Method for transforming video data by wavelet transform signal processing

• US 20030103678A1
• Filed: 02/07/2002
• Published: 06/05/2003
• Est. Priority Date: 11/30/2001
• Status: Active Grant

• Current Assignee: Institute For Information Industry
• Original Assignee: Institute For Information Industry
• Inventors: Hsuan, Chih-Lin
• Granted Patent: US 7,039,248 B2
• Time in Patent Office: Days
• US Class Current: 382/240
• CPC Class Codes: G06T 5/50 using two or more images, e.g. averaging or subtraction
• CPC Class Codes: H04N 19/17 the unit being an image region, e.g. an object
• CPC Class Codes: H04N 19/63 using sub-band based transform, e.g. wavelets

Abstract

A method to transform video data having an interest region by wavelet transform signal processing. First, the video data is transformed to high frequency image data and low frequency image data. Then, first image data recording first information responding to the interest region of the video data and second image data recording second information responding to the interest region of the video data from the high frequency image data are received. The first image data and the low frequency image data are combined to form interest region data. The interest region data and the second image data are combined by bit plane coding to generate display data. Finally, a display device displays the display data.

Claims

1. A method for transforming video data comprising an interest region by wavelet transform signal processing, comprising the following steps:

transforming the video data to high frequency image data and low frequency image data;

getting first image data recording first information responding to the interest region of the video data and second image data recording second information responding to the interest region of the video data from the high frequency image data;

combining the first image data and the low frequency image data to form interest region data;

combining the interest region data and the second image data by bit plane coding to generate display data; and

displaying the display data with a display device.

2. The method as claimed in claim 1, wherein the high frequency image data and the low frequency image data have predetermined frequency bands.

3. The method as claimed in claim 2, further comprising the step of compressing the display data.

4. The method as claimed in claim 3, wherein the compression form of the display data is JPEG2000.