公开(公告)号：US20050047503A1

公开(公告)日：2005-03-03

申请号：US10925030

申请日：2004-08-25

Applicant: Woo-jin Han ,  Chang-hoon Yim ,  Ho-jin Ha ,  Bae-keun Lee

Inventor： Woo-jin Han ,  Chang-hoon Yim ,  Ho-jin Ha ,  Bae-keun Lee

IPC: H04N7/12 ,  H04N7/24

CPC classification number: H04N19/115 ,  H04N19/10 ,  H04N19/132 ,  H04N19/14 ,  H04N19/147 ,  H04N19/15 ,  H04N19/152 ,  H04N19/177 ,  H04N19/19 ,  H04N19/44 ,  H04N19/61 ,  H04N19/619 ,  H04N19/63 ,  H04N19/86

Abstract: A method and an apparatus for controlling bitrates in an optimal manner by use of information available for use by the pre-decoder, in wavelet-based scalable video coding art using the pre-decoder. A method for controlling bitrates includes the steps of determining the amount of bits for each coding unit relative to a bitstream generated by encoding an original image so as to minimize distortion of the final image from the original image, and extracting a bitstream having the target amount of bits by truncating a part of the generated bitstream based on the determined amount of bits.

Abstract translation: 一种使用预解码器的基于小波的可分级视频编码技术中通过使用可由预解码器使用的信息以最佳方式控制比特率的方法和装置。 用于控制比特率的方法包括以下步骤：相对于通过对原始图像进行编码而生成的比特流来确定每个编码单元的比特量，以使来自原始图像的最终图像的失真最小化，并且提取具有目标量的比特流 通过基于所确定的比特量来截断生成的比特流的一部分。

公开(公告)号：US20050013371A1

公开(公告)日：2005-01-20

申请号：US10892447

申请日：2004-07-16

Applicant: Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

Inventor： Chang-hoon Yim ,  Ho-jin Ha ,  Bac-keun Lee ,  Woo-jin Han

IPC: H04N7/26 ,  H04N7/12

CPC classification number: H04N19/53 ,  H04N19/13 ,  H04N19/61 ,  H04N19/615 ,  H04N19/63

Abstract: An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the group-of-frames into difference frames and first average frames between the frames in a first forward temporal direction and a backward temporal direction, wavelet-decomposing the first difference frames and the first average frames, and quantizing coefficients resulting from the wavelet-decomposition to generate a bitstream. The IWVC method provides improved video coding performance.

Abstract translation: 提供了将平均时间距离（ATD）最小化的帧间小波视频编码（IWVC）方法。 IWVC方法包括：接收一组帧，并将该组帧分解为第一前向和后向方向上的帧之间的差分帧和第一平均帧，小波分解第一差分帧和 第一平均帧和由小波分解产生的量化系数以产生比特流。 IWVC方法提供了改进的视频编码性能。

公开(公告)号：US5872515A

公开(公告)日：1999-02-16

申请号：US814654

申请日：1997-03-11

Applicant: Ho-Jin Ha ,  Kyong-Kyu Lee

Inventor： Ho-Jin Ha ,  Kyong-Kyu Lee

IPC: G06F1/00 ,  G06F1/16 ,  G06F21/00 ,  G08B13/14

CPC classification number: G06F1/1616 ,  G06F1/1677 ,  G06F21/81 ,  G06F21/84 ,  G06F21/88

Abstract: A laptop computer with an alarm function using an LCD on/off switch includes: a microcomputer both for controlling the LCD back-light section on/off operation in response to the on/off state of an LCD on/off switch and for generating an interrupt signal; an alarm processor for determining whether or not the interrupt signal is a burglar alarm signal and outputs an alarm in case of a robbery; and a password determining section for comparing a password entered by a user with a previously set password and interrupting the generation of an alarm only when both passwords are identical. A burglar alarm is sounded when an interrupt occurs so when to indicate a robbery as the LCD on/off switch is turned on against a user's will during the operation of the computer. Also, it can interrupt the alarm by a user inputting a correct password during the generation of the alarm.

