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1.发明公开
公开(公告)号：EP4123595A2
公开(公告)日：2023-01-25
申请号：EP22212042.0
申请日：2022-12-07
发明人： LIU, Xiyan , CAI, Junjie , ZHONG, Kai , YANG, Jianzhong , XIA, Deguo , ZHANG, Tongbin , LU, Zhen
摘要： The present disclosure provides a method and an apparatus of rectifying a text image, a training method and apparatus, an electronic device, and a medium, which relate to a field of an artificial intelligence technology, in particular to fields of computer vision, deep learning technology, intelligent transportation and high-precision maps. A specific implementation solution includes: performing, based on a gating strategy, a plurality of first layer-wise processing on a text image to be rectified, so as to obtain respective feature maps of a plurality of layer levels, wherein each of the feature maps includes a text structural feature related to the text image to be rectified, and the gating strategy is configured to increase an attention to the text structural feature; and performing a plurality of second layer-wise processing on the respective feature maps of the plurality of layer levels, so as to obtain a rectified text image corresponding to the text image to be rectified.
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公开(公告)号：EP4205080A1
公开(公告)日：2023-07-05
申请号：EP22868279.5
申请日：2022-09-07
申请人： Tencent America LLC
发明人： HUANG, Chao , ZHANG, Xiang , TIAN, Jun , XU, Xiaozhong , LIU, Shan
IPC分类号： G06T9/00 , G06V30/16 , H04N19/176
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3.发明公开
公开(公告)号：EP4389442A1
公开(公告)日：2024-06-26
申请号：EP23214438.6
申请日：2023-12-05
申请人： IDEMIA France
发明人： BERTHE, Benoît
IPC分类号： B42D25/23 , B42D25/24 , B42D25/328 , B42D25/41 , B42D25/485 , B41M3/14 , G06V30/16 , B41F33/00
CPC分类号： B42D25/41 , B42D25/23 , B42D25/24 , B42D25/328 , B42D25/485 , B41F33/0036 , B41F33/0081 , G06V30/42 , G06V30/414 , G06V30/1475 , G06V30/1463
摘要： Procédé de recalage d'une matrice de sous-pixels agencée au sein d'un document de sécurité, les sous-pixels étant chacun associés à une couleur et à une position cible,
le document comprenant en outre des marques de recalage agencées autour ou au sein de la matrice de sous-pixels (SP), le procédé comprenant :
a - une obtention de la position au sein du document des marques de recalage (MR),
b - une détermination d'une position intermédiaire (PI) située entre au moins deux positions de marques de recalage obtenues et adjacentes,
c - une détermination de la position (SPI) du sous-pixel associé à une couleur d'intérêt qui est le plus proche de la position intermédiaire,
d - une détermination d'un ensemble de paramètres de courbes d'interpolation passant par les positions des marques de recalage et par la position dudit sous-,
e - un recalage de la matrice.-
4.发明公开
公开(公告)号：EP4123595A3
公开(公告)日：2023-05-24
申请号：EP22212042.0
申请日：2022-12-07
发明人： LIU, Xiyan , CAI, Junjie , ZHONG, Kai , YANG, Jianzhong , XIA, Deguo , ZHANG, Tongbin , LU, Zhen
摘要： The present disclosure provides a method and an apparatus of rectifying a text image, a training method and apparatus, an electronic device, and a medium, which relate to a field of an artificial intelligence technology, in particular to fields of computer vision, deep learning technology, intelligent transportation and high-precision maps. A specific implementation solution includes: performing, based on a gating strategy, a plurality of first layer-wise processing on a text image to be rectified, so as to obtain respective feature maps of a plurality of layer levels, wherein each of the feature maps includes a text structural feature related to the text image to be rectified, and the gating strategy is configured to increase an attention to the text structural feature; and performing a plurality of second layer-wise processing on the respective feature maps of the plurality of layer levels, so as to obtain a rectified text image corresponding to the text image to be rectified.
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公开(公告)号：EP3547218B1
公开(公告)日：2023-12-20
申请号：EP16924927.3
申请日：2016-12-30
发明人： ZHANG, Yunchao , GAO, Wenmei
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