scholarly journals A Novel Algorithm for Color Similarity Measurement and the Application for Bleeding Detection in WCE

Author(s):  
Guobing PAN ◽  
Fang XU ◽  
Jiaoliao CHEN
2012 ◽  
Vol 195-196 ◽  
pp. 307-312 ◽  
Author(s):  
Guo Bing Pan ◽  
Fang Xu ◽  
Jiao Liao Chen

Wireless Capsule Endoscopy (WCE) generates a large number of images in one examination of a patient. It is very laborious and time-consuming to detect the WCE video, and limits the wider application of WCE. It is urgent and necessary to develop an automatic and intelligent computer aided bleeding detection technique. This paper proposes the color vector similarity coefficients to measure the color similarity, and based on which, a novel algorithm is implemented to recognize the bleeding in WCE images. The novel algorithm is implemented in RGB color space, and is featured with simple computation and practicability. The experiments show the sensitivity and specificity of this algorithm are 90% and 97% respectively.


2015 ◽  
Vol 75 (2) ◽  
Author(s):  
Lih-Fong Wong ◽  
Mohd Yazid Idris ◽  
Abdul Hanan Abdullah

High color similarity between text pixels and background pixels is the major problem that causes failure during text localization. In this paper, a novel algorithm, Reverse Thresholds (RT) algorithm is proposed to localize text from the images with various text-background color similarities. First, a rough calculation is proposed to determine the similarity index for every text region. Then, by applying reverse operation, the best thresholds for each text region are calculated by its similarity index. To remove other uncertainties, self-generated images with the same text features but different similarity index are used as experiment dataset. Experiment result shows that RT algorithm has higher localizing strength which is able to localize text in a wider range of similarity index.


2020 ◽  
Vol 2020 (15) ◽  
pp. 350-1-350-10
Author(s):  
Yin Wang ◽  
Baekdu Choi ◽  
Davi He ◽  
Zillion Lin ◽  
George Chiu ◽  
...  

In this paper, we will introduce a novel low-cost, small size, portable nail printer. The usage of this system is to print any desired pattern on a finger nail in just a few minutes. The detailed pre-processing procedures will be described in this paper. These include image processing to find the correct printing zone, and color management to match the patterns’ color. In each phase, a novel algorithm will be introduced to refine the result. The paper will state the mathematical principles behind each phase, and show the experimental results, which illustrate the algorithms’ capabilities to handle the task.


2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Renata Grgic-Mustafic ◽  
Nariae Baik-Schneditz ◽  
Bernhard Schwaberger ◽  
Lukas Mileder ◽  
Corinna Binder-Heschl ◽  
...  

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