Mohammad Motiur Rahman

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The calcification plaque is one kind of artifacts or noises, which is occurred in the Computed Tomography (CT) images as a very high attenuation coefficient. Computed Tomography (CT) images are more helpful than other modalities (e.g. Ultrasonic Imaging, Magnetic Resonance Imaging (MRI) etc.) for disease diagnosis but unfortunately, CT image is an affected(More)
Optimizing threshold value of wavelet coefficient is an important task in speckle noise reduction in the wavelet domain. Without proper selection of threshold value image information may be lost, which is unwanted. In this paper we proposed optimum threshold parameter using Fisher Discriminant Analysis (FDA) for determining the optimum threshold value of(More)
— A new effective method for speckle noise reduction in ultrasound imaging is introduced in this paper. The proposed method is based on Extra-Energy Reduction (EER) function in the vector field, which is addressed by vector triangular formula. It is reasonable to decide that the calculated the energy of a pixel by vector triangular formula is less than the(More)
Reservation of adequate food is a major concern for many developing countries worldwide. Governments of those countries also want to meet the demand of food in the long term, especially during the period of natural calamity. For low lying region such as Bangladesh, predicting the supply of food is critical. Besides, rice productivity of Bangladesh has also(More)
—Medical image segmentation is a fundamental task in the medical imaging field. Optimal segmentation is required for the accurate judgment or appropriate clinical diagnosis. In this paper, we proposed automatically gradient threshold estimator of anisotropic diffusion for Meyer's Watershed algorithm based optimal segmentation. The Meyer's Watershed(More)
The climate of a region is often determined by its landscape and amount of vegetation present in it. Environment parameters such as rainfall, wind-speed and humidity are highly influenced by these alluvial features. Bangladesh, a country situated on the banks of the Himalaya, does not have a homogeneous topography. Human settlement over the course of(More)
ZigBee is a protocol for high-level communication under IEEE 802.15.4 standard. ZigBee network specification creates a personal area network for small, less-power consuming radio communication. The vast use in device to device communication of ZigBee turns its possibility in the use of the Internet of Things. A large amount of sensor nodes is interconnected(More)
In this paper we present and evaluate a novel method for an efficient speckle denoising by using principal component analysis (PCA) with bit plane slicing and nonlinear diffusion. We use PCA transformation for generating de-correlated dataset from a noisy image. Then we apply bit plane slicing on the de-correlated dataset and nonlinear diffusion is applied(More)
In this paper, a method for adaptive Canny edge detection algorithm is proposed. Adaptive Canny algorithm is used to increase the accuracy of output objects. In traditional Canny need to set two threshold values manually, so there are some defects to different images but this paper puts faorward an adaptive threshold values based on mean and median values.(More)