Efficient Logic Gate Networks for Video Copy Detection

• URL: http://arxiv.org/abs/2604.21694v1
• Date: Thu, 23 Apr 2026 14:01:13 GMT
• Title: Efficient Logic Gate Networks for Video Copy Detection
• Abstract summary: Video copy detection requires robust similarity estimation under diverse visual distortions.<n>Deep neural networks achieve strong performance, but their computational cost and descriptor size limit practical deployment.<n>We propose a video copy detection framework based on differentiable Logic Gate Networks.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video copy detection requires robust similarity estimation under diverse visual distortions while operating at very large scale. Although deep neural networks achieve strong performance, their computational cost and descriptor size limit practical deployment in high-throughput systems. In this work, we propose a video copy detection framework based on differentiable Logic Gate Networks (LGNs), which replace conventional floating-point feature extractors with compact, logic-based representations. Our approach combines aggressive frame miniaturization, binary preprocessing, and a trainable LGN embedding model that learns both logical operations and interconnections. After training, the model can be discretized into a purely Boolean circuit, enabling extremely fast and memory-efficient inference. We systematically evaluate different similarity strategies, binarization schemes, and LGN architectures across multiple dataset folds and difficulty levels. Experimental results demonstrate that LGN-based models achieve competitive or superior accuracy and ranking performance compared to prior models, while producing descriptors several orders of magnitude smaller and delivering inference speeds exceeding 11k samples per second. These findings indicate that logic-based models offer a promising alternative for scalable and resource-efficient video copy detection.

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