High-order singular value decomposition (HOSVD) algorithm based video compression system and method

A video compression and algorithm technology, applied in digital video signal modification, electrical components, image communication, etc., can solve problems such as the lack of effective methods for finding abnormal points

Inactive Publication Date: 2016-02-24
SUZHOU UNIV OF SCI & TECH
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Problems solved by technology

[0016] 3. AVS technology lacks an effective method for finding abnormal points, and the tensor decomposition method marks abnormal nodes (frames) in real time, which is convenient for searching and early warning;

Method used

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  • High-order singular value decomposition (HOSVD) algorithm based video compression system and method

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Embodiment Construction

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] Figure 1(a) is a 3D face image; (b) is an image sequence generated by Gabor filtering; and (c) is a video shot with a 3D effect brain structure map; they are in order of 3rd order, 3rd order and 4th order tensor save;

[0051] The following formula shows the tensor HOSVD decomposition principle:

[0052]

[0053] Among them, A is the N-order tensor, and S on the right is the core tensor (generally sparse), Represents an orthogonal matrix (projection) acting on the i-th dimension of A.

[0054] figure 2 It is a kind of video compression system and method based on HOSVD algorithm, and this video compression system comprises: camera equipment and corresponding sensor, described camera equipment and corresponding sensor are respectively connected with CPLD processor and FIFO memory, and described CPLD processor and FIFO me...

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Abstract

The invention relates to a high-order singular value decomposition (HOSVD) algorithm based video compression system and method. The video compression system comprises a camera device and a corresponding sensor. The camera device and the corresponding sensor are respectively connected with a complex programmable logic device (CPLD) processor and a first in first out (FIFO) memory. The CPLD processor and the FIFO memory are connected with a digital signal processor (DSP). The CPLD processor is connected with the FIFO memory and an audio video standard (AVS) coder separately. The AVS coder is connected with a read only memory (ROM) video memory. According to a tensor decomposition theory, hardware and software are combined, so that time domain and spatial domain redundant information is compressed, data storage capacity is compressed furthest, and effective storage of color videos and minimum information loss are realized.

Description

technical field [0001] The invention relates to the technical field of surveillance video compression, in particular to a video compression system and method based on the HOSVD algorithm. Background technique [0002] In some public places such as residential areas, banks, airport waiting rooms, shopping centers, traffic intersections, office buildings, campuses and residential areas, monitoring equipment has become very popular, which provides protection for people's lives, property and public safety. At the same time, it also increases the management burden and economic burden for the relevant units: 24 hours a day, more than 360 days a year, monitoring video stream data, adds a lot of costs to the monitoring unit for manual management, equipment maintenance, data storage and data processing, etc. Units bring a huge financial burden. In order to save money, some units deliberately shut down the monitoring equipment, or leave the monitoring equipment idle for a long time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/122H04N19/13H04N19/159H04N19/625H04N19/82
Inventor 徐常青付文豪付文杰孙慧婷
Owner SUZHOU UNIV OF SCI & TECH
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