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公开(公告)号：US20110110422A1
公开(公告)日：2011-05-12
申请号：US12938397
申请日：2010-11-03
CPC分类号： H04N19/184 , H04N19/124 , H04N19/146 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/196 , H04N19/198 , H04N19/70
摘要： A video encoder receives a minimum number of bits (MIN) and a maximum number of bits (MAX) to be used to encode a segment of a sequence of image frames, the segment including a set of pictures contained in the sequence of image frames. The video encoder encodes the set of pictures using a total number of bits greater than the minimum number of bits (MIN), and not exceeding the maximum number of bits (MAX). Thus, the transmission bit-rate of the video encoder can be constrained to lie within a maximum and minimum rate. In an embodiment, the constraints are enforced over relatively short time intervals.
摘要翻译： 视频编码器接收要用于编码图像帧序列的最小位数（MIN）和最大位数（MAX），该片段包括包含在图像帧序列中的一组图像。 视频编码器使用大于最小位数（MIN）的总位数来编码图像组，并且不超过最大位数（MAX）。 因此，视频编码器的传输比特率可以被限制在最大和最小速率之内。 在一个实施例中，约束在相对短的时间间隔内被强制执行。
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公开(公告)号：US20110109753A1
公开(公告)日：2011-05-12
申请号：US12940046
申请日：2010-11-05
CPC分类号： H04N19/14 , H04N19/124 , H04N19/137 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/513 , H04N19/61 , H04N19/85
摘要： Method and system to improve the performance of a video encoder. The method includes processing an initial video signal in a front-end image pre-processor to obtain a processed video signal and processor information respecting the signal, providing the processed video signal and the processor information to a video encoder, and encoding the video signal in the video encoder according to the processor information to provide an encoded video signal for storage. The system includes a video pre-processor connectable to receive an initial video signal. The video encoder in communication with the video pre-processor receives a processed video signal and a processor information. A storage medium in communication with the video encoder stores an encoded video signal.
摘要翻译： 提高视频编码器性能的方法和系统。 该方法包括处理前端图像预处理器中的初始视频信号以获得处理后的视频信号和与该信号相关的处理器信息，将经处理的视频信号和处理器信息提供给视频编码器，并对视频信号进行编码 视频编码器根据处理器信息提供编码视频信号进行存储。 该系统包括可连接以接收初始视频信号的视频预处理器。 与视频预处理器通信的视频编码器接收经处理的视频信号和处理器信息。 与视频编码器通信的存储介质存储经编码的视频信号。
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公开(公告)号：US09473792B2
公开(公告)日：2016-10-18
申请号：US12940046
申请日：2010-11-05
IPC分类号： H04N19/513 , H04N19/61 , H04N19/14 , H04N19/137 , H04N19/85 , H04N19/46
CPC分类号： H04N19/14 , H04N19/124 , H04N19/137 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/513 , H04N19/61 , H04N19/85
摘要： Method and system to improve the performance of a video encoder. The method includes processing an initial video signal in a front-end image pre-processor to obtain a processed video signal and processor information respecting the signal, providing the processed video signal and the processor information to a video encoder, and encoding the video signal in the video encoder according to the processor information to provide an encoded video signal for storage. The system includes a video pre-processor connectable to receive an initial video signal. The video encoder in communication with the video pre-processor receives a processed video signal and a processor information. A storage medium in communication with the video encoder stores an encoded video signal.
摘要翻译： 提高视频编码器性能的方法和系统。 该方法包括处理前端图像预处理器中的初始视频信号以获得处理后的视频信号和与该信号相关的处理器信息，将经处理的视频信号和处理器信息提供给视频编码器，并对视频信号进行编码 视频编码器根据处理器信息提供编码视频信号进行存储。 该系统包括可连接以接收初始视频信号的视频预处理器。 与视频预处理器通信的视频编码器接收经处理的视频信号和处理器信息。 与视频编码器通信的存储介质存储经编码的视频信号。
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公开(公告)号：US08817884B2
公开(公告)日：2014-08-26
申请号：US12951035
申请日：2010-11-20
申请人： Arun Shankar Kudana , Ajit Venkat Rao , Soyeb Nagori , Manoj Koul , Zhan Ma , Do-Kyoung Kwon
发明人： Arun Shankar Kudana , Ajit Venkat Rao , Soyeb Nagori , Manoj Koul , Zhan Ma , Do-Kyoung Kwon
CPC分类号： H04N19/00175 , H04N19/107 , H04N19/109 , H04N19/124 , H04N19/14 , H04N19/147 , H04N19/167 , H04N19/17 , H04N19/18 , H04N19/182 , H04N19/19 , H04N19/80 , H04N19/87
摘要： In a video encoder, pixel values of a macro-block are processed to determine an activity measure indicative of the type of content in the macro-block. Several techniques are employed for determining the activity measure of a macro-block. In an embodiment, a default quantization scale for quantizing a macro-block is modified based on the activity measure of the macro-block. In another embodiment, the macro-block is classified into one of multiple classes based on its activity measure. The default quantization scale for quantizing the macro-block is modified based on the classification of the macro-block. In yet another embodiment, an encoding mode to be used for encoding a macro-block is also determined on the basis of the class of the macro-block. Several of the techniques exploit the fact that the human visual system (HVS) has different sensitivities in perceiving a (rendered) macro-block or video frame, depending on the type of macro-block content.
