A survey on image preprocessing techniques for diverse fields of medical imagery

Author(s):  
P. Vasuki ◽  
J. Kanimozhi ◽  
M. Balkis Devi
Romanticism ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 157-166
Author(s):  
Nikki Hessell

John Keats's medical studies at Guy's Hospital coincided with a boom in interest in both the traditional medicines of the sub-continent and the experiences of British doctors and patients in India. Despite extensive scholarship on the impact of Keats's medical knowledge on his poetry, little consideration has been given to Keats's exposure to Indian medicine. The poetry that followed his time at Guy's contains numerous references to the contemporary state of knowledge about India and its medical practices, both past and present. This essay focuses on Isabella and considers the major sources of information about Indian medicine in the Regency. It proposes that some of Keats's medical imagery might be read as a specific response to the debates about medicine in the sub-continent.


Author(s):  
Matylda Szewczyk

The article presents a reflection on the experience of prenatal ultrasound and on the nature of cultural beings, it creates. It exploits chosen ethnographic and cultural descriptions of prenatal ultrasounds in different cultures, as well as documentary and artistic reflections on medical imagery and new media technologies. It discusses different ways of defining the role of ultrasound in prenatal care and the cultural contexts build around it. Although the prenatal ultrasounds often function in the space of enormous tensions (although they are also supposed to give pleasure), it seems they will accompany us further in the future. It is worthwhile to find some new ways of describing them and to invent new cultural practices to deal with them.


2012 ◽  
Vol 31 (6) ◽  
pp. 1706-1708
Author(s):  
Peng ZHANG ◽  
Jun ZHONG ◽  
An-ming GUO ◽  
Qiang PENG
Keyword(s):  

Author(s):  
Xiaolin Tang ◽  
Xiaogang Wang ◽  
Jin Hou ◽  
Huafeng Wu ◽  
Ping He

Introduction: Under complex illumination conditions such as poor light sources and light changes rapidly, there are two disadvantages of current gamma transform in preprocessing face image: one is that the parameters of transformation need to be set based on experience; the other is the details of the transformed image are not obvious enough. Objective: Improve the current gamma transform. Methods: This paper proposes a weighted fusion algorithm of adaptive gamma transform and edge feature extraction. First, this paper proposes an adaptive gamma transform algorithm for face image preprocessing, that is, the parameter of transformation generated by calculation according to the specific gray value of the input face image. Secondly, this paper uses Sobel edge detection operator to extract the edge information of the transformed image to get the edge detection image. Finally, this paper uses the adaptively transformed image and the edge detection image to obtain the final processing result through a weighted fusion algorithm. Results: The contrast of the face image after preprocessing is appropriate, and the details of the image are obvious. Conclusion: The method proposed in this paper can enhance the face image while retaining more face details, without human-computer interaction, and has lower computational complexity degree.


2021 ◽  
Vol 16 ◽  
pp. 155892502110050
Author(s):  
Junli Luo ◽  
Kai Lu ◽  
Yueqi Zhong ◽  
Boping Zhang ◽  
Huizhu Lv

Wool fiber and cashmere fiber are similar in physical and morphological characteristics. Thus, the identification of these two fibers has always been a challenging proposition. This study identifies five kinds of cashmere and wool fibers using a convolutional neural network model. To this end, image preprocessing was first performed. Then, following the VGGNet model, a convolutional neural network with 13 weight layers was established. A dataset with 50,000 fiber images was prepared for training and testing this newly established model. In the classification layer of the model, softmax regression was used to calculate the probability value of the input fiber image for each category, and the category with the highest probability value was selected as the prediction category of the fiber. In this experiment, the total identification accuracy of samples in the test set is close to 93%. Among these five fibers, Mongolian brown cashmere has the highest identification accuracy, reaching 99.7%. The identification accuracy of Chinese white cashmere is the lowest at 86.4%. Experimental results show that our model is an effective approach to the identification of multi-classification fiber.


Sign in / Sign up

Export Citation Format

Share Document