Browsing by Author "Au, Chi Kit"

• Development and experimental analysis of a pneumatic based dibbling machine for a forestry nursery 

  McGuinness, Benjamin John; Duke, Mike; Lim, Shen Hin; Au, Chi Kit (MDPI AG, 2022)

  The rejection rate of tree stock in a forestry nursery can be as high as 35%. This is attributed to plant physiology, poorly trained seasonal workers and unsophisticated equipment. It is estimated that approximately 5% of ...

  

• Garment pattern definition, development and application with associative feature approach 

  Au, Chi Kit; Ma, Y.-S. (Elsevier, 2010)

  Garment virtual design has been evolved significantly with the rapid development of 3D CAD tools, especially with the convenient availability of NURBS surface modeling capability. Parametric development of clothes is ...

• Ground Plane Segmentation of Time-of-Flight Images for Asparagus Harvesting 

  Peebles, Matthew Christopher Scott; Lim, Shen Hin; Streeter, Lee; Duke, Mike; Au, Chi Kit (IEEE, 2018)

  A key task in processing time-of-flight images for the detection of asparagus spears is the identification and segmentation of the ground plane. In this paper, we aim to compare the performance of RANSAC with a modified ...

  

• Integration of stereo vision system calibration and kinematic calibration for an autonomous kiwifruit harvesting system 

  Au, Chi Kit; Lim, Shen Hin; Duke, Mike; Kuang, Ye Chow; Redstall, Michael; Ting, Chia-nan (Springer, 2022-10-17)

  Stereo vision system and manipulator are two major components of an autonomous fruit harvesting system. In order to raise the fruit-harvesting rate, stereo vision system calibration and kinematic calibration are two ...

  

• Orienting a protein model by crossing number to generate the characteristic views for identification 

  Au, Chi Kit; Cai, Yiyu; Zheng, Jianmin; Woo, Tony (Tech Science Press, 2010)

  A protein model (such as a ribbon model) can be created from the atomic coordinates in the protein data base files. These coordinates are obtained by X-ray crystallography or NMR spectroscopy with the protein arbitrarily ...

• Time-of-flight perception pipeline for selective green asparagus harvesting: Theory and application 

  Peebles, Matthew Christopher Scott (The University of Waikato, 2021)

  Generally declining labour markets, coupled with a significant increase in the projected global population have raised concerns over a potential food scarcity crisis. In response to this, the agricultural industry is ...

  

• Incorporating contact area in soft finger grasp models 

  Fernandez-Ritchie, Tara (The University of Waikato, 2021)

  The ability to grasp is a significant function of many robotic hands, whether it be for fruit-picking or manufacturing tasks. Two major theories often used in conjunction to model grasping are Nguyen’s theorem and Coulomb’s ...

  

• Real-time New Zealand sign language translator using convolution neural network 

  Jayasekera, Mathes Kankanamge Chami (The University of Waikato, 2021)

  Over the past quarter of a century, machine Learning performs an essential role in information technology revolution. From predictive internet web browsing to autonomous vehicles; machine learning has become the heart of ...

  

• Mana Motuhake Ringa: The non-invasive neural interface based artificial hand 

  Owen, Mahonri William (The University of Waikato, 2019)

  Ten million people on the earth at any given time suffer from the loss or lack of a limb. Three million of these are upper extremity amputees. No matter the cause or reason for amputation the amputees’ life is never the ...

  

• Prismatic axis, differential-drive robotic kiwifruit harvester for reduced cycle time 

  Barnett, Josh (The University of Waikato, 2018)

  The New Zealand kiwifruit industry is currently worth over NZD 2 billion in annual sales revenue, this is forecast to double within the next 5-10 years due to a significant increase in production volume. The industry is ...

  

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