CREATION OF DIGITAL SURFACE MODELS USING RESURS-P STEREO PAIRS Alexey Peshkun Deputy Head of Department 15th International Scientific and Technical Conference FROM IMAGERY TO MAP: digital photogrammetric technologies Cancun, Mexico Resurs-P satellite Main characteristics of GEOTON-L1 sensor Focal length, mm 4000 Diameter of the entrance pupil, mm500 Aperture1:8 Field of view, deg518 Pixel size, m panchromatic spectral 66 1818 GSD: panchromatic, m multispectral, m Span width, km38 Spectral bands, m : panchromatic blue green red red edge NIR 1 NIR Number of simultaneously used bands1-5 bit per pix10 Resurs-P satellite Main characteristics of Complex wide field multispectral sensors characteristics Values Medium resolution High resolution Optic system: Focal length, mm Aperture Field of view, deg 40 1:4 5430 200 1:3 1170 Span width, km GSD: panchromatic, m spectral, m Spectral bands, m : panchromatic blue green red NIR 1 NIR Pixel size, m panchromatic multispectral 55 1010 bit per pix12 Resurs-P satellite Main characteristics of Hyperspectral sensor Span width, km30 GSD, m25-30 Spectral bands, m Number of bandsmore than 96 Spectral resolution, nm5-10 Resurs-P satellite Orbit parameters Typecircular sun-synchronous Height, km475 Inclination, deg97.28 Revisit time, days3 Orbital period, min94 Imaging modes Linear imaging Linear imaging can be performed with a constant roll and pitch, and with a given azimuth. Deviation of the spacecraft roll and pitch from the nadir possible up to 45 , yaw - up to 60 . Duration routes from 2 to 300 seconds. flight direction s w a t h w i d t h Imaging modes Areal imaging flight direction s w a t h w i d t h Imaging modes Stereoimaging Stereoimaging is performed at a single turn with a deviation by the pitch. Length of routes - up to 115 km. flight direction s w a t h w i d t h Resurs-P stereoimaging Stereopairs stereopair Deviation in pitch, degrees Convergence angle, degrees Image 1Image 2 A B Triplet C D Additional stereopairs E F G H flight direction Data processing Photogrammetric processing was performed by using the "Photomod" v.6. The block of 7 images was formed during processing. To perform the block adjustment 7 controls and 76 check points were used. control point check point Data processing Stereopairs adjustment (data level 1) Stereopair, Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters A B C D F E G H flight direction Data processing Accuracy of DSM Stereopair, Number of check points MAX deviation, meters RMS, meters A C D H flight direction Data processing Stereopairs adjustment (data level 2) Stereopair, Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters A B C D F E G H flight direction Data processing DSM (input data level 2A) Stereopair, Number of check points MAX deviation, meters RMS, meters D LV 2 Data processing Stereopairs adjustments reports Input data kevel Stereopair, Convergence angle, degrees Number of control points Number of check points Max deviation dXY (control points), meters Max deviation dZ (coctrol points), meters RMS dXY (control points), meters RMS dZ (control points), meters Max deviation dXY (check points), meters Max deviation dZ (check points), meters RMS dXY (check points), meters RMS dZ (check points), meters 1A A B C D F E G H A A B C D F E G H Data processing Input data level 1 Accuracy of DSM Input data level 2 Stereopair, Number of check points MAX deviation, meters RMS, meters A C D H Stereopair, Number of check points MAX deviation, meters RMS, meters D LV 2 Thank you for attention!