专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US5485611A Video database indexing and method of presenting video database index to a user 失效
标题翻译：视频数据库索引和向用户呈现视频数据库索引的方法
公开(公告)号：US5485611A
公开(公告)日：1996-01-16
申请号：US366807
申请日：1994-12-30
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： G06F17/30 , G11B27/024 , G11B27/032 , G11B27/034 , G11B27/11 , G11B27/28 , G11B27/32 , G11B27/34
CPC分类号： G06F17/30811 , G06F17/30843 , G06F17/30858 , G11B27/034 , G11B27/11 , G11B27/28 , G11B27/326 , G11B27/34 , G11B2220/20 , G11B2220/213 , G11B2220/2545 , G11B2220/41 , G11B2220/90 , G11B27/024 , G11B27/032 , Y10S707/99931 , Y10S707/99945
摘要： A computer-implemented method for generating a video database index for indexing a video database comprising a plurality of video frames, the video database index comprising a plurality of index frames, wherein each video frame within the video database has a unique location within the video database. According to a preferred embodiment of the invention, the video frames of the video database are transmitted to a processor. A processor generates the index frames of the video database index in accordance with the amount of change occurring in images depicted by the video frames of the video database. Each of the index frames represents a unique video sequence of a plurality of video sequences that constitute the video database. Each video sequence comprises a sequence of video frames of the video database. Also, each video sequence has a unique location within the video database.
摘要翻译：一种用于生成用于对包括多个视频帧进行索引的视频数据库索引的视频数据库索引的计算机实现的方法，所述视频数据库索引包括多个索引帧，其中所述视频数据库内的每个视频帧在所述视频数据库内具有唯一的位置。根据本发明的优选实施例，视频数据库的视频帧被发送到处理器。处理器根据视频数据库的视频帧所描绘的图像中发生的变化量来生成视频数据库索引的索引帧。每个索引帧表示构成视频数据库的多个视频序列的唯一视频序列。每个视频序列包括视频数据库的视频帧序列。此外，每个视频序列在视频数据库内都有独特的位置。

32. 发明授权

US4816913A Pixel interpolation circuitry as for a video signal processor 失效
标题翻译：像素插值电路，用于视频信号处理器
公开(公告)号：US4816913A
公开(公告)日：1989-03-28
申请号：US121021
申请日：1987-11-16
申请人： Kevin Harney , John M. Keith , David L. Sprague , Brian Astle
发明人： Kevin Harney , John M. Keith , David L. Sprague , Brian Astle
IPC分类号： H04N7/26 , G06F17/17 , H04N7/46 , H04N7/13
CPC分类号： H04N19/59 , G06F17/17
摘要： A processor for expanding a compressed video signal includes a pixel interpolator which interpolates between input pixel values in two dimensions. This interpolator calculates and stores intermediate pixel values which are interpolated in the vertical direction. A pair of these intermediate pixel values are then fed back into the interpolator which performs a horizontal interpolation to produce pixel values that are interpolated in both the horizontal and vertical dimensions. In steady state operation, the horizontal and vertical interpolation operations are alternated to produce a stream of two-dimensionally interpolated values.
摘要翻译：用于扩展压缩视频信号的处理器包括在二维输入像素值之间插值的像素内插器。该内插器计算并存储在垂直方向上插值的中间像素值。然后将一对这些中间像素值反馈到内插器中，该内插器执行水平内插以产生在水平和垂直维度上内插的像素值。在稳态操作中，水平和垂直内插操作被交替以产生二维内插值流。

