JPEG 2000 image coding and transmitting method and system based on embedded platform

A technology of image coding and transmission method, which is applied in the direction of transmission system, image coding, image data processing, etc., to achieve the effect of improving coding rate and efficiency, convenient use and low price

Inactive Publication Date: 2007-05-02
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, in the application environment that needs to compress images in real time, efficient and fast image encoding components are required, and the traditional software compression method cannot meet the requirements, so a method that uses hardware circuits to directly complete image encoding is required

Method used

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  • JPEG 2000 image coding and transmitting method and system based on embedded platform
  • JPEG 2000 image coding and transmitting method and system based on embedded platform
  • JPEG 2000 image coding and transmitting method and system based on embedded platform

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the drawings and embodiments. A preferred embodiment of the present invention is shown in FIG. 1. This example is a JPEG2000 image encoding and transmission system based on an embedded platform, which is composed of an image acquisition component 1, an image encoding component 2, a control processing component 3, and a power supply component 4. The image acquisition component 1 is connected to the image coding component 2, the image coding component 2 is connected to the control processing component 3, and the power supply component 4 is connected to the components 1, 2, and 3 respectively. The image acquisition component 1 is connected to the camera, and the control processing component 3 is connected to the external Ethernet 6.

[0026] The above-mentioned image acquisition component 1 includes a coaxial video acquisition connector 7 and an image acquisition chip 8. The chip model is SAA7113H of Phi...

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Abstract

A transmission method includes receiving analog signal from shooting head by image collection component and carrying out A / D conversion, using hardware to carry out JPEG 2000 format coding for converted image to obtain JPEG format image code data generated by image coding component from control processing unit, packing the data according to TCP / IP protocol and retransmitting the packed data to Ethernet through standard Ethernet interface.

Description

Technical field [0001] The invention relates to a method and system for encoding and transmitting JPEG2000 images, in particular to a method and system for encoding and transmitting images on a device based on EP1C12Q240C8 and S3C4510B embedded platforms. Background technique [0002] The JPEG2000 standard is a high-quality still image coding standard that can provide image coding and decoding algorithms with different compression qualities from lossless to lossy. With the development of multimedia and network technology, network image transmission has been widely used. [0003] Because the JPEG2000 coding standard compresses images with high quality and complex algorithms, the current traditional coding systems are implemented using PC-based computer platforms or high-end MCUs based on embedded operating systems. The equipment is huge and complex, with high cost, low operating speed and low execution efficiency. . With the civilianization and popularization of the application of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T9/00H04L29/06
Inventor 罗伟栋方勇黄素娟
Owner SHANGHAI UNIV
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