Hyperspectral Image-based Target Identification Tech Developed in South Korea

The South Korean Defense Science Research Institute (Korean acronym-ADD) has developed a target detection and classification system based on Hyperspectral Imaging for aerial reconnaissance using spectral information unique to objects.

All objects have unique reflection characteristics according to wavelength. It appears differently for each object like a human fingerprint, and by comparing and analyzing the spectral information of an object or background using the principle that light passing through a spectral element such as a prism can be separated by wavelength, the target can be identified.

Hyperspectral Image-based target identification technology is an electro-optical technology that enables automatic identification by analyzing spectral signals of targets that are difficult to distinguish with the naked eye. Not only when the target is camouflaged or a part of the target shape is hidden, but also it is possible to distinguish the real target from the simulated target of the enemy installed to induce an erroneous explosion even though the shape is similar, greatly improving the air reconnaissance target identification ability.

From 2014 to 2021, ADD conducted hyperspectral technology research for aircraft mounting through the Defense Acquisition Program Administration(DAPA)'s core technology business. Through this, a number of major components such as spectroscopic elements and detectors, which had been dependent on imports, were secured with domestic technology.

In addition, in order to apply hyperspectral technology to the aerial reconnaissance system, a prototype that meets the environmental conditions required when installing an aircraft was manufactured, environmental tests for durability check were performed without any setback, and function/performance tests including aerial photography tests were developed. The test evaluation was performed successfully.

Through this research result, ADD has laid the technical foundation for military hyperspectral image-based target identification technology to be applied to domestic surveillance and reconnaissance systems. This is expected to overcome the technical limitations of the existing reconnaissance system and become a cornerstone for the development of a new concept of target identification technology.