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公开(公告)号：KR101378899B1
公开(公告)日：2014-03-28
申请号：KR1020130055776
申请日：2013-05-16
Applicant: 한국전자통신연구원
IPC: H04N7/24
Abstract: 적응적 비트 심도 감소를 통한 부호화와 복호화 방법 및 그 장치가 제공된다. 입력 신호의 비트 심도(bit depth)를 감소시킬 것인지 판단하는 비트 심도 조정부, 상기 비트 심도를 감소시킬 것으로 판단한 경우, 상기 입력 신호의 비트 심도를 감소시키는 비트 심도 감소부, 상기 입력 신호를 양자화하는 비트 심도 양자화부, 및 상기 입력 신호의 비트 심도를 증가시키는 비트 심도 증가부를 포함하는 부호화 장치가 개시된다.
Abstract translation: 提供了一种通过自适应比特深度缩减进行编码和解码的方法和装置。 用于确定是否减小输入信号的比特深度的比特深度调整单元，用于当确定减小比特深度时减小输入信号的比特深度的比特深度减小单元， 深度量化单元和用于增加输入信号的比特深度的比特深度增加单元。
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公开(公告)号：KR1020140017010A
公开(公告)日：2014-02-10
申请号：KR1020140006527
申请日：2014-01-20
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N19/57
CPC classification number: H04N19/00587 , H04N19/46 , H04N19/463 , H04N19/52 , H04N19/56 , H04N19/61 , H04N19/70
Abstract: The present invention relates to a method and an apparatus for encoding and decoding video information. The method for encoding video information according to the present invention comprises the steps of: performing a prediction on a current block; and entropy-encoding the predicted information and transmitting the encoded information. The step of performing a prediction includes the steps of: acquiring motion information on a neighboring block from the neighboring block of the current block; and determining motion information on the current block based on the acquired motion information. In the step of transmitting the encoded information, information required for the prediction of the current block can be also transmitted. According to the present invention, the complexity of video compression can be lowered and the quantity of transmitted information can be reduced. [Reference numerals] (S310) Acquire motion information on a neighboring block; (S320) Determine the number of motion information candidates and the possibility of merging motion information
Abstract translation: 本发明涉及用于对视频信息进行编码和解码的方法和装置。 根据本发明的用于编码视频信息的方法包括以下步骤：对当前块执行预测; 对所述预测信息进行熵编码，并发送所述编码信息。 执行预测的步骤包括以下步骤：从当前块的相邻块获取关于相邻块的运动信息; 以及基于所获取的运动信息来确定关于当前块的运动信息。 在发送编码信息的步骤中，也可以发送预测当前块所需的信息。 根据本发明，可以降低视频压缩的复杂度，并且可以减少发送的信息量。 （参考号）（S310）获取相邻块的运动信息; （S320）确定运动信息候选的数量和合并运动信息的可能性
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公开(公告)号：KR1020140009955A
公开(公告)日：2014-01-23
申请号：KR1020130157351
申请日：2013-12-17
Applicant: 한국전자통신연구원
IPC: H04N19/59
CPC classification number: H04N19/52 , H04N19/172 , H04N19/176 , H04N19/513
Abstract: The present invention provides a recording medium for recording a program capable of being executed by a computer for image decoding according to the present invention, wherein the program executes: estimating the motion vector of the current block using one or more among information on the motion vector included in an adjacent block of the current block, information on the motion vector included in the reference block in a reference picture corresponding to the current block, and information on the motion vector included in the adjacent block of the reference block corresponding to the current block in the reference picture; scaling the information on the motion vector included in the adjacent block of the current block using one or more from information on distance from the reference picture to the current picture referred to by the adjacent block of the current block and information on distance from the reference picture of the current block to the current picture if the reference picture referred to by the adjacent block of the current block is different from the reference picture of the current block; and calculating the motion vector of the current block by adding the estimated motion vector based on difference information on the motion vector of the current block. [Reference numerals] (100) Motion vector estimation part; (101) First estimation part; (102) Second estimation part; (201) First difference determination part; (202) Second difference determination part
Abstract translation: 本发明提供了一种用于记录能够由计算机执行的程序的记录介质，用于根据本发明的图像解码，其中程序执行：使用关于运动矢量的信息中的一个或多个来估计当前块的运动矢量 包括在当前块的相邻块中的信息，包括在与当前块相对应的参考图中的参考块中的运动矢量的信息，以及关于与当前块相对应的参考块的相邻块中的运动矢量的信息 参考图片; 使用来自参考图像的距离的信息中的一个或多个关于当前块的相邻块中的运动矢量的信息缩放到当前块的相邻块所参考的当前图片以及关于距参考图片的距离的信息 如果当前块的相邻块所参考的参考图像不同于当前块的参考图像，则将当前块的当前块映射到当前图像; 以及通过基于关于当前块的运动矢量的差异信息添加所估计的运动矢量来计算当前块的运动矢量。 （附图标记）（100）运动矢量估计部; （101）第一估计部分; （102）第二估计部分; （201）第一差分确定部分; （202）第二差分确定部分
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公开(公告)号：KR1020130104002A
公开(公告)日：2013-09-25
申请号：KR1020120025094
申请日：2012-03-12
Applicant: 한국전자통신연구원
CPC classification number: H04N19/597 , H04N19/124 , H04N19/176
Abstract: PURPOSE: A three-dimensional video encoding/decoding method and an apparatus thereof are provided to enable an encoder to adaptively determine the quantization parameter by using the disparity information and/or depth information and are provided to differentially apply the bit rate by the interest area level of each block within a frame, thereby providing the excellent quality of three-dimensional video in the same encoding rate. CONSTITUTION: An encoder assigns a target bit amount about an encoding object frame (S110). The encoder draws the quantization parameters about an encoding object block within the encoding object frame, by controlling the bit rate on block unit based on the assigned target bit amount (S120). Based on the disparity information or the depth information about the encoding object frame, the encoder controls the drawn quantization parameters and draws the final quantization parameter about the encoding object block (S130). [Reference numerals] (S110) Assign a target bit amount; (S120) Control a bit rate; (S130) Control quantization parameters
Abstract translation: 目的：提供一种三维视频编码/解码方法及其装置，使得编码器能够通过使用视差信息和/或深度信息来自适应地确定量化参数，并且被提供以差分地将比特率应用于兴趣区域 级别，从而以相同的编码速率提供优质的三维视频。 构成：编码器分配关于编码对象框架的目标位数（S110）。 编码器通过基于所分配的目标比特量来控制块单元上的比特率来绘制关于编码对象帧内的编码对象块的量化参数（S120）。 基于视差信息或关于编码对象帧的深度信息，编码器控制绘制的量化参数并绘制关于编码对象块的最终量化参数（S130）。 （S110）分配目标比特量; （S120）控制比特率; （S130）控制量化参数
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公开(公告)号：KR1020130092524A
公开(公告)日：2013-08-20
申请号：KR1020130078944
申请日：2013-07-05
Applicant: 한국전자통신연구원
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: PURPOSE: An adaptable image encoding method and a recording medium which is legible with a computer are provided to improve image compression performance by adaptively selecting an encoding parameter of an encoding subject block. CONSTITUTION: A reference block for the encoding of a current block is determined by an encoder (S110). The encoder determines an encoding parameter of the reference block (S120). The encoder applies the motion information of the reference block to the current block so that the current block is encoded (S140). The encoder determines the property of the reference block based on the encoding parameter of the reference block (S130). [Reference numerals] (AA) Start; (BB) Finish; (S110) Determine a reference block; (S120) Determine an encoding parameter of a reference block; (S130) Determine the property of a reference block; (S140) Encoding the reference block which is an encoding subject
Abstract translation: 目的：通过自适应地选择编码对象块的编码参数，提供与计算机可读的适应性图像编码方法和记录介质，以提高图像压缩性能。 构成：用于编码当前块的参考块由编码器确定（S110）。 编码器确定参考块的编码参数（S120）。 编码器将参考块的运动信息应用于当前块，使得当前块被编码（S140）。 编码器基于参考块的编码参数确定参考块的属性（S130）。 （附图标记）（AA）开始; （BB）完成; （S110）确定参考块; （S120）确定参考块的编码参数; （S130）确定参考块的属性; （S140）编码作为编码对象的参照块
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Patent Agency Ranking
公开(公告)号：KR1020130090857A
公开(公告)日：2013-08-14
申请号：KR1020130075085
申请日：2013-06-28
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/103 , H04N19/159 , H04N19/176 , H04N19/50
Abstract: PURPOSE: An image encoding method using a prediction mode and a computer-readable recording medium thereof are provided to improve encoding efficiency by improving the accuracy of prediction by reducing a difference between an encoding target pixel value and a reference pixel value. CONSTITUTION: An encoder applies a vertical prediction mode to a first sub block (311) included in a macro block (310). The encoder applies the vertical prediction mode to a second sub block (320) included in the macro block. The encoder applies the vertical prediction mode to a third sub block (330) and a fourth sub block (340). Each line (331-334,341-344) is encoded by referring to a vertical direction.
Abstract translation: 目的：提供一种使用预测模式的图像编码方法及其计算机可读记录介质，以通过减小编码对象像素值和参考像素值之间的差异来提高预测精度来提高编码效率。 构成：编码器对包括在宏块（310）中的第一子块（311）应用垂直预测模式。 编码器将垂直预测模式应用于包括在宏块中的第二子块（320）。 编码器将垂直预测模式应用于第三子块（330）和第四子块（340）。 每行（331-334,341-344）通过参照垂直方向进行编码。
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公开(公告)号：KR1020130090856A
公开(公告)日：2013-08-14
申请号：KR1020130075084
申请日：2013-06-28
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 경희대학교 산학협력단
IPC: H04N19/50
CPC classification number: H04N19/593 , H04N19/11 , H04N19/119 , H04N19/176
Abstract: PURPOSE: An image encoding device using a prediction mode is provided to reduce the capacity of an encoded image by efficiently encoding an image. CONSTITUTION: An intra estimating unit (213) performs the intra prediction of a first block, performs the intra prediction of a second block adjacent to the first block, performs the intra prediction of a third block adjacent to the bottom of the first block, and performs the intra prediction of a fourth block adjacent to the bottom right of the first block. The first, the second, the third, and the fourth blocks are predicted in one intra prediction mode. [Reference numerals] (202) Movement compensation unit; (210) Movement estimating unit; (211) Intra estimation selecting unit; (212) Unidirectional estimation selecting unit; (213) Intra estimating unit; (214) Image block information confirming unit; (215) Image block information analyzing unit; (216) Unidirectional estimation mode flag transmitting unit; (244) Filter; (253) Re-aligning unit; (254) Entropy encoder; (AA) F_m (present frame); (BB) F'_m-1 (reference frame); (CC) F'_m (restoration frame)
Abstract translation: 目的：提供使用预测模式的图像编码装置，以通过有效地编码图像来减小编码图像的容量。 构成：内部估计单元（213）对第一块进行帧内预测，对与第一块相邻的第二块进行帧内预测，对与第一块的底部相邻的第三块进行帧内预测， 执行与第一块的右下方相邻的第四块的帧内预测。 在一个帧内预测模式中预测第一，第二，第三和第四块。 （附图标记）（202）运动补偿单元; （210）运动估计单元; （211）内部估计选择单元; （212）单向估计选择单元; （213）内部估计单位; （214）图像块信息确认单元; （215）图像块信息分析单元; （216）单向估计模式标志发送单元; （244）过滤器; （253）重新对准单元; （254）熵编码器; （AA）F_m（当前帧）; （BB）F'_m-1（参考帧）; （CC）F'_m（恢复帧）
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公开(公告)号：KR1020130082133A
公开(公告)日：2013-07-18
申请号：KR1020130077397
申请日：2013-07-02
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/184 , H04N19/124 , H04N19/174 , H04N19/176
Abstract: PURPOSE: A recording medium readable with computer recorded thereon a program for executing a decoding method through increasing bit depth capable of reducing system complexity reduces bit depth of each brightness and color component in encoding of a video, adoptively selects and performs the reduction of the bit depth in macro block unit or slice, and thus increases encoding efficiency. CONSTITUTION: A decoding device determines if bit depth of an input signal was reduced (S710). In case the bit depth of the input signal is reduced than bit depth of an original signal, the decoding device increases the bit depth of the input signal (S720). The decoding device uses the input signal with the increased bit depth and restores the image. [Reference numerals] (AA) Start; (BB) No; (CC) Yes; (DD) End; (S710) Is the bit depth of an input signal is reduced?; (S720) Increase the bit depth of the input signal
Abstract translation: 目的：记录有记录在其上的计算机的记录介质，用于通过增加能够降低系统复杂度的比特深度来执行解码方法的程序降低了视频编码中每个亮度和颜色分量的比特深度，过度地选择和执行比特的减少 深度在宏块单元或切片中，从而增加编码效率。 构成：解码装置确定输入信号的位深度是否减小（S710）。 在输入信号的比特深度比原始信号的比特深度减小的情况下，解码装置增加输入信号的比特深度（S720）。 解码装置使用具有增加的比特深度的输入信号并恢复图像。 （附图标记）（AA）开始; （BB）否 （CC）是; （DD）结束; （S710）输入信号的位深度是否减小？ （S720）增加输入信号的位深度
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公开(公告)号：KR1020130070620A
公开(公告)日：2013-06-27
申请号：KR1020130056596
申请日：2013-05-20
Applicant: 한국전자통신연구원
IPC: H04N19/105 , H04N19/137 , H04N19/11
CPC classification number: H04N19/50 , H04N19/11 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
Abstract: PURPOSE: A device for encoding an intra-image based on reference block waveform information and a decoding device thereof are provided to encode a specific pixel with excellent image quality by using the same amount of bits. CONSTITUTION: A waveform information generation unit(220) selects a plurality of reference pixels among pixels which are adjacent to an object image block and generates waveform information of a reference image block based on a difference between the selected reference pixels. An encoder(230) encodes an image included in the object image block based on the waveform information of the reference image block. [Reference numerals] (210) Input image division unit; (220) Waveform information generation unit; (230) Encoder
Abstract translation: 目的：提供一种基于参考块波形信息对图像内编码的装置及其解码装置，以通过使用相同的比特量对具有优异图像质量的特定像素进行编码。 构成：波形信息生成单元（220）根据所选择的参照像素之间的差选择与对象图像块相邻的像素之中的多个参考像素，生成参照图像块的波形信息。 编码器（230）基于参考图像块的波形信息对包含在对象图像块中的图像进行编码。 （附图标记）（210）输入图像分割单元; （220）波形信息生成单元; （230）编码器
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公开(公告)号：KR101234008B1
公开(公告)日：2013-02-18
申请号：KR1020100127500
申请日：2010-12-14
Applicant: 한국전자통신연구원
IPC: H04N19/105 , H04N19/174
CPC classification number: H04N19/105 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: 영상 부호화 방법 및 장치가 제공된다. 슬라이스 내의 블록에 대한 영상 부호화를 수행하는 경우, 슬라이스의 복원된 블록 중 적어도 하나의 블록이 참조 블록으로 결정된다. 그러면, 상기 참조 블록의 부호화 파라미터가 판별되고, 상기 부호화 파라미터에 기반하여 부호화 대상 블록이 적응적으로 부호화된다.
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