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公开(公告)号：US06661842B1
公开(公告)日：2003-12-09
申请号：US09667903
申请日：2000-09-22
IPC分类号： H04N712
CPC分类号： H04N19/126 , H03M13/41 , H04N19/10 , H04N19/115 , H04N19/146 , H04N19/147 , H04N19/19 , H04N19/503 , H04N19/61 , H04N19/619 , H04N19/63 , H04N19/645
摘要： Apparatus and methods are provided for encoding an input frame of a video sequence for transmission over a channel. The method and apparatus decompose the input frame into multiple subbands and divide the multiple subbands into multiple blocks corresponding to a region of the input frame. The blocks in the highest frequency subbands of the multiple blocks are selected based upon a luminance component of the input frame and the multiple blocks in the highest frequency subbands are classified into a multiple classes to provide a multiple class labels. The multiple class labels are collected to form a subband class map for each of the multiple blocks in the highest frequency subbands and a global class map is constructed from a majority evaluation of the subband map for each of the multiple blocks. The multiple blocks within the multiple subbands are grouped which have one of the class labels to form multiple subband class sequences.
摘要翻译： 提供了用于对视频序列的输入帧进行编码以便通过信道传输的装置和方法。 该方法和装置将输入帧分解为多个子带，并将多个子带划分成与输入帧的区域相对应的多个块。 基于输入帧的亮度分量选择多个块的最高频率子带中的块，并且将最高频率子带中的多个块分类为多个类以提供多个类别标签。 收集多类标签以形成最高频率子带中的多个块中的每一个的子带类别映射，并且从多个块的每一个的子带映射的多数评估构建全局类映射。 多个子带中的多个块被分组，其具有一个类别标签以形成多个子带类别序列。
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公开(公告)号：US06539122B1
公开(公告)日：2003-03-25
申请号：US09050293
申请日：1998-03-30
IPC分类号： G06K936
CPC分类号： G06T9/007
摘要： A hyperspectral image encoder (10) for compressing hyperspectral imagery includes a differential pulse code modulation (DPCM) loop (26) to perform data decorrelation in the spectral domain and a discrete wavelet transform (DWT) processing means (28) to perform decorrelation in the spatial domain. The DPCM loop (26) determines an error image between a present image at the input of the encoder (10) and a predicted image. The DWT processing means (28) then divides the error image into a plurality of frequency subbands and quantizes information within the subbands in accordance with a plurality of predetermined quantization states to provide a coded output signal. In one embodiment, an interband predictor (24) is provided to predict an image, for use in calculating the error image, using the coded output signal.
摘要翻译： 用于压缩高光谱图像的高光谱图像编码器（10）包括在频域中执行数据去相关的差分脉码调制（DPCM）回路（26）和离散小波变换（DWT）处理装置（28），以执行解相关 空间域。 DPCM循环（26）确定编码器（10）输入端的当前图像与预测图像之间的误差图像。 DWT处理装置（28）然后根据多个预定的量化状态将误差图像划分成多个频率子带并对子带内的信息进行量化，以提供编码的输出信号。 在一个实施例中，提供了一个带间预测器（24），用于使用编码的输出信号来预测用于计算误差图像的图像。
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公开(公告)号：US08417060B2
公开(公告)日：2013-04-09
申请号：US11688660
申请日：2007-03-20
申请人： Glen Patrick Abousleman , Huibao Lin , Jennie Si
发明人： Glen Patrick Abousleman , Huibao Lin , Jennie Si
IPC分类号： G06K9/36
CPC分类号： G06K9/4671 , G06K2009/2045 , G06K2209/503 , G06T3/4038 , G06T7/33
摘要： Methods for generating an image mosaic are provided. In one respect, pixels saliency of a first image and a second image are determined. One salient pixel may be selected from the determined pixels saliency group of the first image and one salient pixel may be selected from the determined pixels saliency group of the second image. A mosaicking technique of the first and second image may be performed if the one salient pixel of the first image and the one salient pixel of the second image are registered successfully.
