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41. 发明申请

US20050175097A1 Block transform and quantization for image and video coding 有权
公开(公告)号：US20050175097A1
公开(公告)日：2005-08-11
申请号：US11104943
申请日：2005-04-12
申请人： Henrique Malvar
发明人： Henrique Malvar
IPC分类号： G06F17/14 , G06T9/00 , H03M7/30 , H04N1/41 , H04N7/26 , H04N7/30 , H04N7/50 , H04N7/12
CPC分类号： G06F17/147 , H04N19/126 , H04N19/60 , H04N19/61
摘要： An improved method and block transform for image or video encoding and decoding, wherein transformation and inverse transformation matrixes are defined such that computational complexity is significantly reduced when encoding and decoding. For example, in the two-dimensional inverse transformation of de-quantized transform coefficients into output pixel information during decoding, only four additions plus one shift operation are needed, per co-efficient transformation, all in sixteen-bit arithmetic. Transformations provide correct results because quantization during encoding and de-quantization (sixteen bit) during decoding, via the use of one of three tables selected based on each coefficient's position, have parameter values that already compensate for factors of other transformation multiplications, except for those of a power of two, (e.g., two or one-half), which are performed by a shift operation during the transformation and inverse transformation processes. Computational complexity is significantly reduced with respect to other known transforms without adversely impacting compression or quality.

42. 发明申请

US20050091062A1 Systems and methods for generating audio thumbnails 有权
标题翻译：用于生成音频缩略图的系统和方法
公开(公告)号：US20050091062A1
公开(公告)日：2005-04-28
申请号：US10785560
申请日：2004-02-24
申请人： Christopher Burges , John Platt , Daniel Plastina , Erin Renshaw , Henrique Malvar
发明人： Christopher Burges , John Platt , Daniel Plastina , Erin Renshaw , Henrique Malvar
IPC分类号： G10L15/10 , G06F7/00 , G06F17/30 , G06K9/00 , G10H1/00 , G10L11/02 , G10L15/00 , G11B27/031 , G11B27/28
CPC分类号： G11B27/28 , G06F17/30743 , G06F17/30775 , G06K9/00523 , G10H1/00 , G10H1/0008 , G10H2210/061 , G10H2240/131 , G10L25/48 , G11B27/031 , Y10S707/99939
摘要： The present invention relates to a system and methodology to facilitate automatic generation of mnemonic audio portions or segments referred to as audio thumbnails. A system is provided for summarizing audio information. The system includes an analysis component to determine common features in an audio file and a mnemonic detector to extract fingerprint portions of the audio file based in part on the common features in order to generate a thumbnail of the audio file. The generated thumbnails can then be employed to facilitate browsing or searching audio files in order to mitigate listening to longer portions or segments of such files.
摘要翻译：本发明涉及一种便于自动生成称为音频缩略图的助记音频部分或片段的系统和方法。提供了一种用于汇总音频信息的系统。该系统包括用于确定音频文件中的共同特征的分析组件和助记符检测器，以部分地基于公共特征提取音频文件的指纹部分，以便生成音频文件的缩略图。然后可以使用所生成的缩略图来促进浏览或搜索音频文件，以便减轻对这些文件的较长部分或段的监听。

43. 发明授权

US07643676B2 System and method for adaptive interpolation of images from patterned sensors 有权
标题翻译：用于图形传感器图像自适应插值的系统和方法
公开(公告)号：US07643676B2
公开(公告)日：2010-01-05
申请号：US11046324
申请日：2005-01-29
申请人： Henrique Malvar
发明人： Henrique Malvar
IPC分类号： G06K9/00
CPC分类号： G06T3/4015
摘要： A adaptive filter interpolation method and system for the demosaicing of color images. In general, input pixels are input in a Bayer-mosaiced pattern (only one color per pixel), and output pixels are in full RGB mode (three color values per pixel). For each pixel location, in raster scan order, the processing steps can be summarized as follows. Following a regular raster scanning order (from left to right and top to bottom), for each pixel location horizontal and vertical gradients are first computed (whose computation depends on the available color for that pixel), and from those the appropriate interpolation filters are chosen from a small set of predetermined filters. Then, the chosen filters are applied to interpolate the missing data.
摘要翻译：一种用于彩色图像去马赛克的自适应滤波器插值方法和系统。通常，输入像素以拜耳镶嵌图案（每像素仅一种颜色）输入，并且输出像素处于完全RGB模式（每像素三个颜色值）。对于每个像素位置，以光栅扫描顺序，处理步骤可以总结如下。按照常规光栅扫描顺序（从左到右和从上到下），对于每个像素位置，首先计算水平和垂直渐变（其计算取决于该像素的可用颜色），并从中选择合适的内插滤波器从一小组预定的过滤器。然后，应用所选择的滤波器来内插丢失的数据。

