منابع مشابه
Extracting Road Vector Data from Raster Maps
Raster maps are an important source of road information. Because of the overlapping map features (e.g., roads and text labels) and the varying image quality, extracting road vector data from raster maps usually requires significant user input to achieve accurate results. In this paper, we present an accurate road vectorization technique that minimizes user input by combining our previous work o...
متن کاملComputing Raster Images from Grid Picture Grammars
While a 2-dimensional grid picture grammar may generate pictures (deened as subsets of the unit square) with arbitrarily small details, only a nite number of them can be made visible as raster images for any given raster. We present an algorithm based on bottom-up tree automata which computes the set of all raster images of the pictures generated by a given grid picture grammar.
متن کاملExtracting rich information from images.
Now that automated image-acquisition instruments (high-throughput microscopes) are commercially available and becoming more widespread, hundreds of thousands of cellular images are routinely generated in a matter of days. Each cellular image generated in a high-throughput screening experiment contains a tremendous amount of information; in fact, the name high-content screening (HCS) refers to t...
متن کاملExtracting Roads from Ikonos Images
Remote sensing has been used mostly to produce analyses on different aspects and phenomena concerning territory. The approach is not different from the one employed when analysing maps in the sense that analysis depends on the nature of data, maps and satellite images being two different sources of spatial data. Obviously, analysis based on cartographic data is different from the one based on s...
متن کاملExtracting Plane Graphs from Images
In order to use structural techniques from graph-based pattern recognition, a first necessary step consists in extracting a graph in an automatic way from an image. We propose to extract plane graphs, because of algorithmic properties these graphs have for isomorphism related problems. We also consider the problem of extracting semantically well-founded graphs as a compression issue: we get sim...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computers & Graphics
سال: 1988
ISSN: 0097-8493
DOI: 10.1016/0097-8493(88)90011-8