| 摘要 |
PROBLEM TO BE SOLVED: To effectively utilize information related on the individual difference of line-of-sight stored in the past. SOLUTION: This device is provided with a recording instruction means 100 storing the information in a storage means 100a when it is discriminated by a discrimination means 100 that an observer is the identical observer of the information stored in the storage means 100a and erasing the information stored in the storage means 100a and storing the newly obtained information when the observer is the different observer of the information stored in the storage means 100a in the case that the information related on the individual difference of the line-of-sight of the observers is stored. |
