Fruit yield prediction and estimation in orchards: A state-of-the-art comprehensive review for both direct and indirect methods

L He, W Fang, G Zhao, Z Wu, L Fu, R Li… - … and Electronics in …, 2022 - Elsevier
Orchard pre-harvest yield data is important for fruit growers, which can be used for economic
benefit evaluation, management mode adjustment and so on. However, traditional manual …

Technologies for forecasting tree fruit load and harvest timing—from ground, sky and time

NT Anderson, KB Walsh, D Wulfsohn - Agronomy, 2021 - mdpi.com
The management and marketing of fruit requires data on expected numbers, size, quality
and timing. Current practice estimates orchard fruit load based on the qualitative …

Predicting individual apple tree yield using UAV multi-source remote sensing data and ensemble learning

R Chen, C Zhang, B Xu, Y Zhu, F Zhao, S Han… - … and Electronics in …, 2022 - Elsevier
As one of the world's most popular fruit, apple tree yield prediction before harvest plays an
important role in optimizing orchard nutrition management, especially at the individual tree …

[HTML][HTML] The radiometric accuracy of the 8-band multi-spectral surface reflectance from the planet SuperDove constellation

YH Tu, K Johansen, B Aragon, MM El Hajj… - International Journal of …, 2022 - Elsevier
Advances in the capabilities of commercial CubeSat constellations have enabled the
retrieval of multi-spectral surface reflectance data over the Earth's terrestrial surfaces on an …

Optimising drone flight planning for measuring horticultural tree crop structure

YH Tu, S Phinn, K Johansen, A Robson… - ISPRS Journal of …, 2020 - Elsevier
In recent times, multi-spectral drone imagery has proved to be a useful tool for measuring
tree crop canopy structure. In this context, establishing the most appropriate flight planning …

Using multi-spectral UAV imagery to extract tree crop structural properties and assess pruning effects

K Johansen, T Raharjo, MF McCabe - Remote Sensing, 2018 - mdpi.com
Unmanned aerial vehicles (UAV) provide an unprecedented capacity to monitor the
development and dynamics of tree growth and structure through time. It is generally thought …

Mango fruit load estimation using a video based MangoYOLO—Kalman filter—hungarian algorithm method

Z Wang, K Walsh, A Koirala - Sensors, 2019 - mdpi.com
Pre-harvest fruit yield estimation is useful to guide harvesting and marketing resourcing, but
machine vision estimates based on a single view from each side of the tree (“dual-view”) …

Predicting biomass and yield in a tomato phenotyping experiment using UAV imagery and random forest

K Johansen, MJL Morton, Y Malbeteau… - Frontiers in Artificial …, 2020 - frontiersin.org
Biomass and yield are key variables for assessing the production and performance of
agricultural systems. Modeling and predicting the biomass and yield of individual plants at …

Maturity estimation of mangoes using hyperspectral imaging from a ground based mobile platform

A Wendel, J Underwood, K Walsh - Computers and Electronics in …, 2018 - Elsevier
Monitoring the maturity of fruit in commercial orchards can help growers optimise the time of
harvest. Dry matter content (DM) of fruit is used as an indicator of mango maturity, measured …

A methodology based on GEOBIA and WorldView-3 imagery to derive vegetation indices at tree crown detail in olive orchards

F Solano, S Di Fazio, G Modica - … Journal of Applied Earth Observation and …, 2019 - Elsevier
Precision agriculture (PA) is becoming an essential practice for the implementation of
sustainable agriculture that encompasses the efficient use of resources and a systematic …