Sascha BrawerFollow


In distributed Geographic Information Systems such as web maps, it is common to split large images into raster image tiles. Traditionally, clients request auxiliary data for an image region (such as a pixel position on which the user has clicked, tapped or hovered) by issuing a separate network request for additional information. However, such network round-trips slow down the user experience, particularly on slow or unreliable connections such as mobile networks. What is disclosed is a system and method for encoding auxiliary data into raster images so that remote clients can retrieve small amounts of encoded data without issuing separate network requests.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.