Dual image sensor designs enable applications such as 3D stereoscopic video, black box car driver recorders, gesture recognition and more. Leveraging the Lattice MachXO2 family, Lattice has created a solution which allows two image sensors to be synchronized and merged together. This solution allows two cameras to be supported by just one ISP. For example, if an ISP can handle the 1080p30 rate, then it can support two 720p30 image sensors. The Lattice dual camera solution lowers the overall system cost and power. One popular application that uses two cameras is the black box car driver recorder. In this design, one camera points out the front of the car and the other camera points to the driver. The video is recorded on a local SD card or can be sent wirelessly. By having the recorded video, one knows exactly what occured in case of an accident.
Lattice has worked with TI to offer two solutions for customers who desire a dual camera design. One solution uses the Leopard Imaging dual camera board to connect to the TI 320DM368 camera. The entire kit which includes the camera, dual image sensor board and cables can be ordered from Leopard Imaging, the part number is LNC-DUALCAM – HD IP Camera.
This dual camera demo design outputs the image in a side by side configuration. The two 720 x 960 pixel sensors are combined for an output which is 720 x 1920 at 30fps.
The second design leverages the Lattice XO2 Dual Image Sensor Design (DSIB) and can connect to the TI DM368, DM385 or the TI DM8127. When connected to the DM8127, the output of the two merged sensors can be up to 720 x 2560 at 60fps. Please contact Lattice for a further details or a demonstration of either dual camera design.