Table 3.

Comparison of the spike camera sensor and the event camera sensor

FeatureSpike cameraEvent camera
TriggerAccumulation of light intensity reaching a thresholdChange in brightness (temporal contrast) exceeding a threshold
OutputA stream of binary spikesA stream of “events,” each containing the pixel coordinates, a timestamp and the polarity of the brightness change (positive or negative)
Information codedAbsolute brightness (encoded in the spike frequency)Change in brightness
Data representationA sequence of spikes over timeA sequence of asynchronous events

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