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Patent Agency Ranking
公开(公告)号：US09710725B2
公开(公告)日：2017-07-18
申请号：US14902332
申请日：2013-12-04
Inventor： Kangxue Yin , Hui Huang
CPC classification number: G06K9/6251 , G06K9/342 , G06K9/4671 , G06K9/48 , G06K9/481 , G06K9/6207 , G06K2009/366 , G06K2009/484 , G06T7/13
Abstract: Provided is a method for extracting an image salient curve. The method comprises the following steps: drawing an approximate curve along a salient edge of an image from which a salient curve is to be extracted; obtaining short edges in the image; calculating a harmonic vector field by using the drawn curve as a boundary condition; filtering the short edges in the image by using the harmonic vector field; updating the vector field by using the short edges left in the image as boundary conditions; and obtaining an optimal salient curve of the image by using the energy of a minimized spline curve in the vector field. Also provided is a system for extracting an image salient curve. The image salient curve can ensure the smoothness and a bending characteristic.
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公开(公告)号：US10121283B2
公开(公告)日：2018-11-06
申请号：US15371148
申请日：2016-12-06
Inventor： Hui Huang , Kangxue Yin , Daniel Cohen-Or
Abstract: A method for reconstructing surface from a point cloud includes following steps: (a) extracting skeletal curves from an input point cloud; (b) editing the extracted skeletal curves, and assigning sweeping path; (c) obtaining sliced point clouds along the edited skeletal curves, and fitting a closed NURBS curve according to the sliced point clouds; (d) reconstructing the point cloud to get generalized cylinders along the assigned sweeping path, according to the closed NURBS curves; (e) merging the generalized cylinders into a single surface, and smoothing intersections of the generalized cylinders so as to reconstruct surface from the point cloud. The invention further relates to a system for reconstructing surface from a point cloud. The invention can reconstruct the surface with high accuracy by the minimum interactions, and can deal with point cloud data having missing region caused by occlusion. In addition, the invention can achieve high reconstruction quality and fine controllability.
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公开(公告)号：US20170084080A1
公开(公告)日：2017-03-23
申请号：US15371148
申请日：2016-12-06
Inventor： Hui Huang , Kangxue Yin , Daniel COHEN-OR
CPC classification number: G06T17/10 , G06T17/30 , G06T2210/56
Abstract: A method for reconstructing surface from a point cloud includes following steps: (a) extracting skeletal curves from an input point cloud; (b) editing the extracted skeletal curves, and assigning sweeping path; (c) obtaining sliced point clouds along the edited skeletal curves, and fitting a closed NURBS curve according to the sliced point clouds; (d) reconstructing the point cloud to get generalized cylinders along the assigned sweeping path, according to the closed NURBS curves; (e) merging the generalized cylinders into a single surface, and smoothing intersections of the generalized cylinders so as to reconstruct surface from the point cloud. The invention further relates to a system for reconstructing surface from a point cloud. The invention can reconstruct the surface with high accuracy by the minimum interactions, and can deal with point cloud data having missing region caused by occlusion. In addition, the invention can achieve high reconstruction quality and fine controllability.
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公开(公告)号：US20150363906A1
公开(公告)日：2015-12-17
申请号：US14765447
申请日：2013-09-13
Inventor： Hui HUANG , Kangxue Yin , Minglun Gong , Baoquan Chen , Yunhai Wang
CPC classification number: G06T3/0081 , G06T7/33 , G06T2207/20021
Abstract: Provided are an image restoration method and device. The method comprises: processing image blocks, which are initially registered, to acquire connection curves among the image blocks; constructing an ambient field of images to be restored by means of the connection curve; by minimizing energy of the connection curve in the ambient field, registering the image blocks; and performing image filling on the registered image blocks to acquire a restored image. The device comprises: a processing unit used for processing the image blocks, which are initially registered, to acquire the connection curve among the image blocks; an ambient field construction unit used for constructing the ambient field of the image to be restored by means of the connection curve; a registering unit used for registering the image blocks by minimizing the energy of the connection curve in the ambient field; and a filling unit used for performing image filling on the registered image blocks to acquire the restored image. The present invention can be applied to restore any damaged image and improve the accuracy.
Abstract translation: 提供了一种图像恢复方法和装置。 该方法包括：处理最初登录的图像块，以获取图像块之间的连接曲线; 通过连接曲线构建要恢复的图像的环境场; 通过最小化环境场中的连接曲线的能量，登记图像块; 并对所登记的图像块执行图像填充以获得恢复的图像。 该装置包括：用于处理最初登记的图像块的处理单元，用于获取图像块中的连接曲线; 用于通过连接曲线构造要恢复的图像的环境场的环境场结构单元; 登记单元，用于通过使环境场中的连接曲线的能量最小化来登记图像块; 以及填充单元，用于对登记的图像块执行图像填充以获取恢复的图像。 本发明可以应用于恢复任何损坏的图像并提高精度。
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公开(公告)号：US09547885B2
公开(公告)日：2017-01-17
申请号：US14765447
申请日：2013-09-13
Inventor： Hui Huang , Kangxue Yin , Minglun Gong , Baoquan Chen , Yunhai Wang
CPC classification number: G06T3/0081 , G06T7/33 , G06T2207/20021
Abstract: Provided are an image restoration method and device. The method comprises: processing image blocks, which are initially registered, to acquire connection curves among the image blocks; constructing an ambient field of images to be restored by means of the connection curve; by minimizing energy of the connection curve in the ambient field, registering the image blocks; and performing image filling on the registered image blocks to acquire a restored image. The device comprises: a processing unit used for processing the image blocks, which are initially registered, to acquire the connection curve among the image blocks; an ambient field construction unit used for constructing the ambient field of the image to be restored by means of the connection curve; a registering unit used for registering the image blocks by minimizing the energy of the connection curve in the ambient field; and a filling unit used for performing image filling on the registered image blocks to acquire the restored image. The present invention can be applied to restore any damaged image and improve the accuracy.
Abstract translation: 提供了一种图像恢复方法和装置。 该方法包括：处理最初登录的图像块，以获取图像块之间的连接曲线; 通过连接曲线构建要恢复的图像的环境场; 通过最小化环境场中的连接曲线的能量，登记图像块; 并对所登记的图像块执行图像填充以获得恢复的图像。 该装置包括：用于处理最初登记的图像块的处理单元，用于获取图像块中的连接曲线; 用于通过连接曲线构造要恢复的图像的环境场的环境场结构单元; 登记单元，用于通过使环境场中的连接曲线的能量最小化来登记图像块; 以及填充单元，用于对登记的图像块执行图像填充以获取恢复的图像。 本发明可以应用于恢复任何损坏的图像并提高精度。
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