PASCAL Visual Object Classes Recognition Challenge 2011 (VOC2011) – Training & test data available

We are running the PASCAL Visual Object Classes Recognition Challenge again this year. As in 2010 there are 20 object classes for the main competitions. Participants can recognize any or all of the classes, and there are classification, detection and pixel-wise segmentation competitions. This year the action classification taster competition has a new “other” category, and there is also a taster competition on person layout (detecting head, hands, feet). There is also an associated large scale visual recognition taster competition organized by

We remind users that the PASCAL VOC Challenge evaluation server is available at and is currently providing evaluations and downloads for the VOC 2008, 2009, 2010 and 2011 challenges.

The development kit (Matlab code for evaluation, and baseline algorithms) and training/test data is now available at:

where further details are given. The timetable of the challenge is:

* 25 May 2011: Development kit (training and validation data plus
evaluation software) made available.

* 14 July 2011: Test set made available.

* 10 October 2011. Deadline for submission of results.

* 7 November 2011: Workshop in association with ICCV 2011, Barcelona.

Mark Everingham
Luc Van Gool
Chris Williams
John Winn
Andrew Zisserman