Scalable digital video decompressor
    1.
    发明授权
    Scalable digital video decompressor 失效
    可扩展数字视频解压缩器

    公开(公告)号:US5300949A

    公开(公告)日:1994-04-05

    申请号:US965129

    申请日:1992-10-22

    摘要: Decompression of video segments from a sequence of differential frames is done by selected scaling of frame resolution and color depth. A frame header indicates the computational complexity of decompression of a frame, allowing selection of scales for output resolution and color depth. Decompression proceeds by retrieving a frame from the compressed video stream in elementary units. An elementary unit is characterized by types, including an unchanged type, a homogeneous type, a pattern type and a predetermined pattern type. For a retrieved elementary unit of the unchanged type, an output pointer to a display buffer is moved by an elementary unit scaled by the output resolution scale. For a retrieved elementary unit of the homogeneous type, a color retrieved from the compressed video stream is applied to an area in the display buffer corresponding to an elementary unit scaled by the output resolution scale. For a retrieved elementary unit of the predetermined pattern type, a pattern from a table of patterns is retrieved using an index from the compressed video segment as an address. Two colors for the pattern are also retrieved and applied to the pattern.

    摘要翻译: 通过选择缩放帧分辨率和颜色深度来实现从差分帧序列中减少视频片段。 帧头指示帧的解压缩的计算复杂度,允许选择用于输出分辨率和颜色深度的比例。 通过以基本单元从压缩视频流检索帧来进行减压。 基本单元的特征在于类型,包括不变类型,均匀类型,图案类型和预定图案类型。 对于未更改类型的检索到的基本单元,通过以输出分辨率刻度缩放的基本单元移动到显示缓冲器的输出指针。 对于检索到的均匀类型的基本单元,从压缩视频流中检索的颜色被应用于显示缓冲器中对应于由输出分辨率刻度缩放的基本单元的区域。 对于预定模式类型的检索到的基本单元,使用来自压缩视频段的索引作为地址来检索来自表格表的模式。 图案的两种颜色也被检索并应用于图案。

    System and method for frame differencing video compression and
decompression with frame rate scalability
    2.
    发明授权
    System and method for frame differencing video compression and decompression with frame rate scalability 失效
    用于帧差分视频压缩和解压缩与帧率可扩展性的系统和方法

    公开(公告)号:US5384598A

    公开(公告)日:1995-01-24

    申请号:US963791

    申请日:1992-10-20

    CPC分类号: H04N19/503 H04N19/587

    摘要: A system and method of compressing original video data expressed in a plurality of digitally coded frames which enable decompression and playback of resulting compressed video data at one of a plurality of frame rates while maintaining temporal fidelity of the frames displayed. Compression includes selecting a plurality of rate streams for the compressed video data, including a highest rate stream including all of the frames of the original video data and a lowest rate stream including a subset of regularly spaced frames of the original video data. Then the initial frame in the original video data is spatially compressed and the resulting compressed data placed in the compressed video data. The initial frame is also saved as a base frame for all rate streams for subsequent temporal compression of the original video data. As frames are retrieved from the original video data in sequence, temporal compression based on frame differencing techniques between the retrieved frame and the base is carried out, with difference frames being stored to the compressed video data. Each difference frame is placed in the resulting compressed video data for later decompression and reproduction.

    摘要翻译: 一种压缩以多个数字编码的帧表示的原始视频数据的系统和方法,其能够以多个帧速率之一解压缩和重放所生成的压缩视频数据,同时保持显示的帧的时间保真度。 压缩包括为压缩视频数据选择多个速率流,包括包括原始视频数据的所有帧的最高速率流和包括原始视频数据的规则间隔帧的子集的最低速率流。 然后原始视频数据中的初始帧被空间压缩,并将得到的压缩数据放置在压缩视频数据中。 初始帧也被保存为用于所有速率流的基本帧,用于原始视频数据的后续时间压缩。 由于依次从原始视频数据中检索帧,所以执行基于检索到的帧和基站之间的帧差分技术的时间压缩,其中差分帧被存储到压缩视频数据。 每个差分帧被放置在所得到的压缩视频数据中,用于随后的解压缩和再现。

    Hybrid video compression system and method capable of software-only
decompression in selected multimedia systems
    3.
    发明授权
    Hybrid video compression system and method capable of software-only decompression in selected multimedia systems 失效
    混合视频压缩系统和方法能够在选定的多媒体系统中进行软件解压缩

    公开(公告)号:US5392072A

    公开(公告)日:1995-02-21

    申请号:US965580

    申请日:1992-10-23

    摘要: Hybrid compression processes for digital color video data that enables software only playback of the compressed digital video in low-end computers, wherein intraframe and interframe compression techniques are brought together through a sequence of procedures that analyze local frame regions, integrate unique processes with block truncation coding compression, and adopt the advantages of visual pattern image coding for color video. The process determines the appropriate encoding of each local frame region with one of various compression techniques, based upon its image properties. The compression methods retain the fidelity of the original video data to provide high quality video during decompression and reconstruction of high motion and textured video clips, while simultaneously providing sufficient compression and ease of decoding for software-only decompression thereby exhibiting properties that enable good quality video to be displayed in low-end computers.

    摘要翻译: 用于数字彩色视频数据的混合压缩处理,其使得仅在低端计算机中仅软件压缩数字视频的复制,其中通过分析本地帧区域的一系列过程将帧内和帧间压缩技术汇集在一起​​,将特定进程与块截断集成 编码压缩,并采用彩色视频的视觉图像图像编码优点。 该过程基于其图像属性,使用各种压缩技术之一来确定每个局部帧区域的适当编码。 压缩方法保留了原始视频数据的保真度,以便在高运动和纹理视频剪辑的解压缩和重建期间提供高质量视频,同时为仅软件解压缩提供足够的压缩和易于解码,从而展现能够实现高质量视频的属性 显示在低端电脑中。

    Luminance transition coding method for software motion video
compression/decompression

    公开(公告)号:US5528514A

    公开(公告)日:1996-06-18

    申请号:US475381

    申请日:1995-06-07

    IPC分类号: H04N7/26 H04N7/28 G06F17/00

    CPC分类号: H04N19/94 H04N19/98

    摘要: An digital video image processing system employs codes of various lengths to encode the luminance information within the digital video images. The inventive method and apparatus divides a video image into non-overlapping regions containing a plurality of pixels with luminance values. Within each region, the method computes the total luminance variation across the region, the direction of greatest luminance change within the region, the base, or lowest, luminance value within the region and the location and type of luminance transition within the region. Depending on the variation of the luminance values within a region and on the quality desired in the decoded image, the computed information is used to encode the luminance values in short, medium, or long codes. The luminance codes may be predetermined and unchanging or they may vary from image to image or within given images.

    Luminance transition coding method for software motion video
compression/decompression
    5.
    发明授权
    Luminance transition coding method for software motion video compression/decompression 失效
    用于软件运动视频压缩/解压缩的亮度转换编码方法

    公开(公告)号:US5465118A

    公开(公告)日:1995-11-07

    申请号:US170044

    申请日:1993-12-17

    IPC分类号: H04N7/26 H04N7/28

    CPC分类号: H04N19/94 H04N19/98

    摘要: An digital video image processing system employs codes of various lengths to encode the luminance information within the digital video images. The inventive method and apparatus divides a video image into non-overlapping regions containing a plurality of pixels with luminance values. Within each region, the method computes the total luminance variation across the region, the direction of greatest luminance change within the region, the base, or lowest, luminance value within the region and the location and type of luminance transition within the region. Depending on the variation of the luminance values within a region and on the quality desired in the decoded image, the computed information is used to encode the luminance values in short, medium, or long codes. The luminance codes may be predetermined and unchanging or they may vary from image to image or within given images.

    摘要翻译: 数字视频图像处理系统使用各种长度的代码对数字视频图像内的亮度信息进行编码。 本发明的方法和装置将视频图像分成包含具有亮度值的多个像素的非重叠区域。 在每个区域内,该方法计算区域内的总亮度变化,区域内的最大亮度变化方向,基底或最低亮度值以及该区域内的亮度转换的位置和类型。 根据区域内的亮度值和解码图像所期望的质量的变化,使用计算出的信息来对短,中,长码的亮度值进行编码。 亮度代码可以是预定的和不变的,或者它们可以根据图像或给定的图像而变化。

    Method and apparatus for improved compression and recording of color
video data in a personal computer using a plurality of lookup tables
    6.
    发明授权
    Method and apparatus for improved compression and recording of color video data in a personal computer using a plurality of lookup tables 失效
    用于使用多个查找表在个人计算机中改进压缩和记录彩色视频数据的方法和装置

    公开(公告)号:US5319793A

    公开(公告)日:1994-06-07

    申请号:US964675

    申请日:1992-10-21

    摘要: A personal computer system is operated to concurrently execute threads of multitasking operations to capture motion video data from a video source, compress such data, and record the compressed data in a file. Compression is selectively done in either one of two modes, an inter-frame compression mode and a intra-frame compression mode, both modes being block-oriented. During intra-frame compression, homogenous blocks are used to represent four pixel values with a single pixel value when the four pixels in a block are perceptually similar. During inter-frame compression, unchanged blocks are used to represent four pixel values as unchanged from the preceding frame when the four pixels are perceptually similar to the same four pixels in the preceding frame. Additionally, inter-frame compressed video frames use homogenous blocks to represent four pixel values with a single pixel when the four pixel values in a block are perceptually similar to each other but are perceptually different from the same four pixels in the previous frame.

