Image processing apparatus and image processing method

An image processing method comprising:

• acquiring a planar image showing a polarization state of a subject;
• acquiring a three-dimensional tomographic image including a plurality of two-dimensional tomographic images of the subject;
• displaying, on a display unit, an index indicating a position of a tomographic image to be displayed on the display unit among the plurality of two-dimensional tomographic images by superimposing the index on the planar image showing the polarization state;
• and
• giving an instruction to change a position of the index on the planar image showing the polarization state.

An image processing apparatus comprising:

• an eye fundus image acquisition unit configured to acquire an eye fundus image showing a polarization state of an eye fundus of an eye to be examined;
• a tomographic image acquisition unit configured to acquire a three-dimensional tomographic image including a plurality of two-dimensional tomographic images of the eye fundus of the eye to be examined;
• a display control unit configured to display, on the display unit, a first index, which shows a position of a tomographic image to be displayed on a display unit among the plurality of two-dimensional tomographic images, and a second index different from the first index, by superimposing the first index and the second index on the eye fundus image showing the polarization state;
• and
• an instruction unit configured to give an instruction to change a position of the second index, while in a state where a position of the first index is fixed on the eye fundus image showing the polarization state.

An image processing method comprising:

• acquiring an eye fundus image showing the polarization state of an eye fundus of an eye to be examined;
• acquiring a three-dimensional tomographic image including a plurality of two-dimensional tomographic images of the eye fundus of the eye to be examined;
• displaying, on the display unit, a first index, which shows a position of a tomographic image to be displayed on the display unit among the plurality of two-dimensional tomographic images, and a second index different from the first index, by superimposing the first index and the second index on the eye fundus image showing the polarization state;
• and
• giving an instruction to change a position of the second index, while in a state where a position of the first index is fixed on the eye fundus image showing the polarization state.