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Image processing techniques for detection of soil features
Trenčiansky, Jan ; Barták, Vojtěch (advisor)
An image processing technique was applied to detect roddon soil features from UK-DMC2 base data. Roddon soil features represent former watercourses in English Fenland, now raised banks with altered soil composition. They can be clearly seen on remotely sensed imagery as bright features in contrast to the darker surrounding peat land. Based on difference in brightness of roddons and surrounding peat soil the Soil Brightness Index (SBI) was applied to detect the roddons. To identify the edges of these features where there is a large spectral contrast a non-directional filter was applied together with an image enhancing technique to better differentiate the roddons form other non-soil features. Understanding the location of roddons will allow adaptive farming practices that account for differences in soil properties, and help optimizing yields.
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Working with vector graphics in .NET
Růžička, Filip ; Brožek, Jiří (advisor) ; Hanzlík, Petr (referee)
Current version of the Microsoft .NET Framework (4.6) provides access to the basic functionality of GDI+ (Graphical Device Interface) with more than fifty of code elements (classes, interfaces, structures, enumerated types, and delegates) contained in the System.Drawing namespace. Many advanced functions are then offered in other three nested namespaces, namely Drawing2D, Imaging and Text. This work demonstrates on a complex example using of a selected set of these library functions and compares their output, time and memory requirements with its own parameterizable implementation of the corresponding planar geometric shapes, antialiasing techniques and filling closed areas. The goal of this work is to create an application - a simple SVG format (Scalable Vector Graphics) viewer - which will be able to interpret SVG file commands in a graphical user interface by both of the above methods and for each of them to provide information about the computational complexity, on the basis of which we can show the appropriateness of using one or the other approach, library functions or user-defined functions with the possibility of further optimization.
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Historical and contemporary wooden timbered buildings for living and construction solutions
Matějovský, Šimon ; Trgala, Kamil (advisor) ; Adam, Adam (referee)
The aim of this thesis was to carry out a search based on available literature that focused on historical development of timbered houses in the Czech Republic that are intended for permanent living. A survey was conducted subsequently to this search. This survey concentrated on firms that nowadays build timbered houses and also on construction solutions and structure composition of such houses. The conducted survey describes prevalent construction solutions of timbered houses in the current housebuilding sector of the Czech market.
The thesis focuses on thermal properties of today's timbered wooden structures. Next, an indicative measurement of these buildings was carried out by a blower door test and thermal imaging diagnostics. Furthermore, the thesis compares timbered structures with standard requirements for permanent housing. Interestingly, the measurements for instance showed that one new building met the requirements of the blower door test. Next, several thermography measurements demonstrated seamless heat transfer of a timbered wall as a whole.
The conclusion of the thesis summarizes the current use and construction of timbered houses in the Czech Republic. Moreover, it sums up the results of the measurements and outlines the survey results regarding the thermal properties of these houses.
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Productivity dynamics of herb layer in the thermophilous oakwood in the Nature Reservation Na Voskopě (Czech Karst) with respect to the solar radiation intensity
Mevald, Ondřej ; Černý, Tomáš (advisor) ; Josef, Josef (referee)
The Nature Reserve Na Voskopě is a special site where a long-term experiment was established in 2013, dealing with the switch of a long abandoned coppice back to its actively managed form. The project aims to examine the long-term impact of the proposed measures on the structure and diversity of plant species in herb layer especially in lighter woods at lower altitudes. The specific aim of this study was to examine the hypothesized crucial role of light conditions on the dynamics of plant biomass production in the undergrowth of such experimentally opened up thermophilous oak-dominated stand. A design was set up based on 40 permanent plots, where there were taken biomass samples from the herb layer in 2015. Further on, hemispherical images of forest canopy were photographed in the centre of each permanent plot. These images were evaluated in the analytical program WinScanopy, which calculates the amount of direct and diffuse radiation. The obtained datasets were evaluated by the regression analysis. The only decisive variable affecting the productivity of the herb layer turned to be diffuse radiation. The biomass data were also compared with light conditions sampled in the previous season (2014) as a part of ongoing experimental research. Season 2014 is characterized as a normal one and we managed to find a much stronger relationship between light conditions in 2014 and biomass productivity in 2015. Light conditions in season 2015 were significantly affected by the extremely dry and hot weather leading to strong defoliation of forest canopy. Still, we managed to demonstrate the positive impact of light conditions for the production of herb layer biomass. Weather extremes may also indicate an increase in biomass production in the next season, since a significant proportion of nutrients remained unused in the soil due to stopping the growth of vegetation. The current composition of the vegetation is very often determined by the extreme events in the abiotic environment occurring not long ago. Hemispherical images also proved as a very effective way to determine the light conditions, so it is also recommended to use for further research.
