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公开(公告)号：US20120063685A1
公开(公告)日：2012-03-15
申请号：US12799946
申请日：2010-05-05
CPC分类号： G06T3/0012 , H04N1/3873
摘要： The invention relates to a method for reframing an image according to at least one predefined reframing method to obtain a reframed image for which the format ratio is equal to a target format ratio. The method comprises the following steps for: analyzing the image, selecting the predefined reframing method in a set of at least two reframing methods according to the result of the analysis step, and reframing said image using the selected reframing method. The invention also relates to a device for reframing an image.
摘要翻译： 本发明涉及一种根据至少一种预定义的重构方法来重构图像的方法，以获得格式比等于目标格式比的重构图像。 该方法包括以下步骤：分析图像，根据分析步骤的结果，选择一组至少两个重构方法中的预定义重构方法，并使用所选择的重构方法重构所述图像。 本发明还涉及用于重构图像的装置。
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公开(公告)号：US20100259630A1
公开(公告)日：2010-10-14
申请号：US12735073
申请日：2008-12-17
IPC分类号： H04N5/228
CPC分类号： G03B15/00 , G06K9/4671 , H04N5/23293
摘要： A device for helping the capture of images is disclosed that comprises: an analyzer suitable to calculate perceptual interest data for regions of an image having to be captured, a display suitable to overlay on the image at least one graphic indicator indicating the position of at least one region of interest in the image. An image capture device comprising the device for helping the capture of images is further disclosed.
摘要翻译： 公开了一种用于帮助拍摄图像的装置，包括：分析器，其适于计算要被捕获的图像的区域的感知兴趣数据;适合于在图像上覆盖的显示器，至少一个图形指示符指示至少 图像中的一个感兴趣区域。 进一步公开了一种包括用于帮助捕获图像的装置的图像捕获装置。
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公开(公告)号：US20080212897A1
公开(公告)日：2008-09-04
申请号：US12012668
申请日：2008-02-05
IPC分类号： G06K9/32
CPC分类号： G06T3/0012 , G06K9/42 , G06T2207/20132
摘要： The invention relates to an image processing method to generate, from a source image, an image of reduced size whose ratio between the width and the height is equal to a predetermined value, called reduced ratio. It comprises the following steps: selecting one rectangular image part in the source image, and extracting the rectangular image part to generate the reduced image. According to an essential characteristic of the method, if the ratio between the width and height of the rectangular image part, called first ratio, is not equal to the reduced ratio, the width or the height of the rectangular image part is modified before the extraction step according to values of perceptual interest associated with each pixel of the source image in such a manner that the ratio between the width and the height of the modified rectangular image part, called second ratio, is equal to the reduced ratio.
摘要翻译： 本发明涉及一种图像处理方法，用于从源图像生成称为缩小比率的宽度与高度之比等于预定值的尺寸缩小的图像。 它包括以下步骤：在源图像中选择一个矩形图像部分，并提取矩形图像部分以生成缩小图像。 根据该方法的基本特征，如果称为第一比例的矩形图像部分的宽度和高度之比不等于缩小比率，则在提取之前修改矩形图像部分的宽度或高度 根据与源图像的每个像素相关联的感知兴趣的值，按照被称为第二比率的修改的矩形图像部分的宽度和高度之间的比率等于缩小比例来进行步长。
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公开(公告)号：US20060176958A1
公开(公告)日：2006-08-10
申请号：US11324857
申请日：2006-01-04
CPC分类号： H04N19/115 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/172 , H04N19/467 , H04N19/503 , H04N19/63 , H04N19/85
摘要： The invention relates to a method and a device for analysing video images. According to the invention the device comprises: means of obtaining the high-frequency components of an image, means of obtaining a high-frequency image on the basis of the said high-frequency components, means of calculating the variance for each pixel of the said high-frequency image, means of associating a coefficient with each pixel of the image as a function of the said variance, the said coefficient being representative of the visual sensitivity of each pixel for the human eye.
