Data/hora: 09/06/2024 06:01:38

Provedor de dados: | Engenharia Agrícola
País: | Brazil
Título: | DEVELOPMENT OF A TRANSFER FUNCTION FOR WEIGHT PREDICTION OF LIVE BROILER CHICKEN USING MACHINE VISION
Autores: | Amraei,Somaye; Mehdizadeh,Saman A.; Nääs,Irenilza de A.
Data: | 2018-09-01
Ano: | 2018
Palavras-chave: | Automatic weight estimation; Image processing; Ellipse fitting; Transfer function modeling.
Resumo: | ABSTRACT The objective of this study was to process digital images to investigate the possibility of broilers body weight estimation based on the dynamic model. For this experiment, 2440 images were recorded by a top-view camera from 30 birds. An ellipse fitting algorithm was applied to localize chickens within the pen, by using a generalized Hough transform. Chickens’ head and tail were removed efficiently using the Chan-Vese method. After that, using image processing, six body measures were calculated. Next, they were used to design a Transform Function (TF) model with weight measurements as output. Second-order dynamic models were used to predict the weight of life broiler chicken, without delay, stable and with the highest R2 were predominantly selected according to the Young Identification Criterion (YIC) criterion chosen models. It was observed that predicted values rigorously follow the real values. Moreover, the relative body weight errors of chickens in the early days of grow-out was much more than last days. The accuracy of TF for body weight prediction from a comparison between measured (absolute) and predicted total life body weights were estimated for all studied broiler chicken (R2=0.98).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500776
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/1809-4430-eng.agric.v38n5p776-782/2018
Formato: | text/html
Fonte: | Engenharia Agrícola  v.38 n.5 2018
Fonte: | info:eu-repo/semantics/openAccess