    摘要翻译: 操作个人计算机系统以同时执行多任务操作的线程以从视频源捕获运动视频数据,压缩这些数据,并将压缩数据记录在文件中。 压缩选择性地以两种模式之一,即帧间压缩模式和帧内压缩模式,这两种模式都是面向块的。 在帧内压缩期间,当块中的四个像素在感知上相似时,使用均匀块来表示具有单个像素值的四个像素值。 在帧间压缩期间,当四个像素在感知上类似于前一帧中的相同四个像素时,未使用的块用于表示与前一帧不变的四个像素值。 此外,当块中的四个像素值彼此感知相似时,帧间压缩视频帧使用同质块来表示具有单个像素的四个像素值,但在感知上不同于前一帧中的相同的四个像素。

    Variable spatial frequency chrominance encoding in software motion video
compression
    8.
    发明授权
    Variable spatial frequency chrominance encoding in software motion video compression 失效
    软件运动视频压缩中的可变空间频率色度编码

    公开(公告)号:US5453787A

    公开(公告)日:1995-09-26

    申请号:US165372

    申请日:1993-12-10

    IPC分类号: H04N7/26 H04N11/04 H04N7/66

    CPC分类号: H04N11/042 H04N19/00

    摘要: An image-compression/decompression system employs a variable spatial-frequency encoder to encode the chrominance information contained within a video image. The system divides the video image into non-overlapping regions and partitions each region into sub-regions. Within each region, the system computes a weighted average of the chrominance values in each sub-region, and compares the weighted average value associated with each sub-region to the weighted average values associated with the other sub-regions within the region. If differences between the average values are less than a predetermined threshold amount, the system assigns a single chrominance encoded value to the entire region. If, on the other hand, the differences between the weighted average values is more than the predetermined threshold amount, the system assigns individual chrominance values to each of the sub-regions.

    摘要翻译: 图像压缩/解压缩系统采用可变空间频率编码器来对包含在视频图像中的色度信息进行编码。 该系统将视频图像划分为非重叠区域,并将每个区域划分为子区域。 在每个区域内,系统计算每个子区域中的色度值的加权平均值,并且将与每个子区域相关联的加权平均值与与该区域内的其他子区域相关联的加权平均值进行比较。 如果平均值之间的差异小于预定阈值量,则系统将单个色度编码值分配给整个区域。 另一方面,如果加权平均值之间的差异大于预定阈值量,则系统将各个色度值分配给每个子区域。

    Technique for training a phonetic decision tree with limited phonetic exceptional terms
    9.
    发明授权
    Technique for training a phonetic decision tree with limited phonetic exceptional terms 有权
    用有限的语音特殊术语训练语音决策树的技术

    公开(公告)号:US08027834B2

    公开(公告)日:2011-09-27

    申请号:US11767751

    申请日:2007-06-25

    申请人: Steven M. Hancock

    发明人: Steven M. Hancock

    IPC分类号: G10L15/04

    CPC分类号: G10L13/04

    摘要: The present invention discloses a method for training an exception-limited phonetic decision tree. An initial subset of data can be selected and used for creating an initial phonetic decision tree. Additional terms can then be incorporated into the subset. The enlarged subset can be used to evaluate the phonetic decision tree with the results being categorized as either correctly or incorrectly phonetized. An exception-limited phonetic tree can be generated from the set of correctly phonetized terms. If the termination conditions for the method have been determined to be unsatisfactorily met, then steps of the method can be repeated.

    摘要翻译: 本发明公开了一种训练异常限制语音决策树的方法。 可以选择数据的初始子集,并用于创建初始语音决策树。 然后可以将附加条款纳入子集。 扩大的子集可用于评估语音决策树,其结果被正确地分类或被错误地分组。 可以从正确语音化术语集中生成异常限制语音树。 如果确定方法的终止条件不能满足要求,则可以重复该方法的步骤。

    Object specific language extension interface for a multi-level data structure
    10.
    发明授权
    Object specific language extension interface for a multi-level data structure 失效
    用于多级数据结构的对象专用语言扩展接口

    公开(公告)号:US07464065B2

    公开(公告)日:2008-12-09

    申请号:US11284150

    申请日:2005-11-21

    IPC分类号: G06F17/00 G06N5/02

    CPC分类号: G10L13/04 G06F17/2775

    摘要: A computerized method (300) and software product (200) is provided for querying and modifying a Multi-Level Data Structure (106) stored in a Text-to-Speech (100) engine of a data processing system having a Central Processing Unit (202), a processing system memory (203), and an operating system (201), using an application program written in an interpretive programming language. The method includes the steps of initializing (302) by means of the CPU implementing a set of commands, a data processing environment for processing the application program, processing (306) the application program, where the processing includes identifying a marked command that encapsulates a DPMS program, and upon identifying a marked command, operating (318) on the MLDS using a DPMS interpreter for producing a result from the MLDS, the result available to the application program during execution of the application program.

    摘要翻译: 提供了一种计算机化方法(300)和软件产品(200),用于查询和修改存储在具有中央处理单元的数据处理系统的文本到语音(100)引擎中的多级数据结构(106) 202),处理系统存储器(203)和操作系统(201),使用以解释性编程语言编写的应用程序。 该方法包括以下步骤:借助于实现一组命令的CPU初始化(302),处理应用程序的数据处理环境,处理(306)应用程序,其中处理包括识别封装了一个 DPMS程序,并且在识别标记的命令时,使用DPMS解释器在MLDS上操作(318)以产生来自MLDS的结果,该应用程序在执行应用程序期间可用的结果。