Moving image system and method for coded mobile communication terminal

A mobile communication terminal and moving image technology, applied in the field of moving image coding, can solve problems such as being unsuitable for real-time services, difficult moving image coding, and complicated inter-frame coding operations.

Inactive Publication Date: 2008-07-23
MULTIVIA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Since inter-frame coding obtains motion vectors by performing motion estimation on each macroblock, and in addition, DCT and quantization processing are performed to obtain information about whether motion occurs in each macroblock, the operations required for inter-frame coding are complex.
Therefore, it is very difficult to embody the moving image coding of mobile communication terminals in software.
Also, since Huffman coding is used as entropy coding, it is not suitable for real-time service

Method used

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  • Moving image system and method for coded mobile communication terminal
  • Moving image system and method for coded mobile communication terminal

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Embodiment Construction

[0035] Hereinafter, preferred embodiments of the present invention are described with reference to the accompanying drawings. In the following description of the present invention, a detailed description of well-known functions and constructions cited herein will be omitted in view that it may make the subject matter of the present invention rather unclear.

[0036] The moving image encoding system according to the present invention is embodied in software rather than a hardware chip. As shown in Figure 2, the system according to one embodiment of the present invention includes: a video signal conversion unit 10, which is used to convert the input RGB image into a moving image compression target signal (YUV 420) with MPEG-4 format, and the intra-frame An encoding unit 50 and an inter encoding unit 60 .

[0037] The intra encoding section 50 divides the moving image compression target signal (YUV 420 ) output from the video signal conversion unit 10 into U and V components, an...

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Abstract

The present invention relates to systems and methods of encoding moving pictures for mobile communication terminals. The present invention includes: the intra-coding process that encodes U and V components of the moving picture compression object signal by calculating an average value in a 4*4 pixel unit, and for encoding Y component of the moving picture compression object signal by discrete cosine transforming, quantizing and Golomb-Rice coding the Y component in a 8*8 pixel block unit; and the inter-coding process that estimates whether motions happened in a 8*8 pixel block unit, classifies the blocks into a motion block and a non-motion block, stores the motion block and the non-motion block separately, encodes and outputs information about whether motions happened as texture map information, and performs an estimation of an infra mode and an inter mode for the motion block at the same time.

Description

technical field [0001] The present invention relates to moving image coding, and more particularly, the present invention relates to a system and method for encoding moving images of mobile communication terminals, which can minimize the number of processes and operations when encoding moving images, and pass It is embodied by software, so as to adapt to the mobile communication terminal. Background technique [0002] Currently, techniques for processing moving images have been applied in various fields. A video on demand (VOD) service, such as a movie service on the Internet, is a representative example of this technology. [0003] International standards in such diverse fields for processing moving images have been defined. As a typical international standard, Moving Picture Experts Group-1 (MPEG-1) is used as a compression method for video compact disc (CD), and MPEG-2 is applicable and used as a compression method for high-definition digital television broadcasting or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26G06T9/00H01S5/223H01S5/00H01S5/12H01S5/22H01S5/323H01S5/343
CPCH04N19/00278H04N7/26132H04N19/00145H04N19/00042H04N7/26372H04N7/26122H04N7/26292H04N19/00139H04N19/00121H04N19/00036H04N7/3022H01S5/12B82Y20/00H01S5/2202H04N19/00315H04N7/26313H01S5/34366H04N7/26244H04N19/00775H04N19/00557H04N19/00545H04N7/26026H04N7/26037H04N19/00078H04N7/26069H04N19/176H04N19/46H04N19/13H04N19/60H04N19/11H04N19/109H04N19/12H04N19/136H04N19/137H04N19/186H04N19/467H04L1/0075
Inventor 李昌浩
Owner MULTIVIA
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