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公开(公告)号：US06757333B2
公开(公告)日：2004-06-29
申请号：US09728810
申请日：2000-12-01
申请人： Nicholas Ian Saunders , Robert Webb
发明人： Nicholas Ian Saunders , Robert Webb
IPC分类号： H04N712
CPC分类号： H04N19/40 , H04N19/115 , H04N19/124 , H04N19/149 , H04N19/152 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/51 , H04N19/61 , H04N21/431
摘要： Video signal processing apparatus in which at least two input video signals are combined in proportions determined by a pixel key signal to generate an output video signal for compression, at least one of the input video signals each having respective associated compression parameters from a data compression process applied to that video signal; comprises: means for detecting an average pixel key signal value across each of a plurality of blocks of pixels of the output video signal; and means for comparing the average pixel key signal values with first and second thresholds, the first threshold representing a pixel key signal value corresponding to combination having primarily one of the video signals, and the second threshold representing a pixel key signal value corresponding to combination having primarily the other of the video signals; in which: if the average pixel key signal value for a block lies between the first and second thresholds, that block of the output video signal is compressed using newly derived compression parameters; and if the average pixel key signal value for a block lies outside the range defined by the first and second thresholds, the compression parameters associated with the corresponding block of the input video signals are made available for re-use in compression of that block of the output video signal.
摘要翻译： 视频信号处理装置，其中至少两个输入视频信号以由像素键信号确定的比例组合以产生用于压缩的输出视频信号，至少一个输入视频信号各自具有来自数据压缩处理的相应的压缩参数 应用于该视频信号; 包括：用于检测输出视频信号的多个像素块中的每一个上的平均像素键信号值的装置; 以及用于将平均像素键信号值与第一和第二阈值进行比较的方法，所述第一阈值表示对应于主要具有所述视频信号的组合的像素键信号值，并且所述第二阈值表示对应于主要组合的像素键信号值 视频信号中的另一个;其中：如果块的平均像素键信号值位于第一阈值和第二阈值之间，则使用新导出的压缩参数来压缩输出视频信号的块; 并且如果块的平均像素键信号值位于由第一阈值和第二阈值限定的范围之外，则与输入视频信号的相应块相关联的压缩参数可用于在输出的该块的压缩中重新使用 视频信号。
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2.发明授权Video signal processing in which first video information and additional video information are combined to produce frames that are encoded with different picture qualities for edge and non-edge regions 失效视频信号处理，其中第一视频信息和附加视频信息被组合以产生用于边缘和非边缘区域以不同图像质量编码的帧公开(公告)号：US06567128B1
公开(公告)日：2003-05-20
申请号：US09653036
申请日：2000-09-01
申请人： Robert Webb , Nicholas Ian Saunders
发明人： Robert Webb , Nicholas Ian Saunders
IPC分类号： H04N974
CPC分类号： H04N19/40 , H04N19/115 , H04N19/126 , H04N19/149 , H04N19/152 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/46 , H04N19/467 , H04N19/51 , H04N19/61
摘要： A video signal processor comprises a first input for receiving a compressed first video signal including parameters associated with the frames of the signal and relating to the compression. A decoder decodes the compressed first video signal while preserving the parameters in association with the frames. A second input receives additional video information to be combined with the first video information. A combiner superimposes the additional video information on the first video information. An encoder encodes the combined video information. The encoder reuses the preserved parameters for encoding at least parts of the combined information which are not derived from the superimposed video information.
