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公开(公告)号：US20240013391A1
公开(公告)日：2024-01-11
申请号：US18474215
申请日：2023-09-25
Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Inventor： Xiaolin MENG , Xin WENG , Libo ZHANG , Qi DUAN , Shuai WANG
CPC classification number: G06T7/0012 , G06T3/0037 , G06T3/00 , G06T7/187 , G06T7/11 , G06T2207/30172 , G06T2207/10072 , G06T2207/30028
Abstract: An image processing method is provided, including: obtaining image data of a cavity wall of an organ; unfolding the cavity wall; and generating an image of the unfolded cavity wall. The unfolding of the cavity wall may include: obtaining a mask and a centerline of the organ; obtaining a connected region of the mask; dividing the connected region into at least one equidistant block; determining an orientation of the equidistant block in a three-dimensional coordinate system including a first direction, a second direction and a third direction; determining an initial normal vector and an initial tangent vector of a center point of the centerline; assigning a projection of the initial normal vector to a normal vector of a light direction of the center point; assigning the third direction or an reverse direction of the third direction to a tangent vector of the light direction of the center point.
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公开(公告)号：US20180315191A1
公开(公告)日：2018-11-01
申请号：US16022873
申请日：2018-06-29
Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Inventor： Xiaolin MENG , Xin WENG , Libo ZHANG , Qi DUAN , Shuai WANG
CPC classification number: G06T7/0012 , G06T3/00 , G06T3/0037 , G06T7/11 , G06T7/187 , G06T2207/10072 , G06T2207/30028 , G06T2207/30172
Abstract: An image processing method is provided, including: obtaining image data of a cavity wall of an organ; unfolding the cavity wall; and generating an image of the unfolded cavity wall. The unfolding of the cavity wall may include: obtaining a mask and a centerline of the organ; obtaining a connected region of the mask; dividing the connected region into at least one equidistant block; determining an orientation of the equidistant block in a three-dimensional coordinate system including a first direction, a second direction and a third direction; determining an initial normal vector and an initial tangent vector of a center point of the centerline; assigning a projection of the initial normal vector to a normal vector of a light direction of the center point; assigning the third direction or an reverse direction of the third direction to a tangent vector of the light direction of the center point.
