Pointer information processing device, computer-readable recording medium and conference system

A non-transitory computer-readable recording medium having stored therein a pointer information processing program for causing a computer to execute a process comprising:

• acquiring a position of a conference participant in a first image captured toward the conference participant;
• detecting a light-emitting point of a laser pointer by binarizing a pixel value included in each pixel within the first image based on a predetermined threshold value;
• detecting a radiated point of the laser pointer by binarizing a pixel value included in each pixel within a second image captured toward an object to which the laser pointer radiates a laser light based on a predetermined threshold value;
• identifying the conference participant that is using the laser pointer having the light-emitting point by comparing a position of the detected light-emitting point within the first image to the acquired position of the conference participant;
• associating the detected light-emitting point with the detected radiated point upon a condition that the detected light-emitting point and the detected radiated point are each singular;
• and
• recording respective position information of the detected light-emitting point and the detected radiated point associated with each other at the associating and information about the conference participant identified at the identifying in a storage unit in an associated manner.

A conference system for conducting a remote conference between information processing devices provided in each of conference rooms in difference places, one of the information processing devices comprising:

• a memory;
• and
• a processor coupled to the memory, wherein the processor executes a process comprising:
• acquiring a position of a conference participant in a first image captured toward the conference participant;
• detecting a light-emitting point of a laser pointer by binarizing a pixel value included in each pixel within the first image based on a predetermined threshold value;
• detecting a radiated point of the laser pointer by binarizing a pixel value included in each pixel within a second image captured toward an object to which the laser pointer radiates a laser light based on a predetermined threshold value;
• identifying the conference participant that is using the laser pointer having the light-emitting point by comparing a position of the detected light-emitting point within the first image to the acquired position of the conference participant;
• associating the detected light-emitting point with the detected radiated point upon a condition that the detected light-emitting point and the detected radiated point are each singular;
• and
• recording respective position information of the detected light-emitting point and the detected radiated point associated with each other at the associating and information about the conference participant identified at the identifying in the memory in an associated manner;
• and
• transmitting the position information of the recorded radiated point and the information about the conference participant associated with the position information to the information processing device provided within another conference room.