Display method, non-transitory recording medium, and display device

A non-transitory recording medium storing thereon a computer program, which when executed by a processor, causes the processor to perform operations including:

• capturing, by an imaging sensor, a still image lit up by a transmitter that transmits a signal by luminance change of light as a subject to obtain a first captured image with a first exposure time;
• capturing, by the imaging sensor, the still image to obtain a second captured image with a second exposure time which is longer than the first exposure time;
• decoding the signal from the first captured image;
• determining whether identification information included in each of a plurality of sets is identical to the decoded signal, the plurality of sets of (i) the identification information and (ii) video being stored in a memory;
• reading the video included in each of the sets with the identification information identical to the decoded signal from the memory;
• and
• superimposing the video on a target region corresponding to the subject in the second captured image for display on a display,
• wherein in the superimposing, out of a plurality of images included in the video, the plurality of images is sequentially displayed from a leading image identical to the still image,
• wherein, out of a captured region of the imaging sensor, only an image projected on a display region smaller than the captured region is displayed on the display,
• wherein, in the superimposing, when a projection region on which the subject is projected in the captured region is larger than the display region, out of the projection region, an image obtained by a portion exceeding the display region is not displayed on the display,
• wherein, when horizontal and vertical widths of the display region are w1 and h1, respectively, and horizontal and vertical widths of the projection region are w2 and h2, respectively,
• wherein, in the superimposing, when a larger value of h2/h1 and w2/w1 is equal to or greater than a predetermined value, the video is displayed on an entire screen of the display, and
• when the larger value of h2/h1 and w2/w1 is less than the predetermined value, the video is superimposed on the target region in the second captured image and displayed on the display.

An apparatus comprising:

• an imaging sensor;
• a processor;
• and
• a memory storing thereon a computer program, which when executed by the processor, causes the processor to perform operations including:
• capturing, by the imaging sensor, a still image lit up by a transmitter that transmits a signal by luminance change of light as a subject to obtain a first captured image with a first exposure time;
• capturing, by the imaging sensor, the still image to obtain a second captured image with a second exposure time which is longer than the first exposure time;
• decoding the signal from the first captured image;
• determining whether identification information included in each of a plurality of sets is identical to the decoded signal, the plurality of sets of (i) the identification information and (ii) video being stored in a memory;
• reading the video included in each of the sets with the identification information identical to the decoded signal from the memory;
• and
• superimposing the video on a target region corresponding to the subject in the second captured image for display on a display,
• wherein in the superimposing, out of a plurality of images included in the video, the plurality of images is sequentially displayed from a leading image identical to the still image,
• wherein, out of a captured region of the imaging sensor, only an image projected on a display region smaller than the captured region is displayed on the display,
• wherein, in the superimposing, when a projection region on which the subject is projected in the captured region is larger than the display region, out of the projection region, an image obtained by a portion exceeding the display region is not displayed on the display,
• wherein, when horizontal and vertical widths of the display region are w1 and h1, respectively, and horizontal and vertical widths of the projection region are w2 and h2, respectively,
• wherein, in the superimposing, when a larger value of h2/h1 and w2/w1 is equal to or greater than a predetermined value, the video is displayed on an entire screen of the display, and
• when the larger value of h2/h1 and w2/w1 is less than the predetermined value, the video is superimposed on the target region in the second captured image and displayed on the display.