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1. 发明申请

US20110150096A1 LOCAL CONSTRAINTS FOR MOTION MATCHING 审中-公开
标题翻译：本地运动匹配约束
公开(公告)号：US20110150096A1
公开(公告)日：2011-06-23
申请号：US13036347
申请日：2011-02-28
申请人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
发明人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
IPC分类号： H04N7/32
CPC分类号： H04N19/543
摘要： A method and apparatus for estimating the motion of an image region (the “center” region) from a source video frame to a target video frame. The motion estimation is locally constrained in that the estimated motion of the “center region” is affected by the estimated motion of neighboring regions. Advantageously, this may reduce common motion matching problems such as false and ambiguous matches. In one embodiment, the locally-constrained motion estimation may be implemented by biasing an error map of the center region using error maps of the neighboring regions.
摘要翻译：一种用于估计从源视频帧到目标视频帧的图像区域（“中心”区域）的运动的方法和装置。运动估计是局部约束的，因为“中心区域”的估计运动受相邻区域的估计运动的影响。有利地，这可以减少常见的运动匹配问题，例如虚假和不明确的匹配。在一个实施例中，可以通过使用相邻区域的误差图偏移中心区域的误差图来实现局部约束的运动估计。

2. 发明授权

US06690823B2 Method and apparatus for partitioning an arbitrarily-shaped area 有权
标题翻译：用于划分任意形状区域的方法和装置
公开(公告)号：US06690823B2
公开(公告)日：2004-02-10
申请号：US10062574
申请日：2002-01-31
申请人： Gary R. Holt , Edward Ratner , David B. Kita
发明人： Gary R. Holt , Edward Ratner , David B. Kita
IPC分类号： G06T760
CPC分类号： G06T7/155 , G06T7/12 , G06T2207/10016 , G06T2207/20044
摘要： In accordance with one embodiment, a processing method and apparatus is provided for partitioning exposed areas created by motion compensation. The partitioning creates sub-areas in shapes and sizes that may be effectively dealt with and efficiently compressed. The partitioning may divide an arbitrarily shaped area by “pinching,” “slicing,” and/or “cleaving” the area into manageable sub-areas. In accordance with another embodiment, a method and apparatus is provided for processing points in a bounded area to locate a medial axis. In accordance with another embodiment, an electronically-implemented method and apparatus is provided for processing a bounded two-dimensional area in an array of points to determine, for each point inside the area, a nearest boundary point outside the area as measured by a Euclidean distance.
摘要翻译：根据一个实施例，提供了一种用于分割由运动补偿产生的暴露区域的处理方法和装置。分区创建可以有效处理和有效压缩的形状和大小的子区域。划分可以通过“捏合”，“切片”和/或“分割”该区域到可管理的子区域来划分任意形状的区域。根据另一个实施例，提供了一种用于处理有界区域中的点以定位中间轴线的方法和装置。根据另一个实施例，提供了一种电子实现的方法和装置，用于处理点阵列中的有界二维区域，以确定区域内的每个点在欧几里得测量的区域外的最近边界点距离。

3. 发明授权

US07636482B1 Efficient use of keyframes in video compression 失效
标题翻译：在视频压缩中有效利用关键帧
公开(公告)号：US07636482B1
公开(公告)日：2009-12-22
申请号：US12179158
申请日：2008-07-24
申请人： David B. Kita , Tser-Yuan Brian Yang , Dylan SeLegue
发明人： David B. Kita , Tser-Yuan Brian Yang , Dylan SeLegue
IPC分类号： G06K9/46
CPC分类号： H04N19/577 , H04N19/115 , H04N19/159 , H04N19/172 , H04N19/61
摘要： One embodiment disclosed relates to a method for encoding and decoding a video sequence in which a keyframe is used to bi-directionally predict frames in the sequence. The keyframe is coded independently of other frames in the sequence. Both a prior frame occurring before the keyframe and a subsequent frame occurring after the keyframe are predicted using data from the keyframe. Another embodiment disclosed relates to a method for allocating bits to a keyframe during video encoding. Effects of a plurality of keyframe bit allocations on quality of a predicted frame are measured. Said effects are used to determine a near optimal keyframe bit allocation.
摘要翻译：公开的一个实施例涉及用于对视频序列进行编码和解码的方法，其中使用关键帧来双向地预测序列中的帧。关键帧独立于序列中的其他帧进行编码。在关键帧之前发生的先前帧和在关键帧之后发生的后续帧都是使用来自关键帧的数据预测的。所公开的另一实施例涉及在视频编码期间将比特分配给关键帧的方法。测量多个关键帧比特分配对预测帧的质量的影响。所述效果用于确定近似最优的关键帧比特分配。

