The Digital Outcome Measure

Choosing an outcome measure.

Most orthopaedic surgeons are being asked to evaluate the outcome of their practice with very little guidance as to how to accomplish this. Their approach may be simply to conduct short-term audit of perioperative complications regularly, or to implement some form of measuring instrument which can be given to all patients. They may wish to implement an outcome measure but are unable to obtain a...

Editorial: The Era of the Outcome Measure

T he short history of hearing aid fitting can be divided into three eras . The first era, from roughly 1946 to about 1970, might be described as the era of the PB list. A fitting was successful when the aided speech recognition score for single-syllable words was optimized. The second era, from the 1970s to the present, might be described as the era of the engineering solution . A fitting was s...

Measuring patients' views: the optimum outcome measure.

applying digital image correlation method to measure flow field

in this study digital image correlation (dic) technique combined with a high speed video system was used to predict movement of particles in a water model. comparing with particle-image velocimetry (piv) technique, it provides a low cost alternative approach to visualize flow fields and was successfully employed to predict the movement of particles in a water model at different submergence dept...

Perceptual fidelity measure of digital color images

A digital color image quality metric is proposed in this work based on the characteristics of the human visual system (HVS). Chromatic coordinates are transformed from spectral cone absorption responses to the opponent-color space. The sensitivity thresholds in each of the color space axes are measured and visual masking models are provided and parameterized. Multiple contrasts are computed by ...