44. 发明申请

US20060198538A1 MICROPHONE ARRAY SIGNAL ENHANCEMENT 有权
标题翻译：麦克风阵列信号增强
公开(公告)号：US20060198538A1
公开(公告)日：2006-09-07
申请号：US11383745
申请日：2006-05-16
申请人： Henrique Malvar , Dinei Florencio , Bradford Gillespie
发明人： Henrique Malvar , Dinei Florencio , Bradford Gillespie
IPC分类号： H04R3/00 , H03G3/00
CPC分类号： H03H21/0012 , H04R1/005
摘要： A system and method facilitating signal enhancement utilizing an adaptive filter is provided. The invention includes an adaptive filter that filters an input based upon a plurality of adaptive coefficients and modifies the adaptive coefficients based on a feedback output. A feedback component provides the feedback output based, at least in part, upon a non-linear function of the acoustic reverberation reduced output. Optionally, the system can further include a linear prediction (LP) analyzer and/or a LP synthesis filter. The system can enhance signal(s), for example, to improve the quality of speech that is acquired by a microphone by reducing reverberation. The system utilizes, at least in part, the principle that certain characteristics of reverberated speech are measurably different from corresponding characteristics of clean speech. The system can employ a filter technology (e.g., reverberation reducing) based on a non-linear function, for example, the kurtosis metric.
摘要翻译：提供了利用自适应滤波器促进信号增强的系统和方法。本发明包括一种自适应滤波器，其基于多个自适应系数对输入进行滤波，并且基于反馈输出修改自适应系数。至少部分地，基于声学混响减小的输出的非线性函数，反馈分量提供反馈输出。可选地，系统还可以包括线性预测（LP）分析器和/或LP合成滤波器。该系统可以增强信号，例如，通过减少混响来提高麦克风获取的语音质量。该系统至少部分地利用了混响语音的某些特征与清晰语音的相应特征有显着差异的原理。该系统可以采用基于非线性函数（例如峰度度量）的滤波技术（例如，减小混响）。

45. 发明申请

US20060156412A1 System and Method for Protecting Data Streams in Hardware Components 有权
标题翻译：用于保护硬件组件中数据流的系统和方法
公开(公告)号：US20060156412A1
公开(公告)日：2006-07-13
申请号：US11277012
申请日：2006-03-20
申请人： Henrique Malvar , Paul England
发明人： Henrique Malvar , Paul England
IPC分类号： H04N7/16 , H04L9/32 , G06F17/30 , G06F7/04 , G06K9/00 , H03M1/68 , H04K1/00 , H04L9/00
CPC分类号： H04K1/02 , G11B20/00086 , G11B20/0021 , H04N5/913 , H04N7/1675 , H04N2005/91364
摘要： A scrambling architecture protects data streams in the operating system and hardware components of a computer by scrambling the otherwise raw data prior to the data being handled by the operating system. The architecture has a scrambler implemented at either the client or the server that adds noise to the content. More specifically, the scrambler produces periodic sets of tone patterns having varying amplitudes based on a first key. The scrambler also generates a random signal based on the first key and a second key. The tone patterns and random signal are added to the content to scramble the content. The scrambled content is then passed to the filter graph (or other processing system) where the content is processed while scrambled. Any attacker attempting to siphon off the bits during processing will steal only noisy data, which is worthless for redistribution or copying purposes. After processing, the scrambled data is passed to a driver for output. The driver implements a descrambler to unscramble the content by subtracting out the random noise signal. The descrambler detects the tone patterns in the content and recovers the first key from the varying amplitudes of the tone patterns. The descrambler also receives the second key via a separate channel (e.g., a cryptographically secured path) and generates the same random signal using the recovered first key and the second key. The descrambler subtracts the tone patterns and the random signal from the scrambled content to restore the content.
摘要翻译：加扰架构通过在操作系统处理数据之前加扰原始数据来保护计算机的操作系统和硬件组件中的数据流。该架构具有在客户端或服务器上实现的加扰器，从而对内容增加噪声。更具体地，扰频器基于第一密钥产生具有变化幅度的周期性音调模式集合。加扰器还基于第一密钥和第二密钥生成随机信号。将音调模式和随机信号添加到内容以加扰内容。然后，加扰的内容被传递到滤波器图（或其他处理系统），其中处理内容被加扰。任何在处理过程中试图虹吸位的攻击者都将窃取嘈杂的数据，这对于重新分配或复制目的是无价值的。处理后，将加扰的数据传递给驱动程序进行输出。驱动器通过减去随机噪声信号实现解扰器来解扰内容。解扰器检测内容中的音调模式，并从音调模式的变化幅度恢复第一个键。解扰器还经由单独的信道（例如，密码保护的路径）接收第二密钥，并且使用恢复的第一密钥和第二密钥生成相同的随机信号。解扰器从加扰的内容中减去音调模式和随机信号以恢复内容。