4. 发明授权

US07426306B1 Efficient use of keyframes in video compression 有权
标题翻译：在视频压缩中有效利用关键帧
公开(公告)号：US07426306B1
公开(公告)日：2008-09-16
申请号：US10692286
申请日：2003-10-23
申请人： David B. Kita , Tser-Yuan Brian Yang , Dylan SeLegue
发明人： David B. Kita , Tser-Yuan Brian Yang , Dylan SeLegue
IPC分类号： G06K9/36
CPC分类号： H04N19/577 , H04N19/115 , H04N19/159 , H04N19/172 , H04N19/61
摘要： One embodiment disclosed relates to a method for encoding and decoding a video sequence in which a keyframe is used to bi-directionally predict frames in the sequence. The keyframe is coded independently of other frames in the sequence. Both a prior frame occurring before the keyframe and a subsequent frame occurring after the keyframe are predicted using data from the keyframe. Another embodiment disclosed relates to a method for allocating bits to a keyframe during video encoding. Effects of a plurality of keyframe bit allocations on quality of a predicted frame are measured. Said effects are used to determine a near optimal keyframe bit allocation.
摘要翻译：公开的一个实施例涉及用于对视频序列进行编码和解码的方法，其中使用关键帧来双向地预测序列中的帧。关键帧独立于序列中的其他帧进行编码。在关键帧之前发生的先前帧和在关键帧之后发生的后续帧都是使用来自关键帧的数据预测的。所公开的另一实施例涉及在视频编码期间将比特分配给关键帧的方法。测量多个关键帧比特分配对预测帧的质量的影响。所述效果用于确定近似最优的关键帧比特分配。

5. 发明授权

US06985527B2 Local constraints for motion matching 失效
公开(公告)号：US06985527B2
公开(公告)日：2006-01-10
申请号：US10093072
申请日：2002-03-07
申请人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
发明人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
IPC分类号： H04N7/18
CPC分类号： H04N19/543
摘要： A method and apparatus for estimating the motion of an image region (the “center” region) from a source video frame to a target video frame. The motion estimation is locally constrained in that the estimated motion of the “center region” is affected by the estimated motion of neighboring regions. Advantageously, this may reduce common motion matching problems such as false and ambiguous matches. In one embodiment, the locally-constrained motion estimation may be implemented by biasing an error map of the center region using error maps of the neighboring regions.

6. 发明授权

US06909749B2 Hierarchical segment-based motion vector encoding and decoding 有权
标题翻译：基于分段的运动矢量编码和解码
公开(公告)号：US06909749B2
公开(公告)日：2005-06-21
申请号：US10196739
申请日：2002-07-15
申请人： Tser-Yuan Brian Yang , Edward R. Ratner , Adityo Prakash , David B. Kita
发明人： Tser-Yuan Brian Yang , Edward R. Ratner , Adityo Prakash , David B. Kita
IPC分类号： H04N7/26 , H04N7/36 , H04N7/12
CPC分类号： H04N19/537 , H04N19/52
摘要： In a method and apparatus for predicting and coding motion vectors in a video compression scheme, an ordered list of segments for a reference frame is used to create a hierarchy of segments with a plurality of levels. Motion vectors for segments in the top level are entropy coded, and these vectors are used to predict vectors for segments at the next level. Residual vectors are entropy coded to correct these predictions, and the process of prediction from above and coding residuals continues recursively down through the hierarchy of segment levels. Information about the previous motion of segments may be exploited in the prediction process. In a complementary method and apparatus for decoding motion vectors, the same segment hierarchy is used to predict motion vectors by the same method used during encoding, and these predicted vectors are added to residual motion vectors to reconstruct the actual motion vectors.
摘要翻译：在用于在视频压缩方案中预测和编码运动矢量的方法和装置中，使用用于参考帧的片段的有序列表来创建具有多个级别的片段的层级。顶层的段的运动矢量被熵编码，并且这些向量用于预测下一级段的向量。残差向量被熵编码以校正这些预测，并且来自上述的预测过程和编码残差在分段级别的层次上递归地下降。关于段的先前动作的信息可以在预测过程中被利用。在用于解码运动矢量的补充方法和装置中，使用相同的分段层级来通过编码期间使用的相同方法来预测运动矢量，并将这些预测向量加到残余运动矢量上以重构实际的运动矢量。