摘要翻译： 在视频编码器中，处理宏块的像素值以确定指示宏块中的内容类型的活动度量。 采用几种技术来确定宏块的活动度量。 在一个实施例中，基于宏块的活动度量来修改用于量化宏块的默认量化尺度。 在另一个实施例中，基于其活动度量将宏块分类为多个类别之一。 基于宏块的分类修改用于量化宏块的默认量化尺度。 在另一个实施例中，还根据宏块的类确定用于编码宏块的编码模式。 几种技术利用人类视觉系统（HVS）根据宏块内容的类型在感知（渲染）宏块或视频帧时具有不同的灵敏度。
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5.发明授权Limiting the maximum size of an encoded video picture using sub-picture based rate control 有权使用基于子图像的速率控制来限制编码视频图像的最大尺寸公开(公告)号：US08780973B2
公开(公告)日：2014-07-15
申请号：US13206718
申请日：2011-08-10
CPC分类号： H04N19/00096 , H04N19/115 , H04N19/126 , H04N19/15 , H04N19/176
摘要： A method for encoding a picture in a video sequence is provided that includes determining the current encoded size of the picture after coding a plurality of macroblocks in the picture, determining that encoding remaining macroblocks in the picture may cause the encoded size of the picture to exceed a maximum encoded picture size, computing a quantization scale responsive to the determining, wherein the quantization scale is computed such that the estimated encoded size of the remaining macroblocks if the remaining macroblocks are quantized with the quantization scale does not exceed the difference between the maximum encoded picture size and the current encoded picture size, and quantizing at least one of the remaining macroblocks with the new quantization scale.
摘要翻译： 提供了一种用于对视频序列中的图像进行编码的方法，包括：在编码图像中的多个宏块之后确定图像的当前编码大小，确定图像中的剩余宏块编码可能导致图像的编码大小超过 最大编码图像大小，响应于该确定来计算量化尺度，其中计算量化比例，使得如果剩余宏块用量化比例量化的剩余宏块的估计编码大小不超过最大编码图像大小之间的差 图像尺寸和当前编码图像尺寸，并用新的量化尺度量化剩余宏块中的至少一个。
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公开(公告)号：US20130128950A1
公开(公告)日：2013-05-23
申请号：US13303748
申请日：2011-11-23
IPC分类号： H04N7/26
摘要： A method and system for bit rate control during encoding of multimedia data are disclosed. A change in complexity of a multimedia picture relative to complexity associated with one or more multimedia pictures in a multimedia sequence is determined. A complexity associated with a multimedia picture is determined based on number of bits and an average quantization associated with the multimedia picture. A bit rate is adjusted for encoding the multimedia picture based on the change in complexity of the multimedia picture. The bit rate is increased on determining an increase in complexity of the multimedia picture and is decreased on determining a decrease in complexity of the multimedia picture. Utilization of additional bits during the increase in the bit rate and saving of bits during the decrease in the bit rate are compensated during adjusting of bit rates for encoding subsequent multimedia pictures in the multimedia sequence.
摘要翻译： 公开了一种用于多媒体数据编码期间比特率控制的方法和系统。 确定多媒体图像相对于与多媒体序列中的一个或多个多媒体图像相关的复杂度的复杂度的变化。 基于与多媒体图像相关联的比特数和平均量化来确定与多媒体图像相关联的复杂度。 基于多媒体图像的复杂度的变化，调整比特率以对多媒体图像进行编码。 在确定多媒体图像的复杂度的增加时，比特率增加，并且在确定多媒体图片的复杂度的降低时减少。 在调整用于对多媒体序列中的后续多媒体图像进行编码的比特率时，补偿比特率降低期间比特率增加和比特率保存期间附加比特的利用。
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公开(公告)号：US08345996B2
公开(公告)日：2013-01-01
申请号：US12465673
申请日：2009-05-14
申请人： Arun Shankar Kudana , Soyeb Nagori
发明人： Arun Shankar Kudana , Soyeb Nagori
CPC分类号： H04N19/00684 , H04N19/105 , H04N19/112 , H04N19/132 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/523 , H04N19/573
摘要： Several methods and a system to perform determination of a field referencing pattern are disclosed. In one aspect, a method is disclosed. A motion vector of a previously coded frame is analyzed using a processor and a memory. A statistic is updated based on whether the motion vector includes one or more of a fractional pel vertical component, a half pel vertical component, and an integer pel vertical component. A field referencing pattern of a target field is determined based on the statistic and an exception protocol.
