Segmentation of heterogeneous document images : an ... - Tel
Segmentation of heterogeneous document images : an ... - Tel Segmentation of heterogeneous document images : an ... - Tel
tel-00912566, version 1 - 2 Dec 2013 (a) Binary image (b) Vertical projection profiles (c) Smoothed projection profiles (d) First derivatives of smoothed profiles Figure 5.2: First steps in line detection to obtain initial lines and gaps for a single document image. 90
tel-00912566, version 1 - 2 Dec 2013 Figure 5.3: Initial text and gap regions for document images in figures 5.1 and 5.2. Text line separators can be drawn in the middle of each gap (white). 91
- Page 49 and 50: is assigning a label to a region of
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- Page 57 and 58: 3. Repeat for m = 1, 2, ..., M •
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- Page 61 and 62: Chapter 4 Region detection tel-0091
- Page 63 and 64: The next advantage of using CRFs is
- Page 65 and 66: weights that are assigned to edge a
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- Page 75 and 76: f = [y c = 0] × [y tl = 0] f = [y
- Page 77 and 78: (a) Ground-truth (b) y c = 0 tel-00
- Page 79 and 80: ∂l λ = ∑ ( ∑y∈Y f k (y s ,
- Page 81 and 82: incorrect [100]. Several sufficient
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- Page 105 and 106: • The fifth step is to remove ext
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- Page 111 and 112: the two children. The root node rep
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- Page 123 and 124: • fn (false negative) is the numb
- Page 125 and 126: 2 ∗ RA ∗ DR F − Measure = RA
- Page 127 and 128: • ”-tn”: This option uses the
- Page 129 and 130: [12] T. M. Breuel. Two geometric al
- Page 131 and 132: [39] B. Gatos, A. Antonacopoulos, a
- Page 133 and 134: [64] K. P. Murphy, Y. Weiss, and M.
- Page 135 and 136: [91] M. Stamp. A revealing introduc
- Page 137 and 138: Index tel-00912566, version 1 - 2 D
tel-00912566, version 1 - 2 Dec 2013<br />
(a) Binary image<br />
(b) Vertical projection pr<strong>of</strong>iles<br />
(c) Smoothed projection pr<strong>of</strong>iles<br />
(d) First derivatives <strong>of</strong> smoothed pr<strong>of</strong>iles<br />
Figure 5.2: First steps in line detection to obtain initial lines <strong>an</strong>d gaps for a single<br />
<strong>document</strong> image.<br />
90
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