A wide range of satellite methods is applied now in seismology. The first applications of satellite data for earthquake exploration were initiated in the ‘70s, when active faults were mapped on satellite images. It was a pure and simple extrapolation of airphoto geological interpretation methods into space. The modern embodiment of this method is alignment analysis. Time series of alignments on...

dard 14496) defines a multimedia system for interoperable communication of complex scenes containing audio, video, synthetic audio, and graphics material. In part 1 of this two-part article we provide a comprehensive overview of the technical elements of the Moving Pictures Expert Group’s MPEG-4 multimedia system specification. In part 2 (in the next issue) we describe an application scenario b...

Pictorial information processing relies heavily on the establishment of an efficient pictorial database system. Presentday database management systems are designed primarily for efficient storage, retrieval and manipulation of alphanumeric data. U ntiI very recently, little attention has been paid to the storage, retrieval and manipulation of non-alphanumeric information such as digitized image...

OVERVIEW: With the spread of digital satellite broadcasting and Internetbased electronic-information services, digital content (information in digital form) is expanding rapidly in society and individual households in the form of text, still pictures, motion pictures, sound, etc. In such a digital-multimedia era, the archiving of this huge volume of data has become a major issue. Against this b...

Since the beginning of 2012, the first Pleiades-HR satellite of the program conducted by the French National Space Agency, CNES, delivers 20 km wide color scenes with a 70 cm ground sampling distance. A second satellite should be launched in 2013 which will achieve an almost world-wide coverage with a revisit interval of 24h. The assessment of the image quality and the calibration operation hav...

This paper presents a visual language called Miro for specifying and restricting operating system security configurations. A Miro picture specifies exactly what rights users have on files. A Miro constraint, also stated visually, restricts the set of Miro pictures which are considered legal. Such constraints on pictures give an exact specification of security policies and a practical method for...

Satellite pictures and in-situ observations indicate strong phytoplankton blooms including harmful algae blooms (HABs) during southwest (SW) summer monsoon in the Vietnamese upwelling area. In this period, nutrients are provided by coastal upwelling and by the very high river runoff from the Mekong River. During SW monsoon, in general two circulation patterns exist which allow the prediction of...

We present a new method for Perceptual Grouping of pixels into roads after crest lines detection in satellite pictures. First the visual properties expected from the groupings are modelled as a quality function similar to active contour functions. They involve curvature, grey levels and co-circularity. This function is computed recursively and optimized from a local to global level with an algo...

The maintenance of large raster images under spatial operations is still a major performance bottleneck. For reasons of storage space, images in a collection, such as satellite pictures in geographic information systems, are maintained in compressed form. Instead of performing a spatially selective operation on an image by first decompressing the compressed version, we propose to perform querie...

This paper shows how the adoption of a Dynamic Rate Shaping (DRS) to variable bit rate (VBR) MPEG-2 (Motion Pictures Expert Group-2) coded video data, in addition to different levels of data protection, adds more flexibility in the way a video data stream can be sent over a faded satellite channel. DRS allows the satellite bandwidth required to be continuously trimmed, within a certain range. A...