公开(公告)号：US20080095244A1

公开(公告)日：2008-04-24

申请号：US11974964

申请日：2007-10-17

Applicant: Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

Inventor： Han-Sang Kim ,  Young-Hun Joo ,  Kwang-Pyo Choi

IPC: H04N7/26

CPC classification number: H04N19/527

Abstract: Disclosed are a deblocking filtering method for image data and a deblocking filter. According to the deblocking filtering method for image data and the deblocking filter, when computation of BS values for each boundary based on one of horizontal and vertical directions from input image data is completed, it is possible to estimate BS values for each boundary based on a direction different from the currently selected direction by using the computed BS values. Further, deblocking filtering is performed based on corresponding directions according to the estimated values, so that the deblocking filtering can be completely performed with only a BS value of boundaries based on a selected one direction. Consequently, a BS value computation process necessarily required in a deblocking filtering process can be considerably reduced, and thus time required in the operation process of a deblocking filter can also be considerably reduced.

Abstract translation: 公开了一种用于图像数据和去块滤波器的去块滤波方法。 根据图像数据的去块滤波方法和解块滤波器，当完成了基于输入图像数据的水平方向和垂直方向之一的每个边界的BS值的计算时，可以基于一个边界估计每个边界的BS值 方向与当前选择的方向不同。 此外，根据估计值，根据相应的方向进行解块滤波，从而可以仅基于选定的一个方向的边界的BS值来完全去除滤波。 因此，可以显着地减少去块滤波处理中必需的BS值计算处理，并且因此也可以显着地减少去块滤波器的操作处理所需的时间。

公开(公告)号：US20080095240A1

公开(公告)日：2008-04-24

申请号：US11893811

申请日：2007-08-17

Applicant: Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

Inventor： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

IPC: H04B1/66

CPC classification number: H04N19/523 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/43

Abstract: Disclosed is a method for interpolating chrominance signals in a video encoder and a decoder. The method includes the steps of accessing a memory unit to load an integer pixel value with regard to a plurality of motion compensation blocks, searching for a location of a motion vector s to perform sub-pixel interpolation of chrominance signals regarding the blocks and performing ¼ sub-pixel interpolation by row-based and column-based shifting when the motion vector indicates a ¼ location pixel with regard to the blocks. Also disclosed is an apparatus for performing the interpolating method described and a computer program product which when loaded into a computer system performs the interpolating method described.

Abstract translation: 公开了一种用于在视频编码器和解码器中内插色度信号的方法。 该方法包括以下步骤：访问存储器单元以加载关于多个运动补偿块的整数像素值，搜索运动矢量s的位置以执行关于块的色度信号的子像素插值，并执行1/4 当运动矢量指示关于块的1/4位置像素时，通过基于行和列的移位进行子像素插值。 还公开了一种用于执行所描述的内插方法的装置和当被加载到计算机系统中时执行所描述的内插方法的计算机程序产品。

公开(公告)号：US20080084488A1

公开(公告)日：2008-04-10

申请号：US11973510

申请日：2007-10-09

Applicant: Han-Sang Kim ,  Bong-Gon Kim ,  Chan-Yul Kim ,  Young-Hun Joo

Inventor： Han-Sang Kim ,  Bong-Gon Kim ,  Chan-Yul Kim ,  Young-Hun Joo

IPC: H04N9/64 ,  H04N5/228 ,  H04N5/335

CPC classification number: G06T5/005 ,  G06T5/20 ,  G06T2207/10024 ,  H04N5/3595 ,  H04N5/372 ,  H04N9/045 ,  H04N19/86

Abstract: Disclosed is a digital photographing apparatus which includes a lens for optically photographing an object, a CCD for performing photoelectric conversion for an image photographed by the lens, a buffer unit for storing the image converted by the CCD in a unit of frame or field, a controller for determining if a smear has occurred in the image output from the buffer unit, and correcting a pixel value of an image area in which the smear has occurred, an image processor for compressing the image output from the CCD by using a scheme according to characteristics and sizes of a display unit, or restoring the compressed image into an original image under the control of the controller and the display unit for displaying the image output from the image processor on a screen.

Abstract translation: 公开了一种数字拍摄装置，其包括用于光学拍摄物体的透镜，用于对由镜头拍摄的图像进行光电转换的CCD，用于以帧或场为单位存储由CCD转换的图像的缓冲单元， 控制器，用于确定从缓冲单元输出的图像中是否发生了拖尾，以及校正已经发生拖尾的图像区域的像素值;图像处理器，用于压缩从CCD输出的图像，使用根据 显示单元的特征和尺寸，或者在控制器和显示单元的控制下将压缩图像恢复为原始图像，以在屏幕上显示从图像处理器输出的图像。

公开(公告)号：US20080080623A1

公开(公告)日：2008-04-03

申请号：US11901589

申请日：2007-09-18

Applicant: Yong-Deok Kim ,  Young-O Park ,  Kwang-Pyo Choi ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Kwan-Woong Song ,  Chang-Su Kim

Inventor： Yong-Deok Kim ,  Young-O Park ,  Kwang-Pyo Choi ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Kwan-Woong Song ,  Chang-Su Kim

IPC: H04B1/66

CPC classification number: H04N19/61 ,  H04N19/895

Abstract: A method and apparatus for error concealment in decoding of a moving picture. The method includes the steps of determining an erroneous macro block in a present frame when the moving picture is decoded, finding a first macro block having a highest similarity to the erroneous macro block and a second macro block having a next highest similarity to the erroneous block in a previous frame by comparing adjacent pixels of respective blocks in the previous frame with adjacent pixels of the erroneous block in the present frame; and replacing the erroneous block by using an average between the found macro blocks having the highest similarity and the second highest similarity to thereby conceal the erroneous macro block. The apparatus includes a parser, an entropy decoder, an inverse quantizer, an inverse converter, and a concealment unit that uses motion compensation from a previous frame to correct a macro block in a current frame.

Abstract translation: 一种用于运动图像解码中的错误隐藏的方法和装置。 该方法包括以下步骤：当解码运动图像时，确定当前帧中的错误宏块，找到与错误宏块具有最高相似度的第一宏块和与错误块具有次高相似性的第二宏块 在前一帧中通过将前一帧中的各个块的相邻像素与当前帧中的错误块的相邻像素进行比较; 并且通过使用具有最高相似度的所找到的宏块与第二高相似度之间的平均值来替换错误块，从而隐藏错误的宏块。 该装置包括解析器，熵解码器，逆量化器，逆变换器和隐藏单元，其使用来自前一帧的运动补偿来校正当前帧中的宏块。

公开(公告)号：US20070189286A1

公开(公告)日：2007-08-16

申请号：US11642270

申请日：2006-12-20

Applicant: Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

Inventor： Young-O Park ,  Bong-Gon Kim ,  Kwang-Pyo Choi ,  Chang-Sup Shim ,  Young-Hun Joo

IPC: H04J3/16 ,  H04L12/56

CPC classification number: H04L29/06027 ,  H04L65/604 ,  H04L65/608

Abstract: Disclosed is a method for depacketization of multimedia packet data, the method comprising: a context-aware step of parsing and recording a start code, which can identify each frame, in a first portion of a payload of a real-time transport protocol (RTP) packet; and a step of performing depacketization according to each packet by using the start code.

