VPRTempo introduces a fast Spiking Neural Network (SNN) for Visual Place Recognition (VPR) that is trainable within minutes and queryable in milliseconds. The system employs a temporal code based on pixel intensity to determine spike timing, improving efficiency by over 100%. VPRTempo is trained using Spike-Timing Dependent Plasticity and a supervised delta learning rule. The system's accuracy is comparable to prior SNNs and NetVLAD while being significantly faster, suitable for real-time deployment. The network architecture consists of three layers: input layer, feature layer, and one-hot encoded output layer. The key contributions include novel temporal encoding, reduced training times, and high query speeds on both CPUs and GPUs.
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