Fractional order differential filter for digital image

A fractional differentiation, digital image technology, applied in image communication, color TV parts, TV system parts and other directions, can solve problems such as reducing processing efficiency, consuming computing resources, and failing to meet computing real-time requirements.

Inactive Publication Date: 2009-09-02
成都三足鸟科技有限公司
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Problems solved by technology

This kind of comprehensive application is actually equivalent to the information fusion of the processing results of various traditional texture analysis schemes, but this greatly consumes computing resources, reduces processing efficiency, and cannot meet the real-time requirements of computing.
[0005] For nearly three hundred years, fractional calculus has become an important branch in the field of mathematical analysis, but it is still little known to most scholars in engineering and technology

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  • Fractional order differential filter for digital image
  • Fractional order differential filter for digital image
  • Fractional order differential filter for digital image

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Embodiment Construction

[0043] See figure 1 and Figure 12 , according to the cascaded circuit structure of the digital image fractional differential filter of the present invention, its row memory group 9, phase-lock / shift circuit group 10, and fractional differential mask volume as described in detail in the content of the invention The specific circuit structure and circuit parameters of the product circuit 11 and the maximum value comparator 12 can be used to construct the specific circuit of the fractional differential filter of the digital image. In addition, in the process of specific implementation, it should also be noted that: (1) the order v of the fractional differential mask convolution circuit 11 can be a fraction or a rational decimal value between 0 and 1. According to different requirements of engineering precision, the order v The second v is divided into three types of floating-point data, and the calculation data types of the first arithmetic unit circuit 1 to the eighth arithmet...

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Abstract

The digital image fractional differential filter proposed by the present invention is a signal processing circuit device for real-time enhancement of complex texture details of digital images. The fractional order differential filter of the digital image is composed of a digital video popular memory group, a phase lock / shift circuit group, a fractional order differential mask convolution circuit and a maximum value comparator in a cascaded manner. The operation rule of the first algorithm unit circuit to the eighth algorithm unit circuit in the fractional differential mask convolution circuit is to use the scheme of fractional differential mask convolution to realize spatial filtering of digital image fractional differential. The digital image fractional differential filter circuit proposed by the present invention has simple structure, concise operation rules, good texture detail enhancement effect, and high real-time performance, and is especially suitable for high-definition digital television, biomedical images, bank notes, and satellite remote sensing images. Applications such as real-time enhancement of complex texture details such as biometric images.

Description

[0001] Field of study [0002] The fractional differential filter of digital image proposed by the present invention is a signal processing circuit device for real-time enhancement of complex texture detail features of digital image. The order of the fractional differential involved in the present invention is not the traditional integer order, but a non-integer order, and generally takes fractions or rational decimals in engineering applications. See figure 1 , the fractional differential filter of this digital image is composed of a digital video memory bank 9, a phase lock / shift circuit bank 10, a fractional differential mask convolution circuit 11 and a maximum value comparator 12 in a cascaded manner . The operation rules of the first algorithm unit circuit 1 to the eighth algorithm unit circuit 8 in the fractional differential mask convolution circuit 11 are to use the fractional differential mask convolution scheme to realize the spatial filtering of the digital image f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/202H04N9/64
Inventor 蒲亦非
Owner 成都三足鸟科技有限公司
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