Leaving the Lines Behind: Vision-Based Crop Row Exit for Agricultural Robot Navigation
This addresses a specific navigation challenge for agricultural robots, but it is incremental as it builds on existing vision-based frameworks.
The paper tackled the problem of enabling agricultural robots to autonomously exit crop rows using only vision-based methods, achieving navigation into headland areas with an error margin of 50 cm.
Usage of purely vision based solutions for row switching is not well explored in existing vision based crop row navigation frameworks. This method only uses RGB images for local feature matching based visual feedback to exit crop row. Depth images were used at crop row end to estimate the navigation distance within headland. The algorithm was tested on diverse headland areas with soil and vegetation. The proposed method could reach the end of the crop row and then navigate into the headland completely leaving behind the crop row with an error margin of 50 cm.