1. The fisheye lens automatically maintains a horizontal position: A compact fisheye camera lens, specifically designed for measuring plant canopy structures, is mounted on a handheld gimbal stabilizer, automatically maintaining the lens in a horizontal position without the need for a tripod;

2. The fisheye lens can be extended into the canopy: The lens is mounted at one end of the boom arm. Due to its compact size and measurement rod, it can be conveniently extended horizontally forward or vertically upward to different heights within the canopy, enabling rapid layered measurements to determine the vertical distribution of light transmittance and leaf area index within the canopy;

3. Image analysis software: The image analysis software allows arbitrary definition of image analysis regions (10 zones for zenith angle and 10 zones for azimuth angle).

4. Ability to exclude unreasonable canopy sections: When conducting regional analysis of canopies in different directions, users can arbitrarily exclude ground features and unreasonable canopy sections (such as missing plants or edge row issues). By selecting different zenith angle start and end angles, users can avoid canopy pore conditions that do not meet the criteria for calculating canopy structural parameters. Through manual adjustment of thresholds, users can more accurately measure parameters such as leaf area index.