What is 3D Sensing?
“The only constant in the technology industry is change.”
–Marc Benioff
The only constant in the technology industry is change.
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- Three-dimensional sensing is a process of capturing a real-world object’s length, width, and height with more clarity as well as in-depth detail.
- The most interesting part is – 3D sensing going to rule the next ten years right from our mobile camera to robots and drone.
Technologies used in 3D Sensing
The only constant in the technology industry is change.
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STEREOSCOPIC VISION
- Stereoscopic vision is nothing but a normal human vision.
- Capturing images is just like human eyes from two cameras then merged into a single picture.
- The variation from one camera’s capture and other one makes the in-depth 3D image.
STRUCTURED LIGHT PATTERN
- In this structured light pattern, different patterns of light(dots or line) projected on the object using laser projection. during this camera simply captures the reflected lights from the object.
- The camera mounted triangularly to the projection module then captures the reflected light.
- Pattern difference between camera an projection gives the picture perfect 3D coordinates of the object.
TIME OF FLIGHT
- ToF is also similar to the structured light pattern, here light waves are projected on the object and captured by the camera.
- The time distance between the transmission and reception are calculated and the observed co-ordination gives the good 3D image.
Apple and 3D sensor
- Apple Inc developing a 3-dimensional sensor system for their upcoming iPhone in 2019.
- It is quite different from the normal face-ID camera available in iPhone X, probably it’s going to be placed on the rear side of the device to give in-depth sensing feature to the rear camera.
- So, we can expect more augmented reality games and applications in a couple of years.
- It said to be, the new 3D sensing iPhone is developed based on Time of Flight algorithm.
Applications of 3D sensing
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Air traffic control: In 3D displays, navigation of aircraft is better compared to a 2D display.
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Oil and gas exploration: 3D displays gives more accurate seismic data which helps to detect exact place of oil and gas deposit.
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Medical operations: outer and inner organs of the human body from 3D sensing and display help to doctors and surgeons to understand patients health condition clearly.
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Self-driving car: 3D sensors produces perfect distance and height of the obstacles which improves the safe navigation of self-driving cars.
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Natural disasters: three-dimensional Geospatial data helps better preparation for natural calamity as well as rescue operations.
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Robotics: 3D sensing improves robotics performance in numerous ways like navigation, learning, responsive action, and obstacle detection etc.
Photo by Kaique Rocha from Pexels
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