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215 Uppsatser om Camera tracking - Sida 3 av 15
Prototyp av blick-mätande hörseltest för spädbarn
För att barn med hörselnedsättning skall kunna få en normal tal- och språkutveckling samtkognitivt beteende är det av stor betydelse att hörselnedsättningen upptäcks tidigt.En av de beteendebaserade metoderna för att uppskatta spädbarns hörseltröskelvärden ärVisual Reinforcement Audiometry, VRA. Det är en konditionerande procedur där barnetassocierar ett ljud med ett visuellt mål. En audionom kontrollerar om barnet vrider på huvudetmot det visuella målet, som en reaktion på ljud stimuli, och belönar då barnet med en visuellförstärkning, så som en animerad bild på en skärm eller en mekanisk leksak.En ide på hur man kan göra VRA mer objektivt och mindre tidskrävande finns. Idén är attanvända eye tracking teknik som registrerar spädbarnets ögonrörelser och användaögonrörelserna istället för huvudvridningar som reaktioner på ljud stimuli.Detta examensarbete syftar till att testa och avgöra om VRA med eye tracking har godaframtidsutsikter. En prototyp i form av en datorapplikation har byggts och testats.Tester har utförts på tolv vuxna och nio spädbarn.
Sambandet mellan förändringar i fonders portföljsammansättning och prestation : Effekten av ett nytt aktivitetsmått
Tidigare forskning är inte enig om aktivt förvaltade fonder presterar bättre eller sämre än index. Då hänsyn inte tas till olika nivåer av aktivitet tycks de flesta studier visa att aktiv förvaltning är en förlustaffär för fondsparare. Vi introducerar ett nytt mått på aktivitet, aktivitetsgrad, som utgår från de åtgärder förvaltaren vidtar. Aktivitetsgraden definieras av mängden och storleken på förändringar i portföljsammansättningen som sker under ett kvartal. Vi undersöker aktivitetsgraden hos 22 svenska småbolagsfonder mellan 2008 och 2013 och finner att de flesta fonder har en låg aktivitetsgrad.
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When searching for better and more practical interfaces between users and their computers, additional or alternative modes of communication between the two parties would be of great use. This thesis handles the possibilities of using eye and head movements as well as voice input as these alternative modes of communication. One part of this project is devoted to find possible interaction techniques when navigating in a computer interface with movements of the eye or the head. The result of this part is four different controls of an interface, adapted to suit this kind of navigation, combined together in a demo application. Another part of the project is devoted to the development of an application, with voice control as primary input method.
Lämna inte slumpen åt slumpen - En studie om hylloptimering i den digitala butiken
This paper examines the impact of conscious shelf management on online grocery stores. An S-O-R framework is used to unveil if some established shelf management techniques from physical stores are applicable in an online context. We also explain some of the cognitive processes customers experience as they get exposed to online buying situations. A main study with two data sources is conducted: one quantitative website experiment with 168 participants who got exposed to five different organisation patterns within five different categories; and one more qualitative eye tracking experiment with 20 participants. The results indicate that a disorganised product page evokes not only different scan paths and cognitive patterns but also generates higher sales.
Överdrift i animation : Karaktärsanimation ur två kameraperspektiv.
I animation för film kan regissören ändra kameravinkel för att en karaktärs känslor ska förmedlas på ett tydligt. i ett spel har ofta spelaren kontroll över kamerans position men kan i vissa fall inte ändra kameravinkeln. I det här arbetet undersöks om en spelkaraktärs rörelser måste överdrivas mer i ett spel som använder Free Roaming Camera än i ett spel som använder First Person Perspective. En karaktär i ett tänkt spel animerades med olika grad av överdrift för att förmedla ilska. Animationerna visades sedan för ett antal informanter som fick bedöma hur trovärdiga de upplevde animationerna samt ange vilket sinnestillstånd de upplevde att karaktären hade.
Modellering av delvis kända objekt med hjälp av bilder
Today many different types of lock systems are used all over the world. Passwords, finger prints and magnetic strips are a few examples. When the key is a three dimensional object, lika a physical metal key, the security depends, in a high degree, on that you can?t copy the object without access to it. One approach to copying the object is photographing the object, and from these photographs create a copy.
Vad bestämmer fonders prestation och avgift? : En studie på svenska aktivt förvaltade aktiefonder under perioden 2005-2014
This study analyzes 66 Swedish actively managed mutual funds investing in the Swedish stock market during the period 2005-2014. The purpose is through pooled data regressions analyze the relationship between both the mutual fund?s annual fee and risk-adjusted return to the fund?s characteristics. The characteristics of the study are the size of the fund's assets, age, if the fund is bank managed or not, Tracking Error, and standard deviation of return.By using the performance measures of CAPM, Fama and French 3-factor model, and Carhart?s 4-factor model monthly risk-adjusted returns are created for all funds over the period.
Att våga tro på elevers förmågor : Lärares erfrenheter av att arbeta med elevinflytande i grundsärskolan
This study analyzes 66 Swedish actively managed mutual funds investing in the Swedish stock market during the period 2005-2014. The purpose is through pooled data regressions analyze the relationship between both the mutual fund?s annual fee and risk-adjusted return to the fund?s characteristics. The characteristics of the study are the size of the fund's assets, age, if the fund is bank managed or not, Tracking Error, and standard deviation of return.By using the performance measures of CAPM, Fama and French 3-factor model, and Carhart?s 4-factor model monthly risk-adjusted returns are created for all funds over the period.
