Image correction method and apparatus for navigation system with portable navigation unit
First Claim
1. A navigation system for displaying a map image for guiding a user to a destination, comprising:
- a first display provided on a removable navigational unit;
a second display provided on an in-vehicle portion within a vehicle;
a navigation interface for electrically connecting the removable navigation unit with the in-vehicle portion; and
means for generating a first image for projection on the first display and a second image for projection on the second display;
wherein the image generating means creates corrected image data for a selected image element for projection on the second display such that the image of the selected element has a substantially common aspect ratio on each of the first display and the second display.
2 Assignments
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Accused Products
Abstract
The image correction method and system for navigation device with portable navigation unit converts an image based on projection to a first display into a suitable image on a second display such that the area of the second display is used economically and efficiently while maintaining some elements of the image in substantially common aspect ratio between the images on the first display and on the second display. The image correction method determines the ratio of the second display, determines if image correction is required, and checks a correction table and performs image correction according to correction rules to generate the corrected image for projecting on the second display.
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Citations
18 Claims
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1. A navigation system for displaying a map image for guiding a user to a destination, comprising:
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a first display provided on a removable navigational unit;
a second display provided on an in-vehicle portion within a vehicle;
a navigation interface for electrically connecting the removable navigation unit with the in-vehicle portion; and
means for generating a first image for projection on the first display and a second image for projection on the second display;
wherein the image generating means creates corrected image data for a selected image element for projection on the second display such that the image of the selected element has a substantially common aspect ratio on each of the first display and the second display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for generating a corrected image for a navigation system, comprising the following steps of:
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retrieving image data for a first display;
determining a difference between an aspect ratio of first display and an aspect ratio of a second display;
checking a correction table to extract corrected image data for a selected image element; and
generating the corrected image data extracted from the correction table for displaying a corrected image of the selected image element on the second display. - View Dependent Claims (15, 16, 17, 18)
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Specification