46. 发明申请

US20060023958A1 System and method for progressively transforming and coding digital data 有权
公开(公告)号：US20060023958A1
公开(公告)日：2006-02-02
申请号：US11206507
申请日：2005-08-18
申请人： Henrique Malvar
发明人： Henrique Malvar
IPC分类号： G06K9/36
CPC分类号： H04N1/646 , H04N1/41 , H04N19/60 , H04N19/635 , H04N19/91 , H04N19/93
摘要： A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringing artifacts as compared to many conventional compression systems. The invention includes a color space mapper, a multi-resolution lapped transform, a quantizer, a scanner and an entropy encoder. The multi-resolution lapped transform outputs transform coefficients, for example, first transform coefficients and second transform coefficients. A multi-resolution representation can be obtained utilizing second transform coefficients of the multi-resolution lapped transform. The color space mapper maps an input image to a color space representation of the input image. The color space representation of the input image is then provided to the multi-resolution lapped transform. The quantizer receives the first transform coefficients and/or the second transform coefficients and provides an output of quantized coefficients for use by the scanner and/or the entropy encoder. The scanner scans the quantized coefficients in order to produce a one-dimensional vector for use by the entropy encoder. The entropy encoder encodes the quantized coefficients received from the quantizer and/or the scanner resulting in data compression.

47. 发明申请

US20050276494A1 System and method for progressively transforming and coding digital data 有权
标题翻译：数字数据逐渐变换和编码的系统和方法
公开(公告)号：US20050276494A1
公开(公告)日：2005-12-15
申请号：US11206506
申请日：2005-08-18
申请人： Henrique Malvar
发明人： Henrique Malvar
IPC分类号： H04N11/04 , H03M7/30 , H03M7/40 , H04N1/41 , H04N1/64 , H04N19/60 , G06K9/36
CPC分类号： H04N1/646 , H04N1/41 , H04N19/60 , H04N19/635 , H04N19/91 , H04N19/93
摘要： A system and method facilitating progressively transforming and coding digital pictures is provided. The present invention via employment of a multi-resolution lapped transform provides for progressive rendering as well as mitigation of blocking artifacts and ringing artifacts as compared to many conventional compression systems. The invention includes a color space mapper, a multi-resolution lapped transform, a quantizer, a scanner and an entropy encoder. The multi-resolution lapped transform outputs transform coefficients, for example, first transform coefficients and second transform coefficients. A multi-resolution representation can be obtained utilizing second transform coefficients of the multi-resolution lapped transform. The color space mapper maps an input image to a color space representation of the input image. The color space representation of the input image is then provided to the multi-resolution lapped transform. The quantizer receives the first transform coefficients and/or the second transform coefficients and provides an output of quantized coefficients for use by the scanner and/or the entropy encoder. The scanner scans the quantized coefficients in order to produce a one-dimensional vector for use by the entropy encoder. The entropy encoder encodes the quantized coefficients received from the quantizer and/or the scanner resulting in data compression.
摘要翻译：提供了一种促进逐行变换和编码数字图像的系统和方法。通过使用多分辨率重叠变换的本发明与许多传统的压缩系统相比，提供渐进渲染以及减轻块伪影和振铃伪像。本发明包括色空间映射器，多分辨率重叠变换，量化器，扫描器和熵编码器。多分辨率重叠变换输出变换系数，例如，第一变换系数和第二变换系数。可以利用多分辨率重叠变换的第二变换系数来获得多分辨率表示。颜色空间映射器将输入图像映射到输入图像的颜色空间表示。然后将输入图像的颜色空间表示提供给多分辨率重叠变换。量化器接收第一变换系数和/或第二变换系数，并提供由扫描仪和/或熵编码器使用的量化系数的输出。扫描仪扫描量化系数以产生熵编码器使用的一维向量。熵编码器对从量化器和/或扫描器接收的量化系数进行编码，从而产生数据压缩。

