Modified artificial bee colony based computationally efficient multilevel thresholding for satellite image segmentation using Kapur’s, Otsu and Tsallis functions

A Soft-computing Assisted Tool to Detect and Analyse Brain Tumor

“…During this procedure, the image performance metrics, such as Jaccard Index (JI), Dice Index (DI), False Positive (FP) rate and False Negative (FN) rate are computed [28]. These metrics are mathematically expressed as follows; (18) where, I gt represents the Ground Truth (GT) and I pm stands for the segmented image with proposed method.…”

“…Kapur's entropy is one of the procedures, widely used because of its dominance and elasticity. Kapur's entropy based multi-thresholding was largely discussed by the researchers to extract the important information from the RGB / gray scale test images [17][18][19][20][21]. This paper proposes a computer assisted technique to segment and analyze tumor from the brain MRI dataset.…”

Automated method for structural segmentation of nasal airways based on cone beam computed tomography

“…At the same time, we need to take into account that for different nature of image and for different segmented structures we can use different approaches for segmentation. Some works [20][21][22] focus on application multilevel segmentation using Otsu thresholding. One of the most interesting methods of segmentation is the level set approach.…”

A Novel Time-Delay Estimation Methodology Based on Spread Spectrum Communications

“…Underwater acoustic communication are commonly use search method, namely after capture using the local carrier wave with different frequency to signal demodulation, choose the best carrier in order to realize the carrier synchronization, but the complexity of the algorithm is higher, the general real-time system can use this method. So the doppler frequency shift are estimated directly became a kind of effective method of underwater acoustic spread spectrum communication system, based on chirp Z transform (CZT) algorithm for doppler frequency shift of underwater acoustic spread spectrum communication system estimate method, for the processing of doppler frequency shift only considered the effect of frequency shift, and for the expansion of the doppler shift effect didn't make a corresponding analysis and consideration [6][7][8][9].…”