摘要翻译： 公开了几种方法和执行场参考模式确定的系统。 一方面，公开了一种方法。 使用处理器和存储器来分析先前编码的帧的运动矢量。 基于运动矢量是否包括分数像素垂直分量，半像素垂直分量和整数像素垂直分量中的一个或多个来更新统计量。 基于统计量和异常协议来确定目标字段的字段引用模式。
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8.发明授权公开(公告)号：US08170356B2
公开(公告)日：2012-05-01
申请号：US12060887
申请日：2008-04-02
申请人： Manu Mathew , Soyeb Nagori , Pramod Kumar Swami
发明人： Manu Mathew , Soyeb Nagori , Pramod Kumar Swami
IPC分类号： G06K9/36
CPC分类号： H04N19/31 , H04N19/107 , H04N19/114 , H04N19/124 , H04N19/139 , H04N19/142 , H04N19/159 , H04N19/164 , H04N19/172 , H04N19/177 , H04N19/56 , H04N19/61
摘要： The method, system, and apparatus of linear temporal reference scheme having non-reference predictive frames is disclosed. In one embodiment, a method of a temporal reference scheme includes creating a non-reference predictive frame and a reference predictive frame from a reference frame, increasing a quantization factor of the non-reference predictive frame by a threshold value, and decreasing the quantization factor of the reference predictive frame by the threshold value. The method may include toggling between the temporal reference scheme and another temporal reference scheme in which there may be no non-reference predictive frames and only reference predictive frames based on a scenario. The method may also include calculating a target bit rate across a communication channel through a bit rate calculation algorithm that considers a bandwidth capacity across the communication channel.
摘要翻译： 公开了具有非参考预测帧的线性时间参考方案的方法，系统和装置。 在一个实施例中，时间参考方案的方法包括从参考帧创建非参考预测帧和参考预测帧，将非参考预测帧的量化因子增加阈值，并且减小量化因子 的参考预测帧的阈值。 该方法可以包括在时间参考方案和另一个时间参考方案之间切换，其中可以不存在基于场景的非参考预测帧和仅参考预测帧。 该方法还可以包括通过考虑跨通信信道的带宽容量的比特率计算算法来计算跨通信信道的目标比特率。
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9.发明申请公开(公告)号：US20110311153A1
公开(公告)日：2011-12-22
申请号：US13222384
申请日：2011-08-31
申请人： Soyeb NAGORI
发明人： Soyeb NAGORI
IPC分类号： G06K9/36
CPC分类号： G06K9/6282 , H04N19/11 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/593 , H04N19/61
摘要： The method, system, and apparatus of source statistics based intra prediction type is disclosed. In one embodiment, a method includes classifying a four-pixel square block in an edge class (e.g., may include a DC edge class, a vertical edge class, a horizontal edge class, a diagonal edge class, and/or a planar edge class) based on an edge classifier, classifying an eight-pixel square block having the four-pixel square block and other four-pixel square blocks as a homogenous class if the four-pixel square block and the other four-pixel square blocks of the eight-pixel square block belong to the edge class, assigning a direction to the edge class of the eight-pixel square block, and determining an optimal intra-prediction type through the classification such that empirical testing of all possible ones of the edge class and the direction is avoided when the homogenous class is identified.
摘要翻译： 公开了基于源统计的帧内预测类型的方法，系统和装置。 在一个实施例中，一种方法包括对边缘类中的四像素平方块进行分类（例如，可以包括DC边缘类，垂直边缘类，水平边缘类，对角边缘类和/或平面边缘类 ）基于边缘分类器，如果八像素的四像素方块和四像素平方块的四像素平方块和四像素平方块的四像素平方块 像素平方块属于边缘类，向八像素平方块的边缘类分配方向，并且通过分类确定最佳帧内预测类型，使得对边缘类和所有边缘类的所有可能的经验检验 当确定同质类时，避免了方向。
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公开(公告)号：US20110235706A1
公开(公告)日：2011-09-29
申请号：US13053419
申请日：2011-03-22
IPC分类号： H04N7/26
CPC分类号： H04N19/126 , H04N19/14 , H04N19/17
摘要： A method of encoding an image frame in a video encoding system. The image frame has a region of interest (ROI) and a non region of interest (non-ROI). In the method, quantization scale for the image frame based on rate control information is determined. ROI statistics based on residual energy of the ROI and non-ROI is then calculated. Quantization scale for the image frame based on ROI priorities and ROI statistics is calculated. Further, quantization scales for ROI and non-ROI based on ROI priorities are determined.
摘要翻译： 一种对视频编码系统中的图像帧进行编码的方法。 图像帧具有感兴趣区域（ROI）和非感兴趣区域（非ROI）。 在该方法中，确定基于速率控制信息的图像帧的量化尺度。 然后计算基于ROI和非ROI的剩余能量的ROI统计。 计算基于ROI优先级和ROI统计量的图像帧的量化标度。 此外，确定基于ROI优先级的用于ROI和非ROI的量化尺度。
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