title: Maximizing precision over extended unambiguous range for TOF range imaging systems

authors: Jongenelen, Adrian P.P.

subjects: range imaging

abstract: The maximum unambiguous range for time-of-flight range imaging systems is inversely proportional to the chosen modulation frequency. However, increasing the unambiguous range by decreasing the modulation frequency will generally also degrade the range measurement precision. We describe a technique that significantly extends the range of a time-of-flight imaging system without compromising range precision. This is achieved by employing two modulation frequencies simultaneously. The chosen frequencies can be a combination of high and low frequency, or two similarly high frequencies. In this paper we present experimental results comparing single frequency; dual high and low frequency; and dual high frequency operation and demonstrate that range precision need not be appreciably compromised to achieve an extended unambiguous range.

text: Maximizing precision over extended unambiguous range for TOF range imaging systems The maximum unambiguous range for time-of-flight range imaging systems is inversely proportional to the chosen modulation frequency. However, increasing the unambiguous range by decreasing the modulation frequency will generally also degrade the range measurement precision. We describe a technique that significantly extends the range of a time-of-flight imaging system without compromising range precision. This is achieved by employing two modulation frequencies simultaneously. The chosen frequencies can be a combination of high and low frequency, or two similarly high frequencies. In this paper we present experimental results comparing single frequency; dual high and low frequency; and dual high frequency operation and demonstrate that range precision need not be appreciably compromised to achieve an extended unambiguous range.

year: 2010

title: Global Environmental Change and the Politics of Sustainable Consumption in New Zealand

authors: Lewin, Joanna Alice

subjects: Global environmental change

abstract: Consumption has emerged as a pivotal concept in environmental sustainability debates. Since the 1992 Earth Summit, there has been an increasing focus on the role that consumption and consumer lifestyles play in global environmental change. Agenda 21 called on countries to promote more 'sustainable consumption' patterns and lifestyles. Despite these recommendations, there are significant political and ideological challenges to implementing effective sustainable consumption policies at a global and national level.

This thesis explores the politics of sustainable consumption in New Zealand. Using critical discourse analysis and in-depth semi-structured interviews with nine consumers, I employ post-structural and cultural geography theories to unpack the problematic nature of sustainable consumption. In particular, I examine dominant environmental and consumption discourses to explore why barriers to sustainable consumption exist. It is important to examine these issues from a socio-cultural perspective, as the dominant hegemonic discourses relating to the environment and sustainability shape both policy responses and public understandings of environmental change and sustainability issues.

Prevailing policy responses to environmental change in New Zealand construct the 'environmental problem' in narrowly scientific and economic terms. Concern has centred on 'managing' carbon emissions, rather than addressing the underlying drivers of environmental degradation which lie in current political-economic structures and consumption levels. As such, environmental policy has been embedded within an ecological modernisation discourse which links sustainability with notions of 'progress' and efficiency. Under this discourse, the consumer has been repositioned as an important 'political' agent responsible for fostering sustainable consumption and environmental care. Through largely non-political and non-regulatory measures, consumers have been encouraged to reduce their 'carbon footprints' by considering the environmental impacts of their daily personal consumption habits. This approach has individualised and depoliticised environmental issues, obscured the complexities of personal consumption and sustainability, and left limited options for participation in processes of change.

text: Global Environmental Change and the Politics of Sustainable Consumption in New Zealand Consumption has emerged as a pivotal concept in environmental sustainability debates. Since the 1992 Earth Summit, there has been an increasing focus on the role that consumption and consumer lifestyles play in global environmental change. Agenda 21 called on countries to promote more 'sustainable consumption' patterns and lifestyles. Despite these recommendations, there are significant political and ideological challenges to implementing effective sustainable consumption policies at a global and national level.

This thesis explores the politics of sustainable consumption in New Zealand. Using critical discourse analysis and in-depth semi-structured interviews with nine consumers, I employ post-structural and cultural geography theories to unpack the problematic nature of sustainable consumption. In particular, I examine dominant environmental and consumption discourses to explore why barriers to sustainable consumption exist. It is important to examine these issues from a socio-cultural perspective, as the dominant hegemonic discourses relating to the environment and sustainability shape both policy responses and public understandings of environmental change and sustainability issues.

