Abstract: Airborne multi-aperture panoramic image compositing technology generates panoramic images with high resolution and rich details by stitching images from multiple sub-aperture or sensors, which plays an important role in many key fields such as national defense and security, agriculture and forestry, and digital surveillance. This paper introduces the development background of airborne multi-aperture panoramic image compositing technology, expounds the basic concepts and steps of panoramic image compositing, combs through the classification and development of its core parts - image registration technology and image fusion technology, and summarizes the characteristics and limitations of the current mainstream methods. Finally, combined with the current development status of air-borne multi-aperture panoramic image compositing technology, the bottleneck problem of airborne multi-aperture panoramic image compositing technology is revealed. In addition, the future research direction and possible technical ways to solve these problems are also prospected, which provides useful enlightenment for the technological progress and application expansion in related fields.

Key words: panoramic image compositing, image registration, image fusion, multi-aperture detection, UAV remote sensing