3D imaging with smartphone camera will be possible with new technology from Stanford University


3D imaging with smartphone camera will be possible with new technology from Stanford University

3D imaging with smartphone camera will be possible with new technology from Stanford University

Stanford University researchers have developed a new solution that allows standard cameras to view the environment in 3D. This technique helps cameras to measure the distance of objects and make 3D imaging widely available on mobile users.

Get a different view

reported by Digital Trends, currently measuring the distance between objects with light is only possible with specialized and expensive LiDAR systems. . LiDAR uses a laser to measure the distance of objects, and by shooting a laser at an object and examining the reflected light, it can determine how far that object is or how fast it is moving.

The new approach of the researchers Stanford can enable LiDAR with more megapixel resolution; A feature that is not possible today. Greater resolution allows LiDAR to detect targets at longer distances.

One way to provide 3D imaging capability in standard cameras is to add a light source and dimmer that turns the light on and off millions of times per second. he does. Engineers can calculate distance by measuring changes in light. It is worth noting that the existing modulators require a lot of impractical power.

The Stanford team has solved the modulator problem by using a phenomenon called acoustic resonance. Using lithium niobate wafer (a transparent crystal that is a very desirable option to solve this problem due to its electrical, acoustic and optical properties), these researchers made an audio modulator that is covered with two transparent electrodes.

Design The new modulator is simple and integrates with a proposed system that uses conventional cameras such as those built into smartphones or digital cameras.

Apple from LiDAR at iPhone 13 Pro and iPhone 13 Promax has been used. The company says that the LiDAR system provides better focusing in low light and improves the quality of portrait photos at night. Stanford University researchers have announced that the implementation of their LiDAR solution is less expensive compared to Apple’s method; For this reason, it can be used on a wider range of smartphones.

Not to mention, MIT researchers have also recently produced very low-power radars that use conventional radar technology to detect the distance of moving objects. . This technology could eventually be suitable for building a new type of camera that is used to scan transparent objects.

3D revolution

Experts have announced that the widespread use of 3D technology can significantly change the photography experience. They predict that with the availability of 3D cameras and analysis through smartphones, athletes will be able to track and analyze their movements with any skill to achieve accurate biomechanical analysis.

Experts add that 3D imaging can be used in most sports. Injuries caused by excessive activity or improper form or other poor body mechanics can be used to identify areas of improvement and correct sports movements.

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3D camera access on smartphones can improve security also increase Richard Carrier, the senior vice president and general manager of CyberLink and active in the development of face recognition technology, said in an interview:

Security based on face recognition on smartphones is at the same level as the main camera of these devices.

For example, Face ID, which many users use to access sensitive accounts like bank accounts and work emails and make payments through smartphones, runs on Apple’s TrueDepth camera system. More advanced 3D cameras can record even more depth details, and the improved accuracy, in addition to increasing the speed of facial recognition, can prevent fraudulent attempts to log into people’s accounts, Carrier said.

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