专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07804897B1 Method for implementing an improved quantizer in a multimedia compression and encoding system 有权
标题翻译：在多媒体压缩和编码系统中实现改进的量化器的方法
公开(公告)号：US07804897B1
公开(公告)日：2010-09-28
申请号：US10716265
申请日：2003-11-17
申请人： Thomas Pun , Xiaochun Nie , Hsi-Jung Wu
发明人： Thomas Pun , Xiaochun Nie , Hsi-Jung Wu
IPC分类号： H04N7/26 , H04N7/46
CPC分类号： H04N19/152 , H04N19/124 , H04N19/15 , H04N19/172 , H04N19/176 , H04N19/61
摘要： Some embodiments limit the changes to a buffer occupancy accumulator with respect to a target number of bits of the current frame. Limiting the change of the buffer occupancy accumulator will prevent one odd significantly different frame from significantly changing the quantization. Some embodiments improve upon the quantizer adjustment by making more accurate estimates of the amount of information needed to encode each macroblock. Specifically, some embodiments estimate the bits per macroblock in a manner that varies from frame type to frame type. Specifically, for frame types with motion compensation, some embodiments exploit the correlation between the complexity of the macroblock and the number of bits needed. In the case of frame types without motion compensation, some embodiments impose a model that biases bit allocation towards smaller activity macro blocks.
摘要翻译：一些实施例相对于当前帧的目标位数限制对缓冲器占用累加器的改变。限制缓冲占用累加器的变化将阻止一个奇怪的显着不同的帧显着改变量化。一些实施例通过对编码每个宏块所需的信息量进行更准确的估计来改进量化器调整。具体地，一些实施例以从帧类型到帧类型变化的方式估计每个宏块的比特。具体来说，对于具有运动补偿的帧类型，一些实施例利用了宏块的复杂度和所需位数之间的相关性。在没有运动补偿的帧类型的情况下，一些实施例施加将比特分配偏向较小的活动宏块的模型。

32. 发明申请

US20050175092A1 H.264/AVC coder incorporating rate and quality controller 有权
标题翻译： H.264 / AVC编码器并入速率和质量控制器
公开(公告)号：US20050175092A1
公开(公告)日：2005-08-11
申请号：US10811983
申请日：2004-03-30
申请人： Atul Puri , Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie
发明人： Atul Puri , Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie
IPC分类号： H04N7/12 , H04N7/26 , H04N7/50
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/196 , H04N19/61 , H04N19/82
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

33. 发明授权

US07986731B2 H.264/AVC coder incorporating rate and quality controller 有权
标题翻译： H.264 / AVC编码器并入速率和质量控制器
公开(公告)号：US07986731B2
公开(公告)日：2011-07-26
申请号：US10811983
申请日：2004-03-30
申请人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
发明人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
IPC分类号： H04N7/12
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/196 , H04N19/61 , H04N19/82
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

34. 发明申请

US20050175093A1 Target bitrate estimator, picture activity and buffer management in rate control for video coder 失效
标题翻译：视频编码器速率控制中的目标比特率估计器，图像活动和缓冲器管理
公开(公告)号：US20050175093A1
公开(公告)日：2005-08-11
申请号：US10812062
申请日：2004-03-30
申请人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
发明人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
IPC分类号： H04N7/12
CPC分类号： H04N19/33 , H04N19/107 , H04N19/115 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/61
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

35. 发明授权

US07453938B2 Target bitrate estimator, picture activity and buffer management in rate control for video coder 失效
标题翻译：视频编码器速率控制中的目标比特率估计器，图像活动和缓冲器管理
公开(公告)号：US07453938B2
公开(公告)日：2008-11-18
申请号：US10812062
申请日：2004-03-30
申请人： Barin Geoffry Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
发明人： Barin Geoffry Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
IPC分类号： H04B1/66 , H04N11/02
CPC分类号： H04N19/33 , H04N19/107 , H04N19/115 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/61
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

