Fully automatic detection of the vertebrae in 2D CT images – the Talk

Yea finally I gave the talk for my Publication “Fully automatic detection of the vertebrae in 2D CT images” Paper 7962-11 at SPIE Medical Imaging 2011, Conference 7962 Image Processing (see index) in front of about 200 people.

Everything went fine. Just some nice questions right after the talk and some hints afterwards. Hey – some guys even remembered the talk 2 days later! šŸ™‚

Thanks, SPIE Medical Imaging.

Fully automatic detection of the vertebrae in 2D CT images

FINALLY submitted the paper which we sent to the SPIE Medical Imaging ConferenceĀ  (and got accepted!)


Knowledge about the vertebrae is a valuable source of information for several annotation tasks. In recent years, the research community spent a considerable effort for detecting, segmenting and analyzing the vertebrae and the spine in various image modalities like CT or MR. Most of these methods rely on prior knowledge like the location of the vertebrae or other initial information like the manual detection of the spine. Furthermore, the majority of these methods require a complete volume scan. With the existence of use cases where only a single slice is available, there arises a demand for methods allowing the detection of the vertebrae in 2D images. In this paper, we propose a fully automatic and parameterless algorithm for detecting the vertebrae in 2D CT images. Our algorithm starts with detecting candidate locations by taking the density of bone-like structures into account. Afterwards, the candidate locations are extended into candidate regions for which certain image features are extracted. The resulting feature vectors are compared to a sample set of previously annotated and processed images in order to determine the best candidate region. In a final step, the result region is readjusted until convergence to a locally optimal position. Our new method is validated on a real world data set of more than 9 329 images of 34 patients being annotated by a clinician in order to provide a realistic ground truth.

More Information and the paper as PDF can be found at my publication site.