Image displaying method

An image displaying method executed by using a cross sectional image storage configured to store a cross sectional image group including multiple cross sectional images each of which is associated with time and expresses a cross section intersecting at least one blood vessel of a living body;

• a phase image storage configured to store a phase image group including multiple phase images each of which is associated with time and expresses chronological variation of phase difference at a cross section intersecting at least one blood vessel of the living body and each of which is acquired based on detection results of interference light used for acquisition of a cross sectional image;
• and a display, comprising:
• obtaining a time corresponding to one of a cross sectional image included in the cross sectional image group and a phase image included in the phase image group;
• synchronizing the one of the cross sectional image included in the cross sectional image group and the phase image included in the phase image group based on the obtained time;
• and
• synchronously and superposedly displaying, on the display, the one of the cross sectional image included in the cross sectional image group and the phase image included in the phase image group using the obtained time associated with the cross sectional image and the phase image.

An image displaying method executed by using:

• a living body image storage configured to store a living body image acquired by photographing a living body;
• a blood vessel management information storage configured to store blood vessel management information including blood vessel location information that expresses location of at least one blood vessel in the living body image and blood vessel identification information corresponding to this blood vessel;
• a phase image storage configured to store phase management information that includes a phase image group including multiple phase images each of which is associated with time and expresses chronological variation of phase difference at a cross section intersecting at least one blood vessel of the living body and blood vessel identification information of a blood vessel intersecting a cross section corresponding to the phase image group;
• a phase blood vessel management information storage configured to store phase blood vessel management information including phase blood vessel location information that expresses location of a blood vessel in the phase image and blood vessel identification information of this blood vessel;
• a display;
• a blood vessel classification designating operation receiver that includes an input device to receive a user's input;
• a blood vessel classification management information storage configured to store blood vessel classification management information including blood vessel identification information and blood vessel classification information that expresses whether a blood vessel is a vein or an artery;
• and dedicated circuits configured, or a processing device programmed to perform, as a blood vessel classification management information accumulator, comprising:
• a display step in which the display displays the living body image and a phase image included in the phase image group that is associated with one blood vessel identification information;
• a blood vessel classification designating operation receiving step in which the blood vessel classification designating operation receiver receives blood vessel classification designating operation for designating location of a vein or an artery in the living body image displayed by the display step;
• and
• a blood vessel classification management information accumulating step in which the blood vessel classification management information accumulator obtains blood vessel identification information corresponding to the location designated by the blood vessel designating operation, and accumulates, in the blood vessel classification management information storage, blood vessel classification management information including this blood vessel identification information and the blood vessel classification information that expresses whether the blood vessel designated by the blood vessel designating operation is a vein or an artery, wherein
• in the display step, the display obtains the blood vessel identification information and the phase blood vessel location information corresponding to the phase image displayed in the display step from the phase blood vessel management information, obtains the blood vessel classification information corresponding to this blood vessel identification information from the blood vessel classification management information, and displays the location expressed by the phase blood vessel location information corresponding to the blood vessel identification information of the phase image in a different display aspect from other locations, wherein the display aspect thereof depends on whether the blood vessel classification information corresponding to this phase blood vessel location information is information expressing a vein or information expressing an artery.