公开(公告)号：US11232593B2

公开(公告)日：2022-01-25

申请号：US16643678

申请日：2018-05-09

Applicant: Sony Interactive Entertainment Inc.

Inventor： Noriyuki Yamashita ,  Akio Ohba

IPC: G06T7/80 ,  G06T7/70 ,  G06T5/00 ,  G06T15/20 ,  H04N17/00

Abstract: In a calibration apparatus, a captured image acquisition unit acquires data of an image of a calibration chart captured by a fish-eye imaging apparatus. A distortion correction unit makes an assumption of a parameter of the imaging apparatus, takes into account a projection system to make a correction, and adjusts the parameter until an image of the original chart is obtained. A pseudo image drawing unit uses model data of a chart to draw a pseudo captured image. A point-of-view adjustment unit compares the pseudo image and the captured image and adjusts a point-of-view position of a virtual camera according to a difference between positions of markers or intervals of patterns to specify a position of the imaging apparatus.

公开(公告)号：US20200273205A1

公开(公告)日：2020-08-27

申请号：US16643678

申请日：2018-05-09

Applicant: Sony Interactive Entertainment Inc.

Inventor： Noriyuki Yamashita ,  Akio Ohba

IPC: G06T7/80 ,  H04N17/00 ,  G06T5/00 ,  G06T7/70 ,  G06T15/20

Abstract: In a calibration apparatus, a captured image acquisition unit acquires data of an image of a calibration chart captured by a fish-eye imaging apparatus. A distortion correction unit makes an assumption of a parameter of the imaging apparatus, takes into account a projection system to make a correction, and adjusts the parameter until an image of the original chart is obtained. A pseudo image drawing unit uses model data of a chart to draw a pseudo captured image. A point-of-view adjustment unit compares the pseudo image and the captured image and adjusts a point-of-view position of a virtual camera according to a difference between positions of markers or intervals of patterns to specify a position of the imaging apparatus.