Topological and spatial analysis of within-tree fruiting characteristics for walnut trees

Wang, Ying-Tsui; Bailey, Brian N.; Fu, King-Sun; Shackel, Kenneth A.

doi:10.1016/j.scienta.2023.112127

Cited by 3 publications

(1 citation statement)

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“…In providing high-resolution spatially explicit data, ground-based laser scanning is becoming established in precision forest inventory as a non-destructive but reliable means of characterizing crop structures and geometry. TLS, in particular, has been used by Schindler et al [ 13 ] and Wang et al [ 14 ] to analyze walnut tree allometry and fruit location, respectively, by Schindler et al [ 15 ] to estimate tree parameters in a wild cherry agroforestry system, and by Torres-Sánchez et al [ 16 ] to estimate tree crown parameters and characterize pear and peach orchards geometries.…”

Section: Introductionmentioning

confidence: 99%

A Handheld Laser-Scanning-Based Methodology for Monitoring Tree Growth in Chestnut Orchards

Pereira-Obaya,

Cabo,

Ordóñez

et al. 2024

Sensors

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Chestnut and chestnut byproducts are of worldwide interest, so there is a constant need to develop faster and more accurate monitoring techniques. Recent advances in simultaneous localization and mapping (SLAM) algorithms and user accessibility have led to increased use of handheld mobile laser scanning (HHLS) in precision agriculture. We propose a tree growth monitoring methodology, based on HHLS point cloud processing, that calculates the length of branches through spatial discretization of the point cloud for each tree. The methodology was tested by comparing two point clouds collected almost simultaneously for each of a set of sweet chestnut trees. The results obtained indicated that our HHLS method was reliable and accurate in efficiently monitoring sweet chestnut tree growth. The same methodology was used to calculate the growth of the same set of trees over 37 weeks (from spring to winter). Differences in week 0 and week 37 scans showed an approximate mean growth of 0.22 m, with a standard deviation of around 0.16 m reflecting heterogeneous tree growth.

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