公开(公告)号：US20230217036A1

公开(公告)日：2023-07-06

申请号：US18065530

申请日：2022-12-13

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jian GAO ,  Yuanyang WEI ,  Lanyu ZHANG ,  Haixiang DENG ,  Yun CHEN ,  Xin CHEN

IPC: H04N19/513 ,  H04N19/172

CPC classification number: H04N19/513 ,  H04N19/172

Abstract: Disclosed are a plane coding target and an image splicing system and method applying the same. The plane coding target comprises a plurality of coding units distributed in an array, the coding unit comprises one central coding point, a plurality of normal coding points and at least one positioning point, and a positioning point distribution style of the positioning point is used for determining coordinates of the central coding point and the normal coding points in a coding unit coordinate system; and coding numerical value sequences of the coding units are different from each other and unique. The plane coding target can realize large-area coding and positioning functions, and the image splicing system applying the plane coding target can solve the problems of splicing error and error accumulation caused by an identification error of a splicing location, thus realizing large-range, high-precision and short-time two-dimensional image splicing.

公开(公告)号：US20230070287A1

公开(公告)日：2023-03-09

申请号：US17988096

申请日：2022-11-16

Applicant: Guangdong University of Technology

Inventor： Jian GAO ,  Yuanyang WEI ,  Lanyu ZHANG ,  Yongbin ZHONG ,  Haixiang DENG ,  Yun CHEN ,  Xin CHEN

IPC: G06T7/70 ,  G06T9/00

Abstract: A real-time pose measurement method of a planar coding target for a vision system. The planar coding target includes a plurality of coding elements, a coding block, a coding template, a minimum identification unit pattern and a coding pattern. Each coding element has a unique coding value, and serial numbers of the coding elements are different from each other. The coding block includes four coding elements that are distributed in the same rectangle ABCD and do not overlap with each other. A center of the coding block is an intersection point O of two diagonals of the rectangle ABCD. A coding value of the coding block is associated with coding values of the four coding elements contained therein.