公开(公告)号：US09633471B2

公开(公告)日：2017-04-25

申请号：US14703245

申请日：2015-05-04

Applicant: Sony Computer Entertainment Inc.

Inventor： Takahiro Koguchi ,  Shinya Wada

IPC: G06T15/50 ,  G06T15/06

CPC classification number: G06T15/506 ,  G06T15/06

Abstract: An image processing device includes a photon map generator that constructs a virtual three-dimensional space as a rendering target and generates a photon map by distributing photons used for a photon mapping method, a low-luminance region identifying unit that identifies a low-luminance region estimated to have low luminance when the virtual three-dimensional space is projected onto a screen corresponding to a viewpoint by a method different from the photon mapping method, and a rendering part that collects photons corresponding to all pixels based on the photon map with reduction in the collection rate of photons corresponding to a pixel included in the low-luminance region compared with the other region, and calculates radiance to decide a pixel value and generate a display image.

公开(公告)号：US10175765B2

公开(公告)日：2019-01-08

申请号：US14791831

申请日：2015-07-06

Applicant: Sony Computer Entertainment Inc.

Inventor： Shinya Wada ,  Hiroyuki Segawa ,  Akio Ohba

IPC: G06F3/01 ,  G06K9/00 ,  H04N13/02

Abstract: An information processing device that detects the position of a subject shot by a camera in a three-dimensional space is provided. The information processing device includes a depth image acquiring section that acquires a depth image in which the distance of a subject in the depth direction from the camera is represented as a pixel value on an image plane, a spatial structure identifying section that identifies the position of a plane forming a predetermined angle with a gravity vector among subject surfaces by detecting a coordinate point collection representing the plane on the basis of the distribution of coordinate points obtained by inverse projection of pixels of the depth image to the three-dimensional space based on the direction of the gravity vector, and a target object extracting section that generates and outputs position information of a predetermined target object on the basis of the position of the plane.