Figure 1.

Conceptual image acquisition and reconstruction flow. Reflected light pulses from the objects enter the image sensor through the lens. The prototype image sensor is composed of a macro-pixel array, with sub-pixels SP1–SP4 constituting each macro-pixel. Temporally random exposure codes are applied to the modulators of each pixel to obtain compressed images. The light signals are then reconstructed and converted into a depth map. In this example, because each sub-pixel has four taps (G[1]–G[4]), 16 exposure codes are applied to each macro-pixel.