Pascal VOC 2012 dataset export does not export Attributes correctly

[matthaeusheer]

Expected Behaviour

I am labelling a "person" with an attribute "pose" which can be either "y", "n" or "o". I expect this attribute to be accessible in the produced annotation file. I export as a dataset of pascal voc 2012 format and I am in labelling a video.

Current Behaviour

The following annotation is being produced where the "pose" field is set to "Unspecified" instead of "o".

<annotation>
	<folder/>
	<filename>52.jpg</filename>
	<source>
		<database>Unknown</database>
		<annotation>Unknown</annotation>
		<image>Unknown</image>
	</source>
	<size>
		<width>1920</width>
		<height>1080</height>
		<depth>3</depth>
	</size>
	<segmented>0</segmented>
	<object>
		<name>person</name>
		<pose>Unspecified</pose>
		<occluded>0</occluded>
		<bndbox>
			<xmin>970.3649338942307</xmin>
			<ymin>70.13979867788461</ymin>
			<xmax>1003.2655636714069</xmax>
			<ymax>112.42590015117933</ymax>
		</bndbox>
	</object>
</annotation>

Possible Solution

Append the attribute to the label to produce three labels person_o, person_y, person_n. Not nice and requires postprocessing after the labelling.

Your Environment

• Git hash commit (git log -1): 034268e
• Docker version docker version: Docker 19.03.8
• Are you using Docker Swarm or Kubernetes? No
• Operating System and version (e.g. Linux, Windows, MacOS): Ubuntu 18.04

[zhiltsov-max]

Hi, the only supported pose field values currently are: Unspecified, Left, Right, Frontal, Rear.

[matthaeusheer]

Hey, does that mean that the "pose" attribute is some sort of default, predefined attribute name in voc2012? Do I have the freedom to chose other attribute names and use whatever values I want? Thanks for your support.

[zhiltsov-max]

PASCAL VOC 2012 defines pose with only these values. If you have access to sources, you can modify this fragment of code to export any values.

[zhiltsov-max]

Could you describe why do you need this functionality? Can you pick another format that supports attributes (cvat, datumaro, labelme)?