이를실행하기위한프로그램을저장한기록매체를위하여, (i) 노출이상이하도록노출을증가시키며제1이미지데이터내지제P이미지데이터를획득하는촬상소자와, (ii) 제j이미지데이터에있어서, i번째화소가제1레벨내지제N레벨의 N개의레벨중 어느한 레벨에속하도록휘도에따라분류하여 i번째화소에 i번째화소가속하는레벨인레벨값 L를부여하되각 레벨에속하는화소들의개수가균등하도록모든화소들을분류하며, 제1이미지데이터내지제P이미지데이터각각에대해분류하는멀티레벨문턱맵생성부와, (iii) 제1이미지데이터내지제P이미지데이터중 적정노출에서획득한이미지데이터를제R이미지데이터라할 시, 제j이미지데이터의 i번째화소에부과되는움직임데이터 M를획득하되, 제1이미지데이터내지제P이미지데이터각각의모든화소에부과되는움직임데이터를획득하는움직임데이터획득부와, (iv) 제j이미지데이터의 i번째화소에부과되는제1가중치데이터 ME를획득하되, 제1이미지데이터내지제P이미지데이터각각의모든화소에부과되는제1가중치데이터를획득하는제1가중치데이터획득부와, (v) 제1가중치데이터 ME를부가하여제1이미지데이터내지제P이미지데이터의 i번째화소들의데이터를합성하여최종이미지데이터의 i번째화소의데이터를획득함으로써, 최종이미지데이터의화소들의데이터를획득하는최종이미지데이터획득부를구비하는것을특징으로하는디지털촬영장치를제공한다.
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公开(公告)号：KR101313637B1
公开(公告)日：2013-10-02
申请号：KR1020060051984
申请日：2006-06-09
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: G06T5/50 , G06T5/009 , G06T5/40 , G06T2207/20021
Abstract: 본 발명은 콘트라스트를 개선하기 위한 영상 처리 방법 및 장치에 관한 것이다. 본 발명에 따른 영상 처리 장치는 입력 영상에 콘트라스트 개선 처리를 수행할 것인지 판별하는 판별부; 콘트라스트 개선 처리를 수행하는 것으로 판별되면 입력 영상을 인텐서티 매핑을 이용하여, 서로 노출 시간이 다른 영상의 관계를 가지는 다수개의 영상으로 생성하는 인텐서티 매핑 수행부; 및 생성된 다수개의 영상을 합성하는 영상 합성부를 포함한다. 본 발명에 따르면, 종래의 콘트라스트 개선 과정에서 발생하는 컬러가 변하는 현상이나 의사 외곽 현상을 줄일 수 있다.
콘트라스트 개선, 인텐서티 매핑, 영상 합성, 카메라 응답 함수, 다이나믹 레인지-
Patent Agency Ranking
公开(公告)号：KR1020130031572A
公开(公告)日：2013-03-29
申请号：KR1020110095232
申请日：2011-09-21
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04N5/213 , G06T5/002 , G06T5/20 , G06T2207/20028 , G06T2207/20032 , H04N5/217 , H04N9/646 , H04N5/208
Abstract: PURPOSE: An image processing method and device are provided to eliminate noise of an image generated in general environment, low level light environment, and high sensitivity environment. CONSTITUTION: An RGB input image signal is converted into a YCbCr input image signal(610). The YCbCr input image signal is divided into a low frequency component which a high frequency component and noise are eliminated(620). The noise of the divided high frequency component is eliminated(630). The high frequency component which the divided low frequency component and the noise are eliminated is combined(640). An input image comprises a luminance component and a chrominance component. [Reference numerals] (610) Converting an RGB input image signal into a YCbCr input image signal; (620) Dividing the YCbCr input image signal into a high frequency component and a low frequency component in which noise is eliminated; (630) Eliminating the noise of the divided high frequency component; (640) Combining the divided low frequency component and the high frequency without noise; (AA) Start; (BB) End
Abstract translation: 目的：提供一种图像处理方法和装置，以消除在一般环境，低水平光环境和高灵敏度环境下产生的图像的噪声。 构成：将RGB输入图像信号转换为YCbCr输入图像信号（610）。 YCbCr输入图像信号被分为高频分量和噪声消除的低频分量（620）。 消除了分频高频分量的噪声（630）。 将分频低频分量和噪声消除的高频分量组合（640）。 输入图像包括亮度分量和色度分量。 （610）将RGB输入图像信号转换为YCbCr输入图像信号; （620）将YCbCr输入图像信号分割为消除噪声的高频分量和低频分量; （630）消除分频高频分量的噪声; （640）组合分频低频分量与高频无噪声; （AA）开始; （BB）结束
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公开(公告)号：KR1020120016475A
公开(公告)日：2012-02-24
申请号：KR1020100078855
申请日：2010-08-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: H04N1/4092 , G06T5/009 , G06T5/20 , G06T2207/10024 , G06T2207/10144 , G06T2207/20192 , G06T2207/20208 , G06T2207/20221 , H04N1/58 , H04N5/2355
Abstract: PURPOSE: An image processing method and an image processing device are provided to obtain an image with corrected lightness. CONSTITUTION: A first image extracting unit(123) uses an edge-preserving smoothing filter in a radiance map. The first image extracting unit extracts an image whose edge part is preserved or flat part is smoothed. A second image extracting unit(125) applies a correction curve to a first image. The second image extracting unit extracts a second image with a dynamic range that a user visually recognizes. A display image extracting unit(127) adjusts the hue value and chroma values of the second image. The display image extracting unit extracts an image with corrected image.
