Coding Efficiency of Systems adopting Progressive, Deinterlaced and Interlaced Formats

The paper compares the coding efficiency between interlaced, de-interlaced and progressive pictures, and reports the results of computer simulations performed at different bit-rates, using a hybrid DCT coding scheme. The progressive and interlaