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公开(公告)号：US08077256B1
公开(公告)日：2011-12-13
申请号：US12793848
申请日：2010-06-04
IPC分类号： H04N5/238
CPC分类号： H04N5/2351
摘要： A scene-aware auto-exposure control process stabilizes changes in a camera's auto-exposure settings so as to reduce lighting and color flicker during image capture operations. A metric, referred to as the Modified Adjusted Luminance (MAL) metric, is defined to remain relatively constant as long as the lighting of the scene being captured remains relatively constant. Thus, scene changes such as an object moving into, out of, or around in a scene do not significantly affect the MAL metric's value and do not, therefore, trigger an exposure adjustment. Once the MAL metric indicates a scene's lighting is stable, the camera's auto-exposure operation may be suppressed. As long as incoming frames indicate a stable lighting condition (based on the MAL metric), auto-exposure operation may remain suppressed. When incoming frames result in a substantially different MAL over a specified number of frames, auto-exposure operation may be restored.
摘要翻译： 场景感知自动曝光控制过程可稳定照相机自动曝光设置的变化，以减少图像拍摄过程中的照明和颜色闪烁。 被称为修正调整亮度（MAL）度量的度量被定义为保持相对恒定，只要被捕获的场景的照明保持相对恒定。 因此，诸如移动到场景中的，离开或在场景中的对象的场景改变不会显着影响MAL度量的值，因此不会触发曝光调整。 一旦MAL指标表明场景的照明是稳定的，则可能会抑制相机的自动曝光操作。 只要进入的帧指示稳定的照明条件（基于MAL度量），自动曝光操作可能仍然被抑制。 当输入帧在指定数量的帧上导致基本上不同的MAL时，可以恢复自动曝光操作。
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12.发明申请公开(公告)号：US20130223525A1
公开(公告)日：2013-08-29
申请号：US13463547
申请日：2012-05-03
申请人： Xiaosong Zhou , James Oliver Normile , Hsi-Jung Wu
发明人： Xiaosong Zhou , James Oliver Normile , Hsi-Jung Wu
IPC分类号： H04N7/32
CPC分类号： H04N19/97 , H04N19/103 , H04N19/105 , H04N19/176 , H04N19/20
摘要： In a video coding system, an encoder may include a coding engine to predictively code input video, a decoder to reconstruct reference pictures generated by the coding engine, a reference picture cache to store the reconstructed reference pictures, a patch cache to store prediction patches generated from other sources, and a prediction search unit to search among the reference picture cache and the patch cache to generate prediction references for use by the coding engine while coding input video. The prediction patches may be assembled from a variety of sources including: predefined image content, reference pictures being evicted from the reference picture cache, image content of prior coding sessions and image data stored by applications on a common terminal where the encoder resides. A decoder may store prediction patches in its own patch cache for synchronous decoding.
摘要翻译： 在视频编码系统中，编码器可以包括用于预测性地编码输入视频的编码引擎，解码器，以重构由编码引擎生成的参考图片，用于存储重构的参考图片的参考图像高速缓存，用于存储生成的预测补丁的补丁高速缓存 以及预测搜索单元，用于在参考图像高速缓存和片段高速缓存之间进行搜索，以生成预测参考，供编码引擎在编码输入视频时使用。 预测补丁可以从各种来源进行组合，包括：预定图像内容，从参考图像缓存中逐出的参考图片，先前编码会话的图像内容以及存储在编码器驻留的公共终端上的应用程序存储的图像数据。 解码器可以将预测补丁存储在其自己的补丁缓存中用于同步解码。
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公开(公告)号：US20120057073A1
公开(公告)日：2012-03-08
申请号：US13292353
申请日：2011-11-09
IPC分类号： H04N5/238
CPC分类号： H04N5/2351
摘要： A scene-aware auto-exposure control process stabilizes changes in a camera's auto-exposure settings so as to reduce lighting and color flicker during image capture operations. A metric, referred to as the Modified Adjusted Luminance (MAL) metric, is defined to remain relatively constant as long as the lighting of the scene being captured remains relatively constant. Thus, scene changes such as an object moving into, out of, or around in a scene do not significantly affect the MAL metric's value and do not, therefore, trigger an exposure adjustment. Once the MAL metric indicates a scene's lighting is stable, the camera's auto-exposure operation may be suppressed. As long as incoming frames indicate a stable lighting condition (based on the MAL metric), auto-exposure operation may remain suppressed. When incoming frames result in a substantially different MAL over a specified number of frames, auto-exposure operation may be restored.