摘要翻译： 本发明涉及一种用于分析视频图像的方法和装置。 根据本发明，该装置包括：获得图像的高频分量的装置，基于所述高频分量获得高频图像的装置，计算所述高频分量的每个像素的方差的装置 高频图像是将系数与图像的每个像素相关联的装置，作为所述方差的函数，所述系数表示人眼每个像素的视觉灵敏度。
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35.发明授权公开(公告)号：US06944230B2
公开(公告)日：2005-09-13
申请号：US10296689
申请日：2001-05-16
CPC分类号： H04N19/86 , H04N19/107 , H04N19/51 , H04N19/61
摘要： The present invention relates to a device and a process for motion-compensated recursive filtering and a corresponding coding system. The device comprises in particular a blockwise motion estimation module [(2)], means [(3)] for determining a recursivity noise level (σrec), a module (4) for calculating a prediction error (ε), a module [(5)] for calculating a recursivity coefficient (α) as a function of the recursivity noise level and of the prediction error, means [(6)] for calculating a motion-compensated image and means of filtering [(7, 8)] producing a weighting, by the recursivity coefficient, of the current input image and of a filtered and motion-compensated image stored previously. The device also comprises means [(3)] for determining an immobility noise level (σimm), and an assembly [(11, 12)] for processing zones constituting partitions of the blocks employed for the motion estimation, zeroing the motion vectors (d) associated with the zones in which the FDs are below a threshold dependent on the immobility noise level.
摘要翻译： 本发明涉及用于运动补偿递归滤波的装置和方法以及相应的编码系统。 该装置特别包括一个用于确定递归噪声电平的装置[（3）]的块状运动估计模块[（2）]，用于计算预测误差的模块（4） （epsilon），用于计算作为递归噪声电平和预测误差的函数的递归系数（α）的模块[（5）]，用于计算运动补偿图像和滤波装置的[（6）] [（7,8）]通过递归系数产生当前输入图像和先前存储的滤波和运动补偿图像的加权。 装置还包括用于确定不动噪声水平的装置[（3）]）和用于处理构成用于运动的块的分区的区域的组件[（11,12）] 估计，与根据不动噪声水平的FD低于阈值的区域相关联的运动矢量（d）归零。
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公开(公告)号：US09678959B2
公开(公告)日：2017-06-13
申请号：US13378726
申请日：2010-06-15
IPC分类号： G06F17/30 , H04N21/2343
CPC分类号： G06F17/3002 , G06F17/30799 , G06F17/30864 , H04N21/23439
摘要： The present invention pertains to a method for selecting a version of a document. The user inputs an identifier of a document at the level of his receiver connected to at least one communication network, and initiates a search request to receive versions of at least one part of this document. The receiver then receives a plurality of versions of the said document. Each version received is analysed by a plurality of evaluation modules so as to calculate an evaluation value for each version received according to a predetermined criterion. The receiver selects for each of the evaluation modules a version of the document having the best evaluation in respect of this criterion, and displays the identifiers of versions having the best evaluations according to each criterion. The user can then easily select the version for reproduction thereof which best meets a criterion. The invention also relates to a receiver implementing the said method.
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37.发明授权公开(公告)号：US08264602B2
公开(公告)日：2012-09-11
申请号：US12586931
申请日：2009-09-30
CPC分类号： H04N5/44591 , G06T3/40 , H04N5/445 , H04N5/57 , H04N7/0102 , H04N7/0122 , H04N7/165 , H04N21/4312 , H04N21/4314 , H04N21/440272 , H04N21/4728 , H04N21/4886 , H04N21/812
摘要： The present invention relates to a method for image processing to generate, from a source image having a predefined width to height ratio, called initial ratio, and an information banner having predefined width to height ratio, called banner ratio, a final image having a width called final and a height called final and for which the width to height ratio, called final ratio, is different from the initial ratio, comprising the following steps: determine a ratio called useful according to the final ratio and the banner ratio, extract from the source image a part of the image having a width to height ratio equal to the useful ratio, and generate, from the part of the image extracted and the information banner, a final image comprising in juxtaposition an image representative of the extracted image part having a width to height ratio equal to the useful ratio and an image representative of the information banner having a width to height ratio equal to the banner ratio.
