专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2015197436A1 METHOD AND DEVICE FOR PROCESSING IMAGES 审中-公开
标题翻译：用于处理图像的方法和装置
公开(公告)号：WO2015197436A1
公开(公告)日：2015-12-30
申请号：PCT/EP2015/063523
申请日：2015-06-17
申请人： THOMSON LICENSING
发明人： BOITARD, Ronan , POULI, Tania , THOREAU, Dominique , COZOT, Rémi , BOUATOUCH, Kadi
IPC分类号： H04N19/615 , H04N19/36 , H04N19/117 , H04N19/14 , H04N19/187 , H04N19/169 , H04N19/86 , H04N19/186
CPC分类号： H04N19/521 , H04N19/117 , H04N19/14 , H04N19/172 , H04N19/182 , H04N19/187 , H04N19/1883 , H04N19/31 , H04N19/36 , H04N19/615 , H04N19/86
摘要： A method and device for processing LDR images of a video sequence to improve image quality. The method comprises temporally decomposing successive HDR frames of a video sequence and the corresponding LDR frames and performing a comparison between the HDR and LDR frequency sub-bands. A current LDR image can then be modified on the basis of a comparison between the frequency sub-bands.
摘要翻译：一种用于处理视频序列的LDR图像以提高图像质量的方法和装置。该方法包括在时间上分解视频序列的连续HDR帧和对应的LDR帧，并且执行HDR和LDR频率子带之间的比较。然后可以基于频率子带之间的比较来修改当前的LDR图像。

2. 发明申请

WO2014187808A1 METHOD FOR TONE-MAPPING A VIDEO SEQUENCE 审中-公开
标题翻译：用于色调映射视频序列的方法
公开(公告)号：WO2014187808A1
公开(公告)日：2014-11-27
申请号：PCT/EP2014/060313
申请日：2014-05-20
申请人： THOMSON LICENSING
发明人： BOITARD, Ronan , THOREAU, Dominique , BOUATOUCH, Kadi , COZOT, Rémi
IPC分类号： G06T5/00
CPC分类号： H04N5/145 , G06T5/007 , G06T2207/10016 , G06T2207/20012 , H04N5/57
摘要： The present invention generally relates to a method and device for tone- mapping a video sequence in which a local tone-mapping operator is applied on each frame of the video sequence to be tone-mapped. The method is characterized in that the spatial neighborhoods used by said local-tone- mapping operator are determined on a temporal-filtered version (L TF ) of the frame to be tone-mapped (F0).
摘要翻译：本发明一般涉及一种用于对视频序列进行色调映射的方法和装置，其中将本地色调映射运算符应用于要进行色调映射的视频序列的每个帧上。该方法的特征在于，所述局部色调映射运算符使用的空间邻域是在要被色调映射的帧（F0）的时间滤波版本（LTF）上确定的。

3. 发明申请

WO2015078843A1 METHOD AND DEVICE FOR QUANTISING THE FLOATING VALUE OF A PIXEL IN AN IMAGE 审中-公开
标题翻译：用于量化图像中像素浮动值的方法和装置
公开(公告)号：WO2015078843A1
公开(公告)日：2015-06-04
申请号：PCT/EP2014/075482
申请日：2014-11-25
申请人： THOMSON LICENSING
发明人： BOITARD, Ronan , THOREAU, Dominique , BOUATOUCH, Kadi , COZOT, Remi , SERRE, Catherine
IPC分类号： G06T5/00 , H04N19/85
CPC分类号： H04N19/124 , G06T5/002 , G06T5/007 , G06T2207/10016 , G06T2207/20182 , G06T2207/20208 , H04N19/157 , H04N19/176 , H04N19/61
摘要： The invention relates to a method and device for quantising the floating value of a pixel of an image by rounding either to a lesser whole number, to a greater whole number, or to the whole number closest to this floating value. The method is characterised in that the selection of rounding this floating value is determined based on a test value.
摘要翻译：本发明涉及一种用于通过将较小整数舍入到更大的整数或最接近该浮动值的整数来量化图像的像素的浮动值的方法和装置。该方法的特征在于，基于测试值确定舍入该浮动值的选择。

4. 发明申请

WO2014131755A1 METHOD AND DEVICE FOR SELECTING AN IMAGE DYNAMIC RANGE CONVERSION OPERATOR 审中-公开
标题翻译：用于选择图像动态范围转换操作器的方法和装置
公开(公告)号：WO2014131755A1
公开(公告)日：2014-09-04
申请号：PCT/EP2014/053625
申请日：2014-02-25
申请人： THOMSON LICENSING
发明人： BOITARD, Ronan , THOREAU, Dominique , BOUATOUCH, Kadi , COZOT, Rémi
IPC分类号： G06T5/00 , H04N19/154 , H04N19/147
CPC分类号： G06T5/007 , G06K9/4661 , G06T2207/20208 , H04N19/147 , H04N19/154
摘要： The invention relates to a method for selecting an image dynamic range conversion operator from among a set of image dynamic range conversion operators by optimising a quality criterion, each image dynamic range conversion operator (TMOi) being applied (10) to an original image ( l 1 ) to obtain an image, called the modified image (/ i 2 ), whose dynamic range is lower than that of the original image, characterised in that said quality criterion (Qi) is calculated, for each image dynamic range conversion operator (TMOi), as a function of a distortion (Di) calculated from a reconstructed version (/ i 3 ) after coding and decoding the original image modified (/ i 2 ) by said image dynamic range conversion operator (TMOi).
摘要翻译：本发明涉及一种通过优化质量标准从一组图像动态范围转换算子中选择图像动态范围转换算子的方法，每个图像动态范围转换算子（TMOi）被应用于原始图像（10） 1）获得称为动态范围低于原始图像的修改图像（/ i 2）的图像，其特征在于，对于每个图像动态范围转换算子（TMOi）计算所述质量标准（Qi））作为由所述图像动态范围转换算子（TMOi）编码和解码经过修改的原始图像（/ i 2）之后的重构版本（/ i 3）计算的失真（Di）的函数。

