The biospeckle method for the investigation of agricultural crops: A review

Zdunek, Artur; Adamiak, Anna; Pieczywek, Piotr M.; Kurenda, Andrzej

doi:10.1016/j.optlaseng.2013.06.017

Cited by 128 publications

(86 citation statements)

References 65 publications

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“…The quantification of biological activity through biospeckle laser has been correlated with parameters linked to the maturation of fruits and vegetables, such as soluble solids, acidity and firmness (Zdunek et al, 2014;Skic et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits

Costa

Pinto

Braga

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TKnowing the maturation of the Acrocomia aculeata (macaw palm) fruit is decisive for harvest to be performed when the fruit has a higher content and quality of oil. There are different approaches to monitor maturation and they can be classified as destructive and non-destructive. Variables obtained by optical instruments have been used to determine maturation stage. The present study evaluated the relationship between the biological activity measured by the optical technique of biospeckle laser and firmness, measured in the Acrocomia aculeata fruit pulp between the 41 st and 61 st week after flowering. The biological activity was quantified by biospeckle images, while the fruit pulp firmness was determined by digital penetrometer. Correlations between variables were evaluated during maturation and in the senescence of fruits. According to the results, significant correlation between biological activity and firmness was found for both evaluated conditions, demonstrating that biospeckle laser can be an effective non-invasive indicator of Acrocomia aculeate fruit maturation assisting in the determination of the moment of harvest.Relação entre a técnica do biospeckle laser e a firmeza dos frutos de Acrocomia aculeata R E S U M O O conhecimento da maturação dos frutos de Acrocomia aculeata (macaúba) é determinante para que a colheita seja realizada no momento em que o fruto apresente maior quantidade e qualidade de óleo. Existem diversas abordagens para monitorar a maturação, classificadas como destrutivas e não destrutivas. Variáveis obtidas por instrumentos óticos vêm sendo utilizadas para determinar, de forma não destrutiva, o estádio de maturação. Neste trabalho foram avaliadas a relação entre a atividade biológica mensurada pela técnica ótica do biospeckle laser e a firmeza da polpa dos frutos de Acrocomia aculeata entre as 41ª e 61ª semanas de maturação, após a florada. A atividade biológica foi quantificada a partir das imagens do biospeckle enquanto a firmeza da polpa dos frutos foi determinada por um penetrômetro digital. Foram avaliadas as correlações entre as variáveis durante a maturação e na senescência dos frutos. A partir dos resultados foi constatada correlação significativa entre atividade biológica e firmeza para as duas condições avaliadas demonstrando que o biospeckle laser pode ser um indicador eficiente não invasivo da maturação dos frutos da Acrocomia aculeata auxiliando na determinação do momento de colheita.

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Section: Introductionmentioning

confidence: 99%

Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits

Costa

Pinto

Braga

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…A wide range of applications of imaging techniques for agricultural products have been used to assess the physical and chemical properties of commercial agricultural products such as apples (Nicolai et al, 2007;Zdunek et al, 2014), barley (Zapotoczny, 2012), beets (Arenas-Ocampo et al, 2012), date fruits (Mireei et al, 2010), eggs (Asadi et al, 2012), maize seeds (Hernandez et al, 2011), rose peduncles (Matsushima et al, 2013), wheat (Arefiet al, 2011), as well as other biological material (Briseño-Tepepa et al, 2008;Gonzalez-Ballesteros et al, 2006). Int.…”

