Computed Tomography Images Enhancement and Denoising

In Computed Tomography (CT), X-ray radiation is used to penetrate through the internal structure of the patient body in order to produce digital images. Therefore patient could be exposed to certain level of X-ray radiation dose. Accumulation of these exposures beyond certain threshold could increase risk of fatal cancer. Thus it is of paramount importance to lower the amount of radiation exposure during CT images acquisition. However, a low radiation dose in CT images would result to lower image quality.

Calibration of a first passage model for CVA applications

Regulatory change, driven in part by the recent credit crisis, has created demand for banks to undertake a highly intensive risk calculation known as Credit Valuation Adjustment (CVA). CVA is essentially the price of an insurance contract covering the bank’s losses in the event that one of its trading counterparties defaults. QuIC, the sponsor of the proposed research project, is in the business of selling similar types of high-volume calculations to large investment banks.

The effect of head injury on cardiovascular and postural controls

Approximately 1.7 million people sustain a head injury each year in the United States alone, and the associated costs exceed $60 billion annually. One of the most common symptoms of a head injury is decreased postural control that may be associated with changes in heart rate and blood pressure which may lead to syncope (fainting), pre-syncope, or falls and re-injury. In order to minimize the risk of re-injury and facilitate healing, further study is required to understand how the cardiovascular and postural control systems interact and how this relationship is affected after a head injury.

Energy-Efficient High Dynamic Range Display

The emerging high dynamic range (HDR) displays provide a much larger range of luminance compared to conventional low dynamic range (LDR) displays, thereby improving the visual impression of the displayed images. This is achieved by expanding the effective dynamic range towards darker and lighter luminance through a combination of a conventional TFT LCD panel and a space-variant background lighting (backlight) system. The backlight can either be a projector or an array of high-luminance LEDs that are individually addressable.

Silver recovery from scrap materials: the security and longevity of raw scrap, and the development of a sustainable business model

Approximately one fifth of all silver produced in North America comes from recycled sources. A large percentage of this is recovered from medical x-rays. Essential Silver Incorporated (ESI) is a silver recycling business based in British Columbia. The company proposes to purchase and streamline a number of silver recycling businesses across North America using x-rays as their primary input. In order to do this, ESI must have a clear understanding of the quantity of x-ray material available and any fluctuations in supply that might occur.

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