Abstract translation: 具有使用LCD开/关开关的报警功能的膝上型计算机包括：微型计算机，用于响应LCD开/关开关的开/关状态来控制LCD背光部分开/关操作，并产生 中断信号; 用于确定所述中断信号是否是防盗报警信号的报警处理器，并且在发生抢劫的情况下输出报警; 以及密码确定部分，用于将用户输入的密码与先前设置的密码进行比较，并且仅当两个密码相同时中断报警器的生成。 发生中断时，会发出防盗报警，以便在计算机运行期间当LCD开/关开关打开时，指示劫机。 此外，它可以在用户生成报警时通过用户输入正确的密码来中断报警。

公开(公告)号：US09277252B2

公开(公告)日：2016-03-01

申请号：US13153523

申请日：2011-06-06

Applicant: Ho-jin Ha ,  O-hoon Kwon ,  Guanhua Zhang ,  Hyung-tak Choi ,  Sun-bal Kim ,  Ji-eun Keum

Inventor： Ho-jin Ha ,  O-hoon Kwon ,  Guanhua Zhang ,  Hyung-tak Choi ,  Sun-bal Kim ,  Ji-eun Keum

IPC: G06F15/16 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/24 ,  H04N21/658 ,  H04N21/81 ,  H04N21/845

CPC classification number: H04N21/23439 ,  H04N21/2353 ,  H04N21/2362 ,  H04N21/2402 ,  H04N21/6581 ,  H04N21/812 ,  H04N21/8456

Abstract: A method and apparatus are provided for performing adaptive streaming according to a streaming environment based on information about a plurality of elements for determining qualities of a plurality of media data with respect to the same content.

Abstract translation: 提供了一种方法和装置，用于根据关于多个元素的信息，根据流媒体环境执行自适应流，用于确定相对于相同内容的多个媒体数据的质量。

公开(公告)号：US08559520B2

公开(公告)日：2013-10-15

申请号：US13235012

申请日：2011-09-16

Applicant: Ho-Jin Ha ,  Sang-Chang Cha ,  Woo-jin Han

Inventor： Ho-Jin Ha ,  Sang-Chang Cha ,  Woo-jin Han

IPC: H04N7/12

CPC classification number: H04N19/53 ,  H04N19/52

Abstract: A motion vector compression apparatus includes: a down-sampling module for down-sampling an original frame to have a size of a frame in each layer; a motion vector search module for obtaining a motion vector in which an error or a cost function is minimized with respect to the down-sampled frame; a reference vector generation module for generating a reference motion vector in a predetermined enhanced layer by means of a block of a lower layer corresponding to a predetermined block in the predetermined enhanced layer, and motion vectors in blocks around the block; and a motion difference module for calculating a difference between the obtained motion vector and the reference motion vector.

Abstract translation: 运动矢量压缩装置包括：下采样模块，用于对原始帧进行下采样以具有每层中的帧的大小; 运动矢量搜索模块，用于获得相对于下采样帧最小化误差或成本函数的运动矢量; 参考矢量生成模块，用于通过与预定增强层中的预定块相对应的下层的块和在块周围的块中的运动矢量来生成预定增强层中的参考运动矢量; 以及用于计算所获得的运动矢量和参考运动矢量之间的差的运动差分模块。

公开(公告)号：US08116578B2

公开(公告)日：2012-02-14

申请号：US13005990

申请日：2011-01-13

Applicant: Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

Inventor： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

IPC: G06K9/46

CPC classification number: H04N19/577 ,  H04N19/31 ,  H04N19/51 ,  H04N19/517

Abstract: A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.

Abstract translation: 提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。 该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于 第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测运动矢量 位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

公开(公告)号：US20110208829A1

公开(公告)日：2011-08-25

申请号：US13033108

申请日：2011-02-23

Applicant: O-hoon KWON ,  Sun-bal KIM ,  Ho-jin HA ,  Guanhua ZHANG ,  Hyung-tak CHOI ,  Ji-Eun KEUM

Inventor： O-hoon KWON ,  Sun-bal KIM ,  Ho-jin HA ,  Guanhua ZHANG ,  Hyung-tak CHOI ,  Ji-Eun KEUM

IPC: G06F15/16

CPC classification number: H04N21/23439 ,  H04N21/234327 ,  H04N21/2353 ,  H04N21/2362 ,  H04N21/2402 ,  H04N21/6581 ,  H04N21/812 ,  H04N21/8455 ,  H04N21/8456

Abstract: A method and apparatus for transmitting and receiving data are provided. In the method of receiving data, at least one of a plurality of media data generated by encoding content to have different qualities is received, the plurality of media data each including at least one segment; location information indicating a randomly accessible point of each of the at least one segment is obtained; and random accessing is provided on the received media data, based on the location information.

