Search

Chromatic aberration is an error that occurs in color images due to the fact that camera lenses refract the light of different wavelengths in different angles. The common approach today to correct the error is to use a lookup table for each camera-lens combination, e.g., as in Adobe PhotoShop Lightroom or DxO Optics Pro. In this paper, we propose a method that corrects the chromatic aberration error without any priot knowledge of the camera-lens combination, and does the correction already on the bayer data, i.e., before the Raw image data is interpolated to an RGB image. We evaluate our method in comparison to DxO Optics Pro, a state-of-the-art tool based on lookup tables, using 25 test images and the variance of the color differences (VCD) metric. The results show that our blind method has a similar error correction performance as DxO Optics Pro, but without prior knowledge of the camera-lens setup. CCBYNCND, open access

The purpose of this study was to highlight the problem of low groundwater levels and water shortage by analyzing how Sweden's management and adaptability capabilities work in comparison with risk management strategies. The collected result was analyzed against the so-called 4-E Strategies (Enforcement, Engineering, Education, and Economic) as the main framework. In addition, the study aimed at investigating how the ability can be created through these strategies and which of these the municipalities consider to be most effective. The data collection took place through individual semi-structured interviews with representatives from 5 municipalities. The answers from the interviews were then analyzed with qualitative content analysis, where responses generated from the qualitative content analysis were set against the 4-E strategies. The result shows that the interviewees believe that all prevention strategies may be useful depending on the context and when it is used. In addition, they must also be adapted to the local conditions in the current geographic area. The result also shows that all 4-E strategies are needed to create efficient handling and adaptability for drinking water management. The study's results show that the Swedish municipalities' management and adaptability to these strategies is satisfactory. Keywords Risk management, 4-E strategies, 3-E strategies, Drinking water management, Sweden

This paper introduces a new metric for approximating structural instability in Bayer image data. We show that the metric can be used to identify and classify validity of color correlation in local image regions. The metric is used to improve interpolation performance of an existing state of-the-art single pass linear demosaicing algorithm, with virtually no impact on computational GPGPU complexity and performance. Using four different image sets, the modification is shown to outperform the original method in terms of visual quality, by having an average increase in PSNR of 0.7 dB in the red, 1.5 dB in the green and 0.6 dB in the blue channel respectively. Because of fewer high-frequency artifacts, the average output data size also decreases by 2.5%. © 2016 IEEE.

Background Arriva DK currently has a decentralized organization where each depot is responsible for the inventory control of their spare parts. This type of organization often presents challenges when it comes to control and management. Arriva DK suffers from high order costs due to lack of coordination between the depots and the suppliers. To address these issues Arriva wants to introduce a central warehouse. Purpose The aim of the thesis is to optimize inventory management by creating simulation models that from a cost perspective explore the effects of introducing a central warehouse for spare parts. To provide Arriva DK with simulation models of the supply chain and inventory management, both with – and without a central warehouse. Method The thesis is built on Hillier and Lieberman’s Operations research method. Data used in the thesis consist of both primary and secondary quantitative and qualitative data. Literature studies have also been done and are the basis for the theory. Two simulation models were built. The first model represents an optimized decentralized situation that uses joint replenishment. The second model represents a system with a central warehouse, which also uses joint replenishment. Thereafter the models were compared to determine if an investment in a centralized system is profitable. Conclusions The results from the simulation study showed that the total cost for the CW-model is higher than the DC-model in all scenarios. Both the holding- and order cost will be higher with a central warehouse. The major advantage of using a central warehouse is that the number of orders to the suppliers will be reduced by more than 50%. This along with the suppliers only have to deliver to one location will result in price reductions on the products. Even with small discounts, will a central warehouse be profitable since the procurement cost represents such a large part of the total cost.

JPEG encoding is a common technique to compress images. However, since JPEG is a lossy compression certain artifacts may occur in the compressed image. These artifacts typically occur in high frequency or detailed areas of the image. This paper proposes an algorithm based on the SSIM metric to improve the experienced quality in JPEG encoded images. The algorithm improves the quality in detailed areas by up to 1.29 dB while reducing the quality in less detailed areas of the image, thereby increasing the overall experienced quality without increasing the image data size. Further, the algorithm can also be used to decrease the file size (by up to 43%) while preserving the experienced image quality. Finally, an efficient GPU implementation is presented. © 2014 IEEE.

