Tesseract page segmentation algorithm?

[chulwoo pack]

Hi everyone,

Does anyone know what kind of method/algorithm is being used in the tesseract's fully automated page segmentation?

I am specifically interested in the segmentation portion rather than any other pre-processing steps, such as deskewing or noise-removal process. I have tried really hard to find any documentation that might specify the sequence of its process or the algorithm is based on particular paper, etc.

Thank you.

[Balachandar Suresh]

Hi,
    If you are still looking at this. Here you go. 
https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/35094.pdf