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  Date: 07/07/2015

Melexis offering ToF evaluation kit for gesture recognition in automotive

Melexis is offering time-of-flight (ToF) EVK75023 evaluation kit for its imaging device MLX75023 QVGA (320x240pixels) resolution ToF sensor with high dynamic range DepthSense pixels enabling it to work at bad light conditions.

The kit is developed in partnership with BlueTechnix. EVK75023 board is compact and measures 130mm x 105mm x 60mm. It is designed to test ToF sensing capabilities under tough-to-handle application conditions such as ambient light variations. MLX75023 imaging device can handle 120klux of background light.

The EVK75023 uses Gigabit Ethernet interface to send real-time 3D images with frame rates of up to 60fps. Complex gestures are processed using C-based API or via the Matlab SDK.

The platform consists four main elements:
• A pair of illuminating units - each with a set of 6 LEDs capable of producing a peak optical output of 10W.
• A sensor board - incorporating the MLX75023 sensor, a standard M12 lens mount plus objective with a field of view up to 60°, a quad-channel data converter and programmable logic (through which both the sensor and the LEDs are controlled).
• An ARM-based processing board - featuring an i.MX6x Freescale microprocessor, which is responsible for compiling the acquired ToF data then subsequently communicating this to a laptop, via the Gigabit Ethernet connection, for analysis.
• An interface board - on to which all of these different subsystems are placed.

“By using Melexis’ automotive-grade ToF offering, automobile engineering teams will be able to deploy HMIs which are robust enough to deal with difficult working environments, where they are exposed to dramatic alterations in light levels, while still hitting the necessary price points to ensure economic viability,", states Kristof Lieben, Application Engineer for ToF Systems at Melexis. “The addition of this new evaluation kit, gives engineers the functionality needed to make an initial appraisal of the design set up, so that it can be optimized for the particular surroundings.”

For more information on the Melexis EVK75023 visit: www.melexis.com/EVK75023MLX75023

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