Gjorgji Strezoski

Computer Vision, Deep Learning, Visual Analytics

The Average Artwork

Using the millions of images contained in the OmniArt dataset we created humanity’s average artwork. After averaging every painting, sculpture, installation, costume, figurine and photograph in the dataset we came up with a centrally symmetrical brown blur. This image can be interpreted in many different way. Having the central and peripheral lighter regions can signify the common light directions in painting and photography. Light can come to the center as a focus point in portraits or from the corners or top in landscapes.

OmniArt at ICT Open 2018

The ICT.OPEN event is organised annually by the Netherlands Organisation for Scientific Research (NWO) under the auspices of ICT research Platform Netherlands (IPN). It is made to showcase Dutch ICT research and present active projects amongst which is the VISTORY project with the OmniArt dataset. Our latest work on the OmniArt benchmark is going to be presented there. Join us at our poster on post number 13 on March 19th and 20th in the Flint Theater in Amersfort, The Netherlands.

Object Level Annotations Engine for OmniArt

Object play a key role in understanding what is happening in an image. Using our object level annotation tool we have annotated 5000 data samples so far for objects that are not so common or are not easy to translate from real world images. For common objects that do not change their appearance significantly we can use the knowledge obtained from the real world. For example, bicycles have had the same primitive parts for a while now - two wheels, a frame, a seat and a power transfer mechanism from the feet to the wheels.

2.5M Data Samples in OmniArt

Today OmniArt hit the 2.5M mark in the number of data samples it contains. Our system is listening for changes as you are reading this post and expanding the dataset even further. In the current form, OmniArt features more than 2 million different faces in paintings, sketches and drawing. Our model’s gender estimation is that 70% of the faces are male and 30% are female. Female portraits mostly contain more than one person in their content while male subjects are mostly alone.


Deep models are at the heart of computer vision research recently. With a significant performance boost over conventional approaches, it is relatively easy to treat them like black boxes and enjoy the benefits they offer. However, if we are to improve and develop them further, understanding their reasoning process is key. Motivated by making the understanding process effortless both for the scientists who develop these models and the professionals using them, in this paper, we present an interactive plug&play web based deep learning visualization system.

Fundamentals of Data Science - on DataCamp

We created a DataCamp classroom for the students participating in the Fundamentals of Data Science course. Joining this classroom provides access to premium content and courses on DataCamp for the next 6 months. Follow this link to check out the classroom.

The OmniART dataset released

In the previous post I introduced a paper in which we build a shared representation of artistic data based on multiple attributes related to it. The data used in that paper is now a full featured, museum-centric dataset containing more than 1M photographic reproductions of artworks with rich metadata. The dataset is still growing and can be obtained from this site. The dataset is growing by the minute, with more and more images being gathered in the background.

OmniART on ArXiv

OmniArt: Multi-task Deep Learning for Artistic Data Analysis is a paper about a multi-task deep architecture that learns joint representations of data based on multiple tasks. The motivation behind this work is to determine whether looking at artistic data from multiple aspects is beneficial to deep models like it is for the human professionals and can that information be captured in a learned representation of the data. In this paper we also introduce a new structured artistic dataset with rich metadata dubbed OmniART which will be publicly released uppon publication.

First post

For some reason I had to create a first post… :)