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Infrared video enhancement system based on multi-level guided filtering

A guided filtering and video enhancement technology, which is applied to TV system components, TVs, color TVs, etc., can solve problems such as information loss, achieve low delay, high real-time performance, and ensure scalability

Active Publication Date: 2022-06-28
SUZHOU CHANGFENG AVIATION ELECTRONICS
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Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, aiming at the problem of the loss of important detail information produced in the data information conversion process of the LCD display, an infrared video enhancement system based on multi-level guided filtering is proposed

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Embodiment Construction

[0034] The invention provides an infrared video enhancement system based on multi-level guided filtering. The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings to make it easier to understand and grasp.

[0035] refer to Figure 1 to Figure 6 shown.

[0036] In terms of hardware implementation, TI's high-performance dual-core fixed-point / floating-point digital signal processor C6657 and Xilinx's high-performance K7 series FPGA chips are used for design, giving full play to FPGA's multi-functional interface conversion and efficient video capture. Due to the strong function and DSP signal processing capability, the communication method between FPGA and DSP selects a highly reliable and high-performance SRIO interface, and the maximum transmission speed of a single channel can reach 5Gbps. These performance advantages are combined to build a hardware platform.

[0037] The FPGA realizes the functions of da...

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Abstract

The invention discloses an infrared video enhancement system based on multi-level guided filtering, including an FPGA module and a DSP module, and the FPGA module and the DSP module are connected through the SRIO interface; wherein, the FPGA module completes digital single-green video data collection and transmits it through the SRIO interface To the DSP module, after the video enhancement processing is completed in the DSP module, it is sent back to the FPGA module through the SRIO interface. The video data is finally converted by the FPGA module and output to the external screen display by the LVDS interface of the FPGA module. The present invention adopts the framework system of DSP module and FPGA module, and single-frame image processing is efficient. The SRIO interface is used between the DSP module and the FPGA module to realize video transmission, which has the characteristics of high bandwidth, high efficiency, high real-time performance, and low delay. Using boxed filtering to realize multi-level guided filtering, its computational complexity has nothing to do with the window size, and it can retain clear structural features and rich texture details, which is suitable for occasions with high real-time requirements.

Description

technical field [0001] The invention relates to video processing, in particular to an infrared video enhancement system based on multi-level guided filtering, and belongs to the technical field of infrared video enhancement. Background technique [0002] With the modernization of the aircraft cockpit, the display replaces the flight instrument as an important part of the airborne integrated display system. Displays have also evolved from larger and power-hungry cathode ray tube CRT displays to lighter and more reliable liquid crystal displays, LCDs. [0003] However, due to the difference in the imaging principles of the two, the CRT display screen information sampling is continuous from low grayscale to high grayscale, and its video information does not have any loss. However, the display screen of the LCD display is limited by its AD conversion accuracy and the number of data displayed. The display screen will show discontinuous grayscale differences, and some information...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64H04N5/268H04N5/262H04N5/14H04N5/04H04N5/765
Inventor 樊涛孙冲祁伟曹峰
Owner SUZHOU CHANGFENG AVIATION ELECTRONICS
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