摘要翻译： 场景感知自动曝光控制过程可稳定照相机自动曝光设置的变化，以减少图像拍摄过程中的照明和颜色闪烁。 被称为修正调整亮度（MAL）度量的度量被定义为保持相对恒定，只要被捕获的场景的照明保持相对恒定。 因此，诸如移动到场景中的，离开或在场景中的对象的场景改变不会显着影响MAL度量的值，因此不会触发曝光调整。 一旦MAL指标表明场景的照明是稳定的，则可能会抑制相机的自动曝光操作。 只要进入的帧指示稳定的照明条件（基于MAL度量），自动曝光操作可能仍然被抑制。 当输入帧在指定数量的帧上导致基本上不同的MAL时，可以恢复自动曝光操作。
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公开(公告)号：US08718129B2
公开(公告)日：2014-05-06
申请号：US11934394
申请日：2007-11-02
IPC分类号： H04N7/12
CPC分类号： H04N19/436 , H04N19/103 , H04N19/156 , H04N19/176 , H04N19/42 , H04N19/44 , H04N19/61 , H04N19/88
摘要： A method and system are provided for decoding coded video data by turning off or not loading at least one functional unit or functional subunit of the decoder while decoding a portion of the coded video data. A schedule may be created prior to substantive decoding and then the schedule may be used to decode coded video data. The coded video data may be reordered based on the functional units or subunits the portions of the coded video data need for decoding. The portions of the coded video data are reordered into their original order in an output buffer after being decoded. The decoder may determine which functional units or subunits are needed for decoding based on administration information included with the coded video data. The decoder may decode portions of the coded video data in parallel.
摘要翻译： 提供了一种方法和系统，用于通过在对一部分编码视频数据进行解码的同时关闭或不加载解码器的至少一个功能单元或功能子单元来解码编码的视频数据。 可以在实质性解码之前创建调度，然后可以使用调度来解码经编码的视频数据。 编码视频数据可以基于编码视频数据部分需要解码的功能单元或子单元重新排序。 在解码之后，将编码的视频数据的部分重新排序成输出缓冲器中的原始顺序。 解码器可以基于包括在编码视频数据中的管理信息来确定需要哪个功能单元或子单元进行解码。 解码器可以并行地解码编码视频数据的部分。
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15.发明申请公开(公告)号：US20070217503A1
公开(公告)日：2007-09-20
申请号：US11710183
申请日：2007-02-23
CPC分类号： H04N19/30 , H04N19/132 , H04N19/187 , H04N19/196 , H04N19/33 , H04N19/46 , H04N19/61 , H04N21/234327 , H04N21/2389 , H04N21/2662 , H04N21/4385 , H04N21/64792 , H04N21/6582 , H04N21/8451
摘要： Scalable video coding and multiplexing compatible with non-scalable decoders is disclosed. In some embodiments, video data is received and encoded in a manner that renders at least a base layer to be compatible with a non-scalable video encoding standard, including by assigning for at least the base layer default values to one or more scalability parameters. In some embodiments, video data is received and encoded to produce an encoded video data that includes a base layer that conforms to a non-scalable video encoding standard and one or more subordinate non-scalable layers, which subordinate non-scalable layers do not by themselves conform to the non-scalable video encoding standard but which can be combined with the base layer to produce a result that does conform to the non-scalable video encoding standard, such that the result can be decoded by a non-scalable decoder. An identification data identifying those portions of the encoded video data that are associated with a subordinate non-scalable layer is included in the encoded video data.
摘要翻译： 公开了与不可扩展解码器兼容的可扩展视频编码和复用。 在一些实施例中，视频数据以使至少基本层与不可扩展视频编码标准兼容的方式被接收和编码，包括通过将至少基本层默认值分配给一个或多个可伸缩性参数。 在一些实施例中，视频数据被接收和编码以产生编码的视频数据，该编码视频数据包括符合不可分级视频编码标准的基本层和一个或多个从属非可缩放层，其中不可扩展层不由 它们符合不可扩展视频编码标准，但可以与基本层组合以产生符合非可分级视频编码标准的结果，使得结果可以由不可扩展解码器解码。 识别与下级不可缩放层相关联的编码视频数据部分的识别数据被包括在编码视频数据中。
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公开(公告)号：US5719961A
公开(公告)日：1998-02-17
申请号：US625608
申请日：1996-03-29
申请人： James Oliver Normile , Katherine Shu-wei Wang , Ke-Chiang Chu , Dulce Beatriz Ponceleon , Hsi-Jung Wu
发明人： James Oliver Normile , Katherine Shu-wei Wang , Ke-Chiang Chu , Dulce Beatriz Ponceleon , Hsi-Jung Wu
CPC分类号： H04N19/103 , H04N19/105 , H04N19/107 , H04N19/132 , H04N19/14 , H04N19/176
摘要： A signal processing system determines the characteristic of a signal for encoding or decoding by examining and classifying such signal, and then applies a transformation or inverse transformation to such signal. Depending on classification of the signal, various transforms or inverse transforms are applicable adaptively thereto.
摘要翻译： 信号处理系统通过检查和分类这样的信号来确定用于编码或解码的信号的特性，然后对这样的信号应用变换或逆变换。 根据信号的分类，可以适应性地适用各种变换或逆变换。
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17.发明授权公开(公告)号：US08937997B2
公开(公告)日：2015-01-20
申请号：US11710183
申请日：2007-02-23
IPC分类号： H04N19/00 , H04N19/196 , H04N21/2343 , H04N21/2389 , H04N21/2662 , H04N21/4385 , H04N21/647 , H04N21/658 , H04N21/845 , H04N19/132 , H04N19/187 , H04N19/61 , H04N19/46 , H04N19/33
CPC分类号： H04N19/30 , H04N19/132 , H04N19/187 , H04N19/196 , H04N19/33 , H04N19/46 , H04N19/61 , H04N21/234327 , H04N21/2389 , H04N21/2662 , H04N21/4385 , H04N21/64792 , H04N21/6582 , H04N21/8451
摘要： Scalable video coding and multiplexing compatible with non-scalable decoders is disclosed. In some embodiments, video data is received and encoded in a manner that renders at least a base layer to be compatible with a non-scalable video encoding standard, including by assigning for at least the base layer default values to one or more scalability parameters. In some embodiments, video data is received and encoded to produce an encoded video data that includes a base layer that conforms to a non-scalable video encoding standard and one or more subordinate non-scalable layers, which subordinate non-scalable layers do not by themselves conform to the non-scalable video encoding standard but which can be combined with the base layer to produce a result that does conform to the non-scalable video encoding standard, such that the result can be decoded by a non-scalable decoder. An identification data identifying those portions of the encoded video data that are associated with a subordinate non-scalable layer is included in the encoded video data.
