Video object segmentation has been studied extensively in the past decade due to its importance in understanding video spatial-temporal structures as well as its value in industrial applications. Recently, data-driven algorithms (e.g. deep learning) have become the dominant approach to computer vision problems and one of the most important keys to their successes is the availability of large-scale datasets. Last year, we presented the first large-scale video object segmentation dataset named YouTubeVOS and hosted the 1st Large-scale Video Object Segmentation Challenge in conjuction with ECCV 2018. This year, we are thrilled to invite you to the 2nd Large-scale Video Object Segmentation Challenge in conjunction with ICCV 2019. The benchmark would be an augmented version of the YouTubeVOS dataset with more annotations. Some incorrect annotations are also corrected. For more details, check our website for the workshop and challenge.
The challenge task is the semi-supervised video object segmentation, which targets at segmenting a particular object isntance throughout the entire video sequence given only the object mask of the first frame. Different from previous video object segmentation challenges in CVPR 2017 and 2018, we will provide much larger scale of training and test data to foster various kinds of algorithms. In addition, our test dataset will have unseen categories which do not exist in the training dataset, in order to evaluate the generalization ability of algorithms.
Our dataset contains three subsets.
Similar to a previous video object segmentation challenge DAVIS, we will be using Region Jaccard (J) and Boundary F measure (F) as evaluation metric. The overall ranking measures will be computed in the following way:
Note that we have some of the objects start appearing from the middle of videos, we will only compute the metrics from the first occurence of these objects to the end of the video.
The annotations in this dataset belong to the organizers of the challenge and are licensed under a Creative Commons Attribution 4.0 License.
The data is released for non-commercial research purpose only.
The organizers of the dataset as well as their employers make no representations or warranties regarding the Database, including but not limited to warranties of non-infringement or fitness for a particular purpose. Researcher accepts full responsibility for his or her use of the Database and shall defend and indemnify the organizers, against any and all claims arising from Researcher's use of the Database, including but not limited to Researcher's use of any copies of copyrighted videos that he or she may create from the Database. Researcher may provide research associates and colleagues with access to the Database provided that they first agree to be bound by these terms and conditions. The organizers reserve the right to terminate Researcher's access to the Database at any time. If Researcher is employed by a for-profit, commercial entity, Researcher's employer shall also be bound by these terms and conditions, and Researcher hereby represents that he or she is fully authorized to enter into this agreement on behalf of such employer.
Start: June 1, 2019, midnight
Start: Aug. 15, 2019, midnight
Aug. 30, 2019, midnight
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