Trading accuracy for patient comfort, frame-based fixation yields lowest inter-fraction errors that fall below 0.8 mm [ 2].
However, with the delivery of fewer treatment fractions, errors incurred through daily set-up variations or internal organ motion with each fraction will have a larger impact on overall treatment, and therefore there is clear need for high precision patient localisation techniques with such treatment strategies (Keller et al, 2004; Orton and Tome, 2004).
All benchmark results of existing models are tabulated in terms of void fraction prediction error for the present database.
For example, in AMS's graph of the electron fraction, the error bars at the highest energies are large because the high-energy particles are so rare.
We found that in a very large fraction of error trials (Subject 1, 77.15±0.03%; Subject 2, 91.77±0.04%) participants responded a letter which was present in the array (chance level is at 44%).
††Fraction of error variance due to random effects component.
Various sub-region sizes ranging from 4 σPSF to 8 σPSF were evaluated in the aspects of both localization fraction and error rate that are defined in section 4.2.
Though near 100% errors can be corrected, in experiments, [30] can correct successfully varying the fraction of errors from 0 to 0.95.
Even for the most basic high-dimensional tasks, such as robustly computing the mean and covariance, until recently the only known estimators were either hard to compute or could only tolerate a negligible fraction of errors.
Correcting 100% fraction of errors contradict the information theory and the basic truth.