Abstract translation: 提供了一种用于发送和接收数据的方法和装置。 在接收数据的方法中，接收通过编码具有不同质量的内容而生成的多个媒体数据中的至少一个，所述多个媒体数据各自包括至少一个片段; 获得指示所述至少一个段中的每一个的随机可访问点的位置信息; 并且基于位置信息在所接收的媒体数据上提供随机访问。

公开(公告)号：US07889793B2

公开(公告)日：2011-02-15

申请号：US11254051

申请日：2005-10-20

Applicant: Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

Inventor： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: H04N19/577 ,  H04N19/31 ,  H04N19/51 ,  H04N19/517

Abstract: A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.

Abstract translation: 提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。 该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于 第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量 位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

公开(公告)号：US20060120450A1

公开(公告)日：2006-06-08

申请号：US11290515

申请日：2005-12-01

Applicant: Woo-jin Han ,  Sang-chang Cha ,  Ho-jin Ha

Inventor： Woo-jin Han ,  Sang-chang Cha ,  Ho-jin Ha

IPC: H04N11/04 ,  H04B1/66 ,  H04N7/12 ,  H04N11/02

CPC classification number: H04N19/59 ,  H04N19/11 ,  H04N19/147 ,  H04N19/15 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61 ,  H04N19/91

Abstract: A video compression method, and more particularly, a prediction method for efficiently eliminating redundancy within a video frame, and a video compression method and an apparatus using the prediction method are provided. There is provided a method for encoding video based on a multi-layer structure, including performing intra-prediction on a current intra-block using images of neighboring intra-blocks of the current intra-block to obtain a prediction residual, performing prediction on the current intra-block using an image of a lower layer region corresponding to the current intra-block to obtain a prediction residual, selecting one of the two prediction residuals that offers higher coding efficiency, and encoding the selected prediction residual.

Abstract translation: 提供一种视频压缩方法，更具体地，提供一种用于有效消除视频帧内的冗余的预测方法以及使用该预测方法的视频压缩方法和装置。 提供了一种用于基于多层结构对视频进行编码的方法，包括使用当前帧内相邻帧内的图像对当前块内进行帧内预测，​​以获得预测残差，对 使用与当前帧内对应的下层区域的图像的当前帧内块来获得预测残差，选择提供更高编码效率的两个预测残差中的一个，并对所选择的预测残差进行编码。

公开(公告)号：US20050157793A1

公开(公告)日：2005-07-21

申请号：US11034734

申请日：2005-01-14

Applicant: Ho-jin Ha ,  Woo-jin Han

Inventor： Ho-jin Ha ,  Woo-jin Han

IPC: H04N7/24 ,  H04N7/12 ,  H04N7/26

CPC classification number: H04N19/615 ,  H04N19/13 ,  H04N19/61 ,  H04N19/63

Abstract: A video encoder/decoder and method. The video coding method includes estimating a virtual frame, electing a reference frame from candidate frames including the virtual frame to remove temporal redundancy using the elected reference frame, coding a motion vector and predetermined information obtained in removing the temporal redundancy, and obtaining transform coefficients from the frames free from the temporal redundancy and quantizing the obtained transform coefficients to generate a bit-stream. The video decoding method includes receiving a bit-stream and parsing the received bit-stream to extract information on coded frames, inversely quantizing the information on the coded frames to obtain the transform coefficients, and performing inverse spatial transform of the obtained transform coefficients and inverse temporal transform by use of a reference frame including a virtual frame in inverse order to an order in which redundancy of the coded frames is removed and restoring the coded frames. As a result, it is possible to code the video at a higher compression rate.

Abstract translation: 视频编码器/解码器和方法。 视频编码方法包括估计虚拟帧，从包括虚拟帧的候选帧中选择参考帧，以使用所选择的参考帧去除时间冗余，对运动矢量进行编码以及在消除时间冗余时获得的预定信息，以及从 帧没有时间冗余并量化所获得的变换系数以产生比特流。 视频解码方法包括接收比特流并解析接收到的比特流以提取关于编码帧的信息，对编码帧的信息进行逆量化以获得变换系数，并对所获得的变换系数进行逆空间变换 通过使用包括虚拟帧的参考帧以与去除编码帧的冗余的顺序相反的顺序进行时间变换并恢复编码帧。 结果，可以以更高的压缩率对视频进行编码。