"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 10, 2018

contents of issue      DOI  10.30898/1684-1719.2018.10.6     full text in Russian (pdf)  

UDC 004.932.4

Digital imaging system with hardware implementation on Xilinx PLD

 

D. A. Gavrilov 1, A. V. Pavlov 2, D. N. Shchelkunov 1

1 Moscow Institute of Physics and Technology (State University) 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russian Federation

2 Lebedev Institute of Precision Mechanics and Computer Engineering (IPMCE) 119991, Moscow, Leninsky prospect, 51

 

The paper is received on September 28, 2018

 

Abstract. Introduction: technologies of computer vision are widely used in many fields of science and industry. The tasks of vision systems are the acquisition, transmission, reproduction and processing of visual information without loss of information. Algorithms and filters used for preprocessing are designed to suppress noise, retrieve, and store information necessary for further processing. Purpose: the development of a digital image processing module with hardware implementation on the Xillerx XC7Z020-2CLG400I crystal XC7Z020-2CLG400I chip Xilinx, which allows the HDR image to be compressed without loss of image detail and high processing speed. Results: In the presented work, the image processing system based on computer vision technology was developed. The analysis of filters for image processing is carried out, drawbacks and advantages of the bilateral and guided filters are considered, on the basis of which the filter is selected. The algorithm of the selected controlled filter is presented. The hardware implementation of the selected filter on the programmable logic is performed. The authors conducted an effective method for optimizing the guided filter using the integrated image representation and reducing its bit depth, which allowed to increase the efficiency of the filter and to compress the HDR image without loss of quality and with high processing speed. Practical relevance: The developed algorithm provides noise suppression and storage of information necessary for further processing.

Keywords: image processing, bilaterial filter, guided filter, HDR image, HDR image compression, integrated image representation, resource optimization.

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For citation:

D. A. Gavrilov, A. V. Pavlov, D. N. Shchelkunov. Digital imaging system with hardware implementation on Xilinx PLD. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2018. No. 10. Available at http://jre.cplire.ru/jre/oct18/6/text.pdf

DOI  10.30898/1684-1719.2018.10.6