3D IMAGE CROPPING METHOD

WIPO Patent Application WO/2016/165209

A1

A 3D image cropping method comprises: rendering an image surface according to a surface element of an object, acquiring a 3D display image of the object in a screen 2D coordinate system, acquiring a 2D coordinate in the screen 2D coordinate system corresponding to each of voxels of the object; alternatively, performing volume rendering according to voxels of the object, acquiring the 3D display image of the object in the screen 2D coordinate system and 2D coordinates corresponding to each of the voxels of the object in the screen 2D coordinate system (100); determining a region to be cropped in the 3D display image (110); discarding a voxel corresponding to a 2D coordinate of a pixel point of the 3D display image within the region to be cropped, and the surface element corresponding to the voxel (120); and re-rendering the image surface according to the remaining surface elements, or re-rendering the image volume according to the remaining voxels (130).

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LIU JINGJING (CN)
CHEN YONGJIAN (CN)
TIAN GUANGYE (CN)

PCT/CN2015/081450

October 20, 2016

June 15, 2015

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QINGDAO HISENSE MEDICAL EQUIPMENT CO LTD (CN)

G06T19/20

CN104463942A	2015-03-25
CN104050689A	2014-09-17
CN101593357A	2009-12-02
CN103810752A	2014-05-21
US20120177258A1	2012-07-12

QINGDAO LZ PATENT AND TRADEMARK OFFICE CO.,LTD. (CN)
青岛联智专利商标事务所有限公司 (CN)

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