WE CLAIM:
1. A position correcting device comprising:
an image acquiring unit for acquiring an image;
a feature extracting unit for extracting multiple feature parts from the image acquired by the image acquiring unit;
a display unit for performing a process of displaying the image including the feature parts;
a position acquiring unit for acquiring position information about the feature parts specified on the image including the feature parts; and
a position correcting unit for correcting the position information acquired by the position acquiring unit on a basis of pieces of position information about the multiple feature parts extracted by the feature extracting unit.
2. The position correcting device according to claim 1,
further comprising a conversion processing unit for converting
the image acquired by the image acquiring unit into an image
in which a shooting direction is changed virtually,
wherein the feature extracting unit extracts multiple feature parts from the image converted by the conversion processing unit.
3. The position correcting device according to claim 1 or
2,
wherein the feature extracting unit extracts points in the image as the feature parts.
4. The position correcting device according to claim 1 or
2,

wherein the feature extracting unit extracts lines in the image as the feature parts.
5. A position correcting method comprising:
acquiring, by an image acquiring unit, an image;
extracting, by a feature extracting unit, multiple
feature parts from the image acquired by the image acquiring unit;
performing, by a display unit, a process of displaying the image including the feature parts;
acquiring, by a position acquiring unit, position information about the feature parts specified on the image including the feature parts; and
correcting, by a position correcting unit, the position information acquired by the position acquiring unit on a basis of pieces of position information about the multiple feature parts extracted by the feature extracting unit.
6. The position correcting method according to claim 5,
further comprising
converting, by a conversion processing unit, the image acquired by the image acquiring unit into an image in which a shooting direction is changed virtually; and
extracting, by the feature extracting unit, multiple feature parts from the image converted by the conversion processing unit.