33. 发明授权

US4587520A Cursor controlled page selection in a video display 失效
标题翻译：视频显示中光标控制的页面选择
公开(公告)号：US4587520A
公开(公告)日：1986-05-06
申请号：US482852
申请日：1983-04-07
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： G06F3/023 , G06F3/048 , H04N7/025 , G09G1/16
CPC分类号： G06F3/04892 , H04N7/0255
摘要： A teletext system in which viewer function selection is accomplished by superposing a cursor on one of the displayed function words. The teletext/videotext receiver includes a ROM for storing page selection control symbols and a RAM for storing symbols and related addresses corresponding to all displayed page selection symbols. The RAM contents are compared with a cursor address signal to identify displayed page selection symbols that are at or near the cursor location. A page selection symbol, thus identified, is transferred from the RAM to the teletext/videotext system decoder as an information selection command in response to depression of a selection key whereby a minimum number of keys provide selection of a virtually unlimited number of system commands and a user may continuously monitor the displayed text while making selections thus reducing selection entry errors. Provision is made for altering the cursor position, shape and/or brightness upon a predetermined condition of proximity of the cursor with respect to a displayed system command symbol to verify the validity of the command to the user and to avoid positional ambiguities of the cursor relative to the displayed symbol.
摘要翻译：一种图文电视系统，其中通过将光标叠加在所显示的功能词之一上来实现观看者功能选择。图文电视/录像机接收机包括用于存储页面选择控制符号的ROM和用于存储对应于所有显示的页面选择符号的符号和相关地址的RAM。将RAM内容与光标地址信号进行比较，以识别在光标位置处或附近的所显示的页面选择符号。如此识别的页选择符号作为响应于按下选择键的信息选择命令从RAM被传送到图文电视/视频文本系统解码器，由此最小数量的键提供对几乎无限数量的系统命令的选择，以及用户可以在进行选择的同时连续地监视所显示的文本，从而减少选择输入错误。提供了在光标相对于显示的系统命令符号的预定接近度的条件下改变光标位置，形状和/或亮度，以验证命令对用户的有效性并避免光标相对的位置模糊到显示的符号。

34. 发明授权

US6020926A Motion estimation block matching speedup 失效
标题翻译：运动估计块匹配加速
公开(公告)号：US6020926A
公开(公告)日：2000-02-01
申请号：US2071
申请日：1998-01-22
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： H04N7/26 , H04N7/32
CPC分类号： H04N19/51
摘要： In a digital video motion estimation compression and decompression system, pixel block-matching is accomplished by comparing pixels in target block regions of high gradients of luminance or hue. A few pixels from low-gradient regions are also preferably used. A mask defining these pixel locations in the target block is created, and the block comparisons with other blocks are based only on the relative values associated with the pixels in these locations. Major computational time savings are accomplished with negligible degradation of image quality.
摘要翻译：在数字视频运动估计压缩和解压缩系统中，通过比较亮度或色调的高梯度的目标块区域中的像素来实现像素块匹配。还优选使用来自低梯度区域的几个像素。创建在目标块中定义这些像素位置的掩码，并且与其他块的块比较仅基于与这些位置中的像素相关联的相对值。主要的计算时间节省是通过图像质量的降低可以忽略不计来实现的。

35. 发明授权

US5590064A Post-filtering for decoded video signals 失效
标题翻译：对经解码的视频信号进行后置滤波
公开(公告)号：US5590064A
公开(公告)日：1996-12-31
申请号：US329548
申请日：1994-10-26
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： G06T9/00 , H04N5/14 , H04N7/15 , H04N7/26 , H04N7/30 , H04N11/04 , G06F7/00 , G06F15/00 , G06K9/40 , H04N11/02
CPC分类号： H04N19/117 , H04N19/134 , H04N19/18 , H04N19/192 , H04N19/86 , H04N11/044 , H04N5/144 , H04N7/15
摘要： Encoded video signals comprise sets of transform coefficients (e.g., DCT coefficients) corresponding to different regions of a video frame. An inverse transform is applied to sets of transform coefficients to generate decoded regions of a decoded video frame. The discontinuities for boundaries between adjacent regions are used to adjust one or more of the transform coefficients. The adjusted sets of transform coefficients are then used to generate filtered regions of a filtered video frame corresponding to the decoded video frame. In a preferred embodiment, the transform coefficients are DCT coefficients and the DC and first two AC DCT coefficients are sequentially adjusted to correct for quantization errors in the encoding process.
摘要翻译：编码的视频信号包括对应于视频帧的不同区域的变换系数集合（例如，DCT系数）。逆变换被应用于变换系数的集合以生成解码视频帧的解码区域。使用相邻区域之间的边界的不连续性来调整一个或多个变换系数。经调整的变换系数集合然后用于产生与解码的视频帧相对应的滤波视频帧的滤波区域。在优选实施例中，变换系数是DCT系数，并且顺序地调整DC和前两个AC DCT系数，以校正编码处理中的量化误差。

