← All parts of this equation

Equation 5 · Part 1 · How Edge AI Electronics and Sensor Systems Actually Work

Symbol I

∣log⁡I(t)−log⁡I(tlast event)∣≥C,\left|\log I(t) - \log I(t_{\text{last event}})\right| \geq C,
II

What this part means

I is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

I is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

An event camera, more precisely a dynamic vision sensor (DVS), inverts that design at the pixel level. Each pixel contains its own small analog circuit — a photoreceptor, a differencing amplifier, and a pair of comparators — that continuously tracks the logarithm of local light intensity and fires an asynchronous digital event only when that log-intensity has moved by more than a threshold since the pixel’s last event. Formally, a pixel emits an event when ∣log⁡I(t)−log⁡I(tlast event)∣≥C\left|\log I(t) - \log I(t_{\text{last event}})\right| \geq C. where C is a contrast threshold set by an analog bias current, and each event carries just an address, a timestamp, and a sign — brighter or darker — streamed out asynchronously on a shared digital bus rather than…

Read this part in the article →

Learn the underlying idea

A function assigns an output to each allowed input. The expression f(x) means “apply f to x”.

Open the illustrated functions: inputs become outputs guide →

See this notation across published equations →

Sources cited in the surrounding passage

These citations provide research context; check each source for the exact claim it supports.