摘要翻译： 视频信号处理器包括用于接收压缩的第一视频信号的第一输入端，该压缩的第一视频信号包括与该信号的帧相关并且与该压缩有关的参数 解码器解码压缩的第一视频信号，同时保留与帧相关联的参数。 第二输入接收与第一视频信息组合的附加视频信息。 组合器将附加视频信息叠加在第一视频信息上。 编码器对组合的视频信息进行编码。 编码器重新使用保存的参数，用于对不是从叠加的视频信息导出的组合信息的至少一部分进行编码。
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公开(公告)号：US06570923B2
公开(公告)日：2003-05-27
申请号：US09727286
申请日：2000-11-30
申请人： Nicholas Ian Saunders , Robert Webb
发明人： Nicholas Ian Saunders , Robert Webb
IPC分类号： H04N712
CPC分类号： H04N19/40 , H04N19/51 , H04N21/431
摘要： Video signal processing apparatus in which at least first and second input video signals are combined to generate an output compressed video signal, the first and second video signals each having respective associated motion vectors from a data compression process applied to the video signals; comprises: means for establishing a set of the motion vectors associated with the first and second video signals which can potentially be re-used in compressing the output compressed video signal; and means for testing the set of motion vectors, the testing means being operable: (c) to define, with respect to reference images referred to by the motion vectors under test, a first border region of a predetermined width surrounding those parts of the reference images derived in part from the first video signal, and a second border region of a predetermined width surrounding those parts of the reference images derived in part from the second video signal; and (d) to test whether motion vectors of the set which are associated with parts of each video signal refer either to image areas derived in part from the other video signal, to the first border region or to the second border region; in which any motion vectors of the set being found by the testing means to refer to images areas derived to at least the predetermined degree from the other input video signal, the first border region or the second border region are not used in the compression of the output compressed video signal.
摘要翻译： 视频信号处理装置，其中组合至少第一和第二输入视频信号以产生输出压缩视频信号，所述第一和第二视频信号各自具有来自应用于视频信号的数据压缩处理的相应的相关联的运动矢量; 包括：用于建立与第一和第二视频信号相关联的一组运动矢量的装置，其可以潜在地在压缩输出压缩视频信号中被重新使用; 以及用于测试所述运动矢量集合的方法，所述测试装置可操作：（c）相对于被测运动矢量所参考的参考图像来定义围绕参考图像的那些部分的预定宽度的第一边界区域 部分地从第一视频信号导出，以及围绕部分地从第二视频信号导出的参考图像的那些部分的预定宽度的第二边界区域; 和（d）测试与每个视频信号的部分相关联的集合的运动矢量是否指向从另一视频信号部分导出的图像区域到第一边界区域或第二边界区域;其中任何 由测试装置找到的集合的运动矢量指的是从另一输入视频信号至少导出预定程度的图像区域，第一边界区域或第二边界区域不用于压缩输出压缩视频 信号。
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公开(公告)号：US06724436B1
公开(公告)日：2004-04-20
申请号：US09548196
申请日：2000-04-13
申请人： Nicholas Ian Saunders , Robert Webb
发明人： Nicholas Ian Saunders , Robert Webb
IPC分类号： H04N718
摘要： A method of mounting a volume from a tape medium on a tape drive apparatus. The method reads a bar-code indicating the volume from a tape cartridge, attaches the tape cartridge to a tape drive, and detects the current track position on the basis of a longitudinal track. The method then determines whether a beginning volume label or a last used area volume label is nearer to the current track position, reads the nearer volume label from the tape medium, confirms the volume by comparing the nearer volume label with the bar-code, and mounts the volume onto the tape drive.
摘要翻译： 将卷从磁带介质安装到磁带驱动装置上的方法。 该方法读取指示来自带盒的体积的条形码，将带盒附接到磁带驱动器，并且基于纵向轨道检测当前轨迹位置。 然后，该方法确定开始卷标或最后使用区域卷标是否更靠近当前轨道位置，从磁带介质读取更近的卷标，通过将较近的卷标与条形码进行比较来确认卷，以及 将卷安装到磁带机上。
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公开(公告)号：US06643325B2
公开(公告)日：2003-11-04
申请号：US09728296
申请日：2000-12-01
申请人： Robert Webb , Nicholas Ian Saunders
发明人： Robert Webb , Nicholas Ian Saunders
IPC分类号： H04N712
CPC分类号： H04N19/40 , H04N19/115 , H04N19/124 , H04N19/136 , H04N19/149 , H04N19/15 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/48 , H04N19/51 , H04N19/513 , H04N19/60
摘要： Video signal processing apparatus in which at least two input video signals are combined in proportions determined by a pixel key signal to generate an output video signal for compression, at least one of the input video signals each having respective associated compression parameters from a data compression process applied to that video signal. The apparatus functions to estimate the quantity of data which will be produced by compression of a current image of the output video signal, compares the detected quantify of data with a target quantity of data, to determine whether a data overflow is expected, and in the event that a data overflow is expected, determine which blocks of the output video signal can be compressed by re-using compression parameters from corresponding block of one of the input video signals.
