Detecting background and foreground with a laser array system

Hernández-Díaz, Teresa; Vázquez-Cervantes, Alberto; Gonzalez-Barboza, José-Joel; Barriga-Rodríguez, Leonardo; Herrera-Navarro, Ana M.; Baldenegro-Pérez, Leonardo-Aurelio; Hernandez, H.

doi:10.1016/j.measurement.2014.12.004

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…This work proposes a way through which to homogenize the information of different models, defining a global space where all the trajectories can be mapped regardless of the model used to obtain the dynamics of movement of objects of interest (the objects of interest in the models are people who are moved from one point to another within the viewing area of a distributed two-camera system). A different model is applied to each camera to detect movement dynamics, temporal differences [32], and Gaussian mixtures [61]. In particular, temporal differences is a model that is tolerant to light changes [32], whereas Gaussian mixture is a widely used model with static cameras [62].…”

Section: Optical Flowmentioning

confidence: 99%

Dynamic Queries through Augmented Reality for Intelligent Video Systems

Montes-Martínez,

Jiménez-Hernández,

Herrera-Navarro

et al. 2023

ASI

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Artificial vision system applications have generated significant interest as they allow information to be obtained through one or several of the cameras that can be found in daily life in many places, such as parks, avenues, squares, houses, etc. When the aim is to obtain information from large areas, it can become complicated if it is necessary to track an object of interest, such as people or vehicles, due to the vision space that a single camera can cover; this opens the way to distributed zone monitoring systems made up of a set of cameras that aim to cover a larger area. Distributed zone monitoring systems add great versatility, becoming more complex in terms of the complexity of information analysis, communication, interoperability, and heterogeneity in the interpretation of information. In the literature, the development of distributed schemes has focused on representing data communication and sharing challenges. Currently, there are no specific criteria for information exchange and analysis in a distributed system; hence, different models and architectures have been proposed. In this work, the authors present a framework to provide homogeneity in a distributed monitoring system. The information is obtained from different cameras, where a global reference system is defined for generated trajectories, which are mapped independently of the model used to obtain the dynamics of the movement of people within the vision area of a distributed system, thus allowing for its use in works where there is a large amount of information from heterogeneous sources. Furthermore, we propose a novel similarity metric that allows for information queries from heterogeneous sources. Finally, to evaluate the proposed performance, the authors developed several distributed query applications in an augmented reality system based on realistic environments and historical data retrieval using a client–server model.

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Section: Optical Flowmentioning

confidence: 99%

Dynamic Queries through Augmented Reality for Intelligent Video Systems

Montes-Martínez,

Jiménez-Hernández,

Herrera-Navarro

et al. 2023

ASI

Self Cite

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“…Additionally, with ultrasonic radiation assisted synthesis the time span involved is only 30-60 min. This method allows the preparation of large amounts of anatase phase in a very short time period and also successive reactions can be performed simultaneously [12]. Conventional methods for synthesis takes more time to produce nanoparticles with less yield.…”

Section: Introductionmentioning

confidence: 99%

Structural and Morphological Studies of TiO2 Nanorods Synthesized by Sonochemical Route

Boini¹,

Barray²,

Vajapeyajula³

et al. 2018

ijcrset

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Preparation technique of TiO2 nanoparticles was carried out by Sonochemical method which uses ultrasound for chemical reaction. The ultrasound intensity plays two different roles. The dispersion and production of nanoparticles with broken chemical bonds. Titanium tetraisopropoxide, ethanol and sodium hydroxide are used as precursor materials. Sonochemical process at different amplitudes were carried out at room temperature. Further formed TiO2 Nanoparticles were characterized through X-Ray diffraction (XRD), Particle Size Analyzer (PSA), Transmission Electron Microscopy (TEM).

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