Reglering av veka strukturer med multipla sensorer
In this master thesis, control algoritms using arm side sensors are investigated for an industrial robot. The sensors can be position encoders placed after the gearbox and accelerometers on the robot arms. Control strategies are discussed and evaluated for different models of the robot, after which chosen strategies are applied to a realistic model. Control algoritms using arm side sensors (LQ, dual-loop and PD-PID) are compared to a PID-controller that only uses measurements of motor position for feedback control. The comparison are done with respect to disturbance rejection, oscillation damping, robustness and tracking performance of a reference trajectory.
Vakande ögon : På gott eller ont?
AbstractTitle: Watching eyes ? for better or worse (Vakande ögon ? på gott eller ont?)Number of pages: 34 (41 including enclosures)Author: Josefine NybergTutor: Göran SvenssonCourse: Media and Communication Studies CPeriod: Autumn term 2007University: Division of Media and Communication, Department of Information Science, Uppsala University.Purpose/Aim: The aim of this essay is partly to make a study about how people understand camera supervise, and partly discuss what their opinions are concering the subject.Key Questions: Which or what is the mainpurpose of camerasurveillance? What does the public think about the subject? When can there be an insult against the integrity while using the cameras? What is private and what is public? What is the posibilities and threats in the future?Material/Method: A qualitative method has been used. Four interviewes, one personale interview with a policeofficer from Uppsala and three focusgroupinterviwes with people from Stockholm, have been done. Then the results from the interviewes have been compared with earlier theories and reaserches. By reading publicdocuments, press releases and reports from the government, I have gather information for the essay.Main results: Even if the public are aware of the cameras and knows that they allmoust allways are whatched by the electronic eye, they don´t seem to care that much about the constant surveillance.
Externa kostnader för viltolyckor
The objective of this paper is to estimate monetary and non-monetary costs for the huntercaused by deer-vehicle collisions in Sweden. These costs include losses in hunting value as wellas time and money efforts related to the handling of wildlife casualties. The calculations arebased on available statistics from 2004 on deer-vehicle collisions involving moose, deer, roedeerand wild boar and on telephone interviews with hunters involved in the tracking of injuredanimals. Altogether, the annual loss in hunting value for moose was assessed to approximately30 million SEK based on the 2004 accident statistics. For roe-deer and fallow deer, thecorresponding figure was approximately 56 million SEK and 1.2 million SEK, while wild boaraccounted for 1.3 million SEK, respectively.
Avståndsvarnare till Mobiltelefon
This report describes a study, description and testing of parts to an application adapted to the operating system Android. The application is supposed to measure the distance to a car ahead. Apart from distance measurements the ability of the application to calculate its own speed with the help of GPS is tested. From these two parameters, speed, distance and some constants the theoretical stopping distance of the car will be calculated in order to warn the driver if the car is too close to the car ahead in relation to its own speed and stopping distance.Tests were conducted on the different applications that were programmed and the result showed that the camera technique in the mobile phone itself limits the maximum distance of the distance measurement application. The max distance the tests in this thesis revealed was approximately 5 meters.
Aktiv förvaltning av fonder på Emerging Markets
The main purpose of this Master Thesis has been to evaluate whether active fund management is profitable on Emerging Markets. The material used to examine this consists of 106 actively managed funds, with varying length during the period 1988-2006 and who uses MSCI Emerging Markets (MSCI EM) as benchmark index. The thesis has been written under the supervision of the Asset Management Department of Länsförsäkringar AB (LFAB) and the Department of Production Economics, Linköping Institute of Technology. Apart from the main purpose, the methodology used is also meant to form a template for in-depth or similar studies, preferably by the assigner of this survey, LFAB.The results shows that the median manager underperforms the MSCI EM throughout the whole period, which leads to the conclusion is that active management on Emerging Markets is not profitable. A grouping of the funds based on tracking error still shows that a majority of the managers in all of the groups underperforms against the benchmark.
Produktspårning med RFID : Konceptutveckling och utvärdering
The aim of this thesis was to investigate the possibility of integrating an item tracking systemwith a monitoring system currently under development at Fifth Generation Technologies (P) Ltd.A literature study of RFID technology and the networks ZigBee and MiWi was done. Based onthe literature study a concept for a distributed system was developed.The concept is to have several RFID readers placed in the area where tracking is to be performedand allow them to communicate with each other through wireless communication. The RFIDreaders shall be able to form zones and filter the data that is forwarded from the zones to theservers and thus perform some of the work that the server would normally have to do. Theconcept has been evaluated by prototype development and testing. The prototype uses an ultrahigh frequency RFID reader and a MiWi network.The test indicated some limitations with the selected technologies.
Automatisk viktkontroll av glascontainer
This degree project has been carried out in cooperation with Gedevelop in Helsingborg.Gedevelop has developed a camera that can calculate the weight of a liquid glass mass.Because of the density and viscosity changes in the glass, the weight information issometimes incorrect given. Glass industry is today addressing the problem by an operatorperforming a manual weighing of a few bottles which, in turn, calibrates the camera system.The project aimed to develop an automated system to control the weighing of glass bottles forglass industries. This system must be so flexible that it can be easily mounted on plants withdifferent production equipment around the world.The project includes design and construction of equipment that meets the requirementsformulated together with Gedevelop. Work has been done both in Halmstad and Helsingborgand has included both calculations and review of the theory to understand the forces thatinfluence the design of different construction parts. A prototype was produced that meets theoperating requirements for the design and can be used in testing features.