Detection masses in digital mammography images using neural networks Thesis

Detection masses in digital mammography images using neural networks - Thesis Example In film screen mammography, special films and intensifying screens are used to detect breast cancer. FSM provides high quality images at low radiation doses (DeFelice 2002, p. 12). Denise and Farleigh (2005) assert, â€Å"The major limitation of traditional mammography is that the film serves simultaneously as the image receptor, display medium, and long term storage medium for the image†. Digital mammography makes use of solid-state detectors in order to display images of breasts on the computer screen. Denise and Farleigh (2005) found that separation of image acquisition, image processing, and display to be one of the principal advantages of digital imaging system. Digital mammography also makes use of CAD (Computer-Aided Detection), which assists the physicians in image interpretation. Mass detection in mammograms refers to the detection of those groups of cells that cause breast cancer. Bick and Diekmann (2010, p.100) found that sensitivity to be not high enough in mass detection. Computer-aided detection system, cellular neural networks, a two-stage hybrid classification network, and some other techniques can be used for mass detection. Bruynooghe (2006), in an article, found that in case of hybrid network, an unsupervised classifier is used to examine suspicious opacities, and then some supervised interpretation rules are applied to reduce false detections. Cellular neural networks play a vital role in mass detection. Kupinski and Giger (2002) showed in a research that features extracted from potential lesion areas are sent through a neural network to decide whether the area is a true lesion or a false detection. Using CAD as a system for image interpretation is very facilitating for the physicians. However, some researchers suggest improvements in the current CAD technology. One of those suggestions includes development of a CAD system with increased ability to detect actual abnormalities instead of marking

Food production and service systems Essay Example | Topics and Well Written Essays - 1500 words

Food production and service systems - Essay Example The fast food items like meat, eggs, fish, bakery, beverages, etc. are increasingly consumed by the people in today’s world. This led corporate houses in the food industry to invest in fast food business. With the presence of a large number of customers in the fast food industry, the number of business houses began to tap the opportunities of increasing demand of fast food. In order to cater to the rising demand of fast food consumers, the production of the fast food were also increased over the years. In order to provide fast food to the consumers with convenience that specially fits the requirements of cost and time, the fast food outlets were developed. Easy and low cost establishment of the fast food outlets helped this industry to cater to a large number of customers at optimal cost. The delivery system of the fast food chains is also important for sustainable business in the highly competitive markets. Several potential opportunities in fast food industry motivated the producers to invest in the emerging overseas markets apart from their domestic markets for expansion of business. Several fast food outlet and food chains are visible in the food markets with the producers focusing on quality fast food with excellence service to gain competitive edge in this high competitive market. (Brotherton, 2012, p.22). McDonalds McDonalds is one of the largest fast food chains in the world. The company has active presence in 119 countries and is catering more than 68 million customers. McDonalds started their fast food business with the sell of hamburgers which became famous among the consumers. Over the years McDonalds have increased their offerings by looking at the growing demands among their consumers. The production in fast food category of McDonalds includes variety of food items of chicken, fish and also beverages like ice cream. The fast food offered to the customers include hamburgers, fried chickens, cheeseburgers, pizza, French fries, salad, fried fish items, beverages, milkshakes and also a combination of all these offerings (Smith, 2007, p.40). The production and distribution of fast food is customized as per the requirements of different markets. McDonalds have special offerings in the name of McRib which are sandwiches sold by the company for particular seasons. Due to the seasonality of McRib, the sale of such sandwiches is in the peak levels of the season in which it is offered. Several fast food outlets of McDonalds in Asia are selling soup and beverages which are comparatively in high demand in the market. The fast food outlets of McDonalds sell beer in Germany and other European countries. The regional food taboos are also followed by the McDonalds fast food outlets