JP2005222009A - System for providing three-dimensional whole-perimeter animation and still picture corresponding to portable information terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to build a map system in which three-dimensional map is used on portable information terminals. <P>SOLUTION: In application of a map system using portable information terminals, a three-dimensional map is expressed on a requesting portable information terminal (1) by making the map system a barrier-free system while using the three-dimensional map without using a two-dimensional map and (2) by reducing the amount of data of the map data of the three-dimensional map while converting the data of the three-dimensional map into animations or still pictures covering whole fields of vision from a required position in a server and by providing the reduced data to the requesting portable terminal in real time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

Detailed Description of the Invention

The present invention realizes a map system using a three-dimensional map on a low-spec portable information terminal, and at present, the necessary position of 3D map data with a large amount of data can be obtained without impairing the detailed landscape information. System that can provide necessary 3D map data to mobile information terminals in real time or in advance with a smaller amount of data by converting on the server to panoramic video or panoramic still image data that covers the entire field of view from It is about.

With the spread of various computer systems, systems using maps such as car navigation systems have come to be widely used. In addition, the downsizing of computer systems has led to the spread of portable information terminals such as mobile phones. However, the performance has been reduced by downsizing, and the system expressed in them can be written in characters or two-dimensional. Has been limited to.
Under such circumstances, in the world of maps, what can be expressed only in two dimensions until now can be expressed as a three-dimensional real space on a computer. However, 3D map data has more than 2D data, has a large amount of data, and requires calculation of perspective, so that it can only be realized with a high-performance computer. In order to run this software on a small portable information terminal, there is no choice but to wait for improvement in hardware performance.

Problems to be solved by the invention

Current map systems using portable information terminals have the following disadvantages.
(B) Since the map currently used is two-dimensional, the user needs to image in real space (three-dimensional) in his / her head. The system is not easy to understand for all users.
(B) 3D maps have also appeared due to recent technological innovations, but 3D maps have a large amount of data due to their realism, and also require perspective calculations, etc., so low-spec mobile information terminals Then you can not display or operate.

Means for solving the problem

The present invention for solving the problems (a) and (b) in the previous section is as follows. In the map system using portable information terminals, (a) it is understood by all users than the current two-dimensional map. (B) A panoramic video or panoramic still image that covers the entire field of view from the required position on the server side instead of the terminal side A system for providing a three-dimensional all-round moving image / still image corresponding to a portable information terminal, comprising means for reducing the data amount by conversion and providing the data in real time or in advance.

In the three-dimensional all-round video / still image providing system corresponding to the portable information terminal for solving such a problem,
(A) A “three-dimensional map method” is provided as a means for realizing operation on a three-dimensional map that is easier for all users to understand than the current two-dimensional map.
Unlike the 2D map, the “3D map method” does not require the user to image the real space (3D) in his / her head, which makes it an intuitive and easy-to-understand system for all users. .
(B) Converting a 3D map with a large amount of data into a panoramic video or panoramic still image that covers the entire field of view from the required position on the server side instead of the terminal side, reducing the data amount, As means for providing in real time or in advance, a “three-dimensional map moving image method” and a “three-dimensional map still image method” are provided.
In the “3D map animation method”, the 3D map data itself is not held in the portable information terminal, but on the server side, the 3D map space is converted into a panoramic movie that covers the entire field of view from the required position. By converting it and providing it in real time or in advance, an environment is provided as if 3D map data is being displayed / operated on the portable information terminal. Further, the image to be cut out is cut out to be larger than the size displayed on the portable information terminal, thereby realizing high-resolution display for enlargement / reduction.
FIG. 1 is an explanatory diagram for providing a three-dimensional all-round moving image and a still image at the current position.
Furthermore, for each frame of a panoramic video, it is possible to display moving image data from a necessary position by creating an index that associates coordinate information.
FIG. 2 is an explanatory diagram for providing a three-dimensional full-circle moving image of a designated route.
In the “three-dimensional map still image method”, when a map outside the range of the moving image provided in advance is required, the server side covers the entire view from the necessary position on the three-dimensional map space as described above. By converting to a cut out panoramic still image and providing it in real time or in advance, an environment as if three-dimensional map data is being displayed and operated on a portable information terminal is provided.
FIG. 3 is an explanatory diagram of providing a still image at the current position when outside the moving image adaptation area.

The invention's effect

By introducing the three-dimensional all-round video / still image providing system corresponding to the portable information terminal according to the present invention, a map system using a three-dimensional map can be constructed on the portable information terminal. By being able to be realized on a portable information terminal, a system using a three-dimensional map can be realized in every scene.
As a result, a realistic and easy-to-understand map can be provided, which can greatly contribute to the spread and promotion of a barrier-free person-friendly map system.

Providing explanatory diagrams of a three-dimensional full-circle moving image and a still image at the current position according to the present invention Providing explanatory diagram of three-dimensional full-circle moving image of designated route according to the present invention FIG. 4 is an explanatory diagram for providing a still image at a current position when outside a moving image adaptation area according to the present invention.

Claims (1)

In a map system using a portable information terminal, a 3D map with a large amount of data is required on the server side, not the terminal side, in order to operate a 3D map that is easier for all users to understand than the current 2D map. By converting to a panoramic video or panoramic still image that covers the entire field of view from various locations, the data volume is reduced, and by providing it in real time or in advance, a 3D map can be displayed on a low-spec mobile information terminal. A system that enables display and operation.