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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 35 / No. 2: AAAI-21 Technical Tracks 2

Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification

February 1, 2023

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Authors

Ardhendu Behera

Edge Hill University


Zachary Wharton

Edge Hill University


Pradeep R P G Hewage

Edge Hill University


Asish Bera

Edge Hill University


DOI:

10.1609/aaai.v35i2.16176


Abstract:

Deep convolutional neural networks (CNNs) have shown a strong ability in mining discriminative object pose and parts information for image recognition. For fine-grained recognition, context-aware rich feature representation of object/scene plays a key role since it exhibits a significant variance in the same subcategory and subtle variance among different subcategories. Finding the subtle variance that fully characterizes the object/scene is not straightforward. To address this, we propose a novel context-aware attentional pooling (CAP) that effectively captures subtle changes via sub-pixel gradients, and learns to attend informative integral regions and their importance in discriminating different subcategories without requiring the bounding-box and/or distinguishable part annotations. We also introduce a novel feature encoding by considering the intrinsic consistency between the informativeness of the integral regions and their spatial structures to capture the semantic correlation among them. Our approach is simple yet extremely effective and can be easily applied on top of a standard classification backbone network. We evaluate our approach using six state-of-the-art (SotA) backbone networks and eight benchmark datasets. Our method significantly outperforms the SotA approaches on six datasets and is very competitive with the remaining two.

Topics: AAAI

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HOW TO CITE:

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification Proceedings of the AAAI Conference on Artificial Intelligence (2021) 929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification AAAI 2021, 929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera (2021). Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification. Proceedings of the AAAI Conference on Artificial Intelligence, 929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification. Proceedings of the AAAI Conference on Artificial Intelligence 2021 p.929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. 2021. Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification. "Proceedings of the AAAI Conference on Artificial Intelligence". 929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. (2021) "Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification", Proceedings of the AAAI Conference on Artificial Intelligence, p.929-937

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera, "Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification", AAAI, p.929-937, 2021.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. "Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification". Proceedings of the AAAI Conference on Artificial Intelligence, 2021, p.929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. "Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification". Proceedings of the AAAI Conference on Artificial Intelligence, (2021): 929-937.

Ardhendu Behera||Zachary Wharton||Pradeep R P G Hewage||Asish Bera. Context-aware Attentional Pooling (CAP) for Fine-grained Visual Classification. AAAI[Internet]. 2021[cited 2023]; 929-937.


ISSN: 2374-3468


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