Section: Introductionmentioning

confidence: 99%

Automatic Non-destructive Quality Inspection System for Oil Palm Fruits

Makky

Soni

Salokhe

2014

International Agrophysics

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A b s t r a c t. In this research a non-destructive, rapid and cost effective examination machine for the estimation of the ripeness fraction, oil content and free fatty acid level in oil palm fresh fruits bunch was developed. The automatic machine-vision based inspection system provided consistency, rapid estimation and acceptable accuracy results in non-destructive manner. Fresh fruits bunch samples from Tenera cultivar (7 to 20 years trees) were taken from Cimulang plantation, Bogor, Indonesia. Two statistical analysis methods were used: a forward stepwise multiple linear regression analysis and a multilayer-perceptron artificial neural network analysis. The best prediction of ripeness and oil content models were obtained using the latter method, while the best free fatty acid prediction model was developed by the first method. The models were then employed in the machine-vision inspection systems of the machine. The system best prediction accuracy of ripeness, oil content and free fatty acid models was 93.5, 96.41, and 89.32%, with standard error of prediction being 0.065, 0.044 and 0.068, respectively. The system was tested through a series of field tests, and successfully examined more than 12 t of fruits bunch per hour, without causing damage.K e y w o r d s: oil palm, fresh fruits bunch, automatic quality inspection, machine vision, non-destructive evaluation

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“…BRAGA JÚNIOR, R. A Applications in Biosystems Braga, 2008) became well known in the literature from medicine (Aizu;Asakura, 1991;Fujii et al, 1987) to agriculture (Oulamara;Tribillon;Duvernoy, 1989;Zdunek et al, 2014), measuring many sample attributes under observation. Thus, the complexity of biological tissues or cells represents great challenge to identify or isolate the major phenomenon responsible for the boiling effect in speckle changes (Cardoso et al, 2011;Braga et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

When noise became information: State-of-the-art in biospeckle laser

Braga

Alves²

2017

Ciênc. agrotec.

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Laser was presented to science and industry in the 1960s and shortly became a useful tool in many areas, with applications based on its multiple characteristics such as coherence of light, which presents a phenomenon known as interference pattern, or speckle, when beam returns from an illuminated surface. Despite great application of speckle pattern, its residual presence, for example, in interferometric approaches was considered as a noise, demanding filtering. However, grains themselves became information as their dynamic changes in time started to be linked to biological sample activity. Dynamic laser speckle has been since then a phenomenon widely used to monitor biological activities in many areas from agriculture to medicine. It is known as biospeckle laser (BSL) when adopted in biological material, with high sensitivity to follow very tiny movements in biological tissues, linked to changes in speckle provided by scatterer activities inside and outside cells. Since the 1970s, biospeckle laser usage follows a crescent technologic spiral where technological developments opened room for new applications, while new demands regarding biological monitoring forced the development of new methodologies. Therefore, potential adoption of the phenomenon as a sensor, for instance, in agricultural and medical processes, as well as constant offer of new devices provided new turns in the BSL technologic spiral and opened room for technique improvement. In this study, I present a short history of biospeckle laser (BSL) with applications and development associated with challenges regarding its usage in portable and accessible devices or even in commercial equipment. And the history was packed in a temporal diagram identifying the breakpoints responsible for improvements in the use of the technique.Index terms: Optical metrology; biosystems; challenges. RESUMOO laser foi apresentado à ciência e à indústria em 1960, e rapidamente tornou-se uma ferramenta útil à muitas áreas do conhecimento, que fazem uso de suas múltiplas características, como é o caso da coerência da luz, que é responsável pelo fenômeno conhecido como padrão de interferência, ou speckle; este padrão de interferência ocorre quando a luz retorna do material iluminado formando uma figura de interferência para o observador. Apesar da grande aplicação, a presença residual do padrão de speckle em abordagens interferométricas apresentavase como um ruído que demanda filtragem. Apesar da dificuldade em alguns casos, os grãos de speckle tornaram-se fonte de informação em situações dinâmicas, quando suas mudanças começaram a ser relacionadas à atividade do material biológico iluminado. Speckle laser dinâmico tornou-se o termo usado para denominar o fenômeno que passou a ser usado para monitorar a atividade biológica e não biológica em aplicações desde a agricultura até aquelas relacionadas à medicina. Este fenômeno também é conhecido como biospeckle laser (BSL), quando aplicado em material biológico, e com grande sensibilidade para seguir os menores movimentos ...

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The biospeckle method for the investigation of agricultural crops: A review

Cited by 128 publications

References 65 publications

Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits

Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits

Automatic Non-destructive Quality Inspection System for Oil Palm Fruits

When noise became information: State-of-the-art in biospeckle laser

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