公开(公告)号：US07212246B2

公开(公告)日：2007-05-01

申请号：US10714605

申请日：2003-11-18

Applicant: You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

Inventor： You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N7/012 ,  H04N7/0112

Abstract: An image signal format detection apparatus and method. The image signal format detection apparatus includes a first summed absolute difference (SAD) value calculation unit for calculating, from a previous field, a current field, and a next field of a time-consecutive image signal, a first SAD value with reference to pixel values of the current field and the previous field. A second SAD value calculation unit calculates a second SAD value with reference to pixel values of the current field and the next field. A pattern generation unit generates a detection pattern based on a result of a comparison of the first and second SAD values,; and a pattern analysis unit stores the detection pattern by field, compares the stored detection pattern of a series of fields with a predetermined verification pattern, and determines whether the image signal is an image signal produced in 2:2 pull-down. The apparatus detects an image signal produced in 2:2 pull-down by using the SAD values between fields, and can be applied to a deinterlacing device or the like.

Abstract translation: 一种图像信号格式检测装置及方法。 图像信号格式检测装置包括：第一相加绝对差值（SAD）值计算单元，用于从先前场计算时间连续图像信号的当前场和下一场，参考像素的第一SAD值 当前字段和前一个字段的值。 第二SAD值计算单元参照当前场和下一场的像素值来计算第二SAD值。 图案生成单元基于第一SAD值和第二SAD值的比较结果生成检测图案; 图案分析单元逐场存储检测图案，将存储的一系列场的检测图案与预定的验证图案进行比较，并且确定图像信号是否是以2：2下拉产生的图像信号。 该装置通过使用场之间的SAD值来检测在2：2下拉中产生的图像信号，并且可以应用于去隔行扫描装置等。

公开(公告)号：US20060044476A1

公开(公告)日：2006-03-02

申请号：US11210823

申请日：2005-08-25

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N7/0115

Abstract: A film mode detection apparatus and a method thereof can determine whether an input image is a film image by detecting existence/nonexistence of a caption in an input image field and using information of the remaining area of a field except for a caption area. The apparatus includes a caption detection unit to detect minimum values of difference values of information between successive fields from a field area including a caption area and a remaining field area excluding the caption area in an input image, respectively, and to judge whether a caption exists in a present field according to variances of the detected minimum values, a pattern generation unit to generate a pattern of a certain area of the field using the difference values of the information between the successive fields according to whether the caption exists, and a decision unit to determine whether the input image is a film image using the generated pattern. Accordingly, deterioration of picture quality due to frequency on/off operation of a film mode caused by an error of film mode judgment can be prevented.

Abstract translation: 电影模式检测装置及其方法可以通过检测输入图像字段中的字幕的存在/不存在以及使用除字幕区域之外的场的剩余区域的信息来确定输入图像是否为胶片图像。 该装置包括：字幕检测单元，用于分别检测来自包括字幕区域和除输入图像中的字幕区域之外的剩余字段区域的连续字段之间的信息的差值的最小值，并判断是否存在字幕 根据检测到的最小值的方差在当前场中，使用根据是否存在字幕的连续字段之间的信息的差值来生成场的某个区域的模式的模式生成单元和判定单元 以确定输入图像是否是使用所生成的图案的胶片图像。 因此，可以防止由于胶片模式判断的误差引起的胶片模式的频率开/关操作导致的图像质量的劣化。

公开(公告)号：US07321396B2

公开(公告)日：2008-01-22

申请号：US10703568

申请日：2003-11-10

Applicant: You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

Inventor： You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N7/012 ,  H04N5/145

Abstract: A deinterlacing apparatus and method thereof include a motion compensation unit implementing motion-compensated temporal interpolation for each of estimated motion vectors with reference to a previous field and a next field, which are respectively ahead of and behind a current field to be interpolated, producing interpolation values of a pixel to be interpolated, and outputting a selected value from the interpolation values as a first interpolation value. Further, a spatial interpolation unit producing a second interpolation value of the pixel to be interpolated using values of pixels around the pixel to be interpolated, and an output unit mixing the first and second interpolation.