I följande examensarbete undersöks hur kvigors utfodring påverkar marmoreringen. Under undersökningens tid har nio nötköttsproducenter intervjuats. Samtliga hade under 2011 levererat kvigor för slakt till Team Ugglarps anläggning i Hörby. Intervjufrågorna berörde främst hur producenterna hade utfodrat kvigorna, men även information om stalltyp och betesdrift noterades. Syftet med undersökningen var att få mer kunskap om hur utfodringen kan påverka köttets marmorering, samt att se om det fanns någon speciell utfodringsstrategi som ska följas för att få bra marmorering. Marmorering på nötkött påverkas av flera faktorer. Olika raser har olika egenskaper för att få bra marmorering på kött. Men även djurets ålder, kön och djurkategori påverkar marmoreringen. Fodret är också viktigt. Olika foder har egenskaper som kan påverka marmoreringen. Under 2011 bedömde Team Ugglarp marmoreringen på alla djur som slaktades. Sextio producenter, jämnt fördelade mellan producenter med genomsnittligt högt eller lågt marmorerningsresultat blev tillfrågade via ett brev om de ville delta i undersökningen. Nio producenter svarade varav sex hade högt marmorerningsresultat och tre lågt marmoreringsresultat. Tillsammans hade producenterna skickat 107 st kvigor till slakt. Intervjuerna genomfördes och resultaten analyserades. Resultatet från undersökningen visade att producenter med högt marmoreringsresultat oftare arbetade med sin nötköttsproduktion på heltid. Deras kvigor var oftast korsningar av flera raser. Stallen var väldigt varierande men majoriteten hade sina kvigor i lösdrift med liggbås. Grovfodret utfodrades ofta två eller fler gånger om dagen och var oftast kort hackat och de flesta producenterna utfodrade också kraftfoder till sina kvigor. Producenter med lågt marmoreringsresultat hade ofta ett jobb vid sidan om sin nötköttsproduktion. De använde sig av tyngre raser. Stallarna var kalla lösdrifter med djupströbädd. Grovfoder och kraftfoder utfodrades endast en gång om dagen. Hacklä, The effect of feeding on meat marbling in heifers has been studied. Nine beef producers who sent heifers for slaughter to Team Ugglarps abattoir in Hörby in 2011 were interviewed. The questions were primarily focused on how the producers had fed their heifers. Information about housing system and grazing were also recorded. The object of this study was to obtain more knowledge about how the feeding of heifers could affect meat marbling, and also to see if there is any particular strategy to follow to get good marbling. The marbling in beef is affected by several factors. Different breeds have different characteristics to get good marbling in meat. Also the animal’s age, gender and category affect the marbling. The forage is also important; the forage quality can affect the marbling. All animals slaughtered at Team Ugglarp during 2011 were classified for marbling. Sixty producers, equally divided between producers delivered animals with an average high or low marbling result, were sent an invitation to participate in this study. Nine producers answered, six had animals with high marbling and three had animals with low marbling results. Together the producers had sent 107 heifers to slaughter. The interviews were conducted and the results were analyzed. The results of the study showed that producers who bred heifers with high marbling often worked full time with the beef production. Their heifers were mostly crossbreeds. The housing systems differ but the majority had their heifers in cubicle housing. The roughage was often fed two or more times a day and was usually chopped short. Most of the producers also fed concentrate to the heifers. Producers with low marbled animals often had another job besides the beef production. They used large and heavy cattle breeds. These producers used cold loose housing systems with straw bedding. They only fed roughage and concentrate once a day and the roughage`s chop length varied more with these producers. The conclusion from this