5. 发明申请

WO2014118033A1 METHOD AND DEVICE FOR MODIFYING THE DYNAMIC RANGE OF AN IMAGE SEQUENCE 审中-公开
标题翻译：用于修改图像序列的动态范围的方法和装置
公开(公告)号：WO2014118033A1
公开(公告)日：2014-08-07
申请号：PCT/EP2014/051120
申请日：2014-01-21
申请人： THOMSON LICENSING
发明人： BOITARD, Ronan , THOREAU, Dominique , BOUATOUCH, Kadi , COZOT, Rémi
IPC分类号： G06T5/00 , G06T5/40
CPC分类号： G06T5/009 , G06T5/40 , G06T7/136 , G06T2207/10016 , G06T2207/20208
摘要： The invention relates to a method and device for modifying the dynamic range of an image sequence (S) by multiplying the luminance values of the pixels of the images of said image sequence (S) by a modification coefficient determined from a key value that defines an indication of the brightness of the pixels. The method is characterized in that it comprises the following steps: - obtaining (10) at least one zone (Zi) of said image sequence (S), each zone being defined, on the one hand, by two luminance thresholds constant throughout the image sequence and, on the other hand, in a way that each image of the image sequence has a same zone number, - associating (20) a key (ki) with each zone of each image, said key defining an indication of the brightness of the pixels of the image whose luminance values belong to this zone, and - modifying (30) the dynamic range of the pixels of each image whose luminance values belong to a zone thus obtained by multiplying the luminance values of these pixels by a coefficient determined from the key thus associated with this zone.
摘要翻译：本发明涉及一种用于通过将所述图像序列（S）的图像的像素的亮度值乘以由定义一个或多个图像序列的键值确定的修正系数来修改图像序列（S）的动态范围的方法和装置，指示像素的亮度。该方法的特征在于它包括以下步骤： - 获得（10）所述图像序列（S）的至少一个区域（Zi），每个区域一方面限定整个图像中恒定的两个亮度阈值序列，另一方面，以图像序列的每个图像具有相同的区域号的方式， - 将密钥（ki）与每个图像的每个区域相关联（20），所述密钥定义亮度的指示其亮度属于该区域的图像的像素，以及 - 修改（30）其亮度属于这样获得的区域的每个图像的像素的动态范围，该像素通过将这些像素的亮度值乘以由因此与该区域相关联的关键。

6. 发明申请

WO2014118032A1 METHOD AND DEVICE FOR MODIFYING THE DYNAMIC RANGE OF AN IMAGE 审中-公开
标题翻译：用于修改图像的动态范围的方法和装置
公开(公告)号：WO2014118032A1
公开(公告)日：2014-08-07
申请号：PCT/EP2014/051116
申请日：2014-01-21
申请人： THOMSON LICENSING
发明人： THOREAU, Dominique , BOUATOUCH, Kadi , COZOT, Rémi , BOITARD, Ronan
IPC分类号： G06T5/00 , G06T5/40
CPC分类号： G06T5/008 , G06T5/40 , G06T7/136 , G06T2207/20012 , G06T2207/20021 , G06T2207/20208
摘要： The invention relates to a method and device for modifying the dynamic range of an image (IM) by multiplying the luminance values of the pixels of the image by a modification coefficient determined from a value, called a key, which defines an indication of the brightness of the pixels. The method is characterised in that it comprises the following steps: - obtaining (10) at least one image region (Rj), - associating (20) a key (kj) with each image region, said key defining an indication of the brightness of the pixels belonging to this image region, and - modifying (30) the dynamic range of the pixels of at least one image region by multiplying the luminance values of these pixels by a coefficient determined from the key thus associated with this image region.
摘要翻译：本发明涉及一种用于通过将图像像素的亮度值乘以由称为密钥的值确定的修正系数来修改图像（IM）的动态范围的方法和装置，其定义亮度指示的像素。该方法的特征在于它包括以下步骤： - 获得（10）至少一个图像区域（Rj）， - 将键（kj）与每个图像区域相关联（20），所述键限定亮度指示属于该图像区域的像素，以及 - 通过将这些像素的亮度值乘以由与该图像区域相关联的键确定的系数来修改（30）至少一个图像区域的像素的动态范围。

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