Refining edges to sub-pixel level in images of molten metals and alloys

• Autorzy: Fabijańska A. , Strzecha K. , Koszmider T. , Bąkała M.

Warianty tytułu

PL

Poprawa jakości krawędzi na poziomie subpikselowym w obrazach ciekłych metali i ich stopów

• Języki publikacji: EN

Abstrakty

EN

In this paper problem of edge detection in images of heat-emitting objects is regarded. In the considered images edges are significantly blurred due to the thermal effects. The method for improving quality of edge detection is introduced. The proposed approach determines edges with sub-pixel accuracy. The main concept of the proposed method is to create continuous functions out of the image derivative values. Results of applying the proposed method to images of heat-emitting specimens of metals and alloys are presented and discussed.

PL

W artykule rozważono problem detekcji krawędzi w obrazach prezentujących obiekty emitujące promieniowanie termiczne. Krawędzie w analizowanych obrazach są w znacznym stopniu rozmyte. W artykule zaprezentowano metodę wykrywania krawędzi z dokładnością subpikselową. Główną ideą zaproponowanej metody jest budowa ciągłych funkcji na podstawie dyskretnych wartości pochodnych obrazu. Wyniki działania zaproponowanego algorytmu w odniesieniu do analizowanej klasy obrazów zostały zaprezentowane i przedyskutowane.

Słowa kluczowe

EN

image analysis; edge detection; subpixel accuracy

PL

analiza obrazu; detekcja krawędzi; dokładność subpikselowa

• Wydawca: Wydawnictwa AGH
• Czasopismo: Automatyka / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
• Rocznik: 2010
• Tom: T. 14, z. 3/1
• Strony: 411--422
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr., tab.

Twórcy

autor

Fabijańska A.

• Computer Engineering Department, Technical University of Lodz, Poland

autor

Strzecha K.

• Computer Engineering Department, Technical University of Lodz, Poland

autor

Koszmider T.

• Computer Engineering Department, Technical University of Lodz, Poland

autor

Bąkała M.

• Computer Engineering Department, Technical University of Lodz, Poland

Bibliografia

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