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  • Медичні технології

  • Рік видавництва: 2007


    Журнал: Інтерекспо Гео-Сибір


    Наукова стаття на тему 'Latest achievements in airborne surveying technology and new applications by Leica Geosystems Ag'

    Текст наукової роботи на тему «Latest achievements in airborne surveying technology and new applications by Leica Geosystems Ag»

    ?УДК 528: 71 (494)

    Peter Schreiber

    Leica Geosystems AG, Switzerland

    LATEST ACHIEVEMENTS IN AIRBORNE SURVEYING TECHNOLOGY AND NEW APPLICATIONS BY LEICA GEOSYSTEMS AG

    Leica Geosystems - when it has to be right

    With close to 200 years of pioneering solutions to measure the world, Leica Geosystems products and services are trusted by professionals worldwide to help them capture, analyze, and present spatial information. Leica Geosystems is best known for its broad array of products that capture accurately, model quickly, analyze easily, and visualize and present spatial information.

    Those who use Leica Geosystems products every day trust them for their dependability, the value they deliver, and the superior customer support. Based in Heerbrugg, Switzerland, Leica Geosystems is a global company with tens of thousands of customers supported by more than 2,400 employees in 22 countries and hundreds of partners located in more than 120 countries around the world. Leica Geosystems is part of the Hexagon Group, Sweden.

    Leica Geosystems Introduces the Leica ADS40 2nd Generation Airborne Digital Sensor.

    (Heerbrugg, 5 October 2006) Leica Geosystems announces the introduction of its Leica ADS40 2nd Generation Airborne Digital Sensor. In 2001, the company was first to introduce large-format digital cameras with its Leica ADS40. With more than 50 Airborne Digital Sensors already delivered worldwide, Leica Geosystems has now developed two new sensor heads - SH51 and SH52 - for this successful system.

    Equipped with new, patented beamsplitter technology, the SH51 Sensor Head provides perfectly co-registered color and panchromatic images for stereo viewing. The SH52 adds a stereo color-infrared capability. Professionals can now produce and use the 5-band co-registered imagery for all aerial surveying and airborne remote sensing applications. Time and costs are saved through simultaneous, wide-area acquisition of true high-resolution panchromatic, color and color-infrared digital images.

    Ultimate Goal of Uncompromising Data Capture

    The guiding single-lens design principle for the Leica ADS40 2nd Generation avoids multiple-lens image patching. Pan-colorizing (pan-sharpening) with low resolution spectral band images, that causes color distortion, is not required for the Leica ADS40 2nd Generation. Plus, optimal stereo viewing is achieved color fringe-free, due to the constant stereo and viewing angle. Thus, the Leica ADS40 2nd Generation has reached the ultimate goal of uncompromising geometric and radiometric representation of the earth's surface.

    LEADING-EDGE IMAGERY WITH LEICA GEOSYSTEMS CAMERAS AND SENSORS

    Dr. Juergen Dold, Senior Vice President of Leica Geosystems 'Imaging and Scanning Business Area states: "Since 1925 our cameras and sensors have set the

    industry standard for airborne imaging technology. The Leica ADS40 2nd Generation sensor heads continue this tradition by producing leading-edge imagery with equal resolution in all five bands. The SH52 Sensor Head has just completed pilot projects for forestry and urban applications. Its co-registered bands gave remarkable results for remote sensing needs such as forestry, while the 4-times increased sensitivity allows extended coverage and capability for large scale urban mapping. Ultimately, the lead of the 3-line sensor principle over all other large-format digital camera concepts is further increased. "

    The Leica ADS40 2n Generation is designed for versatility by providing performance, cost and exportability options. Additionally, Leica Geosystems continues to enhance its first-class global customer support network. "Those factors help make ADS40 2nd Generation Airborne Digital Sensors the first choice worldwide for airborne imagery collection", says Dr. Dold.

    Picture 1 - The Leica ADS40 2nd Generation is designed for versatility by providing performance, cost and exportability options.

    LEICA GEOSYSTEMS ANNOUNCES SIGNIFICANT ADVANCEMENT IN RANGE MEASUREMENT TECHNOLOGY

    (Heerbrugg, 5 October 2006) Leica Geosystems announces the successful development of an advanced laser distance measurement technology. It allows measurements to be made at significantly higher rates than conventional time-of-flight distance measurement systems. Unlike current time-of-flight systems, Leica Geosystems 'new "Multiple Pulses in Air" (MPiA) Technology does not depend on receiving the target reflection before starting the next distance measurement cycle. The result is the ability to double or even triple the rate at which distance data can be obtained today, without sacrificing data accuracy.

    According to Dr. Juergen Dold, Senior Vice President of Leica Geosystems 'Imaging and Scanning Business Area, "This technology has the potential of radically increasing the productivity of airborne and ground-based data acquisition

    systems. In a first step, we expect to offer our airborne LIDAR customers an upgrade path from our current industry-leading 150 kHz data acquisition rate to even higher rates. This will enable our customers to fly a significantly wider swath at the same point densities as today, or acquire significantly increased point densities with the same swaths as today. Either option ultimately leads to significant cost savings through dramatically reduced flight costs. "

    Worldwide patent applications covering Leica Geosystems 'MPiA technology are pending. The technology has been successfully tested in real-world applications, and is now ready for incorporation into product lines. "These are the kinds of changes that the market expects from a technology leader such as Leica Geosystems, and we look forward to applying this new development", says Dr. Dold.

    Picture 2 - 150 kHz LIDAR image of water treatment plant at 1250 meters

    demonstrates MPiA technology

    Examples for new applications with Leica Geosystems 'Airborne Sensors

    Development of forestry application based on ADS40 multispectral images Leica recently made the first successful steps in emulating different false color (infrared) film emulsions widely used in forestry for taxation and other tasks. These images allow working on monitors using images as in the familiar technology but plot in digital form and use the full stereoscopic support. Based on future practical experiences a partly automatic or computer supported work will be made possible.

    Special configuration of ALS50-II LIDAR scanner for corridor mapping -ALS50-CM. The ALS50-CM version is based on ALS50-II adapted to special requirements of corridor mapping like low flying height above ground level, high precision of captured data, small laser divergence, large field of view etc. As a result of limited, corridor oriented applicability; the Corridor Mapping (CM) version of ALS50 has a lower price level.

    © Peter Schreiber, 2007


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