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检索条件"任意字段=Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data 1993"

共 35 条记录，以下是1-10 订阅

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recent advances in sensors, radiometric calibration, and processing of remotely sensed data

Recent Advances in Sensors, Radiometric Calibration, and Pro...

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recent advances in sensors, radiometric calibration, and processing of remotely sensed data 1993

The proceedings contain 42 papers. The topics discussed include: in-flight calibration of shortwave active cavity radiometers: approach and results;uncertainty analysis for the ERBE active cavity radiometers;validation tool for the earth radiation budget experiment (ERBE) nonscanner data product;optimization of the GOES-I imager's radiometric accuracy: drift and 1/f noise suppression;calibration of the visible and near-infrared channels of the advanced very high resolution radiometer (AVHRR) after launch;SPOT multitemporal calibration over stable desert areas;and definition of the calibration requirements for an imaging spectrometer system.

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IN-FLIGHT radiometric calibration OF LANDSAT-5 THEMATIC MAPPER FROM 1984 TO PRESENT

IN-FLIGHT RADIOMETRIC CALIBRATION OF LANDSAT-5 THEMATIC MAPP...

引用

Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： THOME, KJ GELLMAN, DI PARADA, RJ BIGGAR, SF SLATER, PN MORAN, MS UNIV ARIZONA CTR OPT SCIREMOTE SENSING GRPTUCSONAZ 85721

ISBN: (纸本)0819411744

The reflectance-based method is used to determine an absolute radiometric calibration of Landsat-5 Thematic Mapper for the solar reflective portion of the spectrum. Results are given for data collected at White Sands Missile Range in New Mexico on 1992-08-15. These results are compared to those obtained from applying a similar processing approach to data collected in 1984, 1985, 1987, and 1988.

关键词： Reflectivity calibration Earth observing sensors Landsat Radiative transfer Radiometry Absorption Satellites sensors Atmospheric particles

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data VISUALIZATION TECHNIQUES FOR HYPER-DIMENSIONAL data

DATA VISUALIZATION TECHNIQUES FOR HYPER-DIMENSIONAL DATA

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： FEUQUAY, JW HUGHES STX CORP EROS DATA CTRSIOUX FALLSSD 57198

ISBN: (纸本)0819411744

This paper describes two examples of the use of volumetric data visualization techniques for the exploration of remotely sensed hyper-dimensional data. The first example presents an Airborne Visible IR Imaging Spectrometer hyperspectral data set, which is organized as a stack of 2D slices, as a 3D cube. The second example extends the investigation by using volume-rendering algorithms to extract features from a multi-temporal Advanced Very High Resolution Radiometer data set.

关键词： Spectrometers data visualization Image processing sensors Composites data centers data processing Volume visualization Image visualization Infrared imaging

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calibration OF THE TAUVEX UV IMAGER

CALIBRATION OF THE TAUVEX UV IMAGER

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： BRAUN, O TOPAZ, JM BROSCH, N ELOP ELECTROOPT IND LTD REHOVOTISRAEL

ISBN: (纸本)0819411744

The astronomical ultra-violet space telescope, TAUVEX, being developed in Israel by EL-OP Ltd., in conjunction with Tel Aviv University's Dept. of Astronomy and Astrophysics, has three co-aligned 20 cm diameter telescopes, each with an imaging photon-counting detector of the Wedge & Strip Anode type. The geometric and radiometric parameters of the system must be calibrated before launch in order that the image data acquired by the detector and signal processing sub-system can be converted into accurate maps of the UV sources in the sky. We describe the calibration philosophy and methodology involved in the TAUVEX system and sub-system calibration process. Also presented are the facilities and equipment specially designed and adapted for this purpose.

关键词： calibration sensors Telescopes Collimators Ultraviolet radiation Space telescopes Optical filters Distortion Astronomy Photometry

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IN-BAND NOISE ESTIMATE FROM POWER SPECTRUM OF FOCAL-PLANE ARRAYS

IN-BAND NOISE ESTIMATE FROM POWER SPECTRUM OF FOCAL-PLANE AR...

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： JHA, US ROCKWELL INT CORP ASSD ELECTROOPT SYST ENGNANAHEIMCA 92803

A novel approach to estimate the in-band noise of an EO sensor from its power spectrum is developed and experimental results using this approach are presented.

ISBN: (纸本)0819411744

A novel approach to estimate the in-band noise of an EO sensor from its power spectrum is developed and experimental results using this approach are presented.

关键词： sensors Staring arrays Infrared sensors Stochastic processes Fourier transforms Calcium Electro optical sensors Electro optical systems Electro-optical engineering Optical engineering

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GEOMETRICAL REGISTRATION OF remotely-sensed IMAGES WITH THE USE OF THE WAVELET TRANSFORM

GEOMETRICAL REGISTRATION OF REMOTELY-SENSED IMAGES WITH THE ...