摘要翻译： 视频信号处理装置，其中至少两个输入视频信号以由像素键信号确定的比例组合以产生用于压缩的输出视频信号，至少一个输入视频信号各自具有来自数据压缩处理的相应的压缩参数 应用于该视频信号。 该装置用于估计通过压缩输出视频信号的当前图像将产生的数据量，将检测到的数据量与目标数据量进行比较，以确定是否期望数据溢出，并且在 预期数据溢出的事件，通过重新使用来自输入视频信号之一的相应块的压缩参数来确定输出视频信号的哪个块可以被压缩。
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公开(公告)号：US08243196B2
公开(公告)日：2012-08-14
申请号：US11949358
申请日：2007-12-03
IPC分类号： H04N11/20
CPC分类号： H04N7/012 , H04N7/0137
摘要： A method of image processing for converting interlaced images to progressive scan images comprises the steps of generating a motion dependent mixing value for determining the extent to which a preceding image field should be mixed with a current intra-field interpolated image field at a given pixel position, comparing the generated mixing value with a preceding historical mixing value, and if the comparison indicates an increase in motion, using the generated mixing value; otherwise, if the comparison indicates a decrease in motion, temporally filtering the generated mixing value prior to use.
摘要翻译： 一种用于将隔行扫描图像转换成逐行扫描图像的图像处理方法包括以下步骤：产生运动相关混合值，用于确定先前图像场应该与给定像素位置处的当前场内插值图像场混合的程度 将所生成的混合值与先前的历史混合值进行比较，并且如果比较表示运动的增加，则使用产生的混合值; 否则，如果比较指示运动的减少，则在使用之前临时过滤所产生的混合值。
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公开(公告)号：US08086075B2
公开(公告)日：2011-12-27
申请号：US11949267
申请日：2007-12-03
CPC分类号： H04N7/012 , G06T7/223 , H04N5/213 , H04N7/0137 , H04N7/0145
摘要： An image processing method for image conversion by combining two or more source values based on a mixing parameter to generate an output pixel value. A metric is calculated for a selected pixel at a given image field based on the directly preceding image field and a spatially interpolated version of the given image field at the selected pixel position. The selected pixel is categorized based on the metric as providing an indeterminate, unreliable, or reliable basis for a determination of motion at that pixel. The mixing parameter for the selected pixel is adjusted based on the categorization of the pixel.
摘要翻译： 一种通过基于混合参数组合两个或多个源值以产生输出像素值的图像转换的图像处理方法。 基于直接在前的图像场和在所选择的像素位置处的给定图像场的空间内插版本，为给定图像场处的所选像素计算度量。 所选择的像素基于度量被分类为提供用于确定该像素处的运动的不确定的，不可靠的或可靠的基础。 基于像素的分类来调整所选像素的混合参数。
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公开(公告)号：US06812865B2
公开(公告)日：2004-11-02
申请号：US10400425
申请日：2003-03-27
IPC分类号： H03M734
CPC分类号： H04N19/115 , H04N19/119 , H04N19/136 , H04N19/14 , H04N19/142 , H04N19/172 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/198 , H04N19/61
摘要： A data compression apparatus includes a source detection arrangement for detecting whether or not the input data is source data that has not undergone a previous compression/decompression cycle; a data quantity generator, responsive to the source detection arrangement, for setting a desired data output quantity for the compressed data, the desired data quantity having a first value for source input data and a second, higher, value for non-source input data; a target allocator for allocating a target data quantity to respective subsets of the input data in dependence upon the desired output data quantity, the target data quantities together providing a desired output data quantity; and a data compression arrangement for compressing each subset of the input data in accordance with its respective target data quantity.
