公开(公告)号：CA2367966A1

公开(公告)日：2001-01-18

申请号：CA2367966

申请日：2000-07-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： YOU KI WON ,  KIM MUNCHURL ,  KIM JIN WOONG ,  RO YONG MAN

IPC: G06T1/00 ,  G06F17/14 ,  G06F17/30 ,  G06K9/52 ,  G06K9/64 ,  G06T7/00 ,  G06T7/40

Abstract: The present invention relates to a texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of Polar coordinate system. The texture description method in the frequency domain comprises: a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the textu re feature values of the image from the respective feature channels; and a thir d step of constituting a texture descriptor of the image in a vector form usin g the texture feature values extracted from the respective feature channels of the frequency layout. According to the present invention, in a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotati on- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

公开(公告)号：KR20070096884A

公开(公告)日：2007-10-02

申请号：KR20070028516

申请日：2007-03-23

Applicant: KOREA ELECTRONICS TELECOMM ,  RES & IND COOPERATION GROUP

Inventor： KANG JUNG WON ,  KIM JAE GON ,  HONG JIN WOO ,  RO YONG MAN ,  BAE TAE MEON ,  THANG TRUONG CONG

IPC: H04N7/32 ,  H04N7/24

CPC classification number: H04N19/34 ,  H04N19/105 ,  H04N19/146 ,  H04N19/187 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23439 ,  H04N21/2662

Abstract: A coding method of reducing interlayer redundancy using mition data of FGS(fine grain scalability) layer and device thereof are provided to extract a bitstream having changed scalability from a bitstream generated by using an FGS layer for interlayer motion prediction. A lower spatial layer of an original image is transformed and quantized(S1410). The motion of an upper spatial layer of the original image is predicted by using motion data of an FGS layer in the transformed and quantized lower spatial layer. The transformed and quantized lower spatial layer and the upper spatial layer are encoded. The motion data of the FGS layer is recovered(S1420). Interlayer motion prediction is performed by removing motion data of the upper spatial layer overlapping with the motion data of the recovered FGS layer(S1450).

Abstract translation: 提供了一种使用FGS（细粒度可伸缩性）层的分数数据降低层间冗余的编码方法及其装置，从通过使用用于层间运动预测的FGS层生成的比特流中提取具有变化的可扩展性的比特流。 原始图像的较低空间层被变换和量化（S1410）。 原始图像的上部空间层的运动通过使用变换和量化的下部空间层中的FGS层的运动数据来预测。 变换和量化的下层空间层和上层空间层被编码。 恢复FGS层的运动数据（S1420）。 通过去除与恢复的FGS层的运动数据重叠的上部空间层的运动数据来执行层间运动预测（S1450）。

公开(公告)号：EP1929781A4

公开(公告)日：2013-01-23

申请号：EP06798877

申请日：2006-09-25

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA ADVANCED INST SCI & TECH

Inventor： KANG JUNG-WON ,  KIM JAE-GON ,  HONG JIN-WOO ,  RO YONG MAN ,  BAE TAE-MEON ,  TRUONG CONG-THANG

IPC: H04N7/24 ,  H04N19/122 ,  H04N19/132 ,  H04N19/136 ,  H04N19/167 ,  H04N19/174 ,  H04N19/33 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/00424 ,  H04N19/132 ,  H04N19/162 ,  H04N19/17 ,  H04N19/187 ,  H04N19/33 ,  H04N19/70 ,  H04N21/235 ,  H04N21/2362 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4621 ,  H04N21/4728

公开(公告)号：EP1183651A4

公开(公告)日：2005-02-23

申请号：EP00942495

申请日：2000-07-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM MUNCHURL ,  KIM JIN WOONG ,  RO YONG MAN ,  YOU KI WON

IPC: G06T1/00 ,  G06F17/14 ,  G06F17/30 ,  G06K9/52 ,  G06K9/64 ,  G06T7/00 ,  G06T7/40 ,  G06T15/00

CPC classification number: G06K9/6203 ,  G06F17/30262 ,  G06K9/522 ,  G06T7/42

Abstract: The present invention relates to a texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of Polar coordinate system. The texture description method in the frequency domain comprises: a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the texture feature values of the image from the respective feature channels; and a third step of constituting a texture descriptor of the image in a vector form using the texture feature values extracted from the respective feature channels of the frequency layout. According to the present invention, in a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotation- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

Abstract translation: 频域中的纹理描述方法和使用其的基于纹理的检索方法，其中将图像信号转换成极坐标系的频域中的图像信号。 频域中的纹理描述方法包括通过将频域划分成一组特征信道来产生频率布局的第一步骤; 从各个特征通道提取图像的纹理特征值的第二步骤; 以及第三步骤，使用从频率布局的各个特征通道提取的纹理特征值，以向量形式构成图像的纹理描述符。 在频域中描述的基于纹理的检索中，提供了一种能够满足相关或全部检索条件的检索方法，如相关纹理图像的缩放，旋转和强度不变检索。 此外，提供了一种计算粗略的纹理方案以提供检索中的浏览功能的检索方法。