Thursday, December 12, 2024

Smallest Footprint Sensor For Facial Recognition

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The CMOS image sensor supports AI features like human presence detection, facial authentication, and always-on functionality for IoT devices.

CMOS image sensor
CMOS image sensor

OmniVision, a global developer of semiconductor solutions, including digital imaging, analogue, and touch & display technologies, has launched the OV0TA1B monochrome/infrared (IR) CMOS image sensor. The solution fits a 3mm module Y dimension, making it suitable for notebook computers, webcams, and IoT devices. Designed for low power consumption, the sensor supports artificial intelligence (AI)-powered applications such as human presence detection (HPD), facial authentication, and always-on (AON) technology.

The image sensor is suitable for notebook manufacturers integrating human presence detection (HPD) and facial authentication into ultrathin-bezel designs, webcam developers creating compact, low-power devices, and IoT device designers enabling features like people counting and traffic monitoring.

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Built on PureCel pixel technology, its 2-micron pixel offers sensitivity and modulation transfer function (MTF) performance, supporting HPD and facial authentication. Delivering 440 x 360 resolution at 30 frames per second (fps), the OV0TA1B features a low-power 220×180 resolution mode (2.58mW at 3fps) in a 1/15.8-inch optical format. This makes it a practical choice for AI-driven and space-constrained applications in devices.

Some of the features of the image sensor:

  • Supports image sizes: 160 Kpixel (440 x 360)
  • Two on-chip phase lock loops (PLLs)
  • 2k bits of embedded one-time programmable (OTP) memory
  • Static defect pixel correction
  • Automatic black-level calibration
  • Two-wire serial bus control (SCCB)

“Stand-alone 940nm IR cameras are becoming more mainstream, especially in the latest generation of ultrathin-bezel design notebooks that feature personalized AI features and require HPD and facial authentication capabilities,” said Jason Chiang, staff marketing manager computing, OmniVision. “The OV0TA1B is the newest mono/IR sensor in our computing portfolio designed to be a cost-effective, ultra-small-footprint device; it is ideal for HPD and facial authentication in 3mm module Y bezel and smaller designs. The ultra-small size of the OV0TA1B sensor also makes it useful for webcams and IoT devices, like those used for people and traffic counting.”

For more information, click here.

Nidhi Agarwal
Nidhi Agarwal
Nidhi Agarwal is a journalist at EFY. She is an Electronics and Communication Engineer with over five years of academic experience. Her expertise lies in working with development boards and IoT cloud. She enjoys writing as it enables her to share her knowledge and insights related to electronics, with like-minded techies.

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