Global encoding method and system for urban traffic surveillance video
A monitoring video and global encoding technology, applied in the field of urban traffic monitoring video encoding, can solve the problem of urban monitoring data redundancy
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[0128] The specific implementation of the three-layer knowledge dictionary construction of this step is as follows:
[0129] (1) The first layer of knowledge dictionary construction, that is, the construction of the common visual texture information knowledge dictionary of all types of global moving vehicles.
[0130] The common visual texture information knowledge dictionary of all types of moving vehicles is constructed by sparse coding, and the cost function is as follows:
[0131]
[0132] Among them, D 1 Represents the first layer of knowledge dictionary; C represents the number of types of global moving vehicles, c represents the type number of global moving vehicles; y c Represents the common visual texture information of global moving vehicles, that is, the texture information of all types of global moving vehicles; a 1 Indicates the coding coefficient; τ is the balance factor, which is set according to the actual situation and experience, the larger the τ, the sp...
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