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Fig. 4 | BMC Medical Imaging

Fig. 4

From: A new tool for assessing Pectus Excavatum by a semi-automatic image processing pipeline calculating the classical severity indexes and a new marker: the Volumetric Correction Index

Fig. 4

Algorithm for preliminary inner wall contour a Binary image representing lung region. Yellow line represents outer chest curvature. In blue there are the perpendicular lines, generated every 12th step. In red there are the intersection points resulting from recursive algorithm. b Gray-scale image on which inner mask boundary points are indicated in green, while intersection points found by recursive algorithm in red. This is clearly a rough contour of inner chest, including vertebral body, and thus further corrections are required

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BMC Medical Imaging

ISSN: 1471-2342

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