Abstract translation: 一种去隔行扫描装置及其方法包括：运动补偿单元，其针对前述场和后一场，分别在待内插的当前场之前和之后，对每个估计的运动矢量实施运动补偿时间插值， 将要内插的像素的值作为第一内插值从插补值输出。 此外，空间内插单元使用要被内插的像素周围的像素的值来产生要内插的像素的第二内插值，以及混合第一和第二插值的输出单元。

公开(公告)号：US20070040935A1

公开(公告)日：2007-02-22

申请号：US11376334

申请日：2006-03-16

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N5/145 ,  H04N7/012 ,  H04N7/0137 ,  H04N7/014 ,  H04N21/4884

Abstract: An apparatus for converting an image signal includes a motion estimation unit which estimates a motion vector using current and reference fields; a ticker region detection unit which detects a ticker region of an image using the estimated motion vector where an image moving with a constant speed and direction in a current field is found; a motion information analysis unit which determines whether or not there exists an image moving with a constant speed and direction in the ticker region based on the frequency of a motion vector estimated within the detected ticker region; and an interpolation unit which interpolates the current field by controlling a degree of temporal and spatial interpolations using an output of the motion information analysis unit. Accordingly, interpolation is differently applied in accordance with characters and graphics moving with a constant speed and direction in an input image, so that picture quality can be enhanced.

Abstract translation: 用于转换图像信号的装置包括运动估计单元，其使用当前和参考场来估计运动矢量; 使用估计的运动矢量来检测图像的行情区域的行情区域检测单元，其中发现以当前场中的恒定速度和方向移动的图像; 运动信息分析单元，其基于在所检测到的代码区域内估计的运动矢量的频率来确定是否存在以所述行情区域中的恒定速度和方向移动的图像; 以及内插单元，其使用运动信息分析单元的输出来控制时间和空间内插的程度来内插当前场。 因此，根据在输入图像中以恒定的速度和方向移动的字符和图形，不同地应用插值，从而可以提高图像质量。

公开(公告)号：US20060072035A1

公开(公告)日：2006-04-06

申请号：US11237959

申请日：2005-09-29

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N7/0115 ,  H04N5/253 ,  H04N19/132 ,  H04N19/427 ,  H04N19/587 ,  H04N19/85

Abstract: An image processing device and method to select a field to use in interpolation, if an input image is a film image. The image processing device includes a field selector to select a field to use to interpolate a current field based on difference values in field data among first, second, and third fields being consecutively input in an input image, the field to use to interpolate the current image being one of the first and the third fields and the current field being the second field, a film detector to generate a pattern based on the difference values in the field data between the first, second, and third fields and to determine whether the input image is a film image based on the generated pattern, and an interpolator to interpolate the second field using the one of the first and third field selected by the field selector if the film detector determines the input image to be a film image. Accordingly, when the input image is a film image without a bad-edit, the interpolation process is executed by selecting two temporarily consecutive fields of a field to be interpolated, and using the field with a smaller difference values in field data from the field to be interpolated and a problem of judder in images can be resolved.

Abstract translation: 如果输入图像是胶片图像，则选择要在插值中使用的场的图像处理装置和方法。 图像处理装置包括场选择器，用于基于在输入图像中连续输入的第一，第二和第三场中的场数据中的差值来选择用于内插当前场的场，所述场用于内插当前场 图像是第一和第三场中的一个，当前场是第二场，膜检测器，用于基于第一场，第二场和第三场之间的场数据中的差值生成模式，并确定输入 图像是基于所生成的图案的胶片图像，以及内插器，如果胶片检测器将输入图像确定为胶片图像，则使用场选择器选择的第一和第三场中的一个来内插第二场。 因此，当输入图像是没有不良编辑的胶片图像时，通过选择要插值的场的两个临时连续的场来执行内插处理，并且使用来自场的场数据中具有较小差值的场 被插值，可以解决图像抖动问题。

