بررسی اطلاعات Raster و Vector در ساخت تصاویر کارتوگرافی دیجیتال

سیستم های خروجی اطلاعات در کارتوگرافی اتوماتیک

در کارتوگرافی اتوماتیک، سیستم ­های خروجی اطلاعات بخش بسیار با اهمیتی را تشکیل می­ دهند. تکنولوژی و روش­ های خروجی اطلاعات، روند تکاملی خود را همواره متناسب با اهداف تهیه نقشه طی می­ نمایند و نقش خروجی اطلاعات به صورتی است که برعکس کارتوگرافی کلاسیک، نه تنها انتهای فرآیند تهیه نقشه نبوده بلکه سرآغازی برکاربردهای متنوع نقشه ­های رقومی و تأکیدی بر حضور علمی فنی مهندسین نقشه ­­برداری و کارتوگراف در...

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...

A Vector-like Architecture for Raster Graphics

Raster graphics, while good at achieving realistic and cost-effective image generation, lacks useful (e.g. high-level) and fast (e.g. almost real-time) interac­ tion facilities. One may try to speed up the entire classical image generation pipeline using much processing power but this would clearly lessen the advan­ tages of raster workstations as popular, relatively inexpensive devices. This p...

Address Base Creation Using Raster/vector Integration

The city of Belo Horizonte, Brazil, which has a population of slightly over 2 million, has formed a vectorial database for GIS using digital restitution of air photos. Even though this database is very detailed and precise, it contains only the representation of physical objects. The next step taken was the creation of an address database, by placing symbols over the vectorial information, and ...

Automatic raster-vector conversion of topographic maps

Raster-to-Vector: Revisiting Floorplan Transformation Supplementary material

Figures 1, 2, 3, and 4 show more experimental results on randomly sampled floorplan images in our dataset, demonstrating their challenges and varying styles. Figures 5 and 6 show our results on other image sources, in particular, Rent3D dataset [2] and Google Image Search, respectively. Fig. 7 shows some typical failure cases. Lastly, the main paper has provided quantitative evaluations. We her...