Table 4 The fields of an individual figure in the JSON file in the final data.

From: DeepPatent2: A Large-Scale Benchmarking Corpus for Technical Drawing Understanding

Field Name

Meaning

Example

id

A unique number representing an individual figure segmented from a compound figure

1

patentID

The patent ID followed by the patent approval date

USD0836880-20190101

patentdate

The patent approval date

2019-01-01

figid

Segmented/individual figure label

1

caption

The figure caption directly extracted from the patent XML file

Fig. 1 is a front, top, and left side perspective view of a pet treat according to the new design;

object

The object name automatically extracted from the figure caption

Pet treat

aspect

The viewpoint automatically extracted from the figure caption

front, top, and left side perspective view

figure_file

The original figure file name

USD0836880-20190101-D00001.png

subfigure_file

The segmented figure file name as shown

USD0836880-20190101-D00001_1.png

object_title

The title of the patent

Pet treat

x_figure

The x coordinate of the upper left vertex of the segmented figure’s bounding box in pixels, measured from the upper-left-corner of the original figure

614

y_figure

The y coordinate of the upper left vertex of the segmented figure’s bounding box in pixels, measured from the upper-left-corner of the original figure

91

w_figure

The width of the segmented figure’s bounding box in pixels

969

h_figure

The height of the segmented figure’s bounding box in pixels

2740

W_label

The width of the segmented figure’s label’s bounding box, normalized with respect to the original figure

0.0439147

H_label

The height of the segmented figure’s label’s bounding box, normalized with respect to the original figure

0.0502626

L_label

The normalized coordinate of the upper left vertex of the segmented figure’s bounding box, measured from the upper-left corner of the original figure

0.119197

T_label

The normalized coordinate of the upper left vertex of the segmented figure’s bounding box, measured from the upper-left corner of the original figure

0.861215