Connected Component Level Method Identification in Automatic Titleboard Indexing

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Connected Component Level Method Identification in Automatic Titleboard Indexing

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Title: Connected Component Level Method Identification in Automatic Titleboard Indexing

1
Connected Component Level Method Identification
in Automatic Titleboard Indexing

Samuel James Pinson
Mark Pinson
Dr. William Barrett
Computer Science Department
Brigham Young University

2
Connected Component LevelMethod Identification

Distinguishing between machine print and
handwriting

3
Microfilm Titleboards

Type
Location
Time
Acquisition

4
Microfilm Titleboards
5
Problem Statement

To make genealogical microfilm more accessible by
automatically building a searchable index over
titleboards
Preprocess titleboards
Distinguish between machine print and handwriting
(Method identification)
Recognize machine print and handwriting (OCR)
Build searchable index

6
Method Identification

Discriminator Between Handwritten and
Machine-Printed Characters Umeda et al. 1990
U.S. Patent 4,910,787

Handwriting
Slanted
Horizontal
Vertical
7
Method Identification

Separating Handwritten Material from Machine
Printed Text Using Hidden Markov Models Guo et
al. 2001

50
50
55
45
38
62
33
67
21
79
23
77
Machine Print
Handwriting
8
Method Identification

Machine Printed Text and Handwriting
Identification in Noisy Document Images Zheng et
al. 2004

Noise
Noise
Handwriting
Noise
Machine Print
Handwriting
Handwriting
Machine Print
Machine Print
9
Method Identification

Eigenfaces Turk and Pentland 1991

N
2
N
0
71
250
68
210
44
128
53
N
10
Method Identification
11
Method Identification
12
Method Identification

The Use of Eigenpictures for Optical Character
Recognition Muller and Herbst 1998

13
Method Identification
14
Method Identification

Determining a local distance threshold via radial
density

Global Target Precision
98
Local Precision
100
99
92
15
Index Construction
Archivo
de
la
Parroquia
INDEX
BAUTISMO
115
1877
1878
Red.
12-1
Fecha
9-27-1960
16
Querying
ltbautismogt AND lt1960gt
INDEX
17
Results
18
Results
19
Future Work