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24 March 2008 Assessment of temporal display using observers
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Most assessments of display performance are limited to studying the display quality for static images. However, dynamic scenes constitute a large fraction of medical images and are becoming more widespread due to the increase in the number of images to be interpreted. The image quality of a dynamic scene is affected by the display's temporal characteristics and the human visual system's temporal response. We propose to use a computational observer to understand the effect of image browsing speed in medical displays. We use a 3D cluster lumpy background to study the effect of different browsing speeds using liquid crystal display (LCD) temporal response measurements reported in our previous work. The image set is then analyzed by the computational observer. This allows us to quantify the effect of slow temporal response of medical LCDs on the performance of the anthropomorphic observer. Slow temporal response of the display device affects the lesion contrast and the observer performance. Human visual system also adds to the complexity of image perception of dynamic scenes. A human observer study was used to validate the computational observer results.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hongye Liang and Aldo Badano "Assessment of temporal display using observers", Proc. SPIE 6917, Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment, 69170Q (24 March 2008);


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