A One-Pass Extended Depth of Field Algorithm Based on the Over-Complete Discrete Wavelet Transform
Andrew P. Bradley, Pascal Bamford · 2004
In this paper we describe an algorithm for extended depth of field (EDF) imaging based on the over-complete discrete wavelet transform (OCDWT). We extend previous approaches by describing a, potentially real-time, algorithm that produces the EDF image after a single pass through the ‘stack ’ of focal plane images. In addition, we specifically study the effect of over-sampling on EDF reconstruction accuracy and show that a small degree of over-sampling considerably improves the quality of the EDF image.