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公开(公告)号：US20140176685A1
公开(公告)日：2014-06-26
申请号：US14129315
申请日：2011-06-28
申请人： Michio Oikawa , Hanae Yoshida , Tomohiro Nagao , Jiangtao Gao , Yingjie Han , Xingdong Sheng
发明人： Michio Oikawa , Hanae Yoshida , Tomohiro Nagao , Jiangtao Gao , Yingjie Han , Xingdong Sheng
IPC分类号： H04N13/04
CPC分类号： H04N13/30 , A61B6/022 , A61B6/032 , A61B6/461 , A61B6/466 , A61B6/504 , A61B6/505 , A61B6/5223 , G06T15/08
摘要： The present invention provides an image display method and an image display apparatus, which solve the three-dimensional cueing confliction problem of the maximum intensity projection in the stereoscopic display method, while enabling users to select and render with emphasis the maximum intensity projection of the objects of interest, so that to realize the stereoscopic display. In accordance with the present invention, a three-dimensional surface which has equal distance to a sight-point is utilized as a reference surface, and the distances from all of the local maximum intensity points to this reference surface are calculated, then, the weighting factor of each local maximum intensity point is calculated according to the distances and predetermined weighting function, afterwards, the values of local maximum intensity points are adjusted according to the obtained weighting factors, and finally, the maximum intensity projection value is produced by synthesizing all of the adjusted values of local maximum intensity points.
摘要翻译： 本发明提供了一种图像显示方法和图像显示装置，其解决立体显示方法中的最大强度投影的三维提示冲突问题，同时使用户能够强调选择和呈现物体的最大强度投影 感兴趣，从而实现立体显示。 根据本发明，利用与视点相等距离的三维表面作为基准面，并计算出从所有局部最大强度点到该参考面的距离，然后计算加权 根据距离和预定的加权函数计算每个局部最大强度点的因子，然后根据获得的加权因子调整局部最大强度点的值，最后通过合成所有的最大强度投影值 局部最大强度点的调整值。
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公开(公告)号：US09984433B2
公开(公告)日：2018-05-29
申请号：US15129260
申请日：2015-03-26
申请人： Yingjie Han , Xingdong Sheng
发明人： Yingjie Han , Xingdong Sheng
CPC分类号： G06T1/20 , G06T5/20 , G06T11/003 , G06T2207/10081 , H04N5/32
摘要： The present invention relates to an image filtering method and a CT (Computed Tomography) system. The image filtering method is configured to filter an image in a parallel manner by use of a multi-core processor, and comprises the following steps: firstly, determining a plurality of computing directions for filtering processing according to the number of the dimension of the image and the predetermined neighborhood range of filtering processing; secondly, according to each of the determined computing directions, for one row of pixels in the image, by taking each pixel in the row as an object pixel, performing by each thread in a plurality of threads predetermined filtering computing between the object pixel and the respective neighborhood pixels of the object pixel in the computing direction, saving the filtering computing results as the filtering results of the object pixels and the respective neighborhood pixels in a cumulative manner; and finally accumulating the filtering results of all the determined computing directions to obtain the image filtering result. Therefore, repeated computations in the current parallel computing can be reduced to greatly accelerate parallel computing for image filtering.
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公开(公告)号：US20170109860A1
公开(公告)日：2017-04-20
申请号：US15129260
申请日：2015-03-26
申请人： Yingjie HAN , Xingdong SHENG
发明人： Yingjie HAN , Xingdong SHENG
CPC分类号： G06T1/20 , G06T5/20 , G06T11/003 , G06T2207/10081 , H04N5/32
摘要： The present invention relates to an image filtering method and a CT (Computed Tomography) system. The image filtering method is configured to filter an image in a parallel manner by use of a multi-core processor, and comprises the following steps: firstly, determining a plurality of computing directions for filtering processing according to the number of the dimension of the image and the predetermined neighborhood range of filtering processing; secondly, according to each of the determined computing directions, for one row of pixels in the image, by taking each pixel in the row as an object pixel, performing by each thread in a plurality of threads predetermined filtering computing between the object pixel and the respective neighborhood pixels of the object pixel in the computing direction, saving the filtering computing results as the filtering results of the object pixels and the respective neighborhood pixels in a cumulative manner; and finally accumulating the filtering results of all the determined computing directions to obtain the image filtering result. Therefore, repeated computations in the current parallel computing can be reduced to greatly accelerate parallel computing for image filtering.
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公开(公告)号：US09491443B2
公开(公告)日：2016-11-08
申请号：US14129315
申请日：2011-06-28
申请人： Michio Oikawa , Hanae Yoshida , Tomohiro Nagao , Jiangtao Gao , Yingjie Han , Xingdong Sheng
发明人： Michio Oikawa , Hanae Yoshida , Tomohiro Nagao , Jiangtao Gao , Yingjie Han , Xingdong Sheng
CPC分类号： H04N13/30 , A61B6/022 , A61B6/032 , A61B6/461 , A61B6/466 , A61B6/504 , A61B6/505 , A61B6/5223 , G06T15/08
摘要： An image display method and an image display apparatus to solve the three-dimensional cueing confliction problem of the maximum intensity projection in the stereoscopic display method, while enabling users to select and render with emphasis the maximum intensity projection of the objects of interest, so that to realize the stereoscopic display. A three-dimensional surface which has equal distance to a sight-point is utilized as a reference surface, and the distances from all of the local maximum intensity points to this reference surface are calculated, then a weighting factor of each local maximum intensity point is calculated according to the distances and predetermined weighting function. After, the values of local maximum intensity points are adjusted according to the obtained weighting factors, and finally, the maximum intensity projection value is produced by synthesizing all of the adjusted values of the local maximum intensity points.
摘要翻译： 一种图像显示方法和图像显示装置，用于解决立体显示方法中的最大强度投影的三维提示冲突问题，同时使用户能够强调选择和重视所关注的对象的最大强度投影，使得 实现立体显示。 将与观察点相等距离的三维表面用作参考表面，并且计算从所有局部最大强度点到该参考表面的距离，则每个局部最大强度点的加权因子为 根据距离和预定加权函数计算。 之后，根据获得的加权因子调整局部最大强度点的值，最后，通过合成局部最大强度点的所有调整值来产生最大强度投影值。
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