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RGB-Ir Technology

OMNIVISION’s RGB-Ir technology captures both RGB and infrared (IR) images in a single sensor

Technology Benefits

RGB-Ir technology enables normal image capture from the same device for biometric authentication, gesture detection, etc.

Day and Night Vision in One Sensor
OMNIVISION’s RGB-Ir technology’s ability to capture both RGB and IR images in one device allows for both day and night vision capabilities, making it the ideal choice for today’s battery-operated security cameras for smart-home systems.
Enables Biometric Authentication
Today's mobile devices, PCs and notebooks are life hubs requiring high level of access security. The advanced infrared sensitivity of OMNIVISION’s RGB-Ir technology enables facial and gesture recognition.

Technology Features

OmniVision’s RGB-Ir technology enables our sensors to utilize IR image data with keeping high-quality color image capture.

  • Color Filter Process
    OMNIVISION’s RGB-Ir technology incorporates advanced proprietary color filter process that improves color fidelity.
  • Pattern Flexibility
    Depending on the application requirements, RGB-Ir technology’s extended flexibility accommodates 2×2 or 4×4 array patterning consist of 25% of its array to IR and 75% to RGB to capture RGB and IR images in one sensor.
  • RGB-Ir Processing
    We provide a dedicated RGB-Ir image processor and a companion ISP chip that extracts RGB and IR information separately.

Applications

OMNIVISION’s PureCel® and PureCel®Plus target smartphone, mobile and notebook/PC applications.

Product Solutions

OMNIVISION places its customers at the leading edge of imaging technology with its commitment to innovative, forward-thinking solutions.

FAQs

  • What is RGB-Ir?

    Traditional CMOS image censor employs Bayer format as color filter array. This format allows each pixel of the CMOS sensor to be excited by a specified wavelength of light, which includes color and infra-red.

    While RGB-Ir technology enables infra-red only light to be passed to the IR pixel. In the RGB-Ir CFA format, several pixels had been converted to IR pixels. And the IR pixels are sensitive only to infra-red light.

  • Benefits and Applications

    OMNIVISION’s RGB-Ir technology’s ability to capture both RGB and IR images in one device allows for both day and night vision capabilities, making it the ideal choice for today’s battery-operated security cameras for smart-home systems.

    Today’s mobile devices, PCs and notebooks are life hubs requiring high level of access security. The advanced infrared sensitivity of OMNIVISION’s RGB-Ir technology enables facial and gesture recognition.

  • What is needed to obtain both visible and IR images with RGB-Ir image sensor? (Optics’ side)

    Dual band-pass filter

    • For good color accuracy

    Dual focal lens

  • What is needed to obtain both visible and IR images with RGB-Ir image sensor? (ISP’s side)

    A companion ISP is needed to extract RGB and IR information separately

    • Extract IR image by interpolating sensor’s R, G, B and IR signal from pixels next to it.
    • Extract RGB image using the below formulas
      R’ = R – x*IR
      G’ = G – x*IR
      B’ = B – x*IR
      And R’G’B’ image is done
      *x is pre-calibrated IR removal coefficient