A control method, computer readable medium, and imaging apparatus for diagnosis being configured to create a tomographic image are disclosed. The method includes obtaining ultrasound line data oriented in a radial direction from a rotation center based on a signal obtained by executing the scanning; obtaining optical interference line data oriented in a radial direction from the rotation center based on a signal obtained by executing the scanning; identifying a line or a group of lines having a same feature out of each line data of the ultrasound tomographic image and the optical tomographic image; determining segmentation positions for a bundle of lines corresponding to at least a single frame included in each tomographic image from each line data of the ultrasound tomographic image and the optical tomographic image with respect to the identified line or group of lines; and creating a tomographic image from the determined bundle of lines.