X-ray CT Scans of a Glass Sphere Phantom for 3D Processing Evaluation

The University of Texas High-Resolution X-ray CT Facility (UTCT) provides X-ray CT scans of a phantom containing 208 19-mm glass spheres arranged in a hexagonal pattern. Data is intended for evaluating 3D data processing, with variable voxel size and provided with varying degrees of down-sampling. The dataset was last updated on October 15, 2025.

Use Cases

• Benchmarking 3D image segmentation algorithms based on the known geometry of the glass spheres.
• Evaluating the effects of down-sampling and bit-depth reduction on image quality and analysis.
• Developing calibration or validation protocols for CT scanning systems using a structured phantom.
• Training or testing machine learning models for object detection in volumetric image data.

Strengths

• Contains 208 precisely sized (19-mm) reference objects in a known hexagonal pattern.
• Data includes multiple versions with varying degrees of down-sampling for comparative analysis.
• Original 16-bit data was processed to 8-bit TIFF, which may simplify handling for some workflows.

Limitations

• Description metadata is limited; actual data quality, file formats, and size require manual inspection after download.
• Column-level documentation is absent; field semantics and data structure must be inferred after download.

Provenance

Source

The University of Texas High-Resolution X-ray CT Facility (UTCT)

Collection Method

X-ray CT scanning of a manufactured phantom.

Time Range

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Freshness

Last updated 2025-10 04:08:23; freshness should be verified.

Geography

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