title: Overview of sensor technologies used for 3D localization of asparagus spears for robotic harvesting

authors: Peebles, Matthew Christopher Scott

abstract: Advances in agricultural automation, coupled with a general decline of available labour hasgenerated interest in automated harvesting of various crops. Paramount to the success of such systemsis the development of accurate, robust detection technologies and localization strategies. This paperpresents an overview of sensor technologies used in the detection and localization of green aspara-gus spears for robotic harvesting. Tactile, photoelectric, machine vision and time-of-flight sensors areinvestigated and their applicability for use in robotic asparagus harvesting is evaluated. Investigationof previous asparagus harvesting devices has revealed that no such device has yet achieved commer-cial viability. It was identified that this is likely due to weaknesses in currently employed detectiontechnologies, namely slow response times, high sensitivity to changes in ambient lighting conditionsand requirement for frequent manual calibration. Of the sensor technologies investigated it was foundthat time-of-flight cameras, such as the Microsoft Kinect V2 are the most feasible for the detectionof asparagus spears for robotic harvesting. It was concluded that further research would be conductedinto the application of such sensors into a commercially viable harvester.

text: Overview of sensor technologies used for 3D localization of asparagus spears for robotic harvesting Advances in agricultural automation, coupled with a general decline of available labour hasgenerated interest in automated harvesting of various crops. Paramount to the success of such systemsis the development of accurate, robust detection technologies and localization strategies. This paperpresents an overview of sensor technologies used in the detection and localization of green aspara-gus spears for robotic harvesting. Tactile, photoelectric, machine vision and time-of-flight sensors areinvestigated and their applicability for use in robotic asparagus harvesting is evaluated. Investigationof previous asparagus harvesting devices has revealed that no such device has yet achieved commer-cial viability. It was identified that this is likely due to weaknesses in currently employed detectiontechnologies, namely slow response times, high sensitivity to changes in ambient lighting conditionsand requirement for frequent manual calibration. Of the sensor technologies investigated it was foundthat time-of-flight cameras, such as the Microsoft Kinect V2 are the most feasible for the detectionof asparagus spears for robotic harvesting. It was concluded that further research would be conductedinto the application of such sensors into a commercially viable harvester.

year: 2018-08

title: Why do visitors go to museums? The Case of 921 Earthquake Museum, Wufong, Taichung

authors: Ryan, Chris

subjects: museums

abstract: The paper examines the motives and sources of satisfaction of 286 respondents relating to the 921 Earthquake Museum in Taichung, Taiwan. In concludes that income, age and education remain statistically significant determinants of attitudes, and notes the existence of four clusters derived from k-means analysis but supported by a cross-tabulation of cluster types and categories derived from themes identified in responses to open-ended questions. The paper lends some support to the continuum of the authentic to “pure essentialism” while arguing that the latter is a logical corollary of the concept, but in practice will be rare. In that respect the Museum represents a negotiated essentialism in that the core of the Museum is the damaged school, but it has been sanitized. Reference is also made to differing concepts of museums and the literature relating to competing understandings of the roles of museums and why people visit them.

text: Why do visitors go to museums? The Case of 921 Earthquake Museum, Wufong, Taichung The paper examines the motives and sources of satisfaction of 286 respondents relating to the 921 Earthquake Museum in Taichung, Taiwan. In concludes that income, age and education remain statistically significant determinants of attitudes, and notes the existence of four clusters derived from k-means analysis but supported by a cross-tabulation of cluster types and categories derived from themes identified in responses to open-ended questions. The paper lends some support to the continuum of the authentic to “pure essentialism” while arguing that the latter is a logical corollary of the concept, but in practice will be rare. In that respect the Museum represents a negotiated essentialism in that the core of the Museum is the damaged school, but it has been sanitized. Reference is also made to differing concepts of museums and the literature relating to competing understandings of the roles of museums and why people visit them.

year: 2011

title: WERO: A pānui for tauira Māori in psychology

authors: Waitoki, Waikaremoana

abstract: The first WERO pānui was edited in 1991 by the first Māori in psychology at Waikato University, Stephanie Palmer and Linda Waimarie Nikora. This pānui is the third in the WERO series, aiming to continue the legacy of the first publication in 1991 (edited by Stephanie Palmer) and the second in 1992 (edited by Hikitapua). The pānui continues to center diverse Māori perspectives with relevance for those affected by racial oppression in psychology.

text: WERO: A pānui for tauira Māori in psychology The first WERO pānui was edited in 1991 by the first Māori in psychology at Waikato University, Stephanie Palmer and Linda Waimarie Nikora. This pānui is the third in the WERO series, aiming to continue the legacy of the first publication in 1991 (edited by Stephanie Palmer) and the second in 1992 (edited by Hikitapua). The pānui continues to center diverse Māori perspectives with relevance for those affected by racial oppression in psychology.

year: 2024-06-03