The need for practical and functional 3D cameras is steadily increasing as automation and mobile applications demand cheaper, more compact, and more accurate techniques. Researchers in Espoo, Finland have developed a 3D camera using light absorption that creates a novel solution in 3D imaging for short to medium ranges (0 - 10 m). The laser provides active illumination for the laser light absorption of oxygen at 761 nm while a silicon-based image sensor captures the light. This design provides a compact and low-cost solution to complement LiDAR and stereo vision cameras.
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