公开(公告)号：US20240212115A1

公开(公告)日：2024-06-27

申请号：US18503784

申请日：2023-11-07

Applicant: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION

Inventor： Tae Hyun OH ,  Jun Seong KIM ,  Yu Ji KIM ,  Ye Bin MOON

IPC: G06T5/00 ,  G06T15/06 ,  G06T15/08 ,  G06T19/20

CPC classification number: G06T5/009 ,  G06T15/06 ,  G06T15/08 ,  G06T19/20 ,  G06T2207/10024 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20208 ,  G06T2219/2012

Abstract: An image processing device may perform a method for generating 3D HDR radiance fields, and the method may include: receiving an input of low dynamic range (LDR) images, which are captured at various viewpoints; constructing the 3D high dynamic range (HDR) radiance fields from the LDR images captured at the various viewpoints; generating an HDR image by ray marching on a basis of the 3D HDR radiance fields; generating a tone-mapped LDR image from the HDR image through a tone mapping module; calculating a loss value on a basis of the LDR images captured at the various viewpoints and the tone-mapped LDR image; and modifying parameters of the 3D HDR radiance fields and parameters of the tone-mapping module, so as to maximally minimize the loss value. The LDR images captured at the various viewpoints may be images captured under photometric conditions different from each other.