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公开(公告)号：US08532177B2
公开(公告)日：2013-09-10
申请号：US11950802
申请日：2007-12-05
摘要： A method of image processing for image conversion, comprises the steps of calculating a difference measure of the difference in pixel values between corresponding blocks of a current image field and a preceding image field, calculating a variability measure of the variability of pixel values from at least one of said corresponding blocks, determining whether the difference measure exceeds the variability measure, and if the difference measure exceeds the variability measure, then setting an inter-image mixing value for each pixel in the corresponding block of the current image field to indicate that the current image field should not be mixed with the preceding image field at that pixel position.
摘要翻译： 一种用于图像转换的图像处理方法，包括以下步骤：计算当前图像场和先前图像场的相应块之间的像素值差异的差异度量，计算来自至少一个像素值的可变性的可变性度量 所述相应块中的一个，确定所述差异度量是否超过所述可变性度量，并且如果所述差异度量超过所述可变性度量，则为所述当前图像字段的相应块中的每个像素设置图像间混合值， 当前图像场不应与该像素位置处的前一图像场混合。
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公开(公告)号：US20080175440A1
公开(公告)日：2008-07-24
申请号：US11949471
申请日：2007-12-03
IPC分类号： G06K9/00
摘要： An image processing apparatus for image conversion comprises first motion detecting means operable to detect motion to a first level of sensitivity; second motion detecting means operable to detect motion to a second level of sensitivity, the second level of sensitivity being of greater sensitivity than the first level of sensitivity so that the second motion detecting means can detect smaller amounts of motion than the first motion detecting means; conversion selection means operable to select respectively either a first conversion process or a second conversion process for a given point in an image dependant upon whether motion is detected at that point or not, and in which the conversion selection means operates independently of the second motion detecting means if the degree of motion within an image or a part thereof detected by the first motion detecting means exceeds a threshold amount.
摘要翻译： 一种用于图像转换的图像处理装置，包括：第一运动检测装置，用于检测运动达到第一敏感度; 第二运动检测装置，其可操作以将运动检测到第二灵敏度水平，所述第二灵敏度级灵敏度比所述第一灵敏度灵敏度高，使得所述第二运动检测装置能够检测比所述第一运动检测装置更少的运动量; 转换选择装置，用于根据是否在该点检测到运动而分别选择图像中的给定点的第一转换处理或第二转换处理，并且其中转换选择装置独立于第二运动检测操作 意味着如果由第一运动检测装置检测到的图像或其部分内的运动程度超过阈值量。
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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：US08212920B2
公开(公告)日：2012-07-03
申请号：US11949300
申请日：2007-12-03
IPC分类号： H04N11/20
摘要： A method of image processing for conversion of an image in a sequence of images comprises the steps of associating pixels of an image with respective motion values indicative of a degree of inter-image motion for each pixel; adjusting the motion value of each pixel based upon the motion value of a secondary pixel found within a first region of a first predetermined size substantially centered upon each respective pixel, said secondary pixel being that whose associated motion value is indicative of the greatest motion of any pixel in the first region; adjusting the motion value of each pixel based upon the motion value of a secondary pixel that lies within a second region of a second predetermined size substantially centered upon each respective pixel, said secondary pixel being that whose associated motion value is indicative of the least motion of any pixel in the second region; categorizing each pixel as a static pixel or a motion pixel according to its respective associated motion value, and then selecting respectively either a first conversion process or a second conversion process for a pixel dependant upon whether that pixel is categorized as a static pixel or a motion pixel.
摘要翻译： 一种用于图像序列转换的图像处理方法包括以下步骤：将图像的像素与表示每个像素的图像间运动程度的各个运动值相关联; 基于在基本上以每个相应像素为中心的第一预定大小的第一区域内发现的次要像素的运动值来调整每个像素的运动值，所述辅助像素是其相关联的运动值指示任何 第一区域的像素; 基于位于基本上位于每个相应像素的第二预定尺寸的第二区域内的次级像素的运动值来调整每个像素的运动值，所述辅助像素是其相关联的运动值表示最小运动的运动值 第二区域中的任何像素; 根据其相应的运动值将每个像素分类为静态像素或运动像素，然后根据该像素是否被分类为静态像素还是运动分别选择针对像素的第一转换处理或第二转换处理 像素。
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公开(公告)号：US08055094B2
公开(公告)日：2011-11-08
申请号：US11949471
申请日：2007-12-03
摘要： An image processing apparatus includes a first motion detector, a second motion detector and a conversion selector. The first motion detector detects motion to a first level of spatial frequency sensitivity. The second motion detector detects motion to a second level of spatial frequency sensitivity greater than the first level of spatial frequency sensitivity to detect smaller amounts of motion than the first motion detector. The conversion selector selects contributions from at least one of a first conversion process and a second conversion process for a given point in an image dependant upon whether motion is detected by the first motion detector at the given point or not. The conversion selector operates independently of the second motion detector if a degree of motion within the image or a part thereof including the given point detected by the first motion detector does not exceed a threshold amount.