36. 发明授权

US07869503B2 Rate and quality controller for H.264/AVC video coder and scene analyzer therefor 有权
标题翻译： H.264 / AVC视频编码器和场景分析仪的速率和质量控制器
公开(公告)号：US07869503B2
公开(公告)日：2011-01-11
申请号：US10811982
申请日：2004-03-30
申请人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
发明人： Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie , Atul Puri
IPC分类号： H04N7/12
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/159 , H04N19/169 , H04N19/172 , H04N19/18 , H04N19/194 , H04N19/196 , H04N19/51 , H04N19/59 , H04N19/61
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

37. 发明申请

US20050175091A1 Rate and quality controller for H.264/AVC video coder and scene analyzer therefor 有权
标题翻译： H.264 / AVC视频编码器和场景分析仪的速率和质量控制器
公开(公告)号：US20050175091A1
公开(公告)日：2005-08-11
申请号：US10811982
申请日：2004-03-30
申请人： Atul Puri , Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie
发明人： Atul Puri , Barin Haskell , Adriana Dumitras , James Normile , Hsi-Jung Wu , Xiaochun Nie
IPC分类号： H04N7/12 , H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/159 , H04N19/169 , H04N19/172 , H04N19/18 , H04N19/194 , H04N19/196 , H04N19/51 , H04N19/59 , H04N19/61
摘要： A rate control system is disclosed for video coding applications. The rate controller assigns a quantization parameter for video data in a picture in response to complexity indicators indicative of spatial complexity, motion complexity and/or bits per pel of the picture. A virtual buffer based quantizer parameter is proposed based on a virtual buffer fullness analysis and a target rate estimate, which is derived from the complexity indicators. A second quantizer parameter is proposed from a linear regression analysis of quantizer parameters used to code previously coded pictures of similar type (e.g., I pictures, P pictures or B pictures). A coding policy decision unit defines a final quantizer parameter from a comparison of the two proposed quantizer parameters.
摘要翻译：公开了一种用于视频编码应用的速率控制系统。速率控制器响应于表示图像的空间复杂度，运动复杂度和/或每像素的复杂度指示符，为图像中的视频数据分配量化参数。基于虚拟缓冲区丰满度分析和目标速率估计提出了一种基于虚拟缓冲器的量化器参数，该参数是从复杂性指标中得出的。从用于对先前编码的类似类型的图像（例如，I图像，P图像或B图像）进行编码的量化器参数的线性回归分析提出了第二量化参数。编码策略决定单元根据两个提出的量化器参数的比较来定义最终的量化器参数。

38. 发明授权

US11573630B2 Systems and methods for calibrating an eye tracking system 有权
公开(公告)号：US11573630B2
公开(公告)日：2023-02-07
申请号：US16753907
申请日：2018-10-09
申请人： Xiaochun Nie
发明人： Xiaochun Nie
IPC分类号： G06F3/01 , G06T7/73 , H04N5/247
摘要： Disclosed herein are various methods of calibrating relative orientation between imaging sensor and spatial orientation sensor, and relative orientation between imaging sensors.

39. 发明授权

US11170531B2 Systems and methods for calibrating imaging and spatial orientation sensors 有权
公开(公告)号：US11170531B2
公开(公告)日：2021-11-09
申请号：US16638615
申请日：2018-09-05
申请人： Xiaochun Nie
发明人： Xiaochun Nie
IPC分类号： G06T7/80
摘要： Disclosed herein are various methods of calibrating relative orientation between spatial orientation sensors, relative orientation between imaging sensor and spatial orientation sensor, and relative orientation between imaging sensors. The relative orientation of the spatial orientation sensors, imaging sensors is calculated with respect to a reference frame.

40. 发明申请

US20220005225A1 SYSTEMS AND METHODS FOR CALIBRATING IMAGING AND SPATIAL ORIENTATION SENSORS 有权
公开(公告)号：US20220005225A1
公开(公告)日：2022-01-06
申请号：US17480894
申请日：2021-09-21
申请人： Xiaochun Nie
发明人： Xiaochun Nie
IPC分类号： G06T7/80
摘要： Disclosed herein are various methods of calibrating relative orientation between spatial orientation sensors, relative orientation between imaging sensor and spatial orientation sensor, and relative orientation between imaging sensors. The relative orientation of the spatial orientation sensors, imaging sensors is calculated with respect to a reference frame.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式