Biospeckle activity measurement of Indian fruits using the methods of cross-correlation and inertia moments

Ansari, Mohammad Zaheer; Nirala, Anil Kumar

doi:10.1016/j.ijleo.2012.06.081

Cited by 40 publications

(15 citation statements)

References 26 publications

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“…Once the THSP is acquired, the moment of inertia method is applied [48]. Based on this method, the co-occurrence matrix (COM) is built by the following equation:COM=[Nij],where i and j are pixel gray values and N is the times ( i followed by the j within all the columns).…”

Section: Methods and System Designmentioning

confidence: 99%

A Strain Distribution Sensing System for Bone-Implant Interfaces Based on Digital Speckle Pattern Interferometry

Zhong

Yang

et al. 2019

Sensors

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This paper aims to provide an effective measurement method for the distribution of deformations and strains focusing on the response to external loading of bone-implant interfaces. To achieve this target, a novel speckle interference imaging method is proposed by introducing phosphate buffer saline medium, in which the samples were completely placed into a phosphate buffer saline solution medium to stable the water molecules. The stability of interferometry imaging is analyzed by using the concepts of co-occurrence matrix and moment of inertia. A series of experiments to measure load-driven deformation and strain in the bone-implant interface was carried out, and the experiments results were analyzed and discussed. It shows that the proposed method is feasible and effective for the no-contact strain measurements of biomaterials in a physiological condition. The proposed strain distribution sensing system will contribute to evaluating computational simulations and improving selection of implant designs and materials.

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Section: Methods and System Designmentioning

confidence: 99%

A Strain Distribution Sensing System for Bone-Implant Interfaces Based on Digital Speckle Pattern Interferometry

Zhong

Yang

et al. 2019

Sensors

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“…Moment of inertia (IM) is based on the construction and analysis of Time of the History Speckle image (THSP) [45]. The moment of inertia method, often abbreviated as IM, has been considered to be the most effective stability evaluation method, which can return dimensionless data to characterize low or high stability of the observed material based on changes in the THSP image [46].…”

Section: A Stability Evaluation Of Speckle Patternmentioning

confidence: 99%

Effect of the Speckle Size on the Quality of Speckle Pattern in DSPI System

Zhong

Tang

et al. 2019

IEEE Access

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In order to detect the deformation and strain of materials accurately, the key is to obtain the phase information caused by dynamic loading in digital speckle pattern interferometry (DSPI). In this paper, the evaluation method of quality of the speckle pattern in DSPI system is proposed, and the influence of the size of speckle grain on the stability and contrast of speckle pattern is discussed. And then, the strain detection experiments of inactive and bioactive materials are provided with different aperture slit size under the same detection conditions. The size of speckle grain has an important influence on the quality of speckle pattern. For strain detection of inactive materials, using the small size of speckles can obtain higher quality speckle pattern under the condition of satisfying the Nyquist theorem and spectral separation. For active biomaterials, non-structural factors easily induce the instability of speckle pattern, which leads to the decorrelation of between pre-deformation and post-deformation speckle pattern. So the compromise between the stability and the information capacity of speckle images should be considered in the selection of speckle size. Experiments show that the optimum size of speckles used for strain detection active biomaterials is larger than that of inactive biomaterials under the same conditions in the same DSPI system.

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“…In agriculture, the breakpoint can be attributed to applications of BSL in fruits (tomatoes), 1975 (Briers, 1975), followed by many other applications in fruits related to maturation stages (Xu;Joenathan;Khorana, 1995;Rabelo et al, 2005;Nirala, 2014;Nassif et al, 2014;Skic et al, 2016;Retheesh et al, 2016;Costa et al, 2017), or even using fruit to test processes and improve the BSL technique (Oulamara;Tribillon;Duvernoy, 1989;Kurenda et al, 2013;Nirala, 2013;Nirala, 2014a;Nirala, 2014b;Mulone et al, 2014;Kurenda et al, 2014;Arefi et al, 2016).…”

Section: Analysis Of Biospeckle Laser Applicationsmentioning

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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Biospeckle activity measurement of Indian fruits using the methods of cross-correlation and inertia moments

Cited by 40 publications

References 26 publications

A Strain Distribution Sensing System for Bone-Implant Interfaces Based on Digital Speckle Pattern Interferometry

A Strain Distribution Sensing System for Bone-Implant Interfaces Based on Digital Speckle Pattern Interferometry

Effect of the Speckle Size on the Quality of Speckle Pattern in DSPI System

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

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