Interaktivno branje padavinskih grafov

diplomsko delo

Nejc Sušin (Author), Peter Peer (Mentor)

Abstract

V tem delu je predstavljen interaktivni program, ki omogoča digitalizacijo padavinskih grafov. Program sprejme sliko optično prebranega papirnatega traku z narisanim grafom, rezultat pa so intenzitete padavin v izbranem časovnem intervalu. Temelji na avtomatskem postopku detekcije, ki mu lahko pomagamo s prilagajanjem parametrov ali pa zaznano krivuljo ročno popravimo. Med glavnimi metodami za popravljanje so označevanje območja, ki ga želimo izpustiti iz obravnave, dodajanje točk inverzije ter ročno risanje krivulje. S pomočjo interaktivnega programa je bilo obdelanih 58 padavinskih grafov, rezultati pa primerjani z uradnimi podatki z Agencije Republike Slovenije za okolje (ARSO). Interaktivnost dokazano omogoča obdelavo širšega spektra padavinskih grafov ter izboljša rezultate avtomatskega postopka.

Keywords

padavinski graf;računalniški vid;digitalizacija;računalništvo;računalništvo in informatika;univerzitetni študij;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FRI - Faculty of Computer and Information Science
Publisher:	[N. Sušin]
UDC:	004.9:551.509.2(043.2)
COBISS:	1536556483
Views:	1822
Downloads:	172
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Interactive reading of rainfall graphs
Secondary abstract:	An interactive program for the digitalization of rainfall charts is presented. A curve is extracted from a scanned picture of a paper strip and the intensity of rainfall is read at a given time interval. The program allows us to modify the parameters and manually correct the results of an automatic rainfall chart reading algorithm, upon which the interactive system is based. The main methods used to correct the readings are selecting an area to be excluded from further analysis, adding inversion points and manually drawing the curve. Using this interactive program, 58 rainfall charts were processed and the results were compared to those of the Environmental Agency of the Republic of Slovenia. We proved that the interactivity allows a wider spectrum of charts to be processed and gives more accurate results than the automatic procedure.
Secondary keywords:	rainfall chart;computer vision;digitalization;computer science;computer and information science;diploma;
File type:	application/pdf
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Ljubljani, Fak. za računalništvo in informatiko
Pages:	XIV, 44 str.
ID:	8966539