On aerial measurement of infrared imagery of sea surface with infrared line scanner

This paper presents a system of the line scanner with InSb detector of filter band 2.0–5.5 microns, for obtaining infrared imagery from an aero-plane. Since its scanning sector is as large as 80 degrees, wide thermal imagery can easily obtained from comparatively low altitude. Displaying techniques of thermal pattern of sea surface are also discussed.All data were stocked in the four-channel data recorder during measurements and analysed at the laboratory after landing.Colored imagery and contoured imagery were made from the original thermal imagery by using computer.