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An accurate and reliable image based fruit detection system is critical for supporting higher level agriculture tasks such as yield mapping and robotic harvesting. This paper presents the use of a state-of-the-art object detection…

Robotics · Computer Science 2017-09-19 Suchet Bargoti , James Underwood

Fruit tree pruning and fruit thinning require a powerful vision system that can provide high resolution segmentation of the fruit trees and their branches. However, recent works only consider the dormant season, where there are minimal…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Zijue Chen , David Ting , Rhys Newbury , Chao Chen

The real-world applications of 3D point clouds have been growing rapidly in recent years, but not much effective work has been dedicated to perceptual quality assessment of colored 3D point clouds. In this work, we first build a large 3D…

Image and Video Processing · Electrical Eng. & Systems 2021-11-11 Honglei Su , Qi Liu , Zhengfang Duanmu , Wentao Liu , Zhou Wang

Close-range laser scanning provides detailed 3D captures of forest stands but requires efficient software for processing 3D point cloud data and extracting individual trees. Although recent studies have introduced deep learning methods for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Josafat-Mattias Burmeister , Andreas Tockner , Stefan Reder , Markus Engel , Rico Richter , Jan-Peter Mund , Jürgen Döllner

Discrete point cloud objects lack sufficient shape descriptors of 3D geometries. In this paper, we present a novel method for aggregating hypothetical curves in point clouds. Sequences of connected points (curves) are initially grouped by…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Tiange Xiang , Chaoyi Zhang , Yang Song , Jianhui Yu , Weidong Cai

We introduce FruitNeRF++, a novel fruit-counting approach that combines contrastive learning with neural radiance fields to count fruits from unstructured input photographs of orchards. Our work is based on FruitNeRF, which employs a neural…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Lukas Meyer , Andrei-Timotei Ardelean , Tim Weyrich , Marc Stamminger

Segmentation of structural parts of 3D models of plants is an important step for plant phenotyping, especially for monitoring architectural and morphological traits. Current state-of-the art approaches rely on hand-crafted 3D local features…

Computer Vision and Pattern Recognition · Computer Science 2022-02-24 Kaya Turgut , Helin Dutagaci , Gilles Galopin , David Rousseau

Aotearoa New Zealand has a strong and growing apple industry but struggles to access workers to complete skilled, seasonal tasks such as thinning. To ensure effective thinning and make informed decisions on a per-tree basis, it is crucial…

In this paper, we introduce a novel conditional generative adversarial network that creates dense 3D point clouds, with color, for assorted classes of objects in an unsupervised manner. To overcome the difficulty of capturing intricate…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Mohammad Samiul Arshad , William J. Beksi

Middle-echo, which covers one or a few corresponding points, is a specific type of 3D point cloud acquired by a multi-echo laser scanner. In this paper, we propose a novel approach for automatic segmentation of trees that leverages…

Computer Vision and Pattern Recognition · Computer Science 2019-09-20 Jonathan Li , Rongren Wu , Yiping Chen , Qing Zhu , Zhipeng Luo , Cheng Wang

Apple(\textit{Malus domestica} Borkh.) trees are deciduous, shedding leaves each year. This process is preceded by a gradual change in leaf color from green to yellow as chlorophyll is degraded prior to abscission. The initiation and rate…

With the capacity of modeling long-range dependencies in sequential data, transformers have shown remarkable performances in a variety of generative tasks such as image, audio, and text generation. Yet, taming them in generating less…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 An-Chieh Cheng , Xueting Li , Sifei Liu , Min Sun , Ming-Hsuan Yang

Labor shortages in fruit crop production have prompted the development of mechanized and automated machines as alternatives to labor-intensive orchard operations such as harvesting, pruning, and thinning. Agricultural robots capable of…

Robotics · Computer Science 2023-04-27 Dawood Ahmed , Ranjan Sapkota , Martin Churuvija , Manoj Karkee

This paper is part of a publication series from the For5G project that has the goal of creating digital twins of sweet cherry trees. At the beginning a brief overview of the revious work in this project is provided. Afterwards the focus…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Andreas Gilson , Peter Pietrzyk , Chiara Paglia , Annika Killer , Fabian Keil , Lukas Meyer , Dominikus Kittemann , Patrick Noack , Oliver Scholz

This paper introduces the 3DCapsule, which is a 3D extension of the recently introduced Capsule concept that makes it applicable to unordered point sets. The original Capsule relies on the existence of a spatial relationship between the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Ali Cheraghian , Lars Petersson

Semantic labeling of 3D point clouds is important for the derivation of 3D models from real world scenarios in several economic fields such as building industry, facility management, town planning or heritage conservation. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2018-05-30 Bernhard Japes , Jennifer Mack , Florian Rist , Katja Herzog , Reinhard Töpfer , Volker Steinhage

Robotic apple harvesting has received much research attention in the past few years due to growing shortage and rising cost in labor. One key enabling technology towards automated harvesting is accurate and robust apple detection, which…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Pengyu Chu , Zhaojian Li , Kyle Lammers , Renfu Lu , Xiaoming Liu

This paper introduces DensePoint, a densely sampled and annotated point cloud dataset containing over 10,000 single objects across 16 categories, by merging different kind of information from two existing datasets. Each point cloud in…

Computer Vision and Pattern Recognition · Computer Science 2018-10-15 Xu Cao , Katashi Nagao

Hypergraph spectral analysis has emerged as an effective tool processing complex data structures in data analysis. The surface of a three-dimensional (3D) point cloud and the multilateral relationship among their points can be naturally…

Signal Processing · Electrical Eng. & Systems 2021-01-01 Songyang Zhang , Shuguang Cui , Zhi Ding

In this paper we address the task of finding representative subsets of points in a 3D point cloud by means of a point-wise ordering. Only a few works have tried to address this challenging vision problem, all with the help of hard to obtain…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Pengwan Yang , Cees G. M. Snoek , Yuki M. Asano