TERMINAL HAVING CAMERA, NAVIGATION INFORMATION PROVIDING SYSTEM, AND NAVIGATION INFORMATION DISPLAY METHOD

• Main Author: KUROSAWA AKIRA
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2017
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

PROBLEM TO BE SOLVED: To provide a technology of accurately guiding a user in an environment in which a sufficient accuracy cannot be expected from a GPS or a gyro sensor.SOLUTION: A navigation information display of the present embodiment does not use a three-dimensional relative position between a camera and a marker. The relative angle between the camera and the marker is obtained as the angle between a camera optical axis vector in a camera model and a vector to the marker, from a marker position projected on an image and an optical axis position previously obtained by calibration. On the basis of the obtained relative angle, an image photographed on a screen and an arrow guide for navigation are displayed while being overlaid on each other at a more appropriate angle, and a user is guided to a destination.SELECTED DRAWING: Figure 6 【課題】ＧＰＳやジャイロセンサから十分な精度を期待できない環境において正確に利用者をナビゲートするための技術を提供する。【解決手段】本実施形態のナビゲーション情報表示では、カメラとマーカー間の３次元相対位置は利用されない。カメラとマーカー間の相対角度は、画像上に投影されるマーカー位置と事前に校正して得た光軸位置から、カメラモデルにおけるカメラ光軸ベクトルとマーカーへのベクトル間の角度として得る。得た相対角度を基に、画面上に撮影した画像とナビゲーションのための矢印・案内を、より適切な角度で重畳表示し、利用者を目的地までナビゲーションする。【選択図】図６