Browsing by Subject "Image quality"
Now showing items 1-9 of 9
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Atherosclerotic plaque ultrasound video encoding, wireless transmission, and quality assessment using H.264
(2011)We propose a unifying framework for efficient encoding, transmission, and quality assessment of atherosclerotic plaque ultrasound video. The approach is based on a spatially varying encoding scheme, where video-slice ...
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Despeckle filtering for multiscale amplitude-modulation frequency-modulation (AM-FM) texture analysis of ultrasound images of the intima-media complex
(2014)The intima-media thickness (IMT) of the common carotid artery (CCA) is widely used as an early indicator of cardiovascular disease (CVD). Typically, the IMT grows with age and this is used as a sign of increased risk of ...
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An embedded saliency map estimator scheme: Application to video encoding
(2007)In this paper we propose a novel saliency-based computational model for visual attention. This model processes both top-down (goal directed) and bottom-up information. Processing in the top-down channel creates the so ...
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Conference Object
Market model for level of detail control
(ACM, 1999)In virtual reality simulations the speed of rendering is vitally important. One of the techniques for controlling the frame rate is the assignment of different levels of detail for each object within a scene. The most ...
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Conference Object
Non-stationary texture segmentation using an AM-FM model
(1997)We present a novel method for segmenting non-stationary textures. Our approach uses a multidimensional AM-FM representation for the texture, and provides the FM features to an SOFM-LVQ neural network system that performs ...
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Optimal scanning, display, and segmentation of the International Labor Organization (ILO) x-ray images set for pneumoconiosis
(2001)A method for scanning and displaying chest radiographs (x-rays) is presented. The new method treats scanning independent of display, allowing for maximum information content to be captured during the scanning process, and ...
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Conference Object
Quality evaluation of ultrasound imaging in the carotid artery
(2004)Image quality assessment plays an important role in various image-processing applications. In this work we evaluate image quality criteria based on mean square error, signal to noise error, and quality and structural ...
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Quality evaluation of ultrasound imaging in the carotid artery based on normalization and speckle reduction filtering
(2006)Image quality is important when evaluating ultrasound images of the carotid for the assessment of the degree of atherosclerotic disease, or when transferring images through a telemedicine channel, and/or in other image ...