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Modern multislice computed tomography (CT) scanners produce isotropic CT images with a thickness of 0.6 mm. These CT images offer detailed information of lung cavities, which could be used for better surgical planning of treating lung cancer. The major challenge for developing a surgical planning system is the automatic segmentation of lung lobes by identifying the lobar fissures. This paper presents...
Today data security is very important and high priority topic. With rapid growth in communication and computer technologies, there is a huge data transaction in mobile, internet, TV, teleconferencing, telemedicine and military applications. For all these applications we need a security. Encryption is one of way to give the security for data; in this regard we propose a hybrid approach for partial...
The present solution gives an optimum algorithm for effective transfer of image codings over a wireless medium. In this paper, the logic behind generating Huffman codes for the gray symbols of an image, its transmission over an AWGN channel and decoding the received code is practically analysed. The coding utilizes a main MATLAB file with associated function to carry out subsequent tasks. The solution...
EyeSeeCam is a novel head mounted camera that is continuously oriented to the user's point of regard by the eye movement signals of a mobile video-based eye tracking device. We have devised a new eye tracking algorithm for EyeSeeCam which has low computational complexity and lends enough robustness in the detection of pupil centre. Accurate determination of the location of the centre of the pupil...
This paper presents a new approach to enhance the contrast of microcalcifications in mammograms using a fuzzy algorithm based on Tsallis entropy. In phase I image is fuzzified using S membership function. In Phase II using the non-uniformity factor calculated from local information the contrast of microcalcifications were enhanced while suppressing the background heavily. This is the first time in...
This paper proposes a new segmentation approach by considering the non extensive property of mammograms. The novel thresholding technique is performed by Tsallis entropy characterized by one more parameter q, which depends on the nonextensiveness of mammogram. Mammograms are typical examples of image with fractal-type structures (nonextensiveness). The proposed approach has been tested on various...
This paper presents a new approach to enhance the contrast of microcalcifications in mammograms using a fuzzy algorithm based on Tsallis entropy. In phase I image is fuzzified using S membership function. In Phase II using the non-uniformity factor calculated from local information the contrast of Microcalcifications were enhanced while suppressing the background heavily. This is the first time in...
Breast cancer is one of the leading causes of women death in the world. Since the causes are unknown, breast cancer cannot be prevented. Micro calcifications are the earliest signs of breast cancer and their detection is one of the most important research areas now. A novel approach for image segmentation of denser mammography images is introduced, for more accurate detection of microcalcifications...
Spywares has become major problem now days. This type of software may track user activities online and offline, provide targeted advertising and/or hold in other types of uninvited activities. Password collection by spywares is increasing at a shocking pace [1]. The problem of entering sensitive data, such as passwords, from an untrusted machine, is obviously undesirable, however roaming users generally...
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