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41. 发明公开

EP1695288A1 DEVICE AND METHOD FOR CREATING A SALIENCY MAP OF AN IMAGE 有权
标题翻译：装置和方法，用于在图像中生成映射出尖锐特征
公开(公告)号：EP1695288A1
公开(公告)日：2006-08-30
申请号：EP04804828.4
申请日：2004-12-14
申请人： Thomson Licensing
发明人： LE MEUR, Olivier , THOREAU, Dominique , FRANCOIS, Edouard , LE CALLET, Patrick , BARBA, Dominique
IPC分类号： G06T5/00 , G06T7/20
CPC分类号： G06K9/4623 , G06K9/4652 , G06K9/4671 , G06T5/003 , G06T7/262 , G06T2207/10024
摘要： The invention concerns a device and a method for creating a saliency map of an image. It comprises the steps of: Projection (E1) of said image according to the luminance (A) component and if said image is a color image, according to the luminance (A) component and according to the chrominance components (Cr1, Cr2); Perceptual sub-bands decomposition (E3, T2, T'2, T’’2) of said components (A, Cr1, Cr2) according to the visibility threshold of a human eye; Extraction (E7) of the salient elements of the sub-bands related to the luminance (A) component; Contour enhancement (E8, T7) of said salient elements in each sub-band related to the luminance (A) component; Calculation (T7) of a saliency map from the contour enhancement, for each sub-band related to the luminance (A) component. Creation (T8) of the saliency map as a function of the saliency maps obtained for each sub-band.

42. 发明公开

EP1297710A1 DISPOSITIF ET PROCEDE DE CODAGE VIDEO AVEC FILTRAGE RECURSIF COMPENSE EN MOUVEMENT 有权
标题翻译： FOR递归运动视频编码方法和设备补偿滤波
公开(公告)号：EP1297710A1
公开(公告)日：2003-04-02
申请号：EP01981928.3
申请日：2001-05-16
申请人： Thomson Licensing S.A.
发明人： LE MEUR, Olivier , BABONNEAU, Jean-Yves , MORONTA, Juan , TOUCHAIS, Dominique
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/107 , H04N19/51 , H04N19/61
摘要： The invention concerns a device and a method for motion-compensated filtering and a corresponding coding system. The device comprises in particular a module estimating motions by block matching (2), means for determining (3) a recursivity noise level (σrec), a module for calculating (4) a prediction error (ε), a module for computing (5) a recursivity coefficient (α) on the basis of the recursivity noise level and the prediction error, means for calculating (6) a motion-compensated image and filtering means (7, 8) producing a weight with the recursivity coefficient, of the current input image and a previously stored filtered and motion-compensated image. The device further comprises means for determining (3) an immobility noise level (σimm), and an assembly for processing (11, 12) zones constituting the partitions of the blocks used for motion estimation, resetting the motion vectors (d) associated with the zones wherein the frame differences are less than a threshold function of the immobility noise level.

43. 发明授权

EP1867174B1 METHOD FOR LOCALLY ADJUSTING A QUANTIZATION STEP 有权
标题翻译：方法局部调整量化的
公开(公告)号：EP1867174B1
公开(公告)日：2016-05-04
申请号：EP06708786.6
申请日：2006-03-16
申请人： Thomson Licensing
发明人： HUGUENEL, Lila , THOREAU, Dominique , LE MEUR, Olivier
IPC分类号： H04N19/60 , H04N19/124 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/192
CPC分类号： H04N19/192 , H04N19/124 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60