Abstract translation: 公开了一种用于多媒体分组数据的分组化的方法，所述方法包括：在实时传输协议（RTP）的有效载荷的第一部分中解析和记录可识别每个帧的起始码的上下文感知步骤 ）包; 以及通过使用起始码根据每个分组执行解包的步骤。

公开(公告)号：US20070189183A1

公开(公告)日：2007-08-16

申请号：US11593905

申请日：2006-11-07

Applicant: Yong-Deok Kim ,  Young-Hun Joo ,  Han-Sang Kim

Inventor： Yong-Deok Kim ,  Young-Hun Joo ,  Han-Sang Kim

IPC: H04J1/16

CPC classification number: H04N21/44004 ,  H04N21/23406

Abstract: An apparatus for adjusting an output bit rate of a TS packet includes: a TS processing unit for processing the TS packet; an output buffer for buffering and outputting TS packets processed by the TS processing unit; and a bit rate adjustment unit for separating a counting value of packet output time into an integral part and a decimal part by a preset reference cipher according to ticks, generating TS packet output signals for outputting one TS packet stored in the output buffer if a value obtained by performing first counting according to the ticks reaches a value of the integral part, resetting a first count value, and decreasing the first count value by one if a carry occurs in a value obtained by performing second counting for achieving an increment by the value of the stored decimal part whenever the TS packet output signals are generated.

Abstract translation: 用于调整TS分组的输出比特率的装置包括：TS处理单元，用于处理TS分组; 用于缓冲和输出由TS处理单元处理的TS分组的输出缓冲器; 以及比特率调整单元，用于根据刻度将分组输出时间的计数值分解为整数部分和小数部分，并产生用于输出存储在输出缓冲器中的一个TS分组的TS分组输出信号，如果值 通过根据刻度执行第一计数获得的值达到积分部分的值，复位第一计数值，并且如果在通过执行第二计数而获得的值中进行进位而将第一计数值减1， 每当产生TS分组输出信号时，存储的小数部分。

公开(公告)号：US08804828B2

公开(公告)日：2014-08-12

申请号：US12389893

申请日：2009-02-20

Applicant: Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo ,  Byeung-Woo Jeon ,  Bong-Soo Jung ,  Kwang-Hyun Won

Inventor： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo ,  Byeung-Woo Jeon ,  Bong-Soo Jung ,  Kwang-Hyun Won

IPC: H04N7/50 ,  H04N7/26

CPC classification number: H04N7/26861 ,  H04N19/103 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61

Abstract: Disclosed is a method of encoding a direct mode when coding moving images, the method includes finding a prediction and a cost for each of a plurality of direct modes including a backward-based temporal direct mode and a forward-based temporal direct mode with respect to a current block to be encoded and determining one mode having the lowest cost as a result of comparing the costs as an optimal encoding mode, thereby performing encoding the direct mode.

Abstract translation: 公开了一种在编码运动图像时对直接模式进行编码的方法，该方法包括针对包括基于后向时间直接模式和基于前向的时间直接模式的多个直接模式中的每一个寻找预测和成本 作为要编码的当前块，并且通过将成本作为最佳编码模式进行比较，确定具有最低成本的一种模式，由此执行直接模式的编码。

公开(公告)号：US08483503B2

公开(公告)日：2013-07-09

申请号：US12360180

申请日：2009-01-27

Applicant: Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

Inventor： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

IPC: G06K9/66

CPC classification number: G06T3/403

Abstract: A method and apparatus for generating a thumbnail image are provided so that the out-of-focus (OOF) information can be ascertained from looking at the thumbnail. An input image is decoded, and a degree of the amount of OOF of the decoded image is measured (OOF information). There is a determination as to whether or not there is an EXchangeable Image File (EXIF) information about the input image. In the presence of EXIF information, a thumbnail image is extracted from the EXIF information and as much an OOF effect is applied to the thumbnail image in accordance with the degree of OOF. In the absence of the EXIF information, a thumbnail image is generated by scaling down the decoded image at a down scaler and applying as much of an OOF effect is applied to the thumbnail image in accordance with the degree of OOF.

