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High-speed real-time jpeg2000 decoding method

A decoding method and high-speed technology, applied in the field of image processing, can solve the problems of complex processing process, large amount of calculation, high power consumption, etc., and achieve the effect of simple operation process, high-speed parallel decoding and low power consumption

Active Publication Date: 2018-08-10
XIDIAN UNIV
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  • Application Information

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Problems solved by technology

The shortcomings of this method are that the processing process is complex, the amount of calculation is relatively large, the efficiency is low, and the power consumption is high.

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  • High-speed real-time jpeg2000 decoding method

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Embodiment Construction

[0026] refer to figure 1 , the multi-core high-speed decoding platform diagram used in the present invention, the platform is divided into upper and lower layers, wherein figure 1 (a) is the upper floor, figure 1 (b) is the lower layer.

[0027] The upper layer has a fast multi-processing board 1 and a high-speed storage board 3, and the upper high-speed storage board 3 is mounted with two solid-state hard disks SSD1 and SSD2, which are used to store the decoded data of the processor in the fast multi-processing board 1. The storage board 3 communicates with the fast multi-processing board 1 through four-way bus and interface at high speed; the upper fast multi-processing board 1 is provided with two processors CPU1 and CPU2, and two memory sticks SDRAM1 and SDRAM2.

[0028] The lower layer has a fast multi-processing board 2 and a high-speed storage board 4, and the lower high-speed storage board 4 is mounted with two solid-state hard drives SSD3 and SSD4, which are used to...

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Abstract

The invention discloses a high-speed real-time JPEG2000 decoding method which is mainly for solving the problems of complex processing process, low degree of parallelism, low decoding efficiency, high delay and high power consumption of the prior art. According to the technical scheme, the high-speed real-time JPEG2000 decoding method comprises the steps of caching external data code streams to a decoding chain table and transmitting chain table in an appointed memory through a 10-gigabit Ethernet interface by utilizing a multinuclear high-speed decoding platform; and by a processor, transmitting image frame data in the decoding chain table into different kernels for parallel decoding, and meanwhile transmitting image frame data packets in the transmitting chain table to kernels of other processors for parallel decoding; and storing decoded image data in a corresponding solid state disk. The high-speed real-time JPEG2000 decoding method has the advantages of simple processing process, relatively high degree of parallelism, and high parallel decoding efficiency, and can be used for compression decoding of images in other formats.

Description

technical field [0001] The invention relates to the technical field of image processing, and further relates to a JPEG2000 decoding method, which can be used for image compression decoding in other formats. Background technique [0002] Image processing has always been an important research direction in the field of signal and information processing. Among the various application fields of computers, image processing is the most active. With the continuous updating of science and technology, the image field has also made great progress, especially in terms of image processing accuracy and complexity, which have risen to a new level compared with the previous ones. However, the large amount of data brought along with the advancement of image processing technology has put a lot of pressure on the processor. Therefore, a major problem facing image processing today is how to effectively improve image data while ensuring accuracy. processing rate. [0003] It is an inevitable ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/42H04N19/423H04N19/436
Inventor 张静张哲熙李云松牛高阳
Owner XIDIAN UNIV