摘要翻译： 提供了生成图像拼接的方法。 在一方面，确定第一图像和第二图像的像素显着性。 可以从第一图像的确定的像素显着组中选择一个显着像素，并且可以从所确定的第二图像的像素显着组中选择一个显着像素。 如果第一图像的一个显着像素和第二图像的一个显着像素被成功地注册，则可以执行第一和第二图像的镶嵌技术。
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4.发明授权Method and apparatus for encoding compressible data for transmission over variable quality communication channel 有权用于编码可压缩数据以在可变质量通信信道上传输的方法和装置公开(公告)号：US07339881B1
公开(公告)日：2008-03-04
申请号：US10437422
申请日：2003-05-12
CPC分类号： H04L27/2608 , H04W52/34
摘要： A multi-carrier communication system (400) groups subchannels (802) into different quality-of-signal (QoS) regions (804). An unconstrained optimization process (1200) is performed independently for the subchannels (802) of the different QoS regions (804) to allocate bit rates and power to the individual subchannels (802) so that the indicated QoS will result. Coders (504, 508, 512, 516, 1700) partition and error-correction encode source information using encoding schemes matched to the different QoS regions (804). A set (1100) of only a few directed QoS partition vectors (1102) direct the unconstrained optimization process (1200) to attempt bit-rate and power allocations on only a few promising groupings of subchannels (802) and QoS regions (804). An iterative process may take place between bit-rate and power allocation on one side and source information coding on the other for different directed QoS partition vectors (1102) to identify the best solution. A coder (1700) may use a dual allocation process (1800) to iteratively combine a rate-allocation process (1724) with a QoS-region-allocation process (1726) to specify codebooks (1720) for use by a codebook quantizer (1718).
摘要翻译： 多载波通信系统（400）将子信道（802）分组成不同的信号质量（QoS）区域（804）。 对不同QoS区域（804）的子信道（802）独立地执行无约束优化处理（1200），以向各个子信道（802）分配比特率和功率，从而导致指示的QoS。 （504,508,512,516,1700）使用与不同QoS区域匹配的编码方案来对源信息进行分区和纠错编码（804）。 只有少数有针对性的QoS分区向量（1102）的集合（1100）引导无约束优化过程（1200）来仅对少量有希望的子信道分组（802）和QoS区域（804）尝试比特率和功率分配。 迭代过程可以在一侧的比特率和功率分配之间进行，另一方面对于不同的定向QoS分区向量（1102）可以进行源信息编码，以识别最佳解决方案。 编码器（1700）可以使用双重分配过程（1800）来迭代地组合速率分配过程（1724）与QoS区域分配过程（1726），以指定码本（1720）供码本量化器（1718）使用 ）。
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5.发明授权公开(公告)号：US07310301B1
公开(公告)日：2007-12-18
申请号：US10417942
申请日：2003-04-18
CPC分类号： H04L27/2608 , H04W52/34
摘要： A multi-carrier communication system (400) groups subchannels (802) into different quality-of-signal (QoS) regions (804). An unconstrained optimization process (1200) is performed independently for the subchannels (802) of the different QoS regions (804) to allocate bit rates and power to the individual subchannels (802) so that the indicated QoS will result. Coders (504, 508, 512, 516) partition and error-correction encode source information using encoding schemes matched to the different QoS regions (804). A set (1100) of only a few directed QoS partition vectors (1102) direct the unconstrained optimization process (1200) to attempt bit-rate and power allocations on only a few promising groupings of subchannels (802) and QoS regions (804). An iterative process may take place between bit-rate and power allocation on one side and source information coding on the other for different directed QoS partition vectors (1102) to identify the best solution.