48. 发明申请

US20050271281A1 Clustering 有权
标题翻译：聚类
公开(公告)号：US20050271281A1
公开(公告)日：2005-12-08
申请号：US11198562
申请日：2005-08-05
申请人： Patrice Simard , Henrique Malvar , Erin Renshaw
发明人： Patrice Simard , Henrique Malvar , Erin Renshaw
IPC分类号： G06T7/00 , G06F19/00 , G06K9/20 , G06K9/36 , G06K9/46 , G06K9/62 , G06K9/64 , G06K9/68 , G06T5/00 , G06T11/00
CPC分类号： G06K9/00442 , G06K9/46 , G06K9/6202 , G06K2209/01
摘要： Systems and methods for performing clustering of a document image are disclosed. A property of an extracted mark from a document is compared to the properties of the existing clusters. If the property of the mark fails to match any of the properties of the existing clusters, the mark is added as a new cluster to the existing cluster. One property that can be utilized is x size and y size, which is the width and height, of the existing clusters. Another property that can be employed is ink size, which refers to the ratio of black pixels to total pixels in a cluster. Yet another property that can be utilized is a reduced mark or image, which is a pixel size reduced version the bitmap of the mark and/or cluster. The above properties can be employed to identify mismatches and reduce the number of bit by bit comparisons performed.
摘要翻译：公开了用于执行文档图像的聚类的系统和方法。将来自文档的提取标记的属性与现有集群的属性进行比较。如果标记的属性无法匹配现有集群的任何属性，则该标记作为新集群添加到现有集群。可以使用的一个属性是x size和y size，这是现有集群的宽度和高度。可以使用的另一个属性是墨水大小，其指的是群集中黑色像素与总像素的比例。可以使用的另一个属性是缩小的标记或图像，其是像素尺寸缩小版本的标记和/或集群的位图。可以采用上述特性来识别不匹配并减少进行的逐比较比较。

49. 发明申请

US20050226514A1 Distributing limited storage among a collection of media objects 有权
公开(公告)号：US20050226514A1
公开(公告)日：2005-10-13
申请号：US11149037
申请日：2005-06-08
申请人： Thomas Getzinger , Henrique Malvar
发明人： Thomas Getzinger , Henrique Malvar
IPC分类号： G06F7/00 , G06K9/36 , G06T9/00 , H04N7/26
CPC分类号： G06T9/00 , H04N19/115 , H04N19/124 , H04N19/147 , H04N19/154 , H04N19/172 , H04N19/192 , H04N19/196 , Y10S707/99942 , Y10S707/99945
摘要： A quality level determining the extent to which each image file is compressed is automatically computed for each image file in a set to ensure that the total size of the compressed image files does not exceed a predefined limit. The compressed size of each image file is initially determined when compressed at a predefined minimum acceptable level and at a nominal level. The relative complexity of the image files is determined based upon their high frequency energy content. As a function of the image file complexity, and starting with the compressed sizes initially determined, the appropriate quality level is determined for compressing each of the image files in an iterative process that ensures the total size of the compressed image files does not exceed the predefined limit, while retaining acceptable quality. Thus, a set of image files can be compressed optimally to fit within a limited storage.

50. 发明申请

US20050201616A1 High-quality gradient-corrected linear interpolation for demosaicing of color images 有权
标题翻译：高质量梯度校正线性插值，用于彩色图像的去马赛克
公开(公告)号：US20050201616A1
公开(公告)日：2005-09-15
申请号：US10801450
申请日：2004-03-15
申请人： Henrique Malvar , Li-wei He , Ross Cutler
发明人： Henrique Malvar , Li-wei He , Ross Cutler
IPC分类号： G06T1/00 , G06T3/40 , H04N1/46 , H04N1/60 , G06K9/00
CPC分类号： G06T3/4015
摘要： A gradient-corrected linear interpolation method and system for the demosaicing of color images. The method and system compute an interpolation using some a current technique (preferably a bilinear interpolation technique to reduce computational complexity), compute a correction term (such as a gradient of a desired color at a given pixel), and linearly combine the interpolation and the correction term to produce a corrected, high-quality interpolation of a missing color value at a pixel. The correction term may be a gradient correction term computed from the current color of the current pixel. This gradient is directly used to affect and correct the estimated color value produced by the prior art interpolation technique. The gradient-corrected linear interpolation method and system may also apply a gradient-correction gain to the gradient correction term. This gradient-correction gain affects the amount of gradient correction that is applied to the interpolation.
摘要翻译：用于彩色图像去马赛克的渐变校正线性插值方法和系统。该方法和系统使用一些当前技术（优选双线性插值技术来减少计算复杂度）来计算插值，计算校正项（例如给定像素处的期望颜色的梯度），并且将内插和校正项，以产生在像素处缺失颜色值的校正的高质量插值。校正项可以是从当前像素的当前颜色计算的梯度校正项。该梯度直接用于影响和校正由现有技术插值技术产生的估计颜色值。梯度校正线性插值方法和系统还可以对梯度校正项应用梯度校正增益。该梯度校正增益影响应用于插值的梯度校正量。

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