An algorithm for displaying a class of space-filling curves
Software—Practice & Experience
Efficient and effective querying by image content
Journal of Intelligent Information Systems - Special issue: advances in visual information management systems
Using MPI: portable parallel programming with the message-passing interface
Using MPI: portable parallel programming with the message-passing interface
Fast parallel similarity search in multimedia databases
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Microsoft TerraServer: a spatial data warehouse
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Computer Vision
Query by Visual Example - Content based Image Retrieval
EDBT '92 Proceedings of the 3rd International Conference on Extending Database Technology: Advances in Database Technology
Hilbert R-tree: An Improved R-tree using Fractals
VLDB '94 Proceedings of the 20th International Conference on Very Large Data Bases
Similarity Retrieval on Pictorial Databases Based upon Module Operation
Proceedings of the 3rd International Conference on Database Systems for Advanced Applications (DASFAA)
An Approach to Image Retrieval for Image Databases
DDEXA '93 Proceedings of the 4th International Conference on Database and Expert Systems Applications
Shape representation and description using the Hilbert curve
Pattern Recognition Letters
Improving the efficiency of subset queries on raster images
Proceedings of the ACM SIGSPATIAL Second International Workshop on High Performance and Distributed Geographic Information Systems
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In this paper, we propose a method to accelerate the speed of subset query on uncompressed images. First, we change the method to store images: the pixels of images are stored on the disk in the Hilbert order instead of row-wise order that is used in traditional methods. After studying the properties of the Hilbert curve, we give a new algorithm which greatly reduces the number of data segments in subset query range. Although, we have to retrieve more data than necessary, because the speed of sequential readings is much faster than the speed of random access readings, it takes about 10% less elapsed time in our algorithm than in the traditional algorithms to execute the subset queries. In some systems, the saving is as much as 90%.