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Facial Recognition Software: An Update on Quickly Developing Tech

Facial Recognition Software: An Update on Quickly Developing Tech

05, Sep, 2017/ Uncategorized

Facial Recognition Software: An Update on Quickly Developing Tech

Our previous post discussed the advances in facial recognition for travel and security applications. Another eagerly anticipated application of facial recognition technology is the rumored inclusion of this feature in an upcoming iPhone model and other contemporary phones.  While Apple is notoriously tight-lipped about future products, it is widely expected that the next iPhone release will be announced on September 12, 2017, and will include facial recognition technology.  Much of the current media excitement was fueled by a recent Korean News report stating, “The new facial recognition scanner with 3-D sensors can deeply sense a user’s face in the millionths of a second.” Many analysts are predicting that facial recognition software will supplant fingerprint sensing as the primary security biometric on most new smartphones.

TechPats Facial Recognition Software Tech Update

Can the Tech Live Up to Expectations?

For this type of new feature to be successful, facial recognition technology has to tackle three important issues: accuracy, speed, and low-light performance.  Of course, most importantly, the recognition has to work well. What good would facial recognition be if the algorithm never matched anyone (or matched everyone)?

What good would facial recognition be if the algorithm never matched anyone (or matched everyone)?

It is envisioned that facial recognition may be used to unlock a user’s phone and to even replace passwords and passcodes for, e.g., financial transactions, like Apple Pay, Google Wallet, Mobile Banking. With bank accounts and personal information protected being protected behind phone security, a failure in transitioning from authentication via “Touch ID” to relying on facial imaging could be very costly.

For instance, previous facial recognition systems have had various limitations and have even been demonstrated as able to be fooled by printed photographs.  Newer systems take advantage of 3D sensors using depth-sensing technology or “structured light.” These systems follow a step-by-step facial recognition process:

  1. A structured light source provides illumination to an object (typically in the infrared spectrum)
  2. An imaging sensor, or camera is used to acquire a 2D image back to the device
  3. An object, such as a face, will distort this received light pattern
  4. The sensor will capture the reflection of the infrared light while the light pattern is invisible to the naked eye
  5. Sophisticated algorithms compute 3D information from this received data for comparison

Unlike searching through a large database of criminals or terrorists, the received data will only have to be compared with the facial profile for the device’s owner(s).

The threshold of the correlation between the baseline facial scan data and a subsequent scan may determine how secure the technology has become. For instance, what if the facial recognition finds a match between the baseline scan and your twin brother, but refuses to recognize you after growing a beard?  The upcoming products—and consumer reaction—will demonstrate if these new 3D sensors and algorithms can provide the necessary level of security.

Facial Recognition Preparing for Widespread Commercial Use

Since these 3D sensors utilize infrared energy, the devices should be able to perform their facial recognition even in the dark, allowing the user to unlock their phone in complete darkness.  While cinema-goers may be disappointed, depending on visible light or even a flash is simply not a valid solution.  Finally, recognition speed is an additional important factor in facial recognition.  Bloomberg reports that users may be able to unlock their new iPhones “within a few hundred milliseconds,” which may make the feature appealing and encourage acceptance.

Qualcomm has been the first to publicly announce products with this technology with the expansion of their Spectra platform for Android platforms  capable of improved biometric authentication and high-resolution depth sensing  “utilizing active sensing for superior biometric authentication, and structured light for a variety of computer vision applications that require real-time, dense depth map generation and segmentation.”

Structured-light systems, as well as related patents, have been around for a while.  One patent that may appear relevant, dated around 1998, discloses a “system for determining a three-dimensional profile of an object” using a light-source to project a structured light pattern on the object and an image-detecting device to detect a sequence of images.

TechPats Facial Recognition Software Update Claim

Apple’s `177 patent

Much of the recent iPhone discussion has been a result of patents granted to Apple this year.  In one Apple patent, the specification describes a “method for face detection” using a depth sensor to capture three-dimensional data and a camera to capture a two-dimensional image of the scene.  Of course, patents do not guarantee that the technology will be implemented in any upcoming devices.

But if all the rumors are correct, we may only have to wait until the September 12th to see what facial recognition features make it into the next iPhone. An earlier Apple patent filed in 2011 discloses unlocking a mobile device using facial recognition that “capture[s] a subsequent image in response to determining that the device moved to a use position, analyze[s] the subsequent image to detect a user’s face, and unlock[s] the device in response to detecting the user’s face.”

With facial recognition technology on the verge of widespread use in smartphones, it will have a significant impact on intellectual property as more companies seek to incorporate facial recognition into their own products. TechPats’ technical expertise and patent knowledge can help companies protect their intellectual property through our licensing support, patent mining, and patent monetization services. Learn more today!

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