44. 发明授权

EP1836682B1 DEVICE AND METHOD FOR CREATING A SALIENCY MAP OF AN IMAGE 有权转让
标题翻译：创建具有特A MAP装置和方法特征的图像
公开(公告)号：EP1836682B1
公开(公告)日：2011-05-25
申请号：EP06707685.1
申请日：2006-01-10
申请人： Thomson Licensing
发明人： LE MEUR, Olivier , THOREAU, Dominique , SALMON, Philippe , BARBA, Dominique , LE CALLET, Patrick
IPC分类号： G06T7/20
CPC分类号： G06K9/4671 , G06K9/4623 , G06K9/4652 , G06K9/629 , G06T7/262
摘要： The invention concerns a method for creating a saliency map of an image. It comprises the steps of an image comprising the step of hierarchical decomposition of the image into frequential sub-bands, According to the invention, the method comprises the steps of - movement estimation between the current image (I(t)) and a preceding image (I(t-nT)) calculated from the decomposition into frequential sub-bands, estimating a dominant movement for the image and a local movement for each pixel of the current image, - creation of a temporal saliency map obtained from the global and local movement estimation.
摘要翻译：图像中的显着点的检测使能的进一步的步骤的改善：如编码或图像索引，水印，视频质量估计。该方法依赖于factthat模型完全基于人类视觉系统（HVS）上：如早期视觉特征的计算，并且这些方法计算用于考虑到运动和眼睛的速度的视频图像的显着图。

45. 发明公开

EP2174500A2 VIDEO INDEXING METHOD, AND VIDEO INDEXING DEVICE 审中-公开
标题翻译：视频索引方法以及动态图像分度装置
公开(公告)号：EP2174500A2
公开(公告)日：2010-04-14
申请号：EP08761351.9
申请日：2008-06-25
申请人： Thomson Licensing
发明人： FABRE, Sylvain , SOCHARD, Régis , LAGALAYE, Pierre Laurent , LE MEUR, Olivier , GUILLOTEL, Philippe , VERMEULEN, Samuel
IPC分类号： H04N7/26 , H04N7/46 , G06K9/20 , H04N7/24 , H04N5/445
CPC分类号： H04N21/4728 , H04N19/17 , H04N19/59 , H04N21/4402
摘要： The invention relates to a method and a device for indexing a coded video data stream. According to the invention,the video data stream comprises information relative to the location of regions of interest of each picture, said method comprises steps of: reception (T1) of coded video stream, recording the coded video stream on a recording support, decoding (T2) location information of regions of interest, selection (T3) of a region of interest per picture, decoding (T3) of video data, selecting (T4) a predetermined number of regions of interest for the video data stream from among the regions of interest selected per picture, recording (T6) of the selected regions of interest.

46. 发明公开

EP2077527A1 Method for assessing image quality 审中-公开
标题翻译： Verfahren zur Bestimmung derBildqualität
公开(公告)号：EP2077527A1
公开(公告)日：2009-07-08
申请号：EP08300006.7
申请日：2008-01-04
申请人： Thomson Licensing
发明人： NINASSI, Alexandre , LE MEUR, Olivier , LE CALLET, Patrick , BARBA, Dominique
IPC分类号： G06T7/00
CPC分类号： G06T7/001 , G06T2207/20064 , G06T2207/30108 , G06T2207/30168
摘要： The invention relates to a method for assessing image quality between a reference image and an impaired image. The method comprises the steps of:
- subband decomposition (120) of the luminance component of the reference image into N subbands, called reference subbands and of the luminance component of the impaired image into N subbands, called impaired subbands;
- errors computation (150, 160) from the reference subbands and from the impaired subbands; and
- pooling (170) the computed the errors.
According to the invention, the subband decomposition is based on a wavelet transform adapted to decompose each of the luminance components into L levels of decomposition, with L a positive integer determined as a function of the image height and of the distance of visualization.
摘要翻译：本发明涉及一种用于评估参考图像和受损图像之间的图像质量的方法。该方法包括以下步骤：将被称为受损子带的参考图像的亮度分量的子带分解（120）分解为N个子带，被称为参考子带，并将受损图像的亮度分量分解成N个子带; - 来自参考子带和受损子带的误差计算（150,160）; 和 - 池（170）计算出的错误。根据本发明，子带分解基于适于将每个亮度分量分解成L分解水平的小波变换，其中L是作为图像高度和可视化距离的函数确定的正整数。