摘要翻译： 数据压缩装置包括：源检测装置，用于检测输入数据是否是未经过先前压缩/解压周期的源数据; 数据量发生器，响应于源检测装置，用于为压缩数据设置期望的数据输出量，具有用于源输入数据的第一值和对于非源输入数据的第二较高值的期望数据量; 目标分配器，用于根据期望的输出数据量将目标数据量分配给输入数据的相应子集，目标数据量一起提供期望的输出数据量; 以及数据压缩装置，用于根据其各自的目标数据量来压缩输入数据的每个子集。
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公开(公告)号：US20120229665A1
公开(公告)日：2012-09-13
申请号：US13405827
申请日：2012-02-27
摘要： Image processing apparatus comprises a demosaic processor for receiving a video signal comprising pixel data from an array of photosensors each having a respective color filter so as to restrict the sensitivity of that photosensor to a primary color range selected from a set of three or more primary color ranges, the array being such that the photosensors in alternate rows are sensitive to a first primary color range, and photosensors in intervening rows are sensitive to the other primary color ranges. The pixel data including pixel data from a first subset of the rows sensitive to the first primary color range, the first subset being the same from image to image of the video signal; and pixel data from a second subset of the rows of photosensors sensitive to the other primary color ranges, the second subset changing from image to image of the video signal.
摘要翻译： 图像处理装置包括：去马赛克处理器，用于从每个具有相应滤色器的光电传感器阵列接收包括像素数据的视频信号，以便将该光传感器的灵敏度限制在从三组或更多原色组合中选择的主要颜色范围 范围，使得交替行中的光电传感器对第一原色范围敏感，并且中间行中的光电传感器对其他原色范围敏感。 所述像素数据包括来自对所述第一原色范围敏感的行的第一子集的像素数据，所述第一子集与所述视频信号的图像相同; 以及来自对其他原色范围敏感的光敏传感器行的第二子集的像素数据，第二子集从视频信号的图像变为图像。
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公开(公告)号：US07227900B2
公开(公告)日：2007-06-05
申请号：US10400808
申请日：2003-03-27
IPC分类号： H04N7/12
CPC分类号： H04N19/895 , H04N19/176 , H04N19/593 , H04N19/85 , H04N19/89
摘要： An encoding apparatus operable to encode video data representing successive images, each image including a plurality of pixels. The apparatus includes a differential encoder arranged to encode each image as one or more predetermined image regions. Each image is being encoded as a reference value and at least one differential pixel value. The differential pixel value(s) are derived in dependence on the reference value and/or other differential pixel value(s) in accordance with an order of encoding dependency; in which, for each image region, the differential encoder is operable in a first encoding mode for a first subset of the images to encode the image region using a first order of encoding dependency and in a second encoding mode for a second, different, subset of the images to encode the image region using a second, different, order of encoding dependency. The first and second subsets of images are arranged with respect to one another so that, from image to image, each image region is encoded in accordance with a predetermined sequence of orders of encoding dependency.
摘要翻译： 一种编码装置，可操作用于对表示连续图像的视频数据进行编码，每个图像包括多个像素。 该装置包括一个差分编码器，用于将每个图像编码为一个或多个预定图像区域。 每个图像被编码为参考值和至少一个差分像素值。 根据编码依赖性的顺序，根据参考值和/或其他差分像素值导出差分像素值; 其中，对于每个图像区域，所述差分编码器可以以所述图像的第一子集的第一编码模式操作，以使用编码依赖性的第一顺序对所述图像区域进行编码，并且在第二编码模式中针对第二不同的子集 的图像以使用第二，不同的编码依赖性顺序对图像区域进行编码。 图像的第一和第二子集相对于彼此布置，使得从图像到图像，每个图像区域根据编码依赖性的预定顺序序列被编码。
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