Data/hora: 20/06/2024 11:47:59

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 14/03/2007
Data da última atualização: | 10/08/2009
Autoria: | CRUVINEL, P. E.; VIEIRA, S. R.; CRESTANA, SILVIO; MINATEL, E. R.; MUCHERONI, M. L.; TORRE NETO, A.
Título: | Image processing in automated measurements of raindrop size and distribution.
Ano de publicação: | 1999
Fonte/Imprenta: | Separata de: Computers and electronics in agriculture, v. 23,p. 205-217, jul. 1999.
Idioma: | Inglês
Conteúdo: | A rapid method for evaluating raindrop size and size distribution has been developed. It is based on image processing with correlation analysis in the frequency domain. This technique has the advantage of being  a direct measurement method that  automatically identifies and counts raindrops. Calibration was carried out using a standard image with known raindrop sizes, ranging from less than 0.1 to over 85 mm in diameter, have been automatically recognized and successfully measured. Error was not larger than 1.5%. In addition, practical examples of use of the method for determining characterisitcs of raindrops in rainfall are presented.
Palavras-Chave: | Correlation analysis; Raindrop measurements.
Thesaurus Nal: | soil conservation.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (55440-1) - UPC - SP - -- - SP16728 -  - 16728 - DIS