Abstract:

Focusing on the production method for mapping a high-resolution digital orthophoto and the problems that often occur in this production process, the key technology of producing high-resolution digital orthophoto maps from the practical perspective is proposed and the technical challenges and corresponding solutions are summarized using the 9600 km² 0.2 m resolution DMCⅢ digital aerial image data of Binzhou area and cluster image processing systems (such as Inpho, GEOWAY CIPS, and Pixel Factory) to produce 1:2000 digital orthophoto maps. Constructive suggestions on the acquisition and processing of high-resolution aerial images are carefully suggested. The proposals will help in improving the quality and efficiency of future projects in this field and will contribute to the fundamental surveying and mapping, which will benefit the economic development of China.

Key words: digital orthophoto map, 0.2 m resolution, digital elevation model, production technology, quality control