公开(公告)号：US08649438B2

公开(公告)日：2014-02-11

申请号：US12951280

申请日：2010-11-22

Applicant: Gwo-Long Li ,  Hsiao-Shan Huang ,  Tian-Sheuan Chang

Inventor： Gwo-Long Li ,  Hsiao-Shan Huang ,  Tian-Sheuan Chang

IPC: H04N7/36

CPC classification number: H04N19/00672 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/433 ,  H04N19/567

Abstract: A selective motion vector prediction method and a motion estimation method and a device thereof applicable to a scalable video coding (SVC) system are disclosed. The selective motion vector prediction method includes the steps of performing an inter prediction to obtain a first motion vector prediction center; performing an inter-layer motion prediction to obtain a second motion vector prediction center; in the case the first and the second motion vector prediction center satisfying a preset condition, using the same reference data to calculate the rate-distortion costs for the inter prediction and the inter-layer motion prediction; and using the rate-distortion costs as a basis to select one of the inter prediction and the inter-layer motion prediction for applying to the SVC system. Thus, the same reference data is shared to enable reduced memory access in the process of coding and accordingly, reduced cost of and power consumption by memory access.

Abstract translation: 公开了可应用于可伸缩视频编码（SVC）系统的选择运动矢量预测方法和运动估计方法及其装置。 选择运动矢量预测方法包括执行帧间预测以获得第一运动矢量预测中心的步骤; 执行层间运动预测以获得第二运动矢量预测中心; 在第一和第二运动矢量预测中心满足预设条件的情况下，使用相同的参考数据来计算帧间预测和层间运动预测的速率失真成本; 并且使用速率失真成本作为选择帧间预测和层间运动预测之一以应用于SVC系统的基础。 因此，相同的参考数据被共享以在编码过程中实现减少的存储器访问，并因此降低存储器访问的成本和功耗。

公开(公告)号：US20060002465A1

公开(公告)日：2006-01-05

申请号：US11173121

申请日：2005-07-01

Applicant: Vijayalakshmi Raveendran ,  Gordon Walker

Inventor： Vijayalakshmi Raveendran ,  Gordon Walker

IPC: H04N11/04

CPC classification number: H04N19/00672 ,  H04N19/109 ,  H04N19/132 ,  H04N19/137 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/31 ,  H04N19/567 ,  H04N19/577 ,  H04N19/587

Abstract: A method for encoding a video stream includes partitioning the video stream into a main layer having a plurality of main layer frames, and an interpolated layer having a plurality of interpolated layer frames; interpolating a frame rate up conversion (FRUC) frame; and encoding the plurality of main layer frames in the interpolated layer with the assistance of the main FRUC frame. A video encoder implementing the method is also described.

公开(公告)号：US08855196B2

公开(公告)日：2014-10-07

申请号：US12863923

申请日：2009-01-21

Applicant: Zhen Li ,  Alexandros Tourapis

Inventor： Zhen Li ,  Alexandros Tourapis

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/15 ,  H04N19/149 ,  H04N19/19 ,  H04N19/147 ,  H04N19/91 ,  H04N19/51 ,  H04N19/567

CPC classification number: H04N19/00672 ,  H04N19/147 ,  H04N19/149 ,  H04N19/15 ,  H04N19/19 ,  H04N19/52 ,  H04N19/567 ,  H04N19/91

Abstract: Adaptive motion information cost estimation is achieved in processing video information. A transmission cost is estimated that is associated with encoding a motion vector difference (mvd) in motion vectors that describe a motion characteristic of the video information. The mvd is encoded based on minimizing a rate estimation mismatch associated with the motion vectors. The encoding step includes computing a bit count associated with the mvd using CABAC. A value is indexed that corresponds to the cost from one or more entries in the lookup table. The cost relates to context or content characteristics associated with the video information. The lookup table is adaptively updated based on a change in the contextual information or content characteristics. The value is dynamically adjustable based on the change.

Abstract translation: 在处理视频信息时实现自适应运动信息成本估计。 估计与描述视频信息的运动特性的运动矢量中的运动矢量差（mvd）编码有关的传输成本。 基于最小化与运动矢量相关联的速率估计失配来编码mvd。 编码步骤包括使用CABAC计算与mvd相关联的位计数。 索引值对应于查找表中的一个或多个条目的成本。 成本涉及与视频信息相关联的上下文或内容特征。 基于上下文信息或内容特征的变化来自适应地更新查找表。 该值可根据变化动态调整。

公开(公告)号：US20110243231A1

公开(公告)日：2011-10-06

申请号：US12951280

申请日：2010-11-22

Applicant: GWO-LONG LI ,  HSIAO-SHAN HUANG ,  TIAN-SHEUAN CHANG

Inventor： GWO-LONG LI ,  HSIAO-SHAN HUANG ,  TIAN-SHEUAN CHANG

IPC: H04N11/02

CPC classification number: H04N19/00672 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/187 ,  H04N19/433 ,  H04N19/567

