IMAGE DISPLAY DEVICE

• US 20130321688A1
• Filed: 03/08/2012
• Published: 12/05/2013
• Est. Priority Date: 03/28/2011
• Status: Active Grant

• Current Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Nishimura, Kenji, Gojyo, Azusa
• Granted Patent: US 9,066,018 B2
• Time in Patent Office: Days
• US Class Current: 348/333.12
• CPC Class Codes: G01C 21/3647 Guidance involving output of stored or live camera images or video streams
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: H04N 23/635 Region indicators; Field of view indicators

Abstract

Disclosed is a technique for providing an image display device enabling a user to understand the entire correspondence relationship between a three-dimensional photographed image and a two-dimensional map image. According to the technique, when a photographed image and a map image in the imaging position are separately displayed on the screen of an image display unit 33, a map drawing unit 24 reads the position information (x, y) of the camera and the azimuth angle φ of the camera, reads a view angle θ of the camera, and reads map data around the imaging range of the camera using the position information (x, y) of the camera to process and draw the map image so that the view angle θ and the azimuth angle φ match the view angle θ and the azimuth angle φ of the photographed image taken by the camera.

Claims

1. An image display device which separately displays by a division a photographed image taken by an imaging unit and a map image on a screen, the image display device comprising:

a unit which acquires a view angle, an imaging position, and an imaging direction of the imaging unit; and

a unit which processes the map image so that the direction of the map image of the vicinity of the acquired imaging position matches the acquired imaging direction and so that the view angle of the map image matches the acquired view angle of the imaging unit.

2. The image display device according to claim 1, wherein:

the screen is divided into two upper and lower regions to display the photographed image in the upper divided region and to display the processed map image in the lower divided region; and

the view angle of the imaging unit is displayed together with the processed map image in the lower divided region.