Image processing apparatus, image processing method, and computer readable recording medium

An image processing method comprising:

• acquiring video data;
• estimating a spatial distribution of a predetermined biological component for which a component spectrum temporally varies with respect to image data of multiple frames of a plurality of frames included in the video data;
• generating biological component video data in which the biological component is extracted from the video data based on the estimated spatial distribution of the biological component for which the component spectrum temporally varies in the image data of the multiple frames;
• and
• generating temporal periodic variation video data of the biological component by applying, to the biological component video data, a filter for extracting a periodic variation component including a predetermined frequency.

A non-transitory computer-readable recording medium with an executable program stored thereon, the program causing a processor to execute processes comprising:

• acquiring video data;
• estimating a spatial distribution of a predetermined biological component for which a component spectrum temporally varies with respect to image data of multiple frames of a plurality of frames included in the video data;
• generating biological component video data in which the biological component is extracted from the video data based on the estimated spatial distribution of the biological component for which the component spectrum temporally varies in the image data of the multiple frames;
• and
• generating temporal periodic variation video data of the biological component by applying, to the biological component video data, a filter for extracting a periodic variation component including a predetermined frequency.