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： DJAMDJI, JP BIJAOUI, A MANIERE, R UNIV NICE SOPHIA ANTIPOLIS FAC SCIF-06108 NICE 2FRANCE

ISBN: (纸本)0819411744

Geometrical registration of two images is nowadays a current and an important step in remote sensing before any further processing and interpretation of the data. Geometrical registration of images with a different ground resolution is useful for a better comprehension of dynamical processes (i.e. deforestation, desertification), as well as for extrapolating models of interpretation obtained on small regions to large areas. We present in this paper a procedure for a fully automatic registration of remotely sensed data based on the multiresolution decomposition of the images with the use of the wavelet transform. We have successfully applied this technique to register images having the same ground resolution, (SPOT HRV and LANDSAT MSS), and different ground resolutions (SPOT HRV with LANDSAT MSS, LANDSAT TM with SPOT HRV).

关键词： Image registration Image resolution Wavelet transforms Image processing sensors Earth observing sensors Landsat Wavelets Satellites Clouds

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COMPARISON OF MSS RELATIVE radiometric calibration METHODS

COMPARISON OF MSS RELATIVE RADIOMETRIC CALIBRATION METHODS

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： HELDER, D S DAKOTA STATE UNIV DEPT ELECT ENGNBROOKINGSSD 57007

ISBN: (纸本)0819411744

Landsat Multispectral Scanner (MSS) data has the potential for being widely used in global change studies since it has been collected for nearly twenty years. It is crucial to the success of these studies that MSS data be as radiometrically accurate as possible. In order to assess the quality of relative radiometric correction algorithms, a study was undertaken to compare the two commonly used techniques: use of the internal calibrator, and use of scene statistics. A new technique was developed to quantify the observed differences. Results from this study indicated clear, consistent differences exist between the two commonly used relative calibration methods and suggest that relative radiometric calibration of MSS data can be performed more effectively using the scene statistics approach.

关键词： sensors calibration Earth observing sensors Image segmentation Landsat Lamps radiometric corrections Fourier transforms Scanners Satellites

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GENERATION OF SYNTHETIC-IMAGES FOR THE ALLEVIATION OF radiometric INFLUENCES INDUCED BY THE TOPOGRAPHY

GENERATION OF SYNTHETIC-IMAGES FOR THE ALLEVIATION OF RADIOM...

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： DATCU, M HOLECZ, F SWISS FED INST TECHNOL DIV IMAGE SCICH-8092 ZURICHSWITZERLAND

ISBN: (纸本)0819411744

This paper presents results from the application of model based techniques for an efficient correction to the topographically induced radiometric influences on the remotely sensed imagery. Thus, in a first step, relief induced geometric distortions of optical imagery must be removed, taking terrain elevation into account. In a second step the radiometry of the image is considered. Synthetic images are generated based on the Digital Elevation Models, and sun and satellite position at the time of acquisition of the image. The synthetically derived images model the image formation process for the direct lighted and shaded areas, using direct, indirect, and diffuse illumination. The resemblance of the synthesized image to reality is evaluated for a mountainous alpine region covered by snow. In a last step the data derived from the synthetic image are used for radiometric correction of the effects of the topography.

关键词： Reflectivity sensors Spatial resolution Image processing Image resolution Light scattering Sun Satellites Light Light sources and illumination

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DEVELOPMENT OF A SIGNATURE SUPERCODE

DEVELOPMENT OF A SIGNATURE SUPERCODE

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： JOHNSON, KR CURRAN, AR GONDA, TG MICHIGAN TECHNOL UNIV KEWEENAW RES CTRHOUGHTONMI 49931

ISBN: (纸本)0819411744

This paper reviews current and future signature modeling activities at KRC and TACOM. PRISM (Physically Reasonable Infrared Signature Model) and its associated modeling tools are discussed along with the implementation of the physical principles that will evolve into the SuperCode. By continuing the current efforts with PRISM and then forming a SuperCode Research Consortium to implement additional advanced features, a universal code will be available to the modeling community.

关键词： Thermal modeling Prisms Systems modeling Infrared signatures data modeling Visual process modeling Computer aided design sensors Solid modeling Visualization

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EMISSIVE REFERENCE SPHERES AS ABSOLUTE calibration SOURCES FOR AN ORBITING LWIR SENSOR

EMISSIVE REFERENCE SPHERES AS ABSOLUTE CALIBRATION SOURCES F...

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Conference on recent advances in sensors, radiometric calibration, and processing of remotely sensed data

作者： KINTNER, EC SOHN, RB MIT LINCOLN LABLEXINGTONMA 02173

ISBN: (纸本)0819411744

Emissive reference spheres will be used to calibrate the orbiting SPIRIT III LWIR sensor with respect to point sources. Such spheres can be made to approximate very closely the spectrum of an ideal blackbody. However, the temperature of the sphere must be modelled to an accuracy of 1.6K or better during the calibration measurements in spite of various sources of uncertainty over the sphere's near-Earth orbit. Observations of both standard stars and emissive reference spheres will provide an unprecedented opportunity to compare the results of two entirely distinct calibration methods.

关键词： Optical spheres sensors calibration Long wavelength infrared Error analysis Space operations Thermal modeling Tolerancing Temperature metrology data modeling

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