摘要翻译： 多载波通信系统（400）将子信道（802）分组成不同的信号质量（QoS）区域（804）。 对不同QoS区域（804）的子信道（802）独立地执行无约束优化处理（1200），以向各个子信道（802）分配比特率和功率，从而导致指示的QoS。 （504,508,512,516）使用与不同QoS区域匹配的编码方案对分组和纠错编码源信息（804）。 只有少数有针对性的QoS分区向量（1102）的集合（1100）将无约束优化过程（1200）引导到对子信道（802）和QoS区域（804）的少数有希望的分组上尝试比特率和功率分配。 迭代过程可以在一侧的比特率和功率分配之间进行，另一方面对于不同的定向QoS分区向量（1102）可以进行源信息编码，以识别最佳解决方案。
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公开(公告)号：US06535647B1
公开(公告)日：2003-03-18
申请号：US09276588
申请日：1999-03-25
IPC分类号： G06K936
CPC分类号： G06T9/004 , G01J3/2823 , G06T9/008
摘要： A system is presented for compression of hyperspectral imagery. Specifically, DPCM is used for spectral decorrelation, while an adaptive 2-D discrete cosine transform (DCT) (22) coding scheme is used for spatial decorrelation. Trellis coded quantization (23) is used to encode the transform coefficients. Side information and rate allocation strategies (36) are discussed. Entropy-constrained codebooks are designed using a modified version of the generalized Lloyd algorithm
摘要翻译： 提出了一种用于压缩高光谱图像的系统。 具体地，DPCM用于频谱解相关，而自适应2-D离散余弦变换（DCT）（22）编码方案用于空间去相关。 网格编码量化（23）用于对变换系数进行编码。 讨论边信息和费率分配策略（36）。 熵约束码本使用广义劳埃德算法的修改版本进行设计
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7.发明授权Method and apparatus for speech excitation waveform coding using multiple error waveforms 失效用于使用多个误差波形的语音激励波形编码的方法和装置
公开(公告)号：US5809459A
公开(公告)日：1998-09-15
申请号：US651172
申请日：1996-05-21
CPC分类号： G10L19/125 , G10L19/24
摘要： A method and apparatus (100) for pitch-epoch-synchronous source-filter speech encoding by means of error component modeling methods (310) which capture fundamental orthogonal (uncorrelated) basis elements of an excitation source waveform. A periodic waveform model (318) along with four orthogonal error waveforms, desirably including phase error (319), ensemble error (321), standard deviation error (323), and mean error (324) waveforms, are incorporated together to form a complete description of the excitation. These error waveforms (319,321, 323, 324) represent those portions of the excitation that are not represented by the purely periodic model. By thus orthogonalizing the error components, the perceptual effect of each element is isolated from the composite set, and can thus be encoded separately. In addition to high-quality, fixed-rate operation, the identity-system capability and low complexity of the speech encoding method and apparatus make them applicable to variable-rate applications without changing underlying modeling methods.
摘要翻译： 一种利用捕获激励源波形的基本正交（不相关）基元的误差分量建模方法（310）来进行音调同步源滤波语音编码的方法和装置（100）。 周期性波形模型（318）连同四个正交误差波形，包括相位误差（319），综合误差（321），标准偏差误差（323）和平均误差（324）波形，并入一起形成一个完整的 激励的描述。 这些误差波形（319,321,323,324）表示不由纯周期模型表示的激发部分。 通过这样正交化误差分量，每个元素的感知效果从复合集合中分离出来，因此可以分开编码。 除了高质量，固定速率的操作之外，语音编码方法和设备的身份识别系统能力和低复杂度使得它们适用于可变速率应用而不改变基础建模方法。
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公开(公告)号：US20080259796A1
公开(公告)日：2008-10-23
申请号：US12105130
申请日：2008-04-17
IPC分类号： H04L12/24
摘要： Methods and devices for a media processing is provided. In one respect, the methods can provide initiating a bandwidth throttle or a frame rate throttle when resources of a network exceed resources of client device. The methods of the present disclosure may also provide techniques for handling lost packets during transmission using wavelet coefficients.
