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High resolution DSM generation from ALOS PRISM data - pre-launch simulation and assessment plans

High resolution DSM generation from ALOS PRISM data - pre-launch simulation and assessment plans,10.1109/IGARSS.2005.1526210,Junichi Takaku,Noriko Fut

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High resolution DSM generation from ALOS PRISM data - pre-launch simulation and assessment plans   (Citations: 10)
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The Advanced Land Observing Satellite (ALOS) has been developed to contribute to the fields of mapping, precise land coverage observation, disaster monitoring, and resource surveying and will be launched in 2005. The Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) carried at ALOS satellite is expected to generate worldwide Digital Maps in respects of its high resolution and stereoscopic observation. The development and evaluation of the software for generating digital surface model (DSM), based on this aim of ALOS operation, is now undertaking for the purpose of equipping the system which producing DSM semi-routinely in the Earth Observation Research and Application Center (EORC). In this paper, the statuses of pre-launch simulations and DSM assessment plans are described. PRISM consists of three panchromatic radiometers for forward, nadir, and backward views and acquires each image in the same orbit at almost the same time. It enables to generate more precision DSM frequently than usual stereoscopic observations. For this specific stereo image configuration, the triplet images matching algorithm is applied for the DSM generation. To evaluate the algorithm, three line scanner (TLS) data is used as the PRISM simulation data. The DSM generation using the JERS-1 OPS stereo images is being performed as the operational simulation. The basic functions of the software such as bundle adjustment, DSM mosaic, mask operation, etc. are evaluated in those simulations. The accuracy assessment of generated DSM is planned to be performed using the LIDAR DSM data, SRTM data, GCP etc.
Conference: Geoscience and Remote Sensing IEEE International Symposium - IGARSS , 2005
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    • ...PRISM is intended to produce elevation data according to the positional accuracy standards of topographic maps of scale 1:25,000 [13]...

    Jose A. Goncalves. Automatic image orientation and DSM extraction from ALOS-PRISM triplet...

    • ...The major characteristics of the image-matching algorithm for DOGS-AP are as follows [7]‐[9]: 1) area-based grid matching with cross-correlations; 2) simultaneous triplet image matching on epipolar geometry; 3) coarse-to-fine (CTF) image pyramid; 4) cross-correlation patch size dynamic optimization...

    Junichi Takaku, et al. PRISM On-Orbit Geometric Calibration and DSM Performance

    • ...The correlation based triplet images matching algorithm have been exclusively developed for DSM and ortho-image generations since before the ALOS launch for this PRISM specific configurations [1], [2] and [3]...

    Junichi Takaku, et al. High Resolution DSM Generation from ALOS PRISM - Calibration Updates-

    • ...Principal-agent theory studies the economic relations of market participants, which are principal-agent relations and incentive and restraint mechanisms of principal-agent relations under the condition of asymmetric information [12] ...

    Yan-Fu Zhang, et al. The DSM Optimal Incentive Mechanism Based on Principal-Agent Theory

    • ... mission precise high resolution Digital Surface Model (DSM) are necessary allover the world and PRISM performs the alongtrack triplet stereo observations by forward, nadir and backward independent optical line sensors of 2.5m ground resolution for those objectives (Fig. 1). The correlation based triplet images matching algorithm have been exclusively developed since before the launch for this PRISM specific configurations [1], [2] and [3]...
    • ...DSM generating algorithm is the correlation based triplet stereo images matching algorithm exclusively developed for PRISM [1], [2], [3]...

    Junichi Takaku, et al. High resolution DSM generation from ALOS PRISM

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