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Bayesian classification of digital images by web application
Talich, M. ; Böhm, O. ; Soukup, Lubomír
The contribution introduces web application for image classification that has been developed at the Research Institute of Geodesy, Topography and Cartography in the framework of grant project InGeoCalc (supported by Ministry of education of the Czech Republic). The web application is aimed to display, examine and classify digital image data. The data are expected to be obtained from Internet by means of Web Map Services (WMS) or from other sources (possibly non-registered). Image data from different sources can be combined and presented as composition of layers (coverage) with adjustable degrees of transparency. After gathering the data, Bayesian (supervised) classification is applied to distinguish separate regions in the image. User can choose between several classification methods and adjust pertinent parameters. Furthermore, several subsequent basic analytical tools are offered, namely computation of distances, areas or perimeters related to the classified regions, simple statistical summaries about classification results (e.g. distribution of classes, percentage of non-classified regions, etc.). The classification results and registration parameters can be saved for further use. The web application is based on common Internet standards (HTML, Javascript, SVG). The only requirement for running the application is an up-to-date Internet browser supporting SVG (Scalable Vector Graphics). Typical usage of the web application can involve land cover mapping based on satellite or aerial images. The application is available free of charge for any Internet user.
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Evaluation of Apple Brand in the Czech republic
Susová, Romana ; Toth, Štefan (advisor) ; Pavel, Pavel (referee)
The thesis covers different approaches Apple is using to attract consumers.
The paper is divided in two parts. The theoretical part includes specific attributes that all together create the final brand image and it also describes the process of building of the relationship between the brand and its customers. In this part special attention is paid to marketing mix and advertisement.
At the beginning of the second, practical, part there is an analysis of different elements of Apple brand image together with description of application of different components of marketing mix in practice. In particular this part describes concrete characteristics that make Apple stand out in tough market competition. Moreover the researcher made a closed questionnaire that aims to describe the relationship between Apple and its users in Czech Republic.
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Social perception of game management from the point of view of hunters themselves
Fojtíková, Aneta ; Obleser, Petr (advisor) ; Husinec, Václav (referee)
This bachelor thesis addresses the current issues concerning the relationship between hunters and the public. The survey is carried out through a questionnaire filled by people working in game management. The questionn fell into the hands of three hundred hunters, who come from all corners of the Czech Republic . Respondents were also of different ages and education
The purpose of the thesis is to find weaknesses in communication between hunters themselves as well as between hunters and general public and the media. It aims to also find out why hunters are negatively perceived by the public, whether they are able to realize what is the cause and propose measures to improve the image of Czech game management.
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Comparison of selected vegetation indices and determination of suitability for yield description on agricultural field
Křížová, Kateřina ; Kumhálová, Jitka (advisor) ; Novák, Petr (referee)
Calculation of vegetation indices (VI) is an effective method how to evaluate a condition of a monitored vegetation. It is a non-destructive and low-cost approach and its results are crucial for planning agronomic management within a monitored field.
Diploma thesis deals with the determination of suitability of selected VI to describe the yield variability related to topographic attributes and weather conditions. The study area was a 11.5 ha field. To derive selected VI LANDSAT 5 images with a spatial resolution of 30 m were used. These images were taken in years 2005 and 2011 for winter wheat and in years 2006 and 2010, when oat was grown. SW ENVI and ArcGIS were used to obtain specific values. Those were used for statistical analysis. The results indicated a strong relationship between all selected VI and yield, respectively topographic factor. Selected VI derived from LANDSAT 5 images can be used to describe yield variability over a monitored field.
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Recovering of Company's Website
Lang, Michal ; Lohr, Václav (advisor) ; Martin, Martin (referee)
Summary
Small business operating in villages usually face the problem of lack of customers,
especially if they offer luxury products. The budget of such companies is often limited
and therefore they cannot afford an expensive advertising. The company website is one of the few
solutions that can get customers from outside the rural areas and thus create new business
opportunities and increase revenues of such companies. The main goal of the thesis is to attract
customers to a company website and thus help small businesses seeking customers in their difficult
situation. The theoretical part starts with the basics. It describes what systems are suitable for
different kind of web pages and the main part is focused on factors that influence an overall website
performance.
