“Inside the Bible”Segmentation, annotation and retrieval for a new

browsing experience

Daniele Borghesani

International Doctorate school on Information and Communication Technologies

English for academic purposes I

Overview

1.Goals

2.Text segmentation

3.Picture segmentation

4.Results

5.Conclusions

Overview

1.Goals

2.Text segmentation

3.Picture segmentation

4.Results

5.Conclusions

Dataset description

Dataset description

• Holy Bible of Borso d’Este (1450-1471 d.C.)

• Illuminated manuscript

• A lot of illustrations (biblical episodes, animals, symbols, court life scenes…)

• 1200+ high resolution pages

Manual annotation

Our project

Text recognition

Texture analysisPreprocessing

Illustrations classification

Text Illustrations

Decorated initials Decoration Picture

Annotationdatabase

Imagesdatabase

Feature annotation

User interfaceCBIR

Our project

• Automatic analysis of Bible pages

• Extraction of valuable pictures

• Addition of translations, commentaries, references…

• Finally, media station with an appealing user interface

(museums)

Obscura HP Multi-Touch Video Wall

Overview

1.Goals

2.Text segmentation

3.Picture segmentation

4.Results

5.Conclusions

Text Segmentation

1. Block analysis with autocorrelation

2. Directional histogram

• Sum of pixel along each direction

3. Modeling with mixtures of Von Mises distributions

• Very good for handling of angular data

• Compact representation (5 values for a mixture

of two Von Mises distributions)

Text Segmentation

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Text!Text

Text Segmentation

Overview

1.Goals

2.Text segmentation

3.Picture segmentation

4.Results

5.Conclusions

Picture Segmentation

3. Preprocess to focus on most important blobs of pixels

(1) Original image (2) Background suppression and Labeling (fast)

(3) Morphology (4) Blob filling

Picture Segmentation

4. Block analysis

b) SVM classification on the pages…

a) SVM learning with a

training set of positive

and negative samples ...

...

Features: color (HSV and RGB histogram), texture (gradients), low frequency coefficients

Overview

1.Goals

2.Text segmentation

3.Picture segmentation

4.Results

5.Conclusions

Results

Results

Retrieval by similarity

Browsing with Sammon Mapping

Conclusions

• We are studying a set of techniques in order to analyze the

Holy Bible of Borso d’Este

• Our goal is to produce a media station, available both locally

(museums) and remotely (web app), to “touch” this

untouchable masterpiece

Thank you!