Photographing device and controlling method thereof, and three-dimensional information measuring device

A photographing device comprising:

• a measurement photography section for photographing a measurement image of a measurement object to obtain three-dimensional information;
• a condition obtaining section for obtaining a photographing condition for photographing the measurement image;
• a pixel resolving power calculation section for calculating pixel resolving power based on the photographing condition;
• a display section for displaying the pixel resolving power that is calculated in the pixel resolving power calculation section;
• a reference pixel resolving power obtaining section for obtaining reference pixel resolving power for photographing the measurement image;
• a display control section for changing a display mode of the display section when it is detected that the pixel resolving power becomes out of a reference range determined based on the reference pixel resolving power;
• a recording section for recording the pixel resolving power or the photographing condition with the measurement image when the measurement image is photographed;
• and
• a selecting section for selecting any measurement image from a plurality of the measurement images,
• wherein the reference pixel resolving power obtaining section obtains pixel resolving power or photographing condition corresponding to the selected measurement image, and determines this pixel resolving power or pixel resolving power obtained from the photographing condition as the reference pixel resolving power.

A three-dimensional information measuring device comprising:

• a photographing device including:
• a measurement photography section for photographing a measurement image of a measurement object to obtain three-dimensional information;
• a condition obtaining section for obtaining a photographing condition for photographing the measurement image;
• a pixel resolving power calculation section for calculating pixel resolving power based on the photographing condition;
• a display section for displaying the pixel resolving power that is calculated in the pixel resolving power calculation section;
• a reference pixel resolving power obtaining section for obtaining reference pixel resolving power for photographing the measurement image;
• a display control section for changing a display mode of the display section when it is detected that the pixel resolving power becomes out of a reference range determined based on the reference pixel resolving power;
• a recording section for recording the pixel resolving power or the photographing condition with the measurement image when the measurement image is photographed;
• and
• a selecting section for selecting any measurement image from a plurality of the measurement images,
• wherein the reference pixel resolving power obtaining section obtains pixel resolving power or photographing condition corresponding to the selected measurement image, and determines this pixel resolving power or pixel resolving power obtained from the photographing condition as the reference pixel resolving power;
• and
• an analyzing section for calculating the three-dimensional information based on the measurement image photographed by the photographing device.

A controlling method of a photographing device, which photographs a measurement image of a measurement object for obtaining three-dimensional information, comprising:

• a calculation step for calculating pixel resolving power from a photographing condition of the measurement image;
• a displaying step for displaying the pixel resolving power on a display section;
• an obtaining step for obtaining reference pixel resolving power in photographing the measurement image;
• a judgment step for judging whether the pixel resolving power becomes out of the reference range determined based on the reference pixel resolving power;
• a changing step for changing display mode of the pixel resolving power on the display section when the pixel resolving power becomes out of the reference range;
• a recording step for recording the pixel resolving power or the photographing condition with the measurement image when the measurement image is photographed;
• and
• a selection step for selecting any measurement image from a plurality of measurement images,
• wherein the pixel resolving power or the photographing condition of the selected measurement image is obtained, and this pixel resolving power or pixel resolving power obtained from the photographing condition is determined as the reference pixel resolving power in the obtaining step.