Radiometric correction of color cryosection images for three-dimensional segmentation of fine structures

Márquez, Juan Francisco; Schmitt, Francis

doi:10.1007/bfb0046944

Cited by 1 publication

(1 citation statement)

References 4 publications

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“…Air exposure, during pauses between slicing and photograph sessions, caused irregular dark patches. This unexpected feature of the VHP color images was first described in [16]. At that time, the authors worked on a 3D reconstruction of the pulmonary artery, where the porous parenchyma of the lungs presented these color variations, and the respective ROI included a large portion of the esophagus; its color intensity boundaries were also affected by the inhomogeneity artifacts.…”

Section: Correction Of Regional Color Heterogeneities In the Vhp Imagesmentioning

confidence: 94%

Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

Gastélum

Mata

Brito-de-la-Fuente

et al. 2015

Med Biol Eng Comput

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We aimed to provide realistic three-dimensional (3D) models to be used in numerical simulations of peristaltic flow in patients exhibiting difficulty in swallowing, also known as dysphagia. To this end, a 3D model of the upper gastrointestinal tract was built from the color cryosection images of the Visible Human Project dataset. Regional color heterogeneities were corrected by centering local histograms of the image difference between slices. A voxel-based model was generated by stacking contours from the color images. A triangle mesh was built, smoothed and simplified. Visualization tools were developed for browsing the model at different stages and for virtual endoscopy navigation. As result, a computer model of the esophagus and the stomach was obtained, mainly for modeling swallowing disorders. A central-axis curve was also obtained for virtual navigation and to replicate conditions relevant to swallowing disorders modeling. We show renderings of the model and discuss its use for simulating swallowing as a function of bolus rheological properties. The information obtained from simulation studies with our model could be useful for physicians in selecting the correct nutritional emulsions for patients with dysphagia.

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Section: Correction Of Regional Color Heterogeneities In the Vhp Imagesmentioning

confidence: 94%

Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

Gastélum

Mata

Brito-de-la-Fuente

et al. 2015

Med Biol Eng Comput

View full text Add to dashboard Cite

show abstract

Radiometric correction of color cryosection images for three-dimensional segmentation of fine structures

Cited by 1 publication

References 4 publications

Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

Building a three-dimensional model of the upper gastrointestinal tract for computer simulations of swallowing

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