METHOD AND APPARATUS FOR DIGITAL PANORAMIC IMAGING WITH VARIABLE THICKNESS OF THE PANORAMIC LAYER AND COMPUTER PROGRAM PRODUCT

    公开(公告)号:EP4011295A1

    公开(公告)日:2022-06-15

    申请号:EP21211893.9

    申请日:2021-12-02

    申请人: De Gotzen S.r.l.

    IPC分类号: A61B6/14 A61B6/00 A61B6/03

    摘要: A method and an apparatus for digital panoramic imaging in the head region of a patient is proposed. The apparatus comprises an X-ray source and X-ray sensor (12) as well as a control unit for processing the frames (14) provided by the sensor (12), in particular for performing a shift-and-add-operation on the frames (14) for generating a digital panoramic image of a focal plane (34) situated in a dental arch of the patient (2). In the digital shift-and-add operation, the frames (14) are weighted by weighting coefficients obtained from a weighting function (42) having, along a line extending across the frame (14)in the moving direction of the sensor (12), a maximum in a central region of the frame (14) and smaller values towards the edge of the frame (14), thus reducing the effective width of the sensor (12). The modulation of the effective width of the sensor (12) can be used for varying the width of the sharply imaged panoramic layer.