magnetic azimuth
2.In order to adapt to the observational condition of magnetic declination and inclination with the high resolution and precision magnetograph,the azimuths among 7 measurement platforms and 4 azimuth marks in reconstructed Jinghai station,Seismological Bereau of Tianjing,are precisely measured by using classical astro?geodetic method,and 38 parameters with average error ±1.2″are gained. After the measurements, 7 sets of instrument can be used at same time in all?weather. ?
3.The papersummarizes the image acquirement method with axial panoramic borehole TV (ATV)device. Besides, this paper puts on researchment on depth correction, magnetic declinationand color cast adjustment,and introduces the technology of seamless stitching method andscanline algorithm which adopted to extract lines of pixels from original video tapes,compass azimuth and depth numeric character identification, attitude (orientation, strike,aperture)calculationinDPBCS.