摘要翻译： 提供了媒体处理的方法和设备。 在一方面，当网络的资源超过客户端设备的资源时，该方法可以提供启动带宽节流或帧速率节流。 本公开的方法还可以提供用于在使用小波系数的传输期间处理丢失分组的技术。
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公开(公告)号：US07020335B1
公开(公告)日：2006-03-28
申请号：US09717592
申请日：2000-11-21
IPC分类号： G06K9/48
CPC分类号： G06K9/3241 , G06K9/42 , H04N19/115 , H04N19/124 , H04N19/136 , H04N19/17 , H04N19/46 , H04N19/63
摘要： Apparatus and methods are provided for object recognition and compression. The apparatus (114) comprises an object processor (402) configured to receive the image (120) and synthesize a contour (404) of an object within the image (120) and a classification engine (406) configured to receive the contour (404) of the image (120) and recognize the object within the image as a member of a first object class if the object substantially meets first object criteria of the first object class that is at least partially related to the target-specific utility of the image. The apparatus (114) also comprises a multi-rate encoder (116) configured to compress a first region of the image (120) having said object recognized as said member of said first object class at a first coding rate, said first coding rate providing a first coding resolution of said first region that is greater than a second coding resolution provided by a second coding rate for the image.
摘要翻译： 提供了用于对象识别和压缩的装置和方法。 装置（114）包括被配置为接收图像（120）并且合成图像（120）内的对象的轮廓（404）的对象处理器（402）和被配置为接收轮廓的分类引擎（404） ），并且如果对象基本上满足与图像的目标特定效用至少部分相关的第一对象类的第一对象标准，则将图像内的对象识别为第一对象类的成员 。 所述设备（114）还包括多速率编码器（116），其被配置为以第一编码率压缩具有被识别为所述第一对象类别的所述成员的所述对象的图像（120）的第一区域，所述第一编码率提供 所述第一区域的第一编码分辨率大于由图像的第二编码率提供的第二编码分辨率。
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10.发明授权Communication system and method for multi-rate, channel-optimized trellis-coded quantization 有权用于多速率，通道优化网格编码量化的通信系统和方法公开(公告)号：US06717990B1
公开(公告)日：2004-04-06
申请号：US09478058
申请日：2000-01-05
IPC分类号： H04L512
CPC分类号： H03M13/6312 , H03M7/30 , H03M13/00
摘要： A communication system (20) employs fixed rate channel-optimized, trellis-coded quantization (COTCQ) at a plurality of diverse encoding bit rates. COTCQ is performed through a COTCQ encoder (40) and COTCQ decoder (54). The COTCQ encoder and decoder (40,54) each include a codebook table (62) having at least one codebook (64) for each encoding bit rate. Each codebook (64) is configured in response to the bit error probability of the channel (26) through which the communication system (20) communicates. The bit error probability influences codebooks through the calculation of channel transition probabilities for all combinations of codewords (90) receivable from the channel (26) given all combinations of codewords (90) transmittable through the channel (26). Channel transition probabilities are responsive to base channel transition probabilities and the hamming distances between indices for codewords within subsets of the transmittable and receivable codewords.
摘要翻译： 通信系统（20）以多种不同的编码比特率采用固定速率信道优化的网格编码量化（COTCQ）。 COTCQ通过COTCQ编码器（40）和COTCQ解码器（54）执行。 COTCQ编码器和解码器（40,54）各自包括码本表（62），其具有用于每个编码比特率的至少一个码本（64）。 每个码本（64）被配置为响应通信系统（20）所通信的信道（26）的比特错误概率。 给定可通过通道（26）传送的所有码字组合（90），通过计算可从信道（26）接收的码字（90）的所有组合的信道转换概率，比特错误概率影响码本。 信道转换概率响应于可发射和可接收码字的子集内的码字的基本信道转换概率和索引之间的汉明距离。
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