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VLIZ observatory data: an R Shiny application for validation of biodiversity observations from imaging sensors
Citation
Mortelmans, J. (2026). jonasmortelmansvliz/ImagingValidationApp: v1.0.1 (v1.0.1). Zenodo. https://doi.org/10.5281/zenodo.18429119
  https://doi.org/10.5281/zenodo.18429119

Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description

Imaging sensors are widely used in marine observatories to collect biodiversity observations, but image-based data typically require manual validation before further use. We present an R Shiny application developed within the VLIZ observatory framework to support the validation of biodiversity observations derived from imaging sensors.

The application allows users to browse large sets of images organised in folders, visually inspect individual images, and assign validation or annotation labels using a predefined taxonomy. Images can be labeled individually or in bulk. Validated results are stored in a simple tabular format with user attribution and can be exported for integration into downstream workflows.

The application is sensor-independent and can be applied to image data from different imaging platforms, providing a practical tool for routine validation of imaging-based biodiversity observations.

more

ImagingValidationApp is an interactive Shiny application designed to: (1) Browse .tif plankton images in subfolders; (2) Select images and assign labels based on taxonomy; (3) Track progress for each subfolder and overall dataset and (4) Export validated labels to CSV files for downstream analysis

The app dynamically generates label buttons based on a taxonomy file and color-codes them according to type (e.g., detritus, phytoplankton, copepod) 

  • Dynamic taxonomy buttons: Buttons are generated from taxonomy.csv, with type-specific colors
  • Progress tracking: Overall dataset and per-subfolder progress bars with a playful copepod icon
  • Caching: Efficient loading of .tif images using base64 encoding
  • Export: Save labeled datasets to CSV files
  • Validate All: Option to validate all images in a folder with a single click
  • User tracking: Labels are saved along with the username for multiple annotators

Contributors
Vlaams Instituut voor de Zee (VLIZ), moredata ownerdata creatorowner

Related datasets
Parent dataset:
VLIZ observatory data: shipboard underway plankton biodiversity observations by flow-through imaging (Plankton Imager, Pi-10) in the Southern North Sea, more


Dataset status: In Progress
Data type: Software/models/scripts
Data origin: Research: field survey
Metadatarecord created: 2026-01-30
Information last updated: 2026-01-30
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy