An investigation into the parameters influencing neural network based facial recognition
- Authors: Oerder, Stacy-Ann
- Date: 2012-09-05
- Subjects: Face perception - Data processing , Neural networks (Computer science) , Image processing - Digital techniques , Pattern recognition systems
- Type: Thesis
- Identifier: uj:9584 , http://hdl.handle.net/10210/7007
- Description: D.Ing. , This thesis deals with an investigation into facial recognition and some variables that influence the performance of such a system. Firstly there is an investigation into the influence of image variability on the overall recognition performance of a system and secondly the performance and subsequent suitability of a neural network based system is tested. Both tests are carried out on two distinctly different databases, one more variable than the other. The results indicate that the greater the amount of variability the more negatively affected is the performance rating of a specific facial recognition system. The results further indicate the success with the implementation of a neural network system over a more conventional statistical system.
- Full Text:
- Authors: Oerder, Stacy-Ann
- Date: 2012-09-05
- Subjects: Face perception - Data processing , Neural networks (Computer science) , Image processing - Digital techniques , Pattern recognition systems
- Type: Thesis
- Identifier: uj:9584 , http://hdl.handle.net/10210/7007
- Description: D.Ing. , This thesis deals with an investigation into facial recognition and some variables that influence the performance of such a system. Firstly there is an investigation into the influence of image variability on the overall recognition performance of a system and secondly the performance and subsequent suitability of a neural network based system is tested. Both tests are carried out on two distinctly different databases, one more variable than the other. The results indicate that the greater the amount of variability the more negatively affected is the performance rating of a specific facial recognition system. The results further indicate the success with the implementation of a neural network system over a more conventional statistical system.
- Full Text:
The performance of a municipality water reticulation ground-coupled reversible heat pump
- Authors: Oerder, Stacy-Ann
- Date: 2014-02-10
- Subjects: Heat pumps , Air conditioning , Heat exchangers
- Type: Thesis
- Identifier: uj:3728 , http://hdl.handle.net/10210/9108
- Description: M.Ing. (Mechanical Engineering) , A reversible ground source heat pump, coupled to a municipality water reticulation system, is investigated as an alternative to conventional air source systems for space heating and cooling. The investigation was executed through the development of analytical models that were used for the design of a ground-coupled reversible heat pump and a conventional, also reversible air source system. The models were verified with experimental measurements. The results of the models and measurements indicate that ground source systems are a cost effective alternative.
- Full Text:
- Authors: Oerder, Stacy-Ann
- Date: 2014-02-10
- Subjects: Heat pumps , Air conditioning , Heat exchangers
- Type: Thesis
- Identifier: uj:3728 , http://hdl.handle.net/10210/9108
- Description: M.Ing. (Mechanical Engineering) , A reversible ground source heat pump, coupled to a municipality water reticulation system, is investigated as an alternative to conventional air source systems for space heating and cooling. The investigation was executed through the development of analytical models that were used for the design of a ground-coupled reversible heat pump and a conventional, also reversible air source system. The models were verified with experimental measurements. The results of the models and measurements indicate that ground source systems are a cost effective alternative.
- Full Text:
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