Coding method of dynamic image

A coding method and image technology, applied in the field of moving image coding, can solve problems such as inability to clear errors

Inactive Publication Date: 2006-03-29
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the method of using the error recovery method and the error concealment method alone as described above has a disadvantage that all errors that occur cannot be eliminated.

Method used

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  • Coding method of dynamic image
  • Coding method of dynamic image
  • Coding method of dynamic image

Examples

Experimental program
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Embodiment Construction

[0026] The examples in the present invention will be described in detail below with reference to the accompanying drawings.

[0027] This invention proposes a moving image encoding method that hides and transmits important ROI information to the user through data hiding during the encoding process, and handles error concealment more effectively when an error occurs in the decoder.

[0028] First, data hiding performed in the present invention will be described.

[0029] The so-called data hiding is a technology that hides the required information in digital multimedia in advance, and extracts the above-mentioned hidden information when necessary. Data hiding techniques can be roughly divided into those that require original technology and those that do not require original technology in the process of extracting hidden information. In this invention, a method that does not require original data is adopted.

[0030] Data hiding in the present invention is performed during vid...

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Abstract

This invention discloses an encoding method for motion images including: 1, extracting information of the care zone against the images input by an encoder 2, transmitting the extracted core zone information by hiding data when encoding, 3, extracting the care zone information from a decoder, 4, hiding errors by the care zone information. This invention utilizes the target extraction technology to extract care zones from the input images when extracting care zone information and extracting the encoding state information of the zones when encoding the input images. The encode information of the care zones includes positions, motion vectors and encoding kinds and hidden data process should be done to their title information.

Description

【Technical field】 [0001] This invention relates to a moving image coding method, especially a moving image coding method that effectively conceals errors generated in the decoding process through data hiding in the encoding process when multimedia images are transmitted through the network. 【Background technique】 [0002] Recently, with the development of ultra-high-speed mobile communication technologies such as IMT2000, not only audio and still images but also multimedia services such as moving images have been widely used. Examples of video multimedia services include one-way services such as VOD and two-way services such as video calls. Video communication requires a larger amount of data than voice communication, so video compression is basically required. [0003] The general video encoding process is as follows: figure 1 As shown, through motion compensation (motion compensation) and motion prediction (motion estimation), a motion vector (motion vector) is extracted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32H04N7/16H04N19/895
Inventor 柳在信
Owner LG ELECTRONIC (HUIZHOU) CO LTD
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