Major improvements to airborne urban mapping solution

October 8th, 2019, Published in Articles: PositionIT

Leica Geosystems introduced its CityMapper-2, a hybrid oblique imaging and lidar sensor for fast and efficient digitalisation of cities. As part of the company’s RealCity solution, which combines the sensor with the Leica HxMap high-performance processing workflow, the solution is designed to provide faster updates while preserving image quality over a wide range of flying conditions. The optical system incorporates two nadir (RGB and NIR) and four oblique 150 MP metric cameras using CMOS technology. It is equipped with the company’s mechanical forward-motion-compensation (FMC). The lidar sensor’s pulse repetition frequency has been increased to 2 MHz and features gateless multiple-pulses-in-the-air (MPiA) technology. The optical system uses backside illumination (BSI) CMOS technology and customised low-distortion lenses to deliver high image quality and photogrammetric accuracy without reducing collection efficiency. The mechanical FMC allows the system to capture high quality imagery even in difficult lighting conditions with no reduction in efficiency. The lidar sensor delivers 3 cm range accuracy and is optimised for data capture in urban landscapes. The system is available in two configurations for standard and high-altitude flights to meet customers’ needs and local flight regulations.

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