Image device having camera and image perspective correction and possibly rotation and staggering correction

• US 20030048271A1
• Filed: 09/06/2002
• Published: 03/13/2003
• Est. Priority Date: 09/07/2001
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Mimnagh-Kelleher, Gillian Antoinette, Liess, Martin Dieter
• Application Number:
  US10/236,182
• Publication Number:
  US 20030048271A1
• Time in Patent Office: Days
• US Class Current: 345/428
• CPC Class Codes: G06T 3/60 Rotation of whole images or parts thereof
• CPC Class Codes: H04N 1/3878 Skew detection or correction

Abstract

An image device (1), comprises image means (2) for taking an initial image (I) including graphics and/or text, and an image correcting means (4) coupled to the image means (2) for correcting the image taken. The image means (2) are camera means (2), and the image correcting means (4) are arranged for performing perspective corrections by effecting image sizing on the image taken. This way perspective errors emanating from the taking of a flat image can be corrected for by means of appropriate software. Implementation of the feature in for example a mobile GSM telephone already including a microprocessor is therefore advantageous allowing high quality fax communication.

Claims

1. An image device (1), comprising an image means (2) for taking an initial image (I) including graphics and/or text, and an image correcting means (4) coupled to the image means (2) for correcting the image taken, characterized in that the image means (2) are camera means (2), and that the image correcting means (4) are arranged for performing perspective corrections by effecting image sizing on the image taken.

2. The image device (1) according to claim 1, characterized in that the image correcting means (4) are additionally arranged for performing rotation and/or staggering corrections.

3. The image device (1) according to claim 1 or 2, characterized in that the image correcting means (4) are arranged as alignment means for effecting left and/or right edge alignment along respective edges of the image taken.

4. The image device (1) according to one of the claims 1-3, characterized in that the image correcting means (4) are arranged as image contracting and/or image stretching means (4), in particular image line and/or image column contracting and stretching means respectively.

5. A data processing device (D), such as an organizer or a communication device, for example a telephone, in particular a mobile telephone, which data processing device (D) is provided with an image device according to one of the claims 1-4.

9. An image, including graphics data and/or text data processed according to the method according to one of the claims 6-8, in particular by means of the device (1;

D) according to one of the claims 1-5.

6. A method for processing an image taken, the image comprising image lines and image columns, which method is characterized by one or more of the following steps of:

aligning the image lines;

sizing the image lines;

aligning the image columns;

sizing the image columns;

sizing the image lines and image columns to form a desired processed image format.

7. The method according to claim 6, characterized in that the sizing is stretching and/or contracting of the image taken.

8. The method according to claim 7, characterized in that the amount of stretching of the image lines and/or image columns is a linear function of the length and position of a first and a last complete image line and/or image column respectively.