Communication terminal, image displaying system, processing method in a communication terminal, and computer program

A communication terminal comprising:

• a receiving unit that receives an airwave carrying images;
• a communicating unit that receives additional information from a server device via a communication network, the additional information being information added to the images carried by the airwave received by the receiving unit and including coordinate information showing a coordinate of a position within the images, the coordinate information corresponding to a time, the time relating to the images;
• a displaying unit that displays on a display area the image carried by the airwave received by the receiving unit;
• an input unit that receives an input of an instruction by a user identifying a position within the display area;
• and
• an executing unit that executes a process in response to a result of a comparison of a first position and a second position, the first position being a position identified by the instruction received by the receiving unit when the images are displayed in the display area by the displaying unit, the second position being a position having a coordinate shown by the coordinate information included in the images received by the communicating unit.

A processing method comprising:

• receiving an airwave carrying images;
• receiving additional information from a server device via a communication network, the additional information being information added to the images carried by the received airwave and including coordinate information showing a coordinate of a position within the images, the coordinate information corresponding to a time, the time relating to the images;
• displaying on a display area the image carried by the received airwave;
• receiving an input of an instruction identifying a position within the display area by a user;
• and
• executing a process in response to a result of a comparison of a first position and a second position, the first position being a position identified by the received instruction when the images are displayed in the display area, the second position being a position having a coordinate shown by the received coordinate information.

A program causing a computer to execute a process, the process comprising:

• receiving an airwave carrying images;
• receiving additional information from a server device via a communication network, the additional information being information added to the images carried by the received airwave and including coordinate information showing a coordinate of a position within the images, the coordinate information corresponding to a time, the time relating to the images;
• displaying on a display area the image carried by the received airwave;
• receiving an input by a user of an instruction identifying a position within the display area;
• and
• executing a process in response to a result of a comparison of a first position and a second position, the first position being a position identified by the received instruction when the images are displayed in the display area, the second position being a position having a coordinate shown by the received coordinate information.