公开(公告)号：US07239353B2

公开(公告)日：2007-07-03

申请号：US10704663

申请日：2003-11-12

Applicant: Jong-hwan Lee ,  You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

Inventor： Jong-hwan Lee ,  You-young Jung ,  Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: H04N7/0112 ,  H04N5/144 ,  H04N7/012 ,  H04N21/4884

Abstract: An image format conversion apparatus including a 3:2 pull-down detection part determining whether a current field out of plural fields continuous in time is an image of a 3:2 pull-down format produced by a 3:2 pull-down process; a scroll text/graphic data detection part determining whether scroll motions exist on the current field; a 3:2 pull-down compensation part calculating interpolation values for pixels of the current field to be interpolated by using a 3:2 pull-down interpolation method; an IPC part calculating interpolation values for pixels of the current field to be interpolated by using a second interpolation method; and an output selection part for selectively outputting either the interpolation values of the 3:2 pull-down compensation part or the interpolation values of the IPC part based on results of the determinations of the scroll text/graphic detection part and the 3:2 pull-down detection part.

Abstract translation: 一种图像格式转换装置，包括：3：2下拉检测部分，确定时间上连续的多个字段中的当前字段是否是通过3：2下拉处理产生的3：2下拉格式的图像; 确定滚动动作是否存在于当前场上的滚动文本/图形数据检测部分; 3：2下拉补偿部分，使用3：2下拉插值法计算要内插的当前场的像素的内插值; IPC部分通过使用第二插值方法来计算要内插的当前场的像素的内插值; 以及输出选择部分，用于基于滚动文本/图形检测部分的确定结果和3：2拉伸的结果选择性地输出3：2下拉补偿部分的内插值或IPC部分的内插值 下降检测部分。

公开(公告)号：US20070025613A1

公开(公告)日：2007-02-01

申请号：US11441148

申请日：2006-05-26

Applicant: Young-ho Lee ,  Seung-joon Yang ,  Ki-hyun Hong

Inventor： Young-ho Lee ,  Seung-joon Yang ,  Ki-hyun Hong

IPC: G06K9/00 ,  G09G3/36

CPC classification number: G09G3/3413 ,  G09G3/342 ,  G09G2310/0235 ,  G09G2310/024 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/062 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/103 ,  G09G2340/06 ,  G09G2360/16

Abstract: A field sequential display apparatus and an image display method thereof are provided. A field sequential display apparatus includes: a color-coordinate conversion unit which analyses image state information of a plurality of input image signals of primary colors representing one image and converts the input image signals of primary colors into image signals of primary colors and at least one image signal of specific colors by using the image state information; a display panel displaying the converted image signals; and a light source driving unit which sequentially drives light sources corresponding to colors of the converted image signals. Accordingly, color breakup can be prevented, and image quality can be improved.

Abstract translation: 提供场顺序显示装置及其图像显示方法。 场顺序显示装置包括：颜色坐标转换单元，分析表示一个图像的原色的多个输入图像信号的图像状态信息，并将原色的输入图像信号转换为原色的图像信号和至少一个 通过使用图像状态信息的特定颜色的图像信号; 显示转换后的图像信号的显示面板; 以及光源驱动单元，其顺序地驱动与转换的图像信号的颜色对应的光源。 因此，可以防止颜色分解，并且可以提高图像质量。

公开(公告)号：US20060077292A1

公开(公告)日：2006-04-13

申请号：US11237975

申请日：2005-09-29

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N11/20

CPC classification number: H04N7/0115 ,  H04N5/21 ,  H04N7/012 ,  H04N7/0147 ,  H04N21/4884

