Phase mosaic with minimize noise in time-of-fight sensor

In time-of-flight 3D application, sensors detect modulated light responses for depth calculation. To measure the distance, time-of-flight camera needs 4 phases. Typical method needs to 4 frames to obtain 4 phases which has motion blur, low frame rate. To solve those problems 2-tap operation was considered. But it has a problem in removing fixed pattern noise. In this paper, we propose the phase to reduce disadvantages in typical Time-of-flight camera. We will analyze the mosaic pattern with considering noise. And we compare the performance among mosaic patterns and typical method.