Generic decoding of seen and imagined objects using hierarchical visual features
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Abstract (arXiv)
Object recognition is a key function in both human and machine vision. While recent studies have achieved fMRI decoding of seen and imagined contents, the prediction is limited to training examples. We present a decoding approach for arbitrary objects, using the machine vision principle that an object category is represented by a set of features rendered invariant through hierarchical processing. We show that visual features including those from a convolutional neural network can be predicted from fMRI patterns and that greater accuracy is achieved for low/high-level features with lower/higher-level visual areas, respectively. Predicted features are used to identify seen/imagined object categories (extending beyond decoder training) from a set of computed features for numerous object images. Furthermore, the decoding of imagined objects reveals progressive recruitment of higher to lower visual representations. Our results demonstrate a homology between human and machine vision and its utility for brain-based information retrieval.
Key facts. Cited by 120 papers in the map (data through 14 Oct 2026). First posted on arXiv 22 Oct 2015.
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Citing papers per year: 2021: 6; 2022: 11; 2023: 24; 2024: 29; 2025: 29; 2026: 21.
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