公开(公告)号：US09596441B2

公开(公告)日：2017-03-14

申请号：US14449017

申请日：2014-07-31

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ho Chul Shin

IPC: H04N9/31

CPC classification number: H04N9/3182 ,  H04N9/3185 ,  H04N9/3194

Abstract: Disclosed is a method of correcting an input image when projecting the input image using an image projection device. The method includes obtaining information on a projection surface on which the input image is to be projected and information on a user's position through at least one image sensor, performing geometric correction on the input image based on the information on the projection surface and the information on the user's position, performing color correction on the input image based on the information on the projection surface, and performing brightness correction on the input image based on the information on the projection surface.

Abstract translation: 公开了一种使用图像投影装置投影输入图像时校正输入图像的方法。 该方法包括通过至少一个图像传感器获得关于投影图像的投影面上的信息和关于用户位置的信息，基于投影面上的信息和关于投影面的信息对输入图像进行几何校正 用户的位置，基于投影面上的信息对输入图像进行色彩校正，并根据投影面上的信息对输入图像进行亮度校正。

公开(公告)号：US09967516B2

公开(公告)日：2018-05-08

申请号：US14811070

申请日：2015-07-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Ho Chang ,  Jae Chan Jeong ,  Ho Chul Shin ,  Dae Hwan Hwang ,  Seung Min Choi ,  Eul Gyoon Lim ,  Jae Il Cho ,  Kuk Jin Yoon

IPC: H04N5/911 ,  H04N13/02 ,  G06T7/521 ,  G06T7/593 ,  H04N13/00

CPC classification number: H04N5/911 ,  G06T7/521 ,  G06T7/593 ,  G06T2207/10012 ,  G06T2207/10152 ,  H04N13/239 ,  H04N13/254 ,  H04N2013/0081

Abstract: There are provided a stereo matching method capable of increasing a resolution and precision of an object and a device for performing the method. The method includes investigating a pattern according to a predetermined period; obtaining left and right stereo images in which the investigated pattern is included or not included; determining whether each of the stereo image obtained according to the predetermined period and a buffering image that is a previous frame image of the stereo image includes the pattern; and generating a final cost volume by performing different image processing according to whether each of the stereo image and the buffering image includes the pattern. Therefore, it is possible to increase precision of a disparity of a thin object and increase accuracy and precision of an object at a long distance.