Technology Fundamentals
Multi-spectral imaging allows Methode's biometric sensors to collect and process biometric images in a manner that is more robust, more inclusive and more reliable than other fingerprint and vein sensors. We can achieve this because multi-spectral imaging enables the measurement of human skin structural characteristics that are at and beneath the surface.
Conventional fingerprint sensors rely on inferior technologies that are only able to scan the surface of the skin. Many conditions can occur that prevent or interfere with the contact of the skin and the imaging surface. Multi-spectral imaging looks past the surface into the internal structure of the finger to reveal the unique characteristics.
Rather than rely on total internal reflectance, multi-spectral imaging applies illumination from multiple angles of incidence and across a broad spectrum to reveal details not apparent from a conventional approach. These multiple images are reconstructed to form a composite image that contains all of the data, and furthermore removes artifacts caused by surface contaminants
Applications & Capabilities
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Wet Environments
Conventional biometric sensors fail to acquire images in wet and high humidity environments because fluids either fill the valleys of the fingerprint or cause corruption of the acquisition due to physical measurement effects such as capacitance.
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Dry Environments
Conventional biometric sensors fail to acquire images in dry and low humidity environments because consistent contact with the sensor platen is not achieved. No contact means no image.
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Dirty Environments
Conventional biometric sensors fail to acquire images in dirty environments because contamination can both fill the valleys of the fingerprint and cross ridges of the finger, generating image artifacts and loss of detail.
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Elderly User
Conventional biometric sensors fail to acquire good images on users that have soft collagen or other aging effects on their fingers because ridges and valleys become more compressed, thereby presenting a poorly defined structure and surface.
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Bright Light
Conventional biometric sensors fail to acquire images in bright light because of washout of the image caused by light bleeding under the finger.
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High-Speed Copper Transceivers
Bus Bars
Power Rail
Touch Screens
Radio Remote Controls