Effect of Grid-Adaptive Interpolation Over Depth Images
Arbaaz Singh · 2014
A suitable interpolation method is essential to keep the noise level minimum along with the timedelay.In recent years, many different interpolation filters have been developed for instance H.264-6 tap filter, and AVS-4 tap filter.This work demonstrates the effects of a four-tap lowpass tap filter (Grid-adaptive filter) on a hole-filled depth image.This paper provides (i) a general form of uniform interpolations for both integer and sub-pixel locations in terms of the sampling interval and filter length, and (ii) compares the effect of different finite impulse response filters on a depth-image.Furthermore, the author proposed and investigated an integrated Grid-adaptive filter, that implement hole-filling and interpolation concurrently, causes reduction in time-delay noticeably along with high PSNR .