Abstract translation: 目的：提供一种图像处理方法和图像处理装置，以获得具有校正亮度的图像。 构成：第一图像提取单元（123）在辐射图中使用边缘保持平滑滤波器。 第一图像提取单元提取其边缘部分保留的图像或平坦部分被平滑的图像。 第二图像提取单元（125）对第一图像应用校正曲线。 第二图像提取单元以用户可视识别的动态范围提取第二图像。 显示图像提取单元（127）调节第二图像的色调值和色度值。 显示图像提取单元提取具有校正图像的图像。
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公开(公告)号：KR1020100084458A
公开(公告)日：2010-07-26
申请号：KR1020090098876
申请日：2009-10-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
CPC classification number: G06T3/4015 , G06T7/13 , G06T2207/10024
Abstract: PURPOSE: An image interpolating method using pattern characteristics of a color filter array and an apparatus thereof are provided to detect an edge direction from DAID(Differences of Absolute Inter-channel Differences) in consideration of properties of CFA, thereby directly interpolating three kinds of color pixel values from a CFA image along with the edge direction. CONSTITUTION: An edge direction detector(110) calculates difference values between absolute channels based on a central pixel according to pattern properties of R,G,B pixels arranged in a color filter array. An edge direction is detected using the calculated difference values. A weight calculator(120) calculates a directional weight according to the pattern properties of the R,G,B pixels. An interpolator(130) interpolates a unknown pixel using the color difference values and the calculated directional weight value in the detected edge direction.
Abstract translation: 目的：提供一种使用滤色器阵列的图案特性的图像内插方法及其装置，用于根据CFA的性质从DAID（绝对的信道间差异）检测边缘方向，从而直接内插三种颜色 来自CFA图像的像素值以及边缘方向。 构成：边缘方向检测器（110）根据布置在滤色器阵列中的R，G，B像素的图案特性，基于中心像素来计算绝对通道之间的差值。 使用计算的差值检测边缘方向。 权重计算器（120）根据R，G，B像素的图案特性来计算方向权重。 插值器（130）使用所检测的边缘方向上的色差值和计算出的方向权重值内插未知像素。
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公开(公告)号：KR1020070119879A
公开(公告)日：2007-12-21
申请号：KR1020060054375
申请日：2006-06-16
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
IPC: H04N7/01
CPC classification number: G06T3/4084 , G06T7/13 , H04N7/014 , H04N7/0142
Abstract: A method and an apparatus for converting resolution of images are provided to solve a problem that because a point spread function in the same direction is used during a resolution conversion process, RF components cannot be properly reflected, degrading picture quality. An edge detecting unit(340) detects an edge region from an inputted low-resolution video frame and the direction of the edge region to generate edge map and edge direction information. A directional function generating unit(350) generates a directional point spread function based on the generated edge map and edge direction information. An initial interpolation unit(310) interpolates the inputted low-resolution video frame into a high-resolution video frame. A residual calculating unit generates a residual term by using the inputted low-resolution video frame, the high-resolution video frame and the directional point spread function. An updating unit performs updating on the interpolated high-resolution video frame according to results obtained by comparing the residual term and a certain threshold value.
Abstract translation: 提供了用于转换图像分辨率的方法和装置，以解决由于在分辨率转换处理期间使用相同方向的点扩散函数的问题，RF分量不能被适当地反映，降低图像质量。 边缘检测单元（340）从输入的低分辨率视频帧和边缘区域的方向检测边缘区域以产生边缘图和边缘方向信息。 方向函数生成单元（350）基于生成的边缘图和边缘方向信息生成定向点扩展函数。 初始内插单元（310）将输入的低分辨率视频帧内插成高分辨率视频帧。 剩余计算单元通过使用输入的低分辨率视频帧，高分辨率视频帧和方向点扩展函数来产生残余项。 更新单元根据通过比较剩余项和特定阈值而获得的结果，对内插高分辨率视频帧执行更新。
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公开(公告)号：KR1020060124502A
公开(公告)日：2006-12-05
申请号：KR1020050046465
申请日：2005-05-31
Applicant: 삼성전자주식회사 , 서강대학교산학협력단
IPC: H04N5/21
CPC classification number: G06T5/002 , G06T5/20 , G06T5/50 , G06T7/12 , G06T2207/20012 , G06T2207/20192
Abstract: A false contour removing method and a display device to which the same is applied are provided to prevent the deterioration of a signal component. A flatness area removing member(100) detects position information of a contour line including a false contour and an edge in the first input image by the difference of brightness values between the first and second input images. A bit number reducing member(110) outputs the second input image with a small number of bits compared to the first input image. A contour detecting member(120) includes the first and second calculation members(121,123) and a detecting member(125). The first calculation member calculates the difference of brightness values of the first and second input images. The second calculation member calculates an absolute value of the calculated value by the first calculation member. A false contour detecting member(200) measures the homogeneity and detects a false contour area.
Abstract translation: 为了防止信号成分的劣化，设置有假轮廓去除方法和与其同时使用的显示装置。 平面区域移除构件（100）通过第一和第二输入图像之间的亮度差的差异来检测包括第一输入图像中的假轮廓和边缘的轮廓线的位置信息。 与第一输入图像相比，位数减少构件（110）输出具有少量位的第二输入图像。 轮廓检测构件（120）包括第一和第二计算构件（121,123）和检测构件（125）。 第一计算部件计算第一和第二输入图像的亮度值的差。 第二计算部件通过第一计算部件计算出计算值的绝对值。 假轮廓检测构件（200）测量均匀性并检测假轮廓区域。
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