摘要翻译： 图像处理装置包括第一运动检测器，第二运动检测器和转换选择器。 第一运动检测器将运动检测到第一水平的空间频率灵敏度。 第二运动检测器将运动检测到大于空间频率灵敏度的第一水平的空间频率灵敏度的第二水平，以检测比第一运动检测器更少的运动量。 转换选择器根据第一运动检测器在给定点是否检测到运动是否从图像中的给定点的第一转换处理和第二转换处理中的至少一个选择贡献。 如果包括由第一运动检测器检测到的给定点的图像或其部分内的运动程度不超过阈值量，则转换选择器独立于第二运动检测器操作。
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公开(公告)号：US20080165279A1
公开(公告)日：2008-07-10
申请号：US11949358
申请日：2007-12-03
IPC分类号： H04N7/01
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：US20080152259A1
公开(公告)日：2008-06-26
申请号：US11949267
申请日：2007-12-03
IPC分类号： G06K9/36
CPC分类号： H04N7/012 , G06T7/223 , H04N5/213 , H04N7/0137 , H04N7/0145
摘要： An image processing apparatus for image conversion comprises calculating means operable to calculate a first metric for a selected pixel position in a current image field, the first metric being the difference between a directly preceding image field and a spatially interpolated version of the current image field at the selected pixel position; categorising means operable to categorise, on the basis of the first metric, whether the selected pixel in the current image field provides either an indeterminate, unreliable or reliable basis for the determination of apparent motion at that selected pixel position in the current image field; and adjustment means operable to adjust a parameter associated with the selected pixel depending upon the categorisation made.
摘要翻译： 一种用于图像转换的图像处理装置包括计算装置，可操作以计算当前图像场中所选像素位置的第一度量，第一度量是当前图像场的直接在前图像场和空间内插版本之间的差， 所选择的像素位置; 分类装置可操作以基于第一度量来分类当前图像场中的所选像素是否为确定当前图像场中所选择的像素位置处的视差运动提供不确定的，不可靠的或可靠的基础; 以及调节装置，用于根据所进行的分类来调整与所选择的像素相关联的参数。
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公开(公告)号：US20080136965A1
公开(公告)日：2008-06-12
申请号：US11949300
申请日：2007-12-03
IPC分类号： H04N7/01
摘要： A method of image processing for conversion of an image in a sequence of images comprises the steps of associating pixels of an image with respective motion values indicative of a degree of inter-image motion for each pixel; adjusting the motion value of each pixel based upon the motion value of a secondary pixel found within a first region of a first predetermined size substantially centred upon each respective pixel, said secondary pixel being that whose associated motion value is indicative of the greatest motion of any pixel in the first region; adjusting the motion value of each pixel based upon the motion value of a secondary pixel that lies within a second region of a second predetermined size substantially centred upon each respective pixel, said secondary pixel being that whose associated motion value is indicative of the least motion of any pixel in the second region; categorising each pixel as a static pixel or a motion pixel according to its respective associated motion value, and then selecting respectively either a first conversion process or a second conversion process for a pixel dependant upon whether that pixel is categorised as a static pixel or a motion pixel.
摘要翻译： 一种用于图像序列转换的图像处理方法包括以下步骤：将图像的像素与表示每个像素的图像间运动程度的各个运动值相关联; 基于在基本上以每个相应像素为中心的第一预定大小的第一区域内发现的次要像素的运动值来调整每个像素的运动值，所述辅助像素是其相关联的运动值指示任何 第一区域的像素; 基于位于基本上位于每个相应像素的第二预定尺寸的第二区域内的次级像素的运动值来调整每个像素的运动值，所述辅助像素是其相关联的运动值表示最小运动的运动值 第二区域中的任何像素; 根据其相应的运动值将每个像素分类为静态像素或运动像素，然后分别选择依赖于该像素被分类为静态像素还是运动的像素的第一转换处理或第二转换处理 像素。
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公开(公告)号：US06760377B1
公开(公告)日：2004-07-06
申请号：US09548446
申请日：2000-04-13
IPC分类号： H04B166
CPC分类号： H04N21/23424 , H04N19/114 , H04N19/115 , H04N19/124 , H04N19/14 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/177 , H04N19/40 , H04N19/625 , H04N21/23406 , H04N21/44016
摘要： Decoders A and B decode MPEG-2 bitstreams A and B. A switch (S1) switches from decoded stream A to decoded stream B to achieve a splice. The resulting bitstream is re-encoded in an encoder 4. A new GOP is defined beginning at the splice. The new GOP is defined by picture type decision rules which may the effect of changing the GOP compared to the GOPs of streams A and B. The new GOP provides a prediction of the position in stream B where the occupancy value of stream C should coincide with that of B. A target for the new number of bits in the new GOP is calculated dependent on the difference between the occupancy value of stream C at the splice and a prediction of the occupancy of stream B at the predicted position. The occupancy value of stream C is controlled in accordance with the target so that it tends towards the occupancy value of stream B at the predicted position.
摘要翻译： 解码器A和B解码MPEG-2比特流A和B.开关（S1）从解码流A切换到解码流B以实现拼接。 所得到的比特流在编码器4中重新编码。从拼接开始定义新的GOP。 新GOP由图像类型决定规则定义，其可以与流A和B的GOP相比改变GOP的效果。新GOP提供流B中的位置的预测，其中流C的占用值应与 根据接合时的流C的占有率与预测位置处的流B的占有率的预测值，来计算新GOP中新位数的目标。 流C的占有率根据目标进行控制，使其趋向于在预测位置处的流B的占有值。
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