The second part shows how to achieve the stated goal on an example of a small joinery
company Atyp truhlářství Lang. The company is present on the Internet since April, 2009. The
work with a real website allows to compare results before and after the changes implementation.
The practical part starts with an analysis of the original website. It determines strengths and
weaknesses of the web and it provides suggestions for improvement. After this, the academic work
deals with the implementation of suitable factors. The final chapter evaluates the original and new
version of the site and represents how the made changes are reflected in the site traffic.
Keywords
Website design, SEO, on-page factors, off-page factors, CMS, Content Management
Systems, increase site traffic
Objectives and Methodology
The main objective of diploma thesis is to increase the website traffic, its attractiveness for
customers and thus help small companies located in rural areas to get new clients. The first part
helps to achieve the stated goal by dealing with aspects influencing the overall web page
performance and also provide basic knowledge related to the website design. Consequently, the
sub-objective of this part is an identification of factors that significantly affect the site traffic. The
second part aims to apply the gained knowledge on an example web page of small company Atyp
truhlářství which faces a problem of a lack of customers. It starts with the analysis of the original
website that shows its strangeness and weaknesses. This will provide an information about possible
improvements. The part of authors own work aims to implement suitable factors from the
theoretical part into the website design. The objective of the final part is to compare the changes
made with the original design and determine if the new site solution has really improved the number
of visits and its attractiveness for customer.
2
The essential information for the masters thesis elaboration were obtained from an analysis
of printed sources as professional books, journals, annual reports and online resources as well.
Statistical data reflecting the original website traffic were extracted from MySQL database. The
new data about number of visitors were already get in friendlier form of Google Analytics outputs.
In addition to that, author also discussed his academic work with website experts and used his own
knowledge acquired during the university studies of information technology.
Results and Conclusion
The website overall performance is greatly influenced by the system on which it operates.
For this reason, the literature review provides an overview about Content Management Systems
and Static Site Generators. There are explained differences between these two approaches to a website design and are given recommendations about what kind of pages are suitable for each
approach. The main part identifies 30 on-page and off-page factors that have a positive or negative
impact on the final website traffic.
The practical part consists an analysis of the examined site. It discovered the following
weaknesses. The positioning is very bad in Search Engine Result Page and it is almost impossible
to find the web without an exact knowledge of the company name or its location. Content can be
considered as extremely poor with overall 279 words only. There were also two technical issues.
The first caused a traffic data loss for the last five years due to exceeding 50MB of MySQL memory
limit. The second was related to plugins deployment that used up the whole PHP memory limit. It
resulted in WordPress strong unstability. The website speed test was disastrous. The small page
size of 762,52kB was loaded for 4,38 seconds. An acceptable result would be less than 2 seconds.
Concerning security, the site did not use secured protocol and the next risk could pose deployed
plugins that are frequent targets of hacker attacks. The used template was not mobile-friendly and
therefore it was difficult to browse the pages on mobile device. In addition to that the graphical
appearance had a low attracting power, it was not able to adequately impress the customers. The
site was visited by an average of 25 people a day in 2011. Furthermore, only 63% of visitors come
from the Czech Republic. Unfortunately, more actual data could not be obtained because of the
data loss. After considering of all mentioned issues above was proposed a complete website
recovery with an implementation of suitable factors from literature review.
The examined website is extremely static without a dynamic content and the frequency of
updates is relatively low. The web pages are managed by a technical contributor and it is the reason
why graphical user interface of CMS is not required. After evaluation of all previous technical,
speed and security issues was selected a static site generator for the website design.