7. 发明授权

US09667991B2 Local constraints for motion matching 有权
公开(公告)号：US09667991B2
公开(公告)日：2017-05-30
申请号：US13036347
申请日：2011-02-28
申请人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
发明人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
IPC分类号： H04N7/18 , H04N19/543
CPC分类号： H04N19/543
摘要： A method and apparatus for estimating the motion of an image region (the “center” region) from a source video frame to a target video frame. The motion estimation is locally constrained in that the estimated motion of the “center region” is affected by the estimated motion of neighboring regions. Advantageously, this may reduce common motion matching problems such as false and ambiguous matches. In one embodiment, the locally-constrained motion estimation may be implemented by biasing an error map of the center region using error maps of the neighboring regions.

8. 发明授权

US07899118B2 Local constraints for motion matching 有权
标题翻译：运动匹配的局部约束
公开(公告)号：US07899118B2
公开(公告)日：2011-03-01
申请号：US11213334
申请日：2005-08-26
申请人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
发明人： Michial Gunter , David B. Kita , Oliver W. Shih , Carroll Philip Gossett
IPC分类号： H04N7/18
CPC分类号： H04N19/543
摘要： A method and apparatus for estimating the motion of an image region (the “center” region) from a source video frame to a target video frame. The motion estimation is locally constrained in that the estimated motion of the “center region” is affected by the estimated motion of neighboring regions. Advantageously, this may reduce common motion matching problems such as false and ambiguous matches. In one embodiment, the locally-constrained motion estimation may be implemented by biasing an error map of the center region using error maps of the neighboring regions.
摘要翻译：一种用于估计从源视频帧到目标视频帧的图像区域（“中心”区域）的运动的方法和装置。运动估计是局部约束的，因为“中心区域”的估计运动受相邻区域的估计运动的影响。有利地，这可以减少常见的运动匹配问题，例如虚假和不明确的匹配。在一个实施例中，可以通过使用相邻区域的误差图偏移中心区域的误差图来实现局部约束的运动估计。

9. 发明授权

US07099513B2 Bit allocation process for multi-stage image compression 有权
公开(公告)号：US07099513B2
公开(公告)日：2006-08-29
申请号：US10175510
申请日：2002-06-18
申请人： Schuyler Cullen , Edward R. Ratner , Rasmus Larsen , David B. Kita
发明人： Schuyler Cullen , Edward R. Ratner , Rasmus Larsen , David B. Kita
IPC分类号： G06K9/36
CPC分类号： G06T9/005 , H04N19/147 , H04N19/61 , H04N19/63
摘要： A process and apparatus for allocating bits between the stages of a multi-stage digital image compression scheme with quantizer feedback is disclosed. The process selects a quantization schedule (from a finite number of possibilities) for all stages that minimizes an estimate of total distortion while keeping total bit demand below a constraint; uses said schedule to actually quantize one stage of the compression scheme; selects a new quantization schedule for the remaining stages using estimates for distortion and bit demand that are updated to reflect the quantization of the previous stage; actually quantizes the next stage according to the new quantization schedule; and continues recursively until it has chosen an actual quantization scale for every stage of the compression scheme.

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