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For Self-Driving Cars, Sensors Galore

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Sensors in self-driving cars must resolve multiple performance challenges that involve temperature, illumination, reflectivity, navigation — and even cybersecurity.

HANK HOGAN, CONTRIBUTING EDITOR

Self-driving cars bring both opportunities and challenges to photonics-based sensors. Autonomous vehicles will need dozens of sensors of many types — lidar, camera, radar, and ultrasonic — and many sensors on millions of vehicles make the potential opportunity significant. The challenges are many as well. Cameras and lidars must operate for years across widely varying temperatures, illumination levels, and target reflectivities, while reliably producing the data needed for safe navigation. This performance has to be delivered at low cost, a feat that could be likened to...Read full article

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    Published: October 2018
    Glossary
    lidar
    Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and generate precise, three-dimensional information about the shape and characteristics of objects and surfaces. Lidar systems typically consist of a laser scanner, a GPS receiver, and an inertial measurement unit (IMU), all integrated into a single system. Here is how lidar works: Laser emission: A laser emits laser pulses, often in the form of rapid and repetitive laser...
    machine vision
    Machine vision, also known as computer vision or computer sight, refers to the technology that enables machines, typically computers, to interpret and understand visual information from the world, much like the human visual system. It involves the development and application of algorithms and systems that allow machines to acquire, process, analyze, and make decisions based on visual data. Key aspects of machine vision include: Image acquisition: Machine vision systems use various...
    lidarsmart lidarSensors & Detectorsautonomous carscamerasYole DéveloppementVelodyneQuanergy LeddarTechmachine visionOmniVisionON SemiconductorVeloVisiondriver assistFeatures

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