The Geometry and Usage of the Supplementary Fisheye Lenses in Smartphones

Nowadays, mobile phones are more than a device that can only satisfy the communication need between people. Since fisheye lenses integrated with mobile phones are lightweight and easy to use, they are advantageous. In addition to this advantage, it is experimented whether fisheye lens and mobile phone combination can be used in a photogrammetric way, and if so, what will be the result. Fisheye lens equipment used with mobile phones was tested in this study. For this, standard calibration of ‘Olloclip 3 in one’ fisheye lens used with iPhone 4S mobile phone and ‘Nikon FC‐E9’ fisheye lens used with Nikon Coolpix8700 are compared based on equidistant model. This experimental study shows that Olloclip 3 in one fisheye lens developed for mobile phones has at least the similar characteristics with classic fisheye lenses. The dimensions of fisheye lenses used with smart phones are getting smaller and the prices are reducing. Moreover, as verified in this study, the accuracy of fisheye lenses used in smartphones is better than conventional fisheye lenses. The use of smartphones with fisheye lenses will give the possibility of practical applications to ordinary users in the near future

Aspects of Synthetic Vision Display Systems and the Best Practices of the NASA's SVS Project

NASA s Synthetic Vision Systems (SVS) Project conducted research aimed at eliminating visibility-induced errors and low visibility conditions as causal factors in civil aircraft accidents while enabling the operational benefits of clear day flight operations regardless of actual outside visibility. SVS takes advantage of many enabling technologies to achieve this capability including, for example, the Global Positioning System (GPS), data links, radar, imaging sensors, geospatial databases, advanced display media and three dimensional video graphics processors. Integration of these technologies to achieve the SVS concept provides pilots with high-integrity information that improves situational awareness with respect to terrain, obstacles, traffic, and flight path. This paper attempts to emphasize the system aspects of SVS - true systems, rather than just terrain on a flight display - and to document from an historical viewpoint many of the best practices that evolved during the SVS Project from the perspective of some of the NASA researchers most heavily involved in its execution. The Integrated SVS Concepts are envisagements of what production-grade Synthetic Vision systems might, or perhaps should, be in order to provide the desired functional capabilities that eliminate low visibility as a causal factor to accidents and enable clear-day operational benefits regardless of visibility conditions

Trophic classification of selected Colorado lakes

Multispectral scanner data, acquired over several Colorado lakes using LANDSAT-1 and aircraft, were used in conjunction with contact-sensed water quality data to determine the feasibility of assessing lacustrine trophic levels. A trophic state index was developed using contact-sensed data for several trophic indicators. Relationships between the digitally processed multispectral scanner data, several trophic indicators, and the trophic index were examined using a supervised multispectral classification technique and regression techniques. Statistically significant correlations exist between spectral bands, several of the trophic indicators and the trophic state index. Color-coded photomaps were generated which depict the spectral aspects of trophic state

Photography equipment and techniques. A survey of NASA developments

The Apollo program has been the most complex exploration ever attempted by man, requiring extensive research, development, and engineering in most of the sciences before the leap through space could begin. Photography has been used at each step of the way to document the efforts and activities, isolate mistakes, reveal new phenomena, and to record much that cannot be seen by the human eye. At the same time, the capabilities of photography were extended because of the need of meeting space requirements. The results of this work have been applied to community planning and ecology, for example, as well as to space and engineering. Special uses of standard equipment, modifications and new designs, as well as film combinations that indicate actual or potential ecological problems are described

Wayfinding Pasifikafuturism : an indigenous science fiction vision of the ocean in space : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Creative Writing at Massey University, Manawatu, New Zealand

