Research on an Improved Segmentation Recognition Algorithm of Overlapping .

Sensors (Basel)

School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.

Published: May 2022

The accurate identification of overlapping in a factory environment is one of the challenges faced by automated picking. In order to better segment the complex adhesion between , this paper proposes a segmentation recognition algorithm for overlapping . This algorithm calculates the global gradient threshold and divides the image according to the image edge gradient feature to obtain the binary image. Then, the binary image is filtered and morphologically processed, and the contour of the overlapping area is obtained by edge detection in the Canny operator, the convex hull and concave area are extracted for polygon simplification, and the vertices are extracted using Harris corner detection to determine the segmentation point. After dividing the contour fragments by the dividing point, the branch definition algorithm is used to merge and group all the contours of the same . Finally, the least squares ellipse fitting algorithm and the minimum distance circle fitting algorithm are used to reconstruct the outline of , and the demand information of picking is obtained. The experimental results show that this method can effectively overcome the influence of uneven illumination during image acquisition and be more adaptive to complex planting environments. The recognition rate of in overlapping situations is more than 96%, and the average coordinate deviation rate of the algorithm is less than 1.59%.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9146322PMC
http://dx.doi.org/10.3390/s22103946DOI Listing

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