Abstract Aiming at the problem of using traditional Otsu algorithm to segment pitaya disease images, this paper proposes combined with genetic algorithm. The maximum variance between classes obtained by is calculated as fitness value improve accuracy and efficiency optimization. experimental results show that segmentation in are higher, it has certain practical value.

Rapeseed distribution mapping is a crucial issue for food and oil security, entertainment, tourism development. Previous studies have used various remote sensing approaches to map rapeseed. However, the time-consuming labor-intensive sample data in these supervised classification methods greatly limit development of large-scale rapeseed studies. Regarding threshold methods, some empirical thres...

Mammography is usually the first preference of imaging diagnostic modalities used for detection breast cancer in early stage. Two projections Cranio Caudal (CC) and Medio-Lateral Oblique (MLO) which depict different degrees visualizing are during digital mammogram acquisition MLO view shows more tissue Pectoral Muscle (PM) area when compared to CC view. Although, PM a criterion show proper posi...

In both ophthalmological and cardiovascular disease diagnosis, the accurate segmentation of retinal vessel tree has become prerequisite step for automatic or computer-aided diagnosis systems. Unlike typical foreground background in normal image processing, there are three problems making task even harder. First, color tends to be red everywhere, thus having a lower contrast than segmentation. S...

Acknowledgment The authors acknowledge the support of the GAUK, grant No. 914813/2013, GA JU 134/2013/Z, project CENAKVA (CZ.1.05/2.1.00/01.0024) and grant GAČR No. 13-29225S. The authors would also like to thank the staff of Working place of tissue culture certified laboratory at Nové Hrady, namely Monika Homolková and Šárka Beranová for their assistance with the manual segmentation of the cel...

The competency to detect and to recognize the different denomination of coins is an essential expertise in the human beings life. This paper represents different algorithms for the detection and the recognition of coins which are highly overlapped. The proposed system includes three principal steps detection, extraction and recognition. This system is efficient in detecting and recognizing the ...

This paper aims the development of autonomous obstacle avoidance algorithm for automated guided vehicle with a Kinect sensor. To do this task, the followings are executed. Firstly, depth data is obtained from the Kinect sensor, and the mean filter approach is developed to filter out noises. Secondly, Otsu and U-V parallax based method is designed to identify background and obstacles. Finally, A...

Image analysis is an image processing technique that aims to extract features or information from images. Image analysis in medicine has a special place because is a basis for disease diagnosis for physicians. Electrophoresis is a laboratory separating technique. Electrophoresis images are created during the electrophoresis process. Serum protein and hemoglobin electrophoresis test are the ...

The detection of genetically modified (GM) materials in food and feed products is a complex multi-step analytical process invoking screening, identification, and often quantification of the genetically modified organisms (GMO) present in a sample. "Combinatory qPCR SYBRGreen screening" (CoSYPS) is a matrix-based approach for determining the presence of GM plant materials in products. The CoSYPS...