Morphological dilation for radar image enhancement

Rahman, Arief Nur; Heriana, Octa; Putranto, Prasetyo; Darwis, Fajri; Pristianto, Eko Joni; Wijayanto, Yusuf Nur

doi:10.1109/icramet.2017.8253147

Cited by 3 publications

(6 citation statements)

References 2 publications

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“…The binary template matching for morphological dilation method developed in our study is shown in Figure 6. This method is quite different from a method used in our previous study [4] which is shown in Figure 7. In the previous study, there were only a few narrow empty gaps occurred in raw data plotting process to radar PPI display due to the leakage of the computational process.…”

Section: System Designmentioning

confidence: 80%

“…calculate the position of the pixel coordinates X and Y based on (4) and (5): Figure 8 is the template used to determine the dilation pattern. Templates are compared to input data in the form of binary values from 2x512 cell array of raw data.…”

Section: ) Read the Motor Angle Data 2) Determine The Center Coordimentioning

confidence: 99%

“…The main function of binary template matching is to search the raw data properties obtained by radar DSP system based on their binary values for data preprocessing. By implementing this method, the various width of empty gaps could be filled more, better than the use of morphological dilation method performed in the previous research [4].…”

mentioning

confidence: 93%

“…The larger the size of the matrix, the wider the outer side of the pixel addition. The almost similar morphological dilation method has been carried out in previous studies to improve the less visible radar PPI display image [4]. In this study, the motor system used is quite different.…”

mentioning

confidence: 99%

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Binary Template Matching for Morphological Dilation Enhancement in Navigation Radar Imaging

Heriana

Praludi

Wael

2018

indones.j.electron.telecommun.

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Radar imaging system is strongly influenced by other supporting systems. There is a motor system that provides angular information to the display system, and Digital Signal Processing (DSP) system that provides the main information for radar imaging. The new approach, we substitute a DC servo motor with a DC stepper motor as radar antenna rotator in our navigation radar system development. Different from the use of servo motors that can provide angle movements smoothly, the new motor system provides angle information of 0.56 degrees in every step, results in empty pixel gaps in every 0.56 degrees in radar Plan Position Indicator (PPI) image. The width of the empty pixel gaps becomes wider when the cell array of raw data is increasing regarding the image plotting process. In this paper, we proposed a new morphological dilation method to the radar raw data based on binary template matching to accommodate the various width of empty pixel gaps before the radar raw data are plotted into the radar PPI image. By this method, the morphological dilation will only be applied to the raw data that meet the same criteria as the binary template. Otherwise, the raw data will be left as they are. The result shows that there is 150.52% pixel data addition in the empty pixel gaps from the original image, and 48.44% increase of the morphological dilation without binary template matching method.

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Section: System Designmentioning

confidence: 80%

Section: ) Read the Motor Angle Data 2) Determine The Center Coordimentioning

confidence: 99%

mentioning

confidence: 93%

mentioning

confidence: 99%

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Binary Template Matching for Morphological Dilation Enhancement in Navigation Radar Imaging

Heriana

Praludi

Wael

2018

indones.j.electron.telecommun.

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“…Dilation is a morphological image processing technique [18], for a binary image 'I', erosion by a structuring element 'S', produces an output image 'O', with '1' in all the locations of (x,y) of 'S' at which 'S' hits 'I'.…”

Section: G Dilationmentioning

confidence: 99%

Analysis of Image Pre-processing in Noisy Character Recognition

Gupta¹

2019

CVRJST

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This paper demonstrates the importance of various pre-processing steps for the noisy character recognition system with the help of MATLAB simulated results. Image preprocessing is one of the first and foremost steps for working with images of noisy characters among handwritten characters, printed characters, online written characters or offline written character, and it can have mixed font characters, omni-font characters, boxed discrete character, spaced discrete character or pure cursive script writing. Pre-processing of such image aims at image noise reduction, image normalization, and image compression. This paper shows that there are various steps/methods of image pre-processing. The sequence and use of a particular step/method is used based on the application requirement. The simulation result presented in this paper highlights the usability of each pre-processing steps and review the commonly used methods of each preprocessing stage.

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Analisis Perbandingan Perbaikan Kualitas Citra Pada Motif Batik Dengan Konsep Deteksi Tepi Robert, Sobel, Canny Menggunakan Metode Morfologi

Masril

Yuhandri

Na’am

2019

RESTI

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Image results from quality edge detection are not optimal. From these problems a method is needed to improve the image quality of edge detection. The method used is Dilation Morphology on the results of edge detection of batik patterns. The results of testing the improved image quality of edge detection 10 batik patterns using Dilation Morphology show that Canny operators are able to produce very high accuracy from operators Robert and Sobel, with the percentage of Canny operators is 80%. While Robert operators with a percentage of 40% and Sobel operators 60%. The application of Dilation Morphology to operators Robert, Sobel and Canny can improve image quality of edge detection and improve accuracy in batik patterns.

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Morphological dilation for radar image enhancement

Cited by 3 publications

References 2 publications

Binary Template Matching for Morphological Dilation Enhancement in Navigation Radar Imaging

Binary Template Matching for Morphological Dilation Enhancement in Navigation Radar Imaging

Analysis of Image Pre-processing in Noisy Character Recognition

Analisis Perbandingan Perbaikan Kualitas Citra Pada Motif Batik Dengan Konsep Deteksi Tepi Robert, Sobel, Canny Menggunakan Metode Morfologi

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