Prevailing policy responses to environmental change in New Zealand construct the 'environmental problem' in narrowly scientific and economic terms. Concern has centred on 'managing' carbon emissions, rather than addressing the underlying drivers of environmental degradation which lie in current political-economic structures and consumption levels. As such, environmental policy has been embedded within an ecological modernisation discourse which links sustainability with notions of 'progress' and efficiency. Under this discourse, the consumer has been repositioned as an important 'political' agent responsible for fostering sustainable consumption and environmental care. Through largely non-political and non-regulatory measures, consumers have been encouraged to reduce their 'carbon footprints' by considering the environmental impacts of their daily personal consumption habits. This approach has individualised and depoliticised environmental issues, obscured the complexities of personal consumption and sustainability, and left limited options for participation in processes of change.

year: 2009

title: Ko te Pakiwaituhi Ko Au, Ko Au Ko te Pakiwaituhi: He Wewetenga o te Pakiwaituhi Tōra Mātātoa, He Whakapuakanga Pakiwaituhi Māori

authors: Ross, Kristin Cherie

subjects: Pakiwaituhi Māori

abstract: ARIĀ

Mai i ngā tau o te whitu tekau te pakanga a ētahi rōpū Māori kia rangona te Māori, kia kitea te Māori ki runga pouaka whakaata.  I kura takahi puni te whiua o rātou mā ki te Karauna kia whakamanahia tāna i oati ai i te Tiriti o Waitangi.  Otirā, ka tohua te Karauna ki te tiaki i ngā kura kāmehameha a te Māori, arā, ko te reo me ōna tikanga.  I kitea e rātou mā tētahi patanga oranga o tō tātou reo, o ā tātou tikanga mā te ao pāpāho.  E mara e, kua tuangahuru ngā tau e whakapāoho atu ana a Whakaata Māori mai i tōna whakarewanga i te tau 2004.  Nā aua kikopuku reo, nā aua mumu tikanga, nā aua matā mana motuhake i whai wāhi mai ai te Māori i te ao pāpāho, otirā, i te ao o te pouaka whakaata. 

Ka mutu, ko te ngako ia o tēnei tuhinga, he whakamahuki, he tirotiro, he ketuketu i te pakiwaituhi kōhungahunga, i a Dora the Explorer.  I whakamāorihia e Whakaata Māori ki a Tōra Mātātoa.  Mō te pakiwaituhi rongonui, kāhore he painga i a Tōra Mātātoa.  Kei te mātakitakihia e ngā iwi huhua ki ngā tōpito katoa o te ao.  Ko te pātai ia nā, he aha oti ngā ehunga Māori ka kitea, ka rangona rā roto mai i te pakiwaituhi kōhungahunga, i a Tōra Mātātoa?  Mā tēnei rangahau tonu e whakautu.  

Ko ngā pakiwaituhi katoa o Whakaata Māori mā te kōhungahunga he mea hanga e iwi kē atu i te Māori.  Ka mutu ka whakaarohia e tēnei rangahau ētahi huarahi e taea ai e tātou te whakaputa pakiwaituhi Māori mā te kōhungahunga.  Otirā, ka whakapua mai ai i tētahi pakiwaituhi Māori nāku tonu.  Ko tāku e whakapae nei, me kite ā tātou tamariki i a rātou anō rā roto mai i ngā pakiwaituhi.  Ko tāku e manako nei, kia kaha te iwi Māori ki te kimi huarahi e whakaputa ai i ā tātou ake pakiwaituhi nā te Māori, mā te Māori, mō te Māori. 

ABSTRACT

Since the 1970s select Māori groups have fought to be seen and heard in the broadcasting industry and particular television.  United and banded they challenged the Crown to honour what was promised to them in the Treaty of Waitangi.  They demanded that the Government maintain the Māori language and its customs.  They saw television as a means to retain and transmit our language and culture.  2014 marked the tenth year of broadcasting for Māori Television.  This prestigious achievement in Māori broadcasting was due to the efforts of our leaders who fought tirelessly to ensure our language and customs were and are maintained throughout broadcasting. 

The basis of this thesis is the analysis of the preschool animation, Dora the Explorer, which was broadcast and translated by Māori Television as Tōra Mātātoa.  Dora the Explorer is arguably the most famous preschool animation.  The show is watched by the masses all over the world. This thesis investigates the question; what representations of Māori are seen and heard in the preschool animation Tōra Mātātoa? 