This thesis examines science fiction space stories written by Indigenous writers and asks how these texts look to the past while commenting on the present and providing transformative imaginaries of our existence as Indigenous peoples in the future. It also investigates how these texts challenge the inherent colonialism of the science fiction genre and its norm of the white, male, heteronormative, cisgender point of view. This thesis comprises two sections, creative and critical. Twenty percent provides the critical analyses and eighty percent makes up the creative section. The critical component is in two parts. The first part defines the specific point of view adopted in this thesis, which is that of science fiction literature written by Māori and Pasifika authors as the Indigenous peoples of the Pacific. This point of view is captured within the term I have developed and called, “Pasifikafuturism”, a theoretical construct that situates Oceanic science fiction in the afterlife of colonisation and seeks to move beyond postcolonialism to create Pacific conceptions of the future. Pasifikafuturism is located alongside other Alternative Futurisms with which it has commonalities, including Afrofuturism, Indigenous Futurism, Queer Indigenous Futurism, Chicanafuturism, Latinofuturism, and Africanfuturism. Pasifikafuturism is identified within the context of the Pacific Ocean and the ancestral practices and methodologies of wayfinding and waka building. The second part of the critical study comprises a close reading of two science fiction space stories written by Indigenous authors. The first is Witi Ihimaera’s space novella Dead of Night, a story about six people travelling through space to the end of the universe, or Te Kore. The second is Nnedi Okorafor’s novella Binti in which the titular protagonist, a young Indigenous woman from the Himba tribe in Namib, is the first person in her community to travel into space to attend an intergalactic university. In the creative portion of this thesis, Pasifikafuturism is explored imaginatively in an original novel titled Na Viro, which is shaped and informed by my critical research. Na Viro is a work of science fiction set in interstellar space and the Pacific. Tia, the protagonist in Na Viro, is a young Fijian woman who travels into space to rescue her sister from a whirlpool. This thesis argues that science fiction, and specifically space stories, can be used as a lens through which to examine the histories and ancestral knowledge of Indigenous peoples adversely impacted by colonialism; and as a way of reclaiming and re-growing Indigenous knowledge that has survived. Furthermore, I use Pacific wayfinding as a methodological framework to enable the envisioning of transformative futures in science fiction stories where our knowledges are centralised, privileged, and respected

Visually guided flight in birds using the budgerigar (Melopsittacus undulatus) as a model system

Keywords: Edge detection, Optic flow, Obstacle avoidanc

Investigating the build-up of precedence effect using reflection masking

The auditory processing level involved in the build‐up of precedence [Freyman et al., J. Acoust. Soc. Am. 90, 874–884 (1991)] has been investigated here by employing reflection masked threshold (RMT) techniques. Given that RMT techniques are generally assumed to address lower levels of the auditory signal processing, such an approach represents a bottom‐up approach to the buildup of precedence. Three conditioner configurations measuring a possible buildup of reflection suppression were compared to the baseline RMT for four reflection delays ranging from 2.5–15 ms. No buildup of reflection suppression was observed for any of the conditioner configurations. Buildup of template (decrease in RMT for two of the conditioners), on the other hand, was found to be delay dependent. For five of six listeners, with reflection delay=2.5 and 15 ms, RMT decreased relative to the baseline. For 5‐ and 10‐ms delay, no change in threshold was observed. It is concluded that the low‐level auditory processing involved in RMT is not sufficient to realize a buildup of reflection suppression. This confirms suggestions that higher level processing is involved in PE buildup. The observed enhancement of reflection detection (RMT) may contribute to active suppression at higher processing levels

Adposition and Case Supersenses v2.5: Guidelines for English

This document offers a detailed linguistic description of SNACS (Semantic Network of Adposition and Case Supersenses; Schneider et al., 2018), an inventory of 50 semantic labels ("supersenses") that characterize the use of adpositions and case markers at a somewhat coarse level of granularity, as demonstrated in the STREUSLE corpus (https://github.com/nert-gu/streusle/; version 4.3 tracks guidelines version 2.5). Though the SNACS inventory aspires to be universal, this document is specific to English; documentation for other languages will be published separately. Version 2 is a revision of the supersense inventory proposed for English by Schneider et al. (2015, 2016) (henceforth "v1"), which in turn was based on previous schemes. The present inventory was developed after extensive review of the v1 corpus annotations for English, plus previously unanalyzed genitive case possessives (Blodgett and Schneider, 2018), as well as consideration of adposition and case phenomena in Hebrew, Hindi, Korean, and German. Hwang et al. (2017) present the theoretical underpinnings of the v2 scheme. Schneider et al. (2018) summarize the scheme, its application to English corpus data, and an automatic disambiguation task

Investigation related to multispectral imaging systems

A summary of technical progress made during a five year research program directed toward the development of operational information systems based on multispectral sensing and the use of these systems in earth-resource survey applications is presented. Efforts were undertaken during this program to: (1) improve the basic understanding of the many facets of multispectral remote sensing, (2) develop methods for improving the accuracy of information generated by remote sensing systems, (3) improve the efficiency of data processing and information extraction techniques to enhance the cost-effectiveness of remote sensing systems, (4) investigate additional problems having potential remote sensing solutions, and (5) apply the existing and developing technology for specific users and document and transfer that technology to the remote sensing community