Fig. 4: Location and motion detection of human subjects behind plank obstacles. | Nature Communications

Fig. 4: Location and motion detection of human subjects behind plank obstacles.

From: Vision-driven metasurfaces for perception enhancement

Fig. 4

Respiration detection results for the case where only one subject exists when observer fixate the azimuth of (a) 28°, (b) 0°, (c) −28°, respectively. Respiration detection results for the case where three subjects co-exists when observer fixate the azimuth of (d) 28°, (e) 0°, (f)−28°, respectively. Spectrograms of four behind-the-plank human motions: (g) jumping (h) squatting (i) falling (j) walking.

Back to article page