47. 发明公开

EP1985124A1 PROCESS FOR CODING IMAGES USING INTRA PREDICTION MODE 有权转让
标题翻译： PROCESS FOR图像编码帧内预测
公开(公告)号：EP1985124A1
公开(公告)日：2008-10-29
申请号：EP07704604.3
申请日：2007-02-15
申请人： Nagra Thomson Licensing
发明人： THOREAU, Dominique , LE MEUR, Olivier , ORHAND, Anita , PORTA, Leonard
IPC分类号： H04N7/34
CPC分类号： H04N19/105 , H04N19/11 , H04N19/137 , H04N19/176 , H04N19/523 , H04N19/593 , H04N19/61
摘要： The process is characterized in that the step of intra prediction comprises: a step of motion estimation of a neighbouring part (1) of the current block (a, b, c), which is already coded, within the reconstructed part of the image, to get a correlated part, a step of defining a predicted block according to the correlated part and to the position of the current block regarding the neighbouring part.

48. 发明公开

EP1867174A1 METHOD FOR LOCALLY ADJUSTING A QUANTIZATION STEP 有权
标题翻译：方法局部调整量化的
公开(公告)号：EP1867174A1
公开(公告)日：2007-12-19
申请号：EP06708786.6
申请日：2006-03-16
申请人： Thomson Licensing
发明人： HUGUENEL, Lila , THOREAU, Dominique , LE MEUR, Olivier
IPC分类号： H04N7/30
CPC分类号： H04N19/192 , H04N19/124 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60
摘要： The invention relates to a method of locally adjusting a quantization step for each region of an image with respect to a setpoint quantization step. The method comprises the steps of: - assigning (20), to said region of interest, a first quantization step (QP_ROI_MINj), lower than or equal to said setpoint quantization step (QP*); - determining (22) a second quantization step (QP-POTj) higher than or equal to said setpoint quantization step (QP*) and lower than or equal to a third quantization step (QP_POT_MAXj) such that the number of bits required by the region of interest is lower than the number of bits saved on the potential masking region; and - assigning (22), when such a second quantization step exists, said second quantization step (QP-POTj) to said potential masking region, otherwise assigning said third quantization step (QP_POT_MAXj) to said potential masking region.

49. 发明授权

EP1695288B1 DEVICE AND METHOD FOR CREATING A SALIENCY MAP OF AN IMAGE 有权
标题翻译：装置和方法，用于在图像中生成映射出尖锐特征
公开(公告)号：EP1695288B1
公开(公告)日：2007-05-02
申请号：EP04804828.4
申请日：2004-12-14
申请人： Thomson Licensing
发明人： LE MEUR, Olivier , THOREAU, Dominique , FRANCOIS, Edouard , LE CALLET, Patrick , BARBA, Dominique
IPC分类号： G06T5/00 , G06T7/20
CPC分类号： G06K9/4623 , G06K9/4652 , G06K9/4671 , G06T5/003 , G06T7/262 , G06T2207/10024
摘要： The invention concerns a device and a method for creating a saliency map of an image. It comprises the steps of: Projection (E1) of said image according to the luminance (A) component and if said image is a color image, according to the luminance (A) component and according to the chrominance components (Cr1, Cr2); Perceptual sub-bands decomposition (E3, T2, T'2, T’’2) of said components (A, Cr1, Cr2) according to the visibility threshold of a human eye; Extraction (E7) of the salient elements of the sub-bands related to the luminance (A) component; Contour enhancement (E8, T7) of said salient elements in each sub-band related to the luminance (A) component; Calculation (T7) of a saliency map from the contour enhancement, for each sub-band related to the luminance (A) component. Creation (T8) of the saliency map as a function of the saliency maps obtained for each sub-band.
摘要翻译：本发明涉及一种装置和用于创建图像的显着图的方法。它包括以下步骤：投影（E1）所述图像雅丁亮度（A）分量并且如果所述图像是彩色图像，雅丁亮度（A）成分和雅丁到色度分量（CR1，CR2）感知子波段分解（E3，T2，T“2，T” 2）所述组分（a，CR1，CR2）的雅丁到子的突出元件，提取（E7）一人眼的可见度阈值相关的亮度（A）分量，轮廓增强（E8，T7）频带的所述从轮廓增强，与显着性图的亮度（A）分量，计算（T7）为每个每个子带凸元件子带相关的亮度（A）分量。创作显着图的显着性图获得的每个子带的函数（T8）。

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