Abstract: A selective motion vector prediction method and a motion estimation method and a device thereof applicable to a scalable video coding (SVC) system are disclosed. The selective motion vector prediction method includes the steps of performing an inter prediction to obtain a first motion vector prediction center; performing an inter-layer motion prediction to obtain a second motion vector prediction center; in the case the first and the second motion vector prediction center satisfying a preset condition, using the same reference data to calculate the rate-distortion costs for the inter prediction and the inter-layer motion prediction; and using the rate-distortion costs as a basis to select one of the inter prediction and the inter-layer motion prediction for applying to the SVC system. Thus, the same reference data is shared to enable reduced memory access in the process of coding and accordingly, reduced cost of and power consumption by memory access.

Abstract translation: 公开了可应用于可伸缩视频编码（SVC）系统的选择运动矢量预测方法和运动估计方法及其装置。 选择运动矢量预测方法包括执行帧间预测以获得第一运动矢量预测中心的步骤; 执行层间运动预测以获得第二运动矢量预测中心; 在第一和第二运动矢量预测中心满足预设条件的情况下，使用相同的参考数据来计算帧间预测和层间运动预测的速率失真成本; 并且使用速率失真成本作为选择帧间预测和层间运动预测之一以应用于SVC系统的基础。 因此，相同的参考数据被共享以在编码过程中实现减少的存储器访问，并因此降低存储器访问的成本和功耗。

公开(公告)号：US08948262B2

公开(公告)日：2015-02-03

申请号：US11173121

申请日：2005-07-01

Applicant: Vijayalakshmi R. Raveendran ,  Gordon Kent Walker

Inventor： Vijayalakshmi R. Raveendran ,  Gordon Kent Walker

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04H60/33 ,  H04N19/567 ,  H04N19/31 ,  H04N19/132 ,  H04N19/19 ,  H04N19/137 ,  H04N19/176 ,  H04N19/147 ,  H04N19/109 ,  H04N19/577 ,  H04N19/587

CPC classification number: H04N19/00672 ,  H04N19/109 ,  H04N19/132 ,  H04N19/137 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/31 ,  H04N19/567 ,  H04N19/577 ,  H04N19/587

Abstract: A method for encoding a video stream includes partitioning the video stream into a main layer having a plurality of main layer frames, and an interpolated layer having a plurality of interpolated layer frames; interpolating a frame rate up conversion (FRUC) frame; and encoding the plurality of main layer frames in the interpolated layer with the assistance of the main FRUC frame. A video encoder implementing the method is also described.

Abstract translation: 一种用于编码视频流的方法包括将视频流划分成具有多个主层帧的主层，以及具有多个内插层帧的内插层; 内插帧速率转换（FRUC）帧; 并且在主FRUC帧的辅助下对内插层中的多个主层帧进行编码。 还描述了实现该方法的视频编码器。

公开(公告)号：US20100316118A1

公开(公告)日：2010-12-16

申请号：US12863923

申请日：2009-01-21

Applicant: Zhen Li ,  Alexandros Tourapis

Inventor： Zhen Li ,  Alexandros Tourapis

IPC: H04N7/26 ,  H04N7/50

CPC classification number: H04N19/00672 ,  H04N19/147 ,  H04N19/149 ,  H04N19/15 ,  H04N19/19 ,  H04N19/52 ,  H04N19/567 ,  H04N19/91

Abstract: Adaptive motion information cost estimation is achieved in processing video information. A transmission cost is estimated that is associated with encoding a motion vector difference (mvd) in motion vectors that describe a motion characteristic of the video information. The mvd is encoded based on minimizing a rate estimation mismatch associated with the motion vectors. The encoding step includes computing a bit count associated with the mvd using CABAC. A value is indexed that corresponds to the cost from one or more entries in the lookup table. The cost relates to context or content characteristics associated with the video information. The lookup table is adaptively updated based on a change in the contextual information or content characteristics. The value is dynamically adjustable based on the change.

Abstract translation: 在处理视频信息时实现自适应运动信息成本估计。 估计与描述视频信息的运动特性的运动矢量中的运动矢量差（mvd）编码有关的传输成本。 基于最小化与运动矢量相关联的速率估计失配来编码mvd。 编码步骤包括使用CABAC计算与mvd相关联的位计数。 索引值对应于查找表中的一个或多个条目的成本。 成本涉及与视频信息相关联的上下文或内容特征。 基于上下文信息或内容特征的变化来自适应地更新查找表。 该值可根据变化动态调整。