Between 1997 -2005 a research and developing work has been carried out in collaboration between Child Health Services, Lyckeby Primary Health Area , County Council of Blekinge and a researcher at School of Health, Blekinge Institute of Technology with purpose to develop health counselling in Child Health Services and to study this process. Corner stones for the collaboration and developing process were a participatory approach, a Health Action process and improvement work evolving from practice. The present report describe the evaluation of improvement for seven years, two initial years as a project and five years in ordinary activity, the impact on health counselling and, strains and obstacles for maintaining. The evaluation suggests that the overall aim for the improvement has been achieved. The studies shows that health counselling is a multi-faced work and therefore actions and improvements can not only focus on the health counselling in the consultations. Several factors interact and influence on the routines for child health services, collaboration and health counselling. The process evaluation showed that the participatory action approach made that the district nurses felt that they “urge on together” to improve the health counselling and reach the goal, although the extra developing work took time. The health action working process and the group meetings developed the request of reflection and discussion. By active participating in the project the district nurses developed awareness, knowledge, skills and methods for action and changing and prerequisites for maintaining and application in the organisation increase. The “outsider” (researcher) is important as a reflection and analysis partner. The improving and changing process needs and takes time, for being emerged and not forced, sustainable and not a dayfly., Hösten 1997 påbörjades ett forsknings- och utvecklingsarbete i samarbete mellan Lyckeby primärvårdsområde, Landstinget Blekinge och Blekinge Internationella Hälsohögskola (nuvarande Sektionen för hälsa, Blekinge Tekniska Högskola) med fokus på hälsovägledning i barnhälsovården. Utgångspunkterna var att arbetet skulle utgå från den praktiska verksamheten med aktiv medverkan av deltagande praktiker och forskare samt ha en teoriutvecklande ansats. Våren 2005 genomfördes föreliggande utvärdering för att samla ihop erfarenheter och kunskap som förvärvats om hälsovägledningsarbete och utvecklingsarbetets struktur, process och effekter samt kunskap om faktorer som inverkade på utvecklingsarbetets genomförande och hållbarhet. Data samlades in genom utvecklingsarbetets dokument, studier av dokumentation i barnhälsovård journaler, föräldraundersökning, deltagande observationer och fältanteckningar samt enskilda intervjuer med deltagande distriktssköterskor. Utvärderingen visar att utvecklingsarbetets arbetssätt med utgångspunkt i aktiv medverkan och att arbetet skulle formas gemensamt i gruppen har motsvarat syftet med utvecklingsarbetet. Utvecklingsarbetets arbetssätt enligt hälsoarbetets process, var betydelsefullt både för verksamhetsutvecklingen i sin helhet och för det enskilda hälsovägledningsarbetet. Det övergripande mål för arbetet i utvecklingsarbetet var att utveckla hälsovägledningen till en mer individ- och familjecentrerad hälsovägledning, som är organisatoriskt möjlig att tillämpa och är av god kvalitet är övervägande uppnått. De mest betydelsefulla effekterna av utvecklingsarbetet har fokus på barnhälsovårdens status, sjuksköterskans professionella roll, hälsovägledningens kvalitet, utvecklingsklimat och samverkan. Spännvidden visar att hälsovägledningsarbetet finns i ett komplext samspel mellan olika faktorer och samspelet mellan dem är centralt för utvecklingen av hälsovägledning. Faktorer som inverkar stödjande och underlättande för utvecklingsarbetet har fo, Landstinget Blekinge Authors + 1> Johanna Tell

The aim of this Masters thesis is to examine how two novels written by the Swedish author Pär Lagerkvist have been received by the critics in the Swedish daily press concerning their contemporary anchorage. During the time these novels were published, Pär Lagerkvist, through his authorship, expressed a conception of and an attitude towards contemporary political directions. The first of the two novels, The Hangman, was published in 1933, and the second, The Dwarf, in 1944. A second aim is to examine how the two novels contemporary anchorage is reflected in the reviews. The final aim is to examine whether the criticism differs depending on the ideological view of the newspapers. This qualitative study is based upon a total of 25 reviews from the Swedish daily press. The theoretical approach mainly comes from two Swedish professors in Sociology of Literature, Lars Furuland and Johan Svedjedal. My method of analysis is a textual one, analysis of ideas and ideology, focusing on the aspect of signification of a text. The conclusion of this study shows that the critics in many ways appear to be quite similar in their critic. It is, however, not possible to detect any uniform line in their criticism. When it comes to The Hangman, the critics show a tendency to discuss the element of contemporary anchorage to a greater extent than in the case with The Dwarf. This study also shows that the criticism differs depending on the ideological view of the newspapers., Uppsatsnivå: D

In 2014 people born in the 1940s will be retired. The Swedish labour market is facing a radical change in quantity and experience. We have studied five private companies in Sweden. Our purpose was to explore how these organizations worked with what we have defined as a future key issue – the retirement of people born in the 1940s and what that involves in terms of loss of competence. For our analysis we used Ohlsson & Broomé's theory on different generations and the impact they have on knowledge transfer in organizations. The two concepts proactive and reactive behaviour is important to understand the organizations way of manage trends in the future. We came to the conclusion that all interviewed organizations were both proactive and reactive, depending on what the focus was with regards to their business strategy. Based on the age structure in the organizations, they face different challenges in the future. Since the labour market will change dramatically, the values of the new generation are important for these organizations. They are all aware that they have to address these values in order to attract educated young people.

This invention provides a method of magnetic resonance investigation of a sample, preferably of a human or non-human animal body, said method comprising: (i) producing a hyperpolarised solution of a high T1 agent by dissolving in a physiologically tolerable solvent a hyperpolarised solid sample of said high T1 agent; (ii) where the hyperpolarisation of the solid sample of said high T1 agent in step (i) is effected by means of a polarising agent, optionally separating the whole, substantially the whole, or a portion of said polarising agent from said high T1 agent; (iii) administering said hyperpolarised solution to said sample; (iv) exposing said sample to a second radiation of a frequency selected to excite nuclear spin transitions in selected nuclei e.g. the MR imaging nuclei of the high T1 agent; (v) detecting magnetic resonance signals from said sample; and (vi) optionally, generating an image, dynamic flow data, diffusion data, perfusion data, physiological data (e.g. pH, pO2, pCO2, temperature or ionic concentrations) or metabolic data from said detected signals, wherein said high T1 agent in said hyperpolarised solution has a T1 value (at a field strength in the range 0.01-5T and a temperature in the range 20-40 °C) of at least 5 seconds.