Table 2 Structure of annotation data, attributes, and attribute description.

From: Phase contrast time-lapse microscopy datasets with automated and manual cell tracking annotations

No <Element>(Description) Contains Attributes   Attribute Description Usage
1.  <AnnotationDocument> (root element) This element encapsulates all other elements. Version={[0.0,inf]}
DateTime=
{“ ”}
Host={“ ”}
Specifies the version of the annotation data framework.
Specifies the date and time.
Specifies the host.
AnnotationDocument <AnnotationDocument Version = “”>
2. <fs> (folder structure; houses multiple sets of tracking annotations using <f> elements) This element contains <f> elements. None N/A. AnnotationDocument / fs
<fs>
<f>…</f>
<f> … </f>
</fs>
3. <f>
(folder; describes visualization parameters for a set of tracking annotations, houses a set of tracking annotations using <as> elements)
This element contains a <as> element name={“ ”}
vis={0|1}
Specifies the name of the folder.
0 Hides the folder.
1 Displays the folder.
AnnotationDocument / fs / f
<f name=“” vis=“”>
<as> … </as>
</f>
4.  <as> (annotation structure; houses annotations associated with cells at the beginning of the image sequence and/or their descendant cells in <a> elements) This element contains a number of <a> elements None N/A. AnnotationDocument / fs / f / as <as> <a> … </a> <a> … </a> </as>
5. <a> (annotation; describes visualization parameters for a cell, houses annotations associated with the cell in the <ss> element and its descendant cells in <as> elements) This element contains one <ss> and a number of <as> child elements id={[1.inf]}
type={“ ”}
vis={0|1}
brush={“#000000”}
pen={“#000000”}
Specifies the cell’s unique ID number
Specifies annotation type.
0 Hides the folder.
1 Displays the folder.
Specifies the brush (fill) color.
Specifies the pen (border) color.
AnnotationDocument / fs / f / as / a <a id = “” type = “” vis=“” brush=“” pen=“”> <ss> … </ss> <as> … </as> <as> … </as>
</a>
6a.  <ss> (state structure; describes the first frame a cell appears, houses all annotations associated with the status of the cell in <s> elements) This element contains a number of <s> elements fi={[0, inf]} Specifies the first frame index that the cell appears. AnnotationDocument / fs / f / as / a / ss
<ss fi=“”> <s> … </s>
<s> … </s>
</ss>
6b. <s> (state; describes the status of a cell at a particular frame index) This element describes the state of the cell in the frame index i={[0,inf]}
x={[0.0,inf]}
y={[0.0,inf]}
f={“ ”}
s={[0,18]}
Specifies the frame index.
Specifies the cell’s x-position in the image.
Specifies the cell’s y-position in the image.
Specifies whether the result was generated from interpolation or “I” (for human-generated ground truths).
Specifies cell state (Table 3).
AnnotationDocument / fs / f / as / a / ss / s <s i=“” x=“” y=“” f=“” s=“”> </s>