| Autor: |
Bockstein, I., Chochia, P., Kronrod, M. |
| Zdroj: |
Earth, Moon & Planets; 1988, Vol. 43 Issue 3, p233-259, 27p |
| Abstrakt: |
The methodology and the results of Venus northern hemisphere (approximately to 30°N) map synthesis are described. The synthesis was carried out in the Institute for Information Transmission Problems of the USSR Academy of Sciences using the data of strip survey of Venus surface received from VENERA-15 and VENERA-16 space stations. Interactive image processing system of the institute was used for this purpose. The problem of map synthesis was divided into four stages- pre-processing of about 300 strips images available, geometrical transformation of the strips and the synthesis of so-called sectors from 10-16 strips, joining all the 19 sectors into 34 map sheets and filling the polar area in the middle of the central sheet. The main mode of work in the course of map synthesis was the interaction of the operator with the system. This enabled to achieve high accuracy of strips referencing, indistinguishability of the borders between strips and sectors, the absence of false objects, and, as a result, high visual quality of the map. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink