IMAGE PROCESSING VIA CNN GENES WITH VON NEUMANN NEIGHBORHOODS

2005 ◽  
Vol 15 (12) ◽  
pp. 3999-4006 ◽  
Author(s):  
FENG-JUAN CHEN ◽  
FANG-YUE CHEN ◽  
GUO-LONG HE

Some image processing research are restudied via CNN genes with five variables, and this include edge detection, corner detection, center point extraction and horizontal-vertical line detection. Although they were implemented with nine variables, the results of computer simulation show that the effect with five variables is identical to or better than that with nine variables.

2020 ◽  
Vol 3 (1) ◽  
pp. 45
Author(s):  
Rendi Pambudi ◽  
Totok Winarno ◽  
Sidik Nurcahyo

 Saat ini perkembangan teknologi di bidang robotika berkembang pesat. Terutama pada pemilihan sensor yang akan digunakan pada robot. Dengan kamera sebagai sensor maka robot mampu melakukan visualisasi objek dan keadaan sekitarnya. Dari data visual hasil tangkapan sensor kamera tersebut kemudian di lakukan proses pengolahan citra (image processing) sehingga didapatkan sebuah persamaan untuk pola tindakan robot. Melengkapi robot dengan sensor visi / kamera meningkatkan fleksibilitas dari robot tetapi juga menyebabkan kendalinya semakin kompleks. Meskipun tingkat kesulitannya meningkat, sensor visi menjadi semakin menarik untuk navigasi robot karena memberikan informasi yang kaya tentang lingkungan robot. Pada robot KRPAI berkaki, sensor kamera dapat digunakan sebagai sensor untuk melakukan identifikasi ruangan bersama dengan sensor ultrasonic SRF08. Dengan melakukan pengolahan citra menggunakan metode tresholding, edge detection, dan corner detection robot dapat ber-alignment untuk memposisikan diri dalam melakukan proses identifikasi ruangan. Proses alignment dengan mendeteksi sudut pada ruangan. Setelah sudut dari ruangan terdeteksi, sudut terluar akan dibandingkan untuk mengetahui posisi robot pada saat ini menghadap kemana. Selanjutnya dapat ditentukan robot harus bergerak kemana untuk memposisikan dengan bidang pengukuran. Dengan melakukan alignment untuk memposisikan terhadap bidang pengukuran, dapat meningkatkan ketelitian dalam identifikasi ruangan.


Technologies ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 4
Author(s):  
Dimitris Tsiktsiris ◽  
Dimitris Ziouzios ◽  
Minas Dasygenis

Most frequently, an FPGA is used as an implementation platform in applications of graphics processing, as its structure can effectively exploit both spatial and temporal parallelism. Such parallelization techniques involve fundamental restrictions, namely being their dependence on both the processing model and the system’s hardware constraints, that can force the designer to restructure the architecture and the implementation. Predesigned accelerators can significantly assist the designer to solve this problem and meet his deadlines. In this paper, we present our accelerators for Grayscale and Sobel Edge Detection, two of the most fundamental algorithms used in digital image processing projects. We have implemented those algorithms with a “bare-metal” VHDL design, written purely by hand, as a portable USB accelerator device, as well as an HLS-based overlay of a similar implementation designed to be used by a Python interface. The comparisons of the two architectures showcase that the HLS generated design can perform equally to or even better than the handwritten HDL equivalent, especially when the correct compiler directives are provided.


2013 ◽  
Vol 860-863 ◽  
pp. 2884-2887 ◽  
Author(s):  
Yu Bing Dong ◽  
Ming Jing Li ◽  
Hai Yan Wang

Edge detection is an important field in image processing. Edge detection is in the forefront of image processing for object detection, it is crucial to have a good understanding of edge detection techniques. Various image edge detection techniques are introduced. These techniques are compared by using MATLAB7.0. The qualities of these techniques are elaborated. The results show that Canny edge detection techniques is better than others.


2011 ◽  
Vol 121-126 ◽  
pp. 3904-3908
Author(s):  
Tao Tian ◽  
Zhong Zheng ◽  
Hong Xia Wang ◽  
Mei Luo

To pick-up information from the image, the pretreatment towards the image is necessary. Based on the contrast from the traditional edge detection, the theory of wavelet transform is introduced and studied. Then the image is smoothed through wavelet transforming. Meanwhile, the edge information of the image is intensified using the transforming. This paper proposes a new mage fusion method based on wavelet transform. Across the computer simulation, it’s educed that the result of edge detection based on wavelet transform is much better than the traditional edge detection.


Author(s):  
Y.A. Hamad ◽  
K.V. Simonov ◽  
A.S. Kents

The paper considers general approaches to image processing, analysis of visual data and computer vision. The main methods for detecting features and edges associated with these approaches are presented. A brief description of modern edge detection and classification algorithms suitable for isolating and characterizing the type of pathology in the lungs in medical images is also given.


Mathematics ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 457
Author(s):  
Manuel Henriques ◽  
Duarte Valério ◽  
Paulo Gordo ◽  
Rui Melicio

Many image processing algorithms make use of derivatives. In such cases, fractional derivatives allow an extra degree of freedom, which can be used to obtain better results in applications such as edge detection. Published literature concentrates on grey-scale images; in this paper, algorithms of six fractional detectors for colour images are implemented, and their performance is illustrated. The algorithms are: Canny, Sobel, Roberts, Laplacian of Gaussian, CRONE, and fractional derivative.


Electronics ◽  
2021 ◽  
Vol 10 (14) ◽  
pp. 1665
Author(s):  
Jakub Suder ◽  
Kacper Podbucki ◽  
Tomasz Marciniak ◽  
Adam Dąbrowski

The aim of the paper was to analyze effective solutions for accurate lane detection on the roads. We focused on effective detection of airport runways and taxiways in order to drive a light-measurement trailer correctly. Three techniques for video-based line extracting were used for specific detection of environment conditions: (i) line detection using edge detection, Scharr mask and Hough transform, (ii) finding the optimal path using the hyperbola fitting line detection algorithm based on edge detection and (iii) detection of horizontal markings using image segmentation in the HSV color space. The developed solutions were tuned and tested with the use of embedded devices such as Raspberry Pi 4B or NVIDIA Jetson Nano.


Author(s):  
Sankirti Sandeep Shiravale ◽  
R. Jayadevan ◽  
Sanjeev S. Sannakki

Text present in a camera captured scene images is semantically rich and can be used for image understanding. Automatic detection, extraction, and recognition of text are crucial in image understanding applications. Text detection from natural scene images is a tedious task due to complex background, uneven light conditions, multi-coloured and multi-sized font. Two techniques, namely ‘edge detection' and ‘colour-based clustering', are combined in this paper to detect text in scene images. Region properties are used for elimination of falsely generated annotations. A dataset of 1250 images is created and used for experimentation. Experimental results show that the combined approach performs better than the individual approaches.


2011 ◽  
Vol 308-310 ◽  
pp. 2560-2564 ◽  
Author(s):  
Xiang Rong Yuan

A moving fitting method for edge detection is proposed in this work. Polynomial function is used for the curve fitting of the column of pixels near the edge. Proposed method is compared with polynomial fitting method without sub-segment. The comparison shows that even with low order polynomial, the effects of moving fitting are significantly better than that with high order polynomial fitting without sub-segment.


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