Digital zooming apparatus and method

• US 20070013792A1
• Filed: 06/15/2006
• Published: 01/18/2007
• Est. Priority Date: 07/13/2005
• Status: Active Grant

• Current Assignee: Quanta Computer
• Original Assignee: Quanta Computer
• Inventors: Lin, Chia-Hsien
• Granted Patent: US 7,643,071 B2
• Time in Patent Office: Days
• US Class Current: 348/240.200
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

This invention discloses a digital zooming apparatus for adjusting the size of a sensed image sensed by a sensor. The digital zooming apparatus includes an adjusting module, a first image-processing module, a storage module and a second image-processing module. The adjusting module connected to the sensor receives the sensed image and adjusts the sensed image according to a zooming factor to produce an adjusted image. The first image-processing module connected to the adjusting module processes the adjusted image according to a first predetermined condition and a second predetermined condition to produce a first image. The storage module connected to the first image-processing module stores the first image. The second image-processing module connected to the storage module receives the first image and processes the first image according to the second predetermined condition to produce a second image.

Claims

1. A digital zooming apparatus for adjusting the size of a sensed image sensed by a sensor, comprising:

an adjusting module connected to the sensor, the adjusting module receiving the sensed image and adjusting the sensed image according to a zooming factor to produce an adjusted image;

a first image-processing module connected to the adjusting module, the first image-processing module processing the adjusted image based on a first predetermined condition and a second predetermined condition to produce a first image;

a storage module connected to the first image-processing module and used for storing the first image; and

a second image-processing module connected to the storage module, the second image-processing module receiving the first image and processing the first image according to the second predetermined condition to produce a second image.

2. The digital zooming apparatus of claim 1, wherein the first predetermined condition is a maximum storage capacity of the storage module.

3. The digital zooming apparatus of claim 1, wherein the second predetermined condition is a preset size of the second image.

4. The digital zooming apparatus of claim 1, wherein the first image-processing module further comprises a comparing unit for comparing the first predetermined condition and the second predetermined condition, when the first predetermined condition is larger than or equal to the second predetermined condition, the first image-processing module processes the adjusted image according to the second predetermined condition to produce the first image, and when the first predetermined condition is smaller than the second predetermined condition, the first image-processing module processes the adjusted image according to the first predetermined condition to produce the first image.

5. The digital zooming apparatus of claim 1, said apparatus further comprising:

an input module connected to the first image-processing module and the second image-processing module, the input module being used for receiving the zooming factor and the second predetermined condition.

6. The digital zooming apparatus of claim 1, said apparatus further comprising:

a selecting module connected to the first image-processing module and the second image-processing module, a plurality of preset zooming factors and a plurality of preset conditions being previously stored in the selecting module, the selecting module providing the plurality of preset zooming factors for an user to select said zooming factor and providing the plurality of preset conditions for the user to select said second predetermined condition.

7. The digital zooming apparatus of claim 1, said apparatus further comprising:

an output module connected to the second image-processing module and being used for outputting the second image.

8. A digital zooming method for adjusting the size of a sensed image sensed by a sensor, comprising the steps of:

(a) receiving the sensed image and adjusting the sensed image according to a zooming factor to produce an adjusted image;

(b) processing the adjusted image based on a first predetermined condition and a second predetermined condition to produce a first image;

(c) storing the first image; and

(d) processing the first image according to the second predetermined condition to produce a second image.

9. The digital zooming method of claim 8, wherein the first predetermined condition is a maximum storage capacity of a storage module.

10. The digital zooming method of claim 8, wherein the second predetermined condition is a preset size of the second image.

11. The digital zooming method of claim 8, said method further comprising the step of:

selecting said zooming factor from a plurality of preset zooming factors and selecting said second predetermined condition from a plurality of preset conditions.

12. The digital zooming method of claim 8, wherein step (b) further comprises the step of:

(b1) comparing the first predetermined condition and the second predetermined condition;

(b2) when the first predetermined condition is larger than or equal to the second predetermined condition, processing the adjusted image according to the second predetermined condition to produce the first image; and

(b3) when the first predetermined condition is smaller than the second predetermined condition, processing the adjusted image according to the first predetermined condition to produce the first image.

13. The digital zooming method of claim 8, said method further comprising the step of:

inputting the zooming factor and the second predetermined condition.

14. The digital zooming method of claim 8, said method further comprising the step of:

outputting the second image.