36. 发明授权

US5539664A Process, apparatus, and system for two-dimensional caching to perform motion estimation in video processing 失效
标题翻译：用于二维缓存的处理，装置和系统，用于在视频处理中执行运动估计
公开(公告)号：US5539664A
公开(公告)日：1996-07-23
申请号：US262668
申请日：1994-06-20
申请人： Siamack Haghighi , Brian Astle
发明人： Siamack Haghighi , Brian Astle
IPC分类号： G06T7/20 , H04N5/14 , H04N7/26 , G06F17/00
CPC分类号： H04N19/51 , G06T7/2013 , H04N5/145 , G06T2207/10016
摘要： A subset of signals corresponding to a two-dimensional set of signals is stored into an area of computer memory smaller than the two-dimensional set for processing. Additional signals are sequentially stored in the computer memory area and processed until the entire set of signals has been processed. In a preferred embodiment, motion estimation processing is performed by sequentially transmitting video signals corresponding to portions of a search region of a previous frame from off-chip memory and storing the video signals to on-chip memory for comparison with a reference block of a current frame. The invention provides reduced computer memory usage, reduced signal transfer, and more uniform signal transfer in computer-implemented processing, such as motion estimation processing, that involves two-dimensional caching.
摘要翻译：对应于二维信号集合的信号的子集被存储到比用于处理的二维集更小的计算机存储器的区域中。附加信号被顺序地存储在计算机存储器区域中并被处理直到整个信号集合被处理。在优选实施例中，通过从片外存储器依次发送与先前帧的搜索区域的部分相对应的视频信号并将视频信号存储在片上存储器中以与电流的参考块进行比较来执行运动估计处理帧。本发明在涉及二维高速缓存的计算机实现的处理（例如运动估计处理）中提供减少的计算机存储器使用，减少的信号传输和更均匀的信号传送。

37. 发明授权

US5436666A Limited-domain motion estimation/compensation for video encoding/decoding 失效
标题翻译：视频编码/解码的有限域运动估计/补偿
公开(公告)号：US5436666A
公开(公告)日：1995-07-25
申请号：US65577
申请日：1993-05-21
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： G06T9/00 , H04N5/14 , H04N7/36 , H04N7/24
CPC分类号： H04N19/51 , H04N5/145
摘要： Methods and apparatuses for encoding video images using motion estimation and decoding encoded video images using motion compensation, where the motion estimation and/or the motion compensation is limited to subimages of the video images as defined by boundaries. Although motion compensation may not be used to estimate pels using data from the previous image frame that lies across the subimage boundaries, motion compensation may be used to estimate a portion of a block of the image frame being decoded using a region from the previous image frame that abuts a subimage boundary and is smaller than the block. The rest of the block may be estimated either by retaining the corresponding pels from the previous image frame or by replicating the pels from the previous image frame that lie along the subimage boundary.
摘要翻译：使用运动估计和使用运动补偿对编码视频图像进行解码来编码视频图像的方法和装置，其中运动估计和/或运动补偿被限制为由边界定义的视频图像的子图像。虽然运动补偿可能不用于使用来自位于子图像边界之间的先前图像帧的数据来估计像素，但是运动补偿可以用于使用来自先前图像帧的区域来估计正在解码的图像帧的块的一部分它邻接子图像边界并且小于块。可以通过保留来自先前图像帧的相应像素或通过复制来自沿着子图像边界的先前图像帧的像素来估计块的其余部分。

