title: Signal processing approaches for Jitter extraction in time-of-flight range imaging cameras

authors: Anthonys, Gehan

subjects: Science & Technology

abstract: The precision and accuracy of time-of-flight full-field range cameras are important for many applications, however there are a number of noise sources that degrade both precision and accuracy. Many of the noise sources such as nonlinearity, multipath inferences and harmonic cancellation are well investigated. Barely investigated is jitter on the camera light and shutter signals. Here we measure periodic and random jitter on the light signal of a camera. We use signal processing techniques to construct a reference signal, hence find the jitter. The performance of the proposed method is examined using the MESA Imaging SwissRanger 4000. We found periodic jitter of two frequencies at 0.12 and 5.04 MHz and the random jitter of 164 ± 4 ps, on the light signal of the camera.

text: Signal processing approaches for Jitter extraction in time-of-flight range imaging cameras The precision and accuracy of time-of-flight full-field range cameras are important for many applications, however there are a number of noise sources that degrade both precision and accuracy. Many of the noise sources such as nonlinearity, multipath inferences and harmonic cancellation are well investigated. Barely investigated is jitter on the camera light and shutter signals. Here we measure periodic and random jitter on the light signal of a camera. We use signal processing techniques to construct a reference signal, hence find the jitter. The performance of the proposed method is examined using the MESA Imaging SwissRanger 4000. We found periodic jitter of two frequencies at 0.12 and 5.04 MHz and the random jitter of 164 ± 4 ps, on the light signal of the camera.

year: 2018

title: Exploring new frontiers to generate an integrated definition of workaholism

authors: McMillan, Lynley H.W.

subjects: workaholism

abstract: In general, contemporary data indicate that workaholism represents a value system about the importance of working and achieving that certainly does not meet the scientific criteria for addiction, as it is associated with a similar quality of health and relationships to that of the rest of the adult population, and generally does not worsen over time (McMilIan and O'Driscoll, 2004). Interestingly, while the majority of workaholics appear to derive high enjoyment from their work and their leisure, it is their reluctance to utilize psychological `off-buttons' that potentially makes them a challenging group for management professionals (Machlowitz, 1980).

text: Exploring new frontiers to generate an integrated definition of workaholism In general, contemporary data indicate that workaholism represents a value system about the importance of working and achieving that certainly does not meet the scientific criteria for addiction, as it is associated with a similar quality of health and relationships to that of the rest of the adult population, and generally does not worsen over time (McMilIan and O'Driscoll, 2004). Interestingly, while the majority of workaholics appear to derive high enjoyment from their work and their leisure, it is their reluctance to utilize psychological `off-buttons' that potentially makes them a challenging group for management professionals (Machlowitz, 1980).

year: 2006

title: Takuahi: Te oriori mō Tāmaunga-o-te-rangi - Mana atua, mana whenua, mana tangata

authors: Dewes, Mahue

subjects: Takuahi

abstract: E roa nei tātau te Māori nō ngā wā o Hawaiki e tito ana i te waiata, i te haka, i te oriori, i te mōteatea hei waka kawe i ngā kōrero tuku iho ki ngā whakatipuranga hou. He putuputu tonu ngā tūmomo karere, ka raua atu ki roto i wēnei momo titonga waiata a te Māori. Ka whārikihia e ngā tohunga kaitito ngā karere nei mā te reo kīwaha, mā te reo whakataukī, mā te reo auaha hei kura huna. Mei māmā te kimi, ka tohunga katoa ngā Māori. Kai te aroaro o te tuhingaroa nei, ka ketuketu i tētahi o ngā oriori o Ngāti Porou, otiā, nō Te Whānau-a-Hinerupe, ko te oriori mō Tāmaunga-o-te-rangi, nā Te Māperetahi. Mā konei ake e ruku atu ai ki te raparapa i ngā kura huna e whakatauira ana i te mana Atua, mana whenua, mana tangata hei mana ahi kā. Mā tēnā hoki e whakatauira te mana ahi kā, kai a Tama, otiā, hei tauira atu ki ngā uri o Te Whānau-a-Hinerupe i tō rātau ake ahi kā roa ki Te Kawakawa mai Tawhiti. Ko ngā kōrero kua kohingia, he kōrero nō ngā tāngata e mōhio ana ki ngā tūmomo mana, ā, ki ngā kōrero e pā ana ki te oriori nei. Ka iringia wēnei rau kōrero hei whakarākei tonu i te pae tapu o Te Whānau-a-Hinerupe.

text: Takuahi: Te oriori mō Tāmaunga-o-te-rangi - Mana atua, mana whenua, mana tangata E roa nei tātau te Māori nō ngā wā o Hawaiki e tito ana i te waiata, i te haka, i te oriori, i te mōteatea hei waka kawe i ngā kōrero tuku iho ki ngā whakatipuranga hou. He putuputu tonu ngā tūmomo karere, ka raua atu ki roto i wēnei momo titonga waiata a te Māori. Ka whārikihia e ngā tohunga kaitito ngā karere nei mā te reo kīwaha, mā te reo whakataukī, mā te reo auaha hei kura huna. Mei māmā te kimi, ka tohunga katoa ngā Māori. Kai te aroaro o te tuhingaroa nei, ka ketuketu i tētahi o ngā oriori o Ngāti Porou, otiā, nō Te Whānau-a-Hinerupe, ko te oriori mō Tāmaunga-o-te-rangi, nā Te Māperetahi. Mā konei ake e ruku atu ai ki te raparapa i ngā kura huna e whakatauira ana i te mana Atua, mana whenua, mana tangata hei mana ahi kā. Mā tēnā hoki e whakatauira te mana ahi kā, kai a Tama, otiā, hei tauira atu ki ngā uri o Te Whānau-a-Hinerupe i tō rātau ake ahi kā roa ki Te Kawakawa mai Tawhiti. Ko ngā kōrero kua kohingia, he kōrero nō ngā tāngata e mōhio ana ki ngā tūmomo mana, ā, ki ngā kōrero e pā ana ki te oriori nei. Ka iringia wēnei rau kōrero hei whakarākei tonu i te pae tapu o Te Whānau-a-Hinerupe.

year: 2016