摘要翻译： 本发明涉及一种用于图像处理的方法，用于从具有预定宽度与高度比的称为初始比的源图像以及称为横幅比的预定宽度与高度比的信息横幅生成具有宽度的最终图像 称为最终和称为最终的高度，称为最终比率的宽度与高度之比不同于初始比例，包括以下步骤：根据最终比例和横幅比确定称为有用的比例，从 源图像具有与有用比率相等的宽高比的图像的一部分，并且从提取的图像的一部分和信息横幅中生成最终图像，该最终图像包括并排表示所提取的图像部分的图像，其具有 宽高比等于有用比例，以及表示宽度与高度之比等于横幅比的信息横幅的图像。
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公开(公告)号：US08094945B2
公开(公告)日：2012-01-10
申请号：US11920457
申请日：2006-05-05
IPC分类号： G06K9/48
CPC分类号： G06T7/0002 , G06K9/036 , G06T7/13 , G06T2207/30168
摘要： The invention is a method for assessing image quality value of a distorted image with respect to a reference image. The method comprises the following steps: computing, for each pixel of the distorted image, at least one quality level with respect to the reference image; adding, for the distorted image, the quality levels associated to each pixel by weighting them by a weight depending on a perceptual interest of the pixel in order to get the image quality value, the weight being lower for a pixel of high perceptual interest.
摘要翻译： 本发明是用于评估相对于参考图像的失真图像的图像质量值的方法。 该方法包括以下步骤：针对失真图像的每个像素计算相对于参考图像的至少一个质量水平; 通过对于每个像素相关联的质量水平，通过加权取决于像素的感知兴趣以获得图像质量值，对于失真的图像，对于高感知兴趣的像素，权重更低。
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公开(公告)号：US20110170599A1
公开(公告)日：2011-07-14
申请号：US12736613
申请日：2009-04-23
申请人： Edouard Francois , Olivier Le Meur , Jerome Vieron
发明人： Edouard Francois , Olivier Le Meur , Jerome Vieron
IPC分类号： H04N7/26
CPC分类号： H04N19/00024 , H04N19/105 , H04N19/136 , H04N19/17 , H04N19/23 , H04N19/577 , H04N19/61
摘要： A method for coding a picture portion of a picture of a video sequence is disclosed, at least one picture of the video sequence being a key picture. The method comprises the following steps: a) calculate a saliency map of the key picture, b) estimate for the picture portion to be coded, at least one motion vector pointing towards a portion of the key picture, c) motion compensate at least one portion of the saliency map using an estimated motion vector to obtain, for said picture portion, at least one portion of the predicted saliency map, and d) code the picture portion according to the saliency level of the portion of the predicted saliency map. The invention also relates to a method for decoding a binary stream, a coder able to code pictures of a video sequence and a decoder of a binary stream.
摘要翻译： 公开了一种用于对视频序列的图像的图像部分进行编码的方法，所述视频序列的至少一个图像是关键图像。 该方法包括以下步骤：a）计算关键图像的显着图，b）估计要编码的图像部分，至少一个指向关键图像的一部分的运动矢量，c）运动补偿至少一个 显影图的部分使用估计的运动矢量，以便为所述图像部分获得预测显着图的至少一部分，以及d）根据预测显着图的部分的显着性级别对图像部分进行编码。 本发明还涉及一种用于对二进制流进行解码的方法，能够对二进制流的视频序列的图像和解码器进行编码的编码器。
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40.发明申请公开(公告)号：US20090274390A1
公开(公告)日：2009-11-05
申请号：US12386900
申请日：2009-04-24
IPC分类号： G06K9/40
CPC分类号： H04N17/00 , G06T7/0002 , G06T2207/10016 , G06T2207/30168 , H04N17/004 , H04N19/89
摘要： The invention is related to a method for video quality assessment.Said method comprises the steps of determining a last spatial distortion by comparing a block of a last frame (I6) of the sequence with a corresponding block of the distorted version of the last frame, determining, in a last-but-one frame, a best-matching block matching said block of the last frame best, determining a last-but-one spatial distortion by comparing the determined best-matching block of the last-but-one frame with a corresponding block of the distorted version of the last-but-one frame, determining a spatio-temporal perceptual distortion value associated with said block using said determined distortions and using the determined spatio-temporal perceptual distortion value for assessing the quality.The spatial distortion's temporal evolution improves video quality assessment.
摘要翻译： 本发明涉及一种用于视频质量评估的方法。 所述方法包括以下步骤：通过将序列的最后一帧（I6）的块与最后帧的失真版本的对应块进行比较来确定最后的空间失真，在最后一帧中确定 最佳匹配块匹配最后一帧的所述块最佳，通过将所确定的最后一帧的最佳匹配块与最后一帧的失真版本的对应块进行比较来确定最后一个空间失真， 使用所述确定的失真来确定与所述块相关联的时空感知失真值，并且使用所确定的时空感知失真值来评估质量。 空间变形的时间演进改进了视频质量评估。
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