Search Results for author: Ranjan Sapkota

Found 7 papers, 0 papers with code

Immature Green Apple Detection and Sizing in Commercial Orchards using YOLOv8 and Shape Fitting Techniques

no code implementations8 Dec 2023 Ranjan Sapkota, Dawood Ahmed, Martin Churuvija, Manoj Karkee

This superiority is evident from the metrics: the RMSE values (2. 35 mm for Azure Kinect vs. 9. 65 mm for Realsense D435i), MAE values (1. 66 mm for Azure Kinect vs. 7. 8 mm for Realsense D435i), and the R-squared values (0. 9 for Azure Kinect vs. 0. 77 for Realsense D435i).

Instance Segmentation Management +4

Creating Image Datasets in Agricultural Environments using DALL.E: Generative AI-Powered Large Language Model

no code implementations17 Jul 2023 Ranjan Sapkota, Dawood Ahmed, Manoj Karkee

Similar to these measures, human evaluation also showed that images generated using image-to-image-based method were more realistic compared to those generated with text-to-image approach.

Decision Making Image Generation +3

Machine Vision System for Early-stage Apple Flowers and Flower Clusters Detection for Precision Thinning and Pollination

no code implementations19 Apr 2023 Salik Ram Khanal, Ranjan Sapkota, Dawood Ahmed, Uddhav Bhattarai, Manoj Karkee

Early-stage identification of fruit flowers that are in both opened and unopened condition in an orchard environment is significant information to perform crop load management operations such as flower thinning and pollination using automated and robotic platforms.

Management Navigate +2

Site-specific weed management in corn using UAS imagery analysis and computer vision techniques

no code implementations31 Dec 2022 Ranjan Sapkota, John Stenger, Michael Ostlie, Paulo Flores

The objective of this study was to perform site-specific weed control (SSWC) in a corn field by 1) using an unmanned aerial system (UAS) to map the spatial distribution information of weeds in the field; 2) creating a prescription map based on the weed distribution map, and 3) spraying the field using the prescription map and a commercial size sprayer.

Management

Using UAS Imagery and Computer Vision to Support Site-Specific Weed Control in Corn

no code implementations2 Jun 2022 Ranjan Sapkota, Paulo Flores

Currently, weed control in a corn field is performed by a blanket application of herbicides that do not consider spatial distribution information of weeds and also uses an extensive amount of chemical herbicides.

UAS Imagery and Computer Vision for Site-Specific Weed Control in Corn

no code implementations26 Apr 2022 Ranjan Sapkota, Paulo Flores

Currently, weed control in a corn field is performed by a blanket application of herbicides which do not consider spatial distribution information of weeds and also uses an extensive amount of chemical herbicides.

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