Abstract translation: 提供了一种用于生成缩略图图像的方法和装置，使得可以从查看缩略图来确定失焦（OOF）信息。 输入图像被解码，并且测量解码图像的OOF量的程度（OOF信息）。 有关于是否存在关于输入图像的可替换图像文件（EXIF）信息的确定。 在存在EXIF信息的情况下，从EXIF信息中提取缩略图，并且根据OOF的程度将OOF效果应用于缩略图图像。 在不存在EXIF信息的情况下，通过缩小缩小缩放器中的解码图像来生成缩略图图像，并且根据OOF的程度应用对缩略图图像应用多少的OOF效果。

公开(公告)号：US20110310969A1

公开(公告)日：2011-12-22

申请号：US13052186

申请日：2011-03-21

Applicant: Young-o PARK ,  Kwan-woong SONG ,  Young-hun JOO ,  Sung-jae KO ,  Hyung-min NAM ,  Jae-yun JUNG

Inventor： Young-o PARK ,  Kwan-woong SONG ,  Young-hun JOO ,  Sung-jae KO ,  Hyung-min NAM ,  Jae-yun JUNG

IPC: H04N7/28 ,  H04N7/32

CPC classification number: H04N19/86 ,  H04N19/152 ,  H04N19/50

Abstract: An image intra prediction method and image intra prediction apparatus and a decoding apparatus and a decoding method using the image intra prediction method are provided. The image intra prediction method includes: backing up boundary pixel values adjacent to a block that is to be decoded; correcting the boundary pixel values adjacent to the block that is to be decoded based on correlations between the boundary pixels and pixels adjacent to the boundary pixels; predicting a block that is to be decoded according to an intra mode, from among a plurality of intra modes, based on the corrected boundary pixel values; and restoring the boundary pixel values from the backed-up values.

Abstract translation: 提供了图像帧内预测方法和图像帧内预测装置以及使用图像帧内预测方法的解码装置和解码方法。 图像帧内预测方法包括：备份与要解码的块相邻的边界像素值; 根据与边界像素相邻的边界像素和像素之间的相关性来校正与要解码的块相邻的边界像素值; 基于校正的边界像素值，从多个帧内模式中预测将根据帧内模式进行解码的块; 并从备份值恢复边界像素值。

公开(公告)号：US20110274161A1

公开(公告)日：2011-11-10

申请号：US13037435

申请日：2011-03-01

Applicant: Young-o PARK ,  Kwan-woong SONG ,  Young-hun JOO ,  Sung-jae KO ,  Hyung-min NAM ,  Jae-yun JUNG

Inventor： Young-o PARK ,  Kwan-woong SONG ,  Young-hun JOO ,  Sung-jae KO ,  Hyung-min NAM ,  Jae-yun JUNG

IPC: H04N7/26

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/156 ,  H04N19/176 ,  H04N19/182 ,  H04N19/513 ,  H04N19/523 ,  H04N19/80 ,  H04N19/86

Abstract: Provided are an image processing apparatus and an image processing method. The image processing method includes: obtaining a reference block a having a first resolution and a differential block having the first resolution; transforming a resolution of a prediction block having the first resolution and a resolution of the differential block having the first resolution in order to generate a prediction block having a second resolution and a differential block having the second resolution, the prediction block having the first resolution and the differential block having the first resolution being generated based on a pixel value of the reference block having the first resolution; and synthesizing the generated prediction block having the second resolution and the generated differential block having the second resolution in order to generate a target block having the second resolution.

Abstract translation: 提供了图像处理装置和图像处理方法。 该图像处理方法包括：获得具有第一分辨率的参考块a和具有第一分辨率的差分块; 变换具有第一分辨率的预测块和具有第一分辨率的差分块的分辨率的分辨率，以便生成具有第二分辨率的预测块和具有第二分辨率的差分块，该预测块具有第一分辨率和 基于具有第一分辨率的参考块的像素值产生具有第一分辨率的差分块; 以及合成所生成的具有第二分辨率的预测块和产生具有第二分辨率的差分块，以便产生具有第二分辨率的目标块。