摘要翻译： 公开了与不可扩展解码器兼容的可扩展视频编码和复用。 在一些实施例中，视频数据以使至少基本层与不可扩展视频编码标准兼容的方式被接收和编码，包括通过将至少基本层默认值分配给一个或多个可伸缩性参数。 在一些实施例中，视频数据被接收和编码以产生编码的视频数据，该编码视频数据包括符合不可分级视频编码标准的基本层和一个或多个从属非可缩放层，其中不可扩展层不由 它们符合不可扩展视频编码标准，但可以与基本层组合以产生符合非可分级视频编码标准的结果，使得结果可以由不可扩展解码器解码。 识别与下级不可缩放层相关联的编码视频数据部分的识别数据被包括在编码视频数据中。
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公开(公告)号：US07827458B1
公开(公告)日：2010-11-02
申请号：US10379012
申请日：2003-03-03
IPC分类号： H04L1/18
CPC分类号： H04L1/1838
摘要： A method, apparatus, system, and signal-bearing medium that in an embodiment detect that a first packet is not received, add a place holder for the first packet in a buffer, request retransmission of the first packet, and create an estimated packet based on a combination of a second packet previous to the first packet, a third packet following the first packet, and a fourth packet from a previous frame that is spatially corresponding to the first packet. In another embodiment, a method, apparatus, system, and signal-bearing medium are provided that send a encoded packet to a receiver, save the encoded packet in a bitstream, determine whether the encoded packet is lost, and when the encoded packet is lost, decode the bitstream with the lost packet omitted and insert a reconstructed frame associated with the lost packet into a reference frame storage. In another embodiment, when the encoded packet is lost, a decoder is run on a reference frame chosen as the last uncorrupted frame. In another embodiment, when the encoded packet is lost, the decoder is run on a frame chosen from a set of previously stored reference frames.
摘要翻译： 一种方法，装置，系统和信号承载介质，其在一个实施例中检测到未接收到第一分组，在缓冲器中添加第一分组的占位符，请求重新发送第一分组，并创建基于估计的分组 在第一分组之前的第二分组的组合，第一分组之后的第三分组以及在空间上对应于第一分组的来自前一帧的第四分组。 在另一个实施例中，提供了一种方法，装置，系统和信号承载介质，其将经编码的分组发送到接收机，将经编码的分组存储在比特流中，确定编码分组是否丢失，以及编码分组丢失时 ，丢失丢失的分组解码比特流，并将与丢失分组相关联的重构帧插入到参考帧存储器中。 在另一个实施例中，当编码分组丢失时，解码器在被选择为最后未被破坏的帧的参考帧上运行。 在另一个实施例中，当编码分组丢失时，解码器在从一组先前存储的参考帧中选择的帧上运行。
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公开(公告)号：US20110181686A1
公开(公告)日：2011-07-28
申请号：US12950648
申请日：2010-11-19
IPC分类号： H04N7/15
CPC分类号： H04N7/147 , H04L65/403 , H04L65/80 , H04L69/24
摘要： A method, apparatus, system, and signal-bearing medium that in an embodiment determine at least one capability of a transfer of data, set at least one parameter that affects performance of the transfer to an initial state based on the capability, detect performance of the transfer, and modify the parameter based on the performance. In this way, the data transfer can adapt to changing capabilities of the network and the devices that send and receive the data.
摘要翻译： 一种方法，装置，系统和信号承载介质，其在一个实施例中确定数据传送的至少一个能力，基于能力将影响性能的至少一个参数设置为初始状态，检测性能 传输，并根据性能修改参数。 以这种方式，数据传输可以适应网络和发送和接收数据的设备的变化能力。
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公开(公告)号：US08175260B2
公开(公告)日：2012-05-08
申请号：US11745568
申请日：2007-05-08
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： A method, apparatus, system, and signal-bearing medium that in an embodiment determine a degree of correlation between a speaker output signal and a microphone input signal and modulate an adaptive gain of an acoustic echo canceller based on the degree of correlation.
摘要翻译： 一种方法，装置，系统和信号承载介质，其在一个实施例中确定扬声器输出信号和麦克风输入信号之间的相关程度，并且基于相关度调制声学回声消除器的自适应增益。
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