公开(公告)号：US20210042948A1

公开(公告)日：2021-02-11

申请号：US17069130

申请日：2020-10-13

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Tetsuro MORIMOTO

IPC: G06T7/557 ,  G06T7/90 ,  H04N13/122 ,  H04N13/15

Abstract: A light-field image generation system including a shape information acquisition server that acquires shape information indicating a three-dimensional shape of an object, and an image generation server that is provided with a shape reconstruction unit that reconstructs the three-dimensional shape of the object as a virtual three-dimensional shape in a virtual space based on the shape information and a light-field image generation unit that generates a light-field image of the virtual three-dimensional shape at a predetermined viewing point in the virtual space.

公开(公告)号：US20190170585A1

公开(公告)日：2019-06-06

申请号：US16258569

申请日：2019-01-26

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Takashi OKADA ,  Tomohito MASUDA ,  Tetsuro MORIMOTO

IPC: G01J3/52 ,  B42D25/328 ,  G02B5/32 ,  G03H1/26 ,  G01J3/50 ,  G01J3/02 ,  G06T7/90 ,  G06K9/46 ,  H04N9/04

Abstract: This color calibration device is a color calibration device, calibrating colors in a captured image of a first imaging device between different imaging devices using a hologram emitting diffracted light at different frequencies corresponding to an observation angle, the color calibration device includes: a diffracted light spectral distribution calculation unit that obtains respective diffracted light spectral distribution of the diffracted light from the hologram; a camera sensitivity function estimation unit that estimates spectral sensitivity of the imaging device from the respective diffracted light spectral distribution of the diffracted light and each captured image of the diffracted light; and a color calibration unit that calibrates difference in color of the first imaging device relative to a second imaging device different from the first imaging device using the estimated spectral sensitivity.