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The important chapter is represented by implementation of suitable factors that should as a complex lead to an increase of a site traffic. First important factor is a content. The original word
count of 279 words was improved to 1809 words which is 7 times more than in the past. Before
writing the articles, an analysis of relevant terms were made. Those terms are included across the
web content. The new articles are meaningful and they provide product details and customer
reviews. Moreover, the content is structured, there are 9 unordered lists included and main titles
are differentiated by importance. Each page has internal links to other subpages. The text clarity
and an inclusion of relevant terms are equal to a better rank of a page. The number of images has
decreased from 112 original images to selected 42 images on the new website. This is because of
a very bad image quality of most old pictures. The high quality images can cause customer interest
for the product, higher time on site and lower bounce rate. Meta descriptions were implemented
individually for each web page with regard to the page content. The new website was accepted by
a certification authority (CA) and the unsecured Hypertext Transfer Protocol was replaced by
Secured Hypertext Transfer Protocol (HTTPS). It means the site is trustable and secure for
browsing. There are no plugins used and therefore an attack risk is much lower. The template was
tested on 17 screen resolutions. All tests were successful and the site is fully responsive. Almost
33% of customers use some mobile device to browse a web. The current web eliminates the loss
of visitors coming from mobile devices. Furthermore, Google officially announced that secured
and responsive websites get priority. The site speed test had two rounds. The first test can be
considered as very good. The page load time was 842ms and overall page size was 1.1.MB.
Nevertheless, after the compression of large files the site became even faster. The page size
decreased by 30% to 771,6kB and the final load time speed up by 31% to 580ms. Currently, the
website is faster than 96% of all tested domains which is a perfect score. The adjusted site speed is
7,5 times faster than the original speed. No flash, advertisement or other disruptive elements are
available on the web. The web page is newly available on Google+, Pinterest and Twitter. These
factors are able to boost direct page traffic. The design is clean and simple just to avoid leaving
customers confused. The readability is also very good. Combination of black/blue text on the white
background or white text on the black/blue background doesnt cause any readability issues. Social
buttons and a quick company contact is present on each page in header and footer section. Another
change was made in traffic measurement. The website started to use Google Analytics for tracking
visitors. The actual traffic data are more accurate and the possibility of data loss is reduced.
The main goal of diploma thesis was to improve the website traffic. The web page was
measured from 01.12.2015 to 29.02.2016. The average site traffic was 23,0 visits a day in
December 2015. This number reflects the original site traffic which was around 25 visits a day with
a decrease of 8%. The biggest change in traffic development was found between 08.01.2016 to
13.01.2016 when the average site traffic was 77,2 visits a day. Those changes are explained by an
influence of social media. Author has written a post about Atyp truhlářství on Facebook on 8th
January 2016. The post was shared by 8 people and it attracted many people to visit the website.
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From January 14th to the end of the month, the average daily traffic was 32,3 visits. The last month
was noted slightly higher traffic of 32,6 visits a day. The comparison of data from December 2015
and from February 2016 shows a visible increase in number of visits in February 2016 where the
traffic was higher by 41,7%. There is a positive increasing trend in a number of visits since the
beginning of December 2015. Moreover, majority of visitors 81,3% come from the Czech Republic
and it is a better result than by the original web pages with 62% only.
The recovery of a small joinery website atyptruhlarstvi.cz was successful. It improved the
website traffic and many other aspects as content, speed, security, responsiveness, social media etc.
The web design itself and implemented factors can be considered as crucial elements that influence
the final number of visits. For this reason, the made changes on a web page can really help small
business in rural areas to get new customers. There were also identified factors that affect an overall
website performance with an emphasis on a positive site traffic development. An overview about
different website design approaches is provided as well.
References
SEARCHMETRICS. Search Ranking Factors and Rank Correlations: Understand how the deck
is stacked [online]. San Mateo, 2015. Accessible from: http://www.searchmetrics.com/wpcontent/uploads/Ranking-Factors-2015-Whitepaper-US.pdf
COSTELLO, Vic, Susan A YOUNGBLOOD a Norman YOUNGBLOOD.Multimedia
foundations: core concepts for digital design. New York: Focal press, Taylor & Francis
group, 2013. ISBN 978-0-240-81394-3.
FIELDING, Jonathan. Beginning responsive web design with HTML5 and CSS3 / Jonathan
Fielding. New York, New York: Apress, 2014. Experts voice in Web development. ISBN
9781430266945.
MITCHELL, Melanie. Standing out with Seo: Expert advice from Melanie Mitchell (collection).
United States: FT Press, 2013. ISBN 978-0-13-344320-2.
BROWN, Bruce C. How to build your own web site with little or no money: the complete guide
for business and personal use. Ocala, Fla.: Atlantic Pub. Group, c2010. ISBN 1601383045.
ELMANSY, Rafiq. Search engine optimization. Indianapolis, IN: John Wiley & Sons, Inc., 2013.
Teach yourself visually. ISBN 1118470664.
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