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Droplet generation through spray breakup is an unsteady and non-linear process which produces a relatively dense, highly polydisperse aerosol containing non-spherical droplets with sizes spanning several orders of magnitude. Such…

The measurements of size distribution of small particles (e.g. dusts, droplets, bubbles, etc.) are critical for a broad range of applications in environmental science, public health, industrial manufacturing, etc. Laser diffraction (LD), a…

Fluid Dynamics · Physics 2021-03-16 Santosh Kumar. S , Zilong He , Christopher Hogan , Steven Fredericks , Jiarong Hong

Obtaining in situ measurements of biological microparticles is crucial for both scientific research and numerous industrial applications (e.g., early detection of harmful algal blooms, monitoring yeast during fermentation). However,…

Biological Physics · Physics 2023-01-25 Delaney Sanborn , Ruichen He , Lei Feng , Jiarong Hong

We examine five machine learning-based architectures to estimate the droplet size distributions obtained using digital inline holography. The architectures, namely, U-Net, R2 U-Net, Attention U-Net, V-Net, and Residual U-Net are trained…

Precision devices play an important role in enhancing production quality and productivity in agricultural systems. Therefore, the optimization of these devices is essential in precision agriculture. Recently, with the advancements of deep…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Tan-Hanh Pham , Kim-Doang Nguyen

Precision spraying evaluation requires automation primarily in post-spraying imagery. In this paper we propose an eXplainable Artificial Intelligence (XAI) computer vision pipeline to evaluate a precision spraying system post-spraying…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Harry Rogers , Tahmina Zebin , Grzegorz Cielniak , Beatriz De La Iglesia , Ben Magri

Particle size measurement based on digital holography with conventional algorithms are usually time-consuming and susceptible to noises associated with hologram quality and particle complexity, limiting its usage in a broad range of…

Applied Physics · Physics 2020-01-01 Siyao Shao , Kevin Mallery , Jiarong Hong

Advanced three-dimensional (3D) tracking methods are essential for studying particle dynamics across a wide range of complex systems, including multiphase flows, environmental and atmospheric sciences, colloidal science, biological and…

Fluid Dynamics · Physics 2024-12-25 Shyam Kumar M , Jiarong Hong

The need for higher agricultural productivity has demanded the intensive use of pesticides. However, their correct use depends on assessment methods that can accurately predict how well the pesticides' spraying covered the intended crop…

Computer Vision and Pattern Recognition · Computer Science 2017-12-19 Bruno B. Machado , Gabriel Spadon , Mauro S. Arruda , Wesley N. Goncalves , Andre C. P. L. F. Carvalho , Jose F. Rodrigues-Jr

We propose a new learning-based approach for 3D particle field imaging using holography. Our approach uses a U-net architecture incorporating residual connections, Swish activation, hologram preprocessing, and transfer learning to cope with…

Image and Video Processing · Electrical Eng. & Systems 2020-02-19 Siyao Shao , Kevin Mallery , Santosh Kumar , Jiarong Hong

Pesticide application has been heavily used in the cultivation of major crops, contributing to the increase of crop production over the past decades. However, their appropriate use and calibration of machines rely upon evaluation…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Bruno Brandoli , Gabriel Spadon , Travis Esau , Patrick Hennessy , Andre C. P. L. Carvalho , Jose F. Rodrigues-Jr , Sihem Amer-Yahia

The prediction of the drop size distribution (DSD) resulting from liquid atomization is key to the optimization of multi-phase flows, from gas-turbine propulsion, through agriculture, to healthcare. Obtaining high-fidelity data of liquid…

Fluid Dynamics · Physics 2023-05-30 Tullio Traverso , Thomas Abadie , Omar K. Matar , Luca Magri

The key limitations of digital inline holography (DIH) for particle tracking applications are poor longitudinal resolution, particle concentration limits, and case-specific processing. We utilize an inverse problem method with fused lasso…

Image and Video Processing · Electrical Eng. & Systems 2019-07-24 Kevin Mallery , Jiarong Hong

We developed a digital inline holography (DIH) system integrated with deep learning algorithms for real-time detection of particulate matter (PM) and bacterial contamination in peritoneal dialysis (PD) fluids. The system comprises a…

Optics · Physics 2024-11-05 Nicholas Bravo-Frank , Nicolas Mesyngier , Lei Feng , Jiarong Hong

Early identification of drought stress in crops is vital for implementing effective mitigation measures and reducing yield loss. Non-invasive imaging techniques hold immense potential by capturing subtle physiological changes in plants…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Aswini Kumar Patra , Lingaraj Sahoo

Addressing plant diseases and pests is critical for enhancing crop production and preventing economic losses. Recent advances in artificial intelligence (AI), machine learning (ML), and deep learning (DL) have significantly improved the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Saptarshi Banerjee , Tausif Mallick , Amlan Chakroborty , Himadri Nath Saha , Nityananda T. Takur

Deploying deep learning models on resource-constrained edge devices remains a major challenge in smart agriculture due to the trade-off between computational efficiency and recognition accuracy. To address this challenge, this study…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Phi-Hung Hoang , Nam-Thuan Trinh , Van-Manh Tran , Thi-Thu-Hong Phan

Deep Learning (DL) based downscaling has become a popular tool in earth sciences recently. Increasingly, different DL approaches are being adopted to downscale coarser precipitation data and generate more accurate and reliable estimates at…

Agriculture is vital for global food security, but crops are vulnerable to diseases that impact yield and quality. While Convolutional Neural Networks (CNNs) accurately classify plant diseases using leaf images, their high computational…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 T. Ahmed , S. Jannat , Md. F. Islam , J. Noor

Wide-angle light scattering (WALS) offers the possibility of a highly temporally and spatially resolved measurement of droplets in spray-based methods for nanoparticle synthesis. The size of these droplets is a critical variable affecting…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Tom Kirstein , Simon Aßmann , Orkun Furat , Stefan Will , Volker Schmidt
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