Traffic situation display method, traffic situation display system, in-vehicle device, and computer program

A traffic situation display system comprising:

• a road-side device transmitting image data obtained by imaging an imaging region including roads;
• and
• an in-vehicle device receiving the image data transmitted by the road-side device, wherein
• the traffic situation display system displays an image on the basis of the image data received by the in-vehicle device,
• the road-side device includes:
• a storage storing corresponding information in which a pixel coordinate in the image and positional information of the imaging region are corresponded to each other;
• and
• a transmission part transmitting the corresponding information stored in the storage, and
• the in-vehicle device includes:
• a receiving part receiving the corresponding information transmitted by the road-side device;
• an acquiring part acquiring positional information of an own vehicle,
• a specifying part specifying an own vehicle position on the image on the basis of the corresponding information received by the receiving part and the positional information acquired by the acquiring part, and
• a displaying part displaying the own vehicle position specified by the specifying part on the image.

An in-vehicle device connectable to a display device, the in-vehicle device comprising:

• an acquiring part acquiring positional information of an own vehicle;
• a receiving part receiving corresponding information in which pixel coordinates in the image transmitted by a road-side device and the positional information acquired by an acquiring part are associated with each other,
• a specifying part specifying an own vehicle position on the image on the basis of the corresponding information received by the receiving part and the positional information acquired by the acquiring part;
• and
• a displaying part displaying the own vehicle position specified by the specifying part on the image of the display device.

A computer-readable recording medium which stores a computer-executable program for causing an in-vehicle device connectable to both a display device and a road-side device to display an own vehicle position on the display device, the program making the in-vehicle device execute:

• receiving image data obtained by imaging an imaging region including roads;
• specifying the own vehicle position on the image on the basis of corresponding information, in which a pixel coordinate in the image and positional information of the imaging region are corresponded to each other, and positional information of the own vehicle;
• and
• displaying the specified own vehicle position on the image on the basis of the received image data in the display device.