Automatic Precise Geometric Correction for Hj-ccd Imagery
نویسنده
چکیده
Since HuanJing(HJ)-satellite has been sent successfully in September 6, 2008, in china, productions of precise geometric correction are imminently needed. Moreover, the demand for rapid processing of remote sensing data for disaster is increasing. Aiming at the characteristics of HJ-CCD imagery, a precise geometric correction technology workflow has been designed, which is a very meaningful work. It mainly includes three parts: image control point (ICP) database construction, automatic image matching and geometric correction model. SIFT algorithm and template matching method are employed to match images and polynomial correction with tiny facet of geometric correction model is employed to correct images. We do experiments using our developed prototype system to correct one scene image of HJ-CCD data. Image matching results of two matching methods above are shown and geometric correction results are shown respectively.
منابع مشابه
HJ-1-A/B optical satellite image geometric correction
Small satellite constellation of environment and disaster’s monitoring and predicting (shorted for HJ-1) is not a mapping satellite, and its parameters of attitude and orbit cannot satisfy the requirement of geometric correction using strict imaging model. On the other hand, due to the 12000 CCD detectors and large overlay of multispectral payload named CCD carried by HJ-1 satellite, the error ...
متن کاملA three-band semi-analytical model for deriving total suspended sediment concentration from HJ-1A/CCD data in turbid coastal waters
The accurate assessment of total suspended sediment (TSM) concentration in coastal waters by means of remote sensing is quite challenging, due to the optical complexity and significant variability of these waters. In this study, three-band semi-analytical TSM retrieval (TSTM) model with HJ-1A/CCD spectral bands was developed for the retrieval of TSM concentration from turbid coastal waters. Thi...
متن کاملUsing an Imperialistic Competitive Algorithm in Global Polynomials Optimization (Case Study: 2D Geometric Correction of IKONOS and SPOT Imagery)
The number of high resolution space imageries in photogrammetry and remote sensing society is growing fast. Although these images provide rich data, the lack of sensor calibration information and ephemeris data does not allow the users to apply precise physical models to establish the functional relationship between image space and object space. As an alternative solution, some generalized mode...
متن کاملA Fast Geometric Rectification of Remote Sensing Imagery Based on Feature Ground Control Point Database
This paper, on the basis of the traditional design of database for ground control point, tries to founded a fast auto-correction method of satellite remote sensing imagery based on feature ground control point database which brings local feature points as the effective supplement and aims to achieve the automatic matching between feature ground control points and original images that need geome...
متن کاملCase study of atmospheric correction on CCD data of HJ-1 satellite based on 6S model
In this study, atmospheric radiative transfer model 6S was used to simulate the radioactive transfer process in the surface-atmosphere-sensor. An algorithm based on the look-up table (LUT) founded by 6S model was used to correct(HJ-1)CCD image pixel by pixel. Then, the effect of atmospheric correction on CCD data of HJ-1 satellite was analyzed in terms of the spectral curves and evaluated again...
متن کامل