The ISL79985 replaces up to nine discrete components with a single chip to provide board space. An around view monitor system processes 360° around video from four cameras and then stitches the four images into a single birds-eye, top-down view.
“These combined images are then sent to the main head unit as a single video stream,” explained Jonpaul Jandu, Senior Marketing Manager at Intersil. “Around view monitor systems are increasingly popular and rear camera displays will be compulsory in US cars from 2018.”
The US National Highway Traffic Safety Administration estimates that rear view cameras can reduce back-over fatalities by more than 50%. Accordingly, automotive image sensor penetration in vehicles is increasing, and ABI Research estimates shipments will reach 197million by 2020.
The ISL79985’s MIPI-CSI2 interface claims to lower system EMI and reduces the number of pins compared to a traditional parallel interface. Both decoders include automatic contrast adjustment (ACA) image enhancement feature that adapts to rapidly changing lighting conditions. ACA is said to automatically increase or reduce brightness and contrast to optimise the image for greater visibility and safety in low light and sunlight glare conditions.
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