Truck Detection from Aerial Photographs

3D Model Generation for Cities Using Aerial Photographs and Ground Level Laser Scans

In this paper we describe techniques for 3D textured model construction of urban areas using acquisition devices such as intensity cameras, as well as 2D laser scanner. Our experimental set up consists of a truck equipped with one camera and two fast, inexpensive 2D laser scanners, traveling on city streets under normal traffic conditions. The horizontal laser scans are used to determine the ap...

Change detection in coral reef communities using Ikonos satellite sensor imagery and historic aerial photographs

For decades, aerial photographs have been the only source of very high spatial resolution data for coral reef researchers. With the launch of the Ikonos satellite in 1999, imagery with a 4 m spatial resolution in multispectral mode can now be combined with historical aerial photographs for change detection. We demonstrate this potential by combining two aerial photographs (1981 and 1992) and an...

مقایسه کارایی عکس های هوایی و باندهای پانکروماتیک +ETM و IRS-P6 در تعیین مرفولوژی تپه های ماسه ای

In this survey, the performance of aerial photographs and satellite imagery in determining sand dunes morphology was studied in the Erg of Gavkhouni international wetland located in the southeast part of Isfahan province. Aerial photographs (scale:1:20000) and the panchromatic bands of ETM+ and IRS-P6 sensor were acquired and geometrically corrected using topographic map of the region (scale:1:...

The Application of Digital Techniques to the Detection and Extraction of Archaeological Earthwork Monuments from Aerial Photographs

Aerial photographs are a valuable resource for archaeological assessment, but their accurate interpretation is extremely labour intensive. The application of digital image processing techniques to the assessment process has, to-date, primarily focused on providing automatic measurement and correction of distortions inherent in oblique images. However, the monument discovery and mapping process ...

Automatic Detection and Classification of Infestations of Crop Insect Pests and Diseases from Infrared Aerial Color Photographs