All of the preschool animations shown on Māori Television have been created by non-Māori.  Therefore, the purpose of this research is to create new ways of thinking that will initiate the production of locally made preschool animation.  This thesis looks at a Māori animation example that I have created based on the findings of this research.  It is imperative that our children see themselves on the television screen.  I hope Māori actively seek avenues to ensure the production of preschool animation by Māori, for Māori and about Māori.

text: Ko te Pakiwaituhi Ko Au, Ko Au Ko te Pakiwaituhi: He Wewetenga o te Pakiwaituhi Tōra Mātātoa, He Whakapuakanga Pakiwaituhi Māori ARIĀ

Mai i ngā tau o te whitu tekau te pakanga a ētahi rōpū Māori kia rangona te Māori, kia kitea te Māori ki runga pouaka whakaata.  I kura takahi puni te whiua o rātou mā ki te Karauna kia whakamanahia tāna i oati ai i te Tiriti o Waitangi.  Otirā, ka tohua te Karauna ki te tiaki i ngā kura kāmehameha a te Māori, arā, ko te reo me ōna tikanga.  I kitea e rātou mā tētahi patanga oranga o tō tātou reo, o ā tātou tikanga mā te ao pāpāho.  E mara e, kua tuangahuru ngā tau e whakapāoho atu ana a Whakaata Māori mai i tōna whakarewanga i te tau 2004.  Nā aua kikopuku reo, nā aua mumu tikanga, nā aua matā mana motuhake i whai wāhi mai ai te Māori i te ao pāpāho, otirā, i te ao o te pouaka whakaata. 

Ka mutu, ko te ngako ia o tēnei tuhinga, he whakamahuki, he tirotiro, he ketuketu i te pakiwaituhi kōhungahunga, i a Dora the Explorer.  I whakamāorihia e Whakaata Māori ki a Tōra Mātātoa.  Mō te pakiwaituhi rongonui, kāhore he painga i a Tōra Mātātoa.  Kei te mātakitakihia e ngā iwi huhua ki ngā tōpito katoa o te ao.  Ko te pātai ia nā, he aha oti ngā ehunga Māori ka kitea, ka rangona rā roto mai i te pakiwaituhi kōhungahunga, i a Tōra Mātātoa?  Mā tēnei rangahau tonu e whakautu.  

Ko ngā pakiwaituhi katoa o Whakaata Māori mā te kōhungahunga he mea hanga e iwi kē atu i te Māori.  Ka mutu ka whakaarohia e tēnei rangahau ētahi huarahi e taea ai e tātou te whakaputa pakiwaituhi Māori mā te kōhungahunga.  Otirā, ka whakapua mai ai i tētahi pakiwaituhi Māori nāku tonu.  Ko tāku e whakapae nei, me kite ā tātou tamariki i a rātou anō rā roto mai i ngā pakiwaituhi.  Ko tāku e manako nei, kia kaha te iwi Māori ki te kimi huarahi e whakaputa ai i ā tātou ake pakiwaituhi nā te Māori, mā te Māori, mō te Māori. 

ABSTRACT

Since the 1970s select Māori groups have fought to be seen and heard in the broadcasting industry and particular television.  United and banded they challenged the Crown to honour what was promised to them in the Treaty of Waitangi.  They demanded that the Government maintain the Māori language and its customs.  They saw television as a means to retain and transmit our language and culture.  2014 marked the tenth year of broadcasting for Māori Television.  This prestigious achievement in Māori broadcasting was due to the efforts of our leaders who fought tirelessly to ensure our language and customs were and are maintained throughout broadcasting. 

The basis of this thesis is the analysis of the preschool animation, Dora the Explorer, which was broadcast and translated by Māori Television as Tōra Mātātoa.  Dora the Explorer is arguably the most famous preschool animation.  The show is watched by the masses all over the world. This thesis investigates the question; what representations of Māori are seen and heard in the preschool animation Tōra Mātātoa? 

All of the preschool animations shown on Māori Television have been created by non-Māori.  Therefore, the purpose of this research is to create new ways of thinking that will initiate the production of locally made preschool animation.  This thesis looks at a Māori animation example that I have created based on the findings of this research.  It is imperative that our children see themselves on the television screen.  I hope Māori actively seek avenues to ensure the production of preschool animation by Māori, for Māori and about Māori.

year: 2015