38. 发明授权

US5365552A Buffer fullness indicator 失效
标题翻译：缓冲液充满度指示器
公开(公告)号：US5365552A
公开(公告)日：1994-11-15
申请号：US977501
申请日：1992-11-16
申请人： Brian Astle
发明人： Brian Astle
IPC分类号： H04N7/32 , H04N21/236 , H04N21/24 , H04N21/43 , H04N21/434 , H04N21/44 , H04L7/00
CPC分类号： H04N21/23614 , H04N19/152 , H04N21/2401 , H04N21/4307 , H04N21/4348 , H04N21/44004 , H04N19/50
摘要： The inventive method for indicating the level of buffer fullness of a data receiving device may be applied to editing processes and to general synchronization problems including problems involving clocks running at different speeds. The method of the present invention includes embedding into a transmitted bit stream a signal representing the fullness of the buffer of the receiving device, as calculated by the transmitting device. Thus, the bit stream received by the receiving device periodically includes a signal that indicates how full the transmitter model predicts the receiving buffer is. The receiving device applies a model decoder algorithm to the received bit stream and determines how full the buffer should be at different points for comparison with the periodic indicators.
摘要翻译：用于指示数据接收设备的缓冲器充满度的本发明的方法可以应用于编辑过程和包括涉及以不同速度运行的时钟的问题的一般同步问题。本发明的方法包括：通过发送装置计算，将发送的比特流嵌入表示接收装置的缓冲器的丰满度的信号。因此，由接收设备接收的比特流周期性地包括一个信号，该信号指示发射机模型如何预测接收缓冲器的完整程度。接收设备对接收到的比特流应用模型解码器算法，并确定缓冲器在不同点应该如何满足以与周期性指示符进行比较。

39. 发明授权

US5045853A Method and apparatus for statistically encoding digital data 失效
标题翻译：用于统计编码数字数据的方法和装置
公开(公告)号：US5045853A
公开(公告)日：1991-09-03
申请号：US175915
申请日：1988-03-31
申请人： Brian Astle , Stuart J. Golin
发明人： Brian Astle , Stuart J. Golin
IPC分类号： H03M7/40 , H03M7/42
CPC分类号： H03M7/42
摘要： A method of encoding digital data using a variable-length code is disclosed. Using this method, the data are first transformed so that the values generally correspond to a family of statistical distributions, in this case, negative exponential distributions. The transformed data values are then analyzed to develop parameters describing a particular variable length code. The transformed data values are encoded using this code and the parameter values are concatenated onto the code to aid in the decoding operation.
摘要翻译：公开了使用可变长度码对数字数据进行编码的方法。使用这种方法，数据首先被变换，使得这些值通常对应于一系列统计分布，在这种情况下是负指数分布。然后分析变换的数据值以开发描述特定可变长度码的参数。使用该代码对变换的数据值进行编码，并且将参数值连接到代码上以有助于解码操作。

40. 发明授权

US4827344A Apparatus for inserting part of one video image into another video image 失效
标题翻译：用于将一个视频图像的一部分插入另一个视频图像的装置
公开(公告)号：US4827344A
公开(公告)日：1989-05-02
申请号：US913586
申请日：1986-09-30
申请人： Brian Astle , Gerald D. Ripley
发明人： Brian Astle , Gerald D. Ripley
IPC分类号： H04N5/272
CPC分类号： H04N5/272
摘要： Computer generated video objects may be superimposed over a background video image so as to create the illusion of a single composite scene. The leading edge of an object is detected and for a period of time the object and background video signals are mixed. After that period, only the object video is tranmsitted. Upon detection of the object's trailing edge, the two video signals are again mixed for a period of time. After this latter period, only the background video signal is transmitted until another object's edge is detected.
摘要翻译：计算机生成的视频对象可以叠加在背景视频图像上，以产生单个复合场景的幻觉。检测对象的前沿，并且在一段时间内混合对象和背景视频信号。在那段时间之后，只有对象视频被转移。在检测到对象的后沿时，两个视频信号再次混合一段时间。在后一个周期之后，仅发送背景视频信号直到检测到另一个物体的边缘。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式