Human-like scene interpretation by a guided counterstream processing

Author:

Ullman Shimon1ORCID,Assif Liav1,Strugatski Alona1,Vatashsky Ben-Zion1,Levi Hila1,Netanyahu Aviv2ORCID,Yaari Adam2ORCID

Affiliation:

1. Department of Computer Science, the Weizmann Institute of Science, Rehovot 76100, Israel

2. Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139

Abstract

In modeling vision, there has been a remarkable progress in recognizing a range of scene components, but the problem of analyzing full scenes, an ultimate goal of visual perception, is still largely open. To deal with complete scenes, recent work focused on the training of models for extracting the full graph-like structure of a scene. In contrast with scene graphs, humans’ scene perception focuses on selected structures in the scene, starting with a limited interpretation and evolving sequentially in a goal-directed manner [G. L. Malcolm, I. I. A. Groen, C. I. Baker, Trends. Cogn. Sci. 20 , 843–856 (2016)]. Guidance is crucial throughout scene interpretation since the extraction of full scene representation is often infeasible. Here, we present a model that performs human-like guided scene interpretation, using an iterative bottom–up, top–down processing, in a “counterstream” structure motivated by cortical circuitry. The process proceeds by the sequential application of top–down instructions that guide the interpretation process. The results show how scene structures of interest to the viewer are extracted by an automatically selected sequence of top–down instructions. The model shows two further benefits. One is an inherent capability to deal well with the problem of combinatorial generalization—generalizing broadly to unseen scene configurations, which is limited in current network models [B. Lake, M. Baroni, 35th International Conference on Machine Learning, ICML 2018 (2018)]. The second is the ability to combine visual with nonvisual information at each cycle of the interpretation process, which is a key aspect for modeling human perception as well as advancing AI vision systems.

Funder

Israel Science Foundation

Minerva Foundation

The D. Dan and Betty Kahn Foundation

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

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