Embedded stereo vision camera designed for TI OMAP/DM37x processors
26 March 2012
e-con Systems Inc.has introduced what it believes is the world’s first Stereo Vision camera reference design based on Texas Instruments’ OMAP/DM37x family of processors and Gumstix Overo computer-on-module (COM) series. The Stereo Camera Reference design, code-named Capella, includes a DM3730-based Gumstix Overo WaterStorm COM, a Gumstix Tobi expansion board and e-con’s camera daughter board e-CAM_9V024_STEREO.
The Capella reference design comes with a software development Kit with full source code for application development on top of V4L2 or OpenCV, enabling customers to develop their own stereo vision camera based applications. e-con Systems also provides sample applications with source, for applications such as synchronous stereo image capture, depth measurement and so on.
Applications:
- 3D analytical applications such as machine vision, mobile robotics (obstacle detection) and automotive applications including computer aided navigation and driver guidance.
- 3D object reconstruction applications such as reconstructing 3D details of sculptures, monuments, human faces etc.
- 3D video recording and playback
- 2D synchronous dual-camera applications where, two simultaneously captured images of same (or different) objects are required.
Capella runs Linux 2.6.35 and has Ethernet, HDMI Video port, USB OTG port, and a serial interface for Linux console. The Stereo Camera Engine driver is V4L2 compatible and is available with an OpenCV interface patch allowing customers to develop applications based on plain V4L2 API or the OpenCV stack. The Stereo Engine driver exposes three V4L2 interfaces to the application developers to capture the left, right and combined left+right video streams. The SDK contains sample applications using both the V4L2 interface and also OpenCV stack.
The e-CAM_9V024_STEREO is powered by a pair of 1/3in Global Shutter Monochrome Aptina CMOS image sensor MT9V024, with an active area of WVGA 752(H) x 480(V) (360690 pixels) and capability of delivering Synchronous Parallel 736(H)x480(V) monochrome video of 8-bpp grey scale images at 30 frames per second. The cameras come with pre-aligned and pre-calibrated M12 lenses on an S-mount lens holder and customers can select and calibrate the lens for specific requirements.
The two cameras are separated by a distance of 100mm (the baseline). This baseline allows accurate measurement to a depth of three meters. Customers interested in increasing the baseline or changing the lenses can approach e-con Systems for customisation.
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