Search International and National Patent Collections

1. (WO2018157350) HORIZONTAL CALIBRATION METHOD AND SYSTEM FOR PANORAMIC IMAGE OR VIDEO, AND PORTABLE TERMINAL

Pub. No.:    WO/2018/157350    International Application No.:    PCT/CN2017/075446
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Mar 03 00:59:59 CET 2017
IPC: G06T 5/00
Applicants: SHENZHEN ARASHI VISION COMPANY LIMITED
深圳岚锋创视网络科技有限公司
Inventors: XIE, Yuming
谢钰铭
PENG, Wenxue
彭文学
Title: HORIZONTAL CALIBRATION METHOD AND SYSTEM FOR PANORAMIC IMAGE OR VIDEO, AND PORTABLE TERMINAL
Abstract:
The present invention is applied to the field of image processing, and provides a horizontal calibration method and system for a panoramic image or video, and a portable terminal. The method comprises: receiving images or video frames of two circles after being imaged by two cameras having opposite photographing directions; obtaining a horizontal calibration matrix during photographing; and pasting, according to the horizontal calibration matrix, the images or video frames of the two circles to a left hemispherical curved surface and a right hemispherical curved surface of a spherical panoramic mathematical model in a UV mapping manner, respectively so that the panoramic images or video frames pasted in the spherical panoramic mathematical model are horizontal. According to the present invention, when an image or a video frame photographed by a panoramic camera is not horizontal, the panoramic image or the video frame pasted in a spherical panoramic mathematical model is still horizontal.