Display method and apparatus for navigation system for performing cluster search of objects
First Claim
1. A display method for a navigation system for searching and displaying objects clustered within a search area, comprising the following steps of:
- defining a size and shape of a search template for searching objects in the search area;
scanning the search template on the search area by displacing its position by a predetermined increment;
counting and recording a number of objects on the search area within the search template at every increment of said displacement position, thereby creating an object distribution matrix;
applying a cluster search algorithm to the object distribution matrix, thereby detecting distribution of clusters of the objects in the search area; and
displaying the clusters of the objects in the search area by a predetermined display method.
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Abstract
A method and apparatus for a navigation system conducts a data search for finding relative density of objects such as points of interest in a specified area and displays the result of the search in various manners. The display method includes the steps of: defining a size and shape of a search template; scanning the search template on the search area by displacing its position by a predetermined increment; counting and recording a number of objects on the search area within the search template at every increment of the displacement position, thereby creating an object distribution matrix; applying a cluster search algorithm to the object distribution matrix, thereby detecting distribution of clusters of the objects; and displaying the clusters of the objects in the search area.
86 Citations
30 Claims
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1. A display method for a navigation system for searching and displaying objects clustered within a search area, comprising the following steps of:
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defining a size and shape of a search template for searching objects in the search area;
scanning the search template on the search area by displacing its position by a predetermined increment;
counting and recording a number of objects on the search area within the search template at every increment of said displacement position, thereby creating an object distribution matrix;
applying a cluster search algorithm to the object distribution matrix, thereby detecting distribution of clusters of the objects in the search area; and
displaying the clusters of the objects in the search area by a predetermined display method. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A display apparatus for a navigation system for searching and displaying objects clustered within a search area, comprising:
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means for defining a size and shape of a search template for searching objects in the search area;
means for scanning the search template on the search area by displacing its position by a predetermined increment;
means for counting and recording a number of objects on the search area within the search template at every increment of said displacement position, thereby creating an object distribution matrix;
means for applying a cluster search algorithm to the object distribution matrix, thereby detecting distribution of clusters of the objects in the search area; and
means for displaying the clusters of the objects in the search area by a predetermined display method. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification