Papers

20 results
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Article Tier 2

Intelligent Digital Holographic systems to counteract microplastic pollution in marine waters

Researchers developed a digital holography system capable of detecting and classifying microplastic particles in seawater in a label-free, high-throughput manner. The system can identify plastic particles that are otherwise invisible to the naked eye and can be adapted for use with microfluidic devices. This technology offers a faster and more compact alternative to traditional microscopy methods for marine microplastic monitoring.

2022 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea) 4 citations
Article Tier 2

Microplastic Identification via Holographic Imaging and Machine Learning

Researchers combined holographic imaging with machine learning algorithms to automatically identify and classify microplastics in water samples, achieving accurate particle detection without manual microscopy. This automated approach could significantly speed up microplastic monitoring in environmental samples.

2019 Advanced Intelligent Systems 155 citations
Article Tier 2

Automatic Detection of Microplastics by Deep Learning Enabled Digital Holography

Researchers developed a digital holography system combined with deep learning to automatically detect and identify microplastics in water without manual image analysis. The system processes raw holographic images directly, offering a faster and more scalable approach to microplastic monitoring in environmental samples.

2020 Imaging and Applied Optics Congress 12 citations
Article Tier 2

High-throughput microplastic assessment using polarization holographic imaging

Researchers built a portable, low-cost system that uses holographic imaging and polarized light combined with deep learning to automatically detect, count, and classify microplastics in water in real time — without lengthy sample preparation. This tool significantly speeds up microplastic monitoring and could be widely deployed for environmental surveillance.

2024 Scientific Reports 36 citations
Article Tier 2

Smart polarization and spectroscopic holography for real-time microplastics identification

Researchers developed a new optical imaging system called SPLASH that simultaneously captures polarization, holographic, and texture data from tiny particles — without needing a traditional spectrometer — and used machine learning to identify different types of microplastics with high accuracy. This approach could enable faster, more practical real-time monitoring of microplastic pollution in water.

2024 Communications Engineering 30 citations
Article Tier 2

Micro-Objects Classification for Microplastic Pollution Detection using Holographic Images

Researchers developed a machine learning system that uses holographic 3D images to automatically classify microplastics in water samples, distinguishing them from other microscopic particles with high precision. Current microplastic monitoring is slow and labor-intensive, so automated detection tools are essential for large-scale environmental surveillance. This approach could significantly speed up the monitoring of microplastic pollution in aquatic environments.

2024 2 citations
Article Tier 2

Identification of microplastics in a large water volume by integrated holography and Raman spectroscopy

A new technique combining holography and Raman spectroscopy was demonstrated to identify plastic pellets suspended in a large volume of water without physical contact. This non-destructive approach could enable real-time, in-water microplastic detection for environmental monitoring.

2020 Applied Optics 45 citations
Article Tier 2

Computational polarized holography for automatic monitoring of microplastics in scattering aquatic environments

Researchers developed an integrated imaging system based on computational polarized holography for automatic monitoring of microplastics in aquatic environments. The system enables accurate 3D tracking of dynamic microplastic particles, and a hybrid de-scattering algorithm substantially improves image quality even in turbid water conditions. An unsupervised clustering method was also developed to identify and classify different microplastics based on their multimodal features without manual annotation.

2025 APL Photonics 5 citations
Article Tier 2

Compact holographic microscope for imaging flowing microplastics

Researchers developed a compact holographic microscope capable of imaging flowing microplastics in aquatic environments, providing a fast, quantitative method for real-time characterization of plastic particle size and shape distributions.

2021 7 citations
Article Tier 2

Digital holographic approaches to the detection and characterization of microplastics in water environments

This review examines advances in using digital holography as a high-throughput tool for detecting and characterizing microplastics in water. Researchers discuss both the hardware and software developments, including the growing role of artificial intelligence for classification tasks. The study highlights the emergence of field-portable holographic flow cytometers as a promising technology for real-time water monitoring of microplastic contamination.

2023 Applied Optics 20 citations
Article Tier 2

Microplastic pollution monitoring with holographic classification and deep learning

This study used digital holographic microscopy combined with deep learning to classify microplastic particles in water samples, achieving high classification accuracy and demonstrating the potential for automated, high-throughput microplastic monitoring.

2021 Journal of Physics Photonics 67 citations
Article Tier 2

Material analysis with polarization holography and machine learning

Researchers developed a polarization holographic imaging system combined with machine learning to identify different materials, demonstrating the approach on microplastic identification. This novel optical method could become a fast, non-destructive tool for classifying microplastics in environmental samples.

2023 1 citations
Article Tier 2

Polarization Holographic Imaging for High-throughput Microplastic Analysis

Researchers developed a polarization holography system integrated with deep learning for high-throughput microplastic detection and analysis in aqueous environments. The system enables dynamic, real-time multimodal monitoring of microplastics by leveraging polarization contrast to distinguish particles in liquid samples.

2023 3 citations
Article Tier 2

Microplastic pollution assessment with digital holography and zero-shot learning

Researchers developed a digital holography system combined with zero-shot machine learning to identify and characterize microplastics in environmental samples without requiring labeled training data, offering a promising automated tool for large-scale microplastic monitoring.

2022 APL Photonics 31 citations
Article Tier 2

Snapshot Polarization-Sensitive Holography for Detecting Microplastics in Turbid Water

Researchers developed a new imaging technique combining holography and polarimetry to detect microplastic particles in turbid water, a setting where traditional detection methods struggle. The approach uses differences in how light polarizes when passing through plastic versus natural particles to distinguish microplastics even in murky conditions. The study demonstrates a promising tool for faster, more practical monitoring of microplastic pollution in real-world water environments.

2023 ACS Photonics 27 citations
Article Tier 2

Real-time microplastic detection using polarization digital holographic microscope

Researchers developed a real-time microplastic detection system using a polarization digital holographic microscope, enabling identification and characterization of MP particles in water based on their optical properties without the need for chemical staining or extensive sample preparation.

2025
Article Tier 2

Holographic and polarization features analysis for microplastics characterization and water monitoring

Researchers explored digital holography and polarization imaging as a combined technique for characterizing and classifying microplastics in water, computing features including angle of polarization (AoP) and degree of linear polarization (DoLP) to distinguish microplastics from biological and natural particles. The method demonstrated potential for real-time, non-contact, in situ microplastic detection and water quality monitoring.

2023 4 citations
Article Tier 2

Polarization-sensitive digital holography for microplastic identification through scattering media

Researchers designed a polarization-sensitive holographic imaging system capable of identifying transparent microplastics through scattering media by measuring the degree of linear polarization (DoLP) as an angle-independent discriminating feature. The system enables non-destructive differentiation of microplastic types in turbid or complex optical environments where conventional imaging methods fail.

2023 3 citations
Article Tier 2

Identification of Microplastics Based on the Fractal Properties of Their Holographic Fingerprint

Researchers developed an AI-enabled holographic imaging approach to identify microplastics in water using the fractal properties of their holographic fingerprints, offering a fast, label-free identification method.

2021 ACS Photonics 57 citations
Article Tier 2

Geometric-Optical Model of Digital Holographic Particle Recording System and Features of Its Application

Not relevant to microplastics — this paper describes a calibrated geometric-optical model for a submersible digital holographic camera used to study plankton in the ocean, improving the accuracy of particle size and position measurements.

2024 Photonics 2 citations