Abstract: An image processing apparatus using a judder-map and a method thereof. The image processing apparatus using a judder-map includes: a field storage block to receive an input interlaced video signal including an input image having a plurality of consecutive fields, a film detecting block to receive the plurality of the consecutive fields from the field storage block and to detect whether the input image is an image in a film mode, a judder-map generating block to detect judder created on a pixel or block of neighboring fields among the plurality of consecutive fields provided from the field storage block to generate a judder-map, and an image interpolating block to perform image interpolation using the judder-map if the input video signal is detected to be an image in the film mode and to generate and output a progressive video signal. The image processing apparatus prevents the creation of judder on CGI (Computer Graphic Imagery) or subtitles, to which pulldown technologies are not applied.

公开(公告)号：US20060044467A1

公开(公告)日：2006-03-02

申请号：US11210818

申请日：2005-08-25

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N7/01

CPC classification number: G11B27/28 ,  H04N7/0115

Abstract: A film mode detection apparatus capable of detecting a bad edit and a method thereof that can detect a bad edit independently of a film pattern. The film mode detection apparatus includes a pattern generation unit to generate a pattern using difference values of information between sequential fields of an input image, a bad edit detection unit to detect extremum values of the difference values of the information between the fields and to judge whether a present field corresponds to a bad edit according to variances of the detected extremum values, and a decision unit to decide whether the input image is a film image using pattern information generated from the pattern generation unit and bad edit detection information from the bad edit detection unit. Accordingly, the apparatus can cope with all kinds of bad edits and thus can prevent an error during the judgment of a film mode.

Abstract translation: 能够检测不良编辑的电影模式检测装置及其方法，其可独立于胶片图案检测不良编辑。 胶片模式检测装置包括：图案生成单元，用于使用输入图像的顺序字段之间的信息的差值生成图案，坏的编辑检测单元，用于检测场之间的信息的差值的极值，并判断是否 现场对应于根据检测到的极值的方差的不良编辑，以及判定单元，用于使用从模式生成单元生成的模式信息来判定输入图像是胶卷图像还是来自不良编辑检测的差的编辑检测信息 单元。 因此，该装置可以应对各种不良编辑，从而可以防止在电影模式的判断期间的错误。

公开(公告)号：US20050018086A1

公开(公告)日：2005-01-27

申请号：US10871373

申请日：2004-06-21

Applicant: Young-ho Lee ,  Seung-joon Yang

Inventor： Young-ho Lee ,  Seung-joon Yang

IPC: H04N5/253 ,  H04N7/01 ,  H04N9/64

CPC classification number: H04N7/0115 ,  H04N7/012

Abstract: An image signal detecting apparatus and a method thereof capable of detecting a 2:2 pull-down image as well as a 3:2 pull-down image with respect to an input image signal. The image signal detecting apparatus includes a SAD calculation unit for calculating summed absolute differences (SADs) among a current field (n), a previous field (n−1), and a next field (n+1) with respect to consecutively input image signals, a pull-down image detection unit, a still image determining unit , a bad-edit detection unit for detecting a bad-edit in the detected pull-down image, and a decision unit for deciding whether the input image signal is the pull-down image or not based on the result of detecting the pull-down image, the result of determining whether the input image signal is a still image by the still image judgment unit, and the result of detecting the occurrence of the bad-edit.

Abstract translation: 一种能够相对于输入图像信号检测2:2下拉图像以及3:2下拉图像的图像信号检测装置及其方法。 图像信号检测装置包括：SAD计算单元，用于计算当前场（n），先前场（n-1）和下一个场（n + 1）之间相对于连续输入图像的累加绝对差（SAD） 信号，下拉图像检测单元，静止图像确定单元，用于检测检测到的下拉图像中的不良编辑的坏编辑检测单元，以及用于判定输入图像信号是否为拉 基于检测下拉图像的结果，确定输入图像信号是否是静止图像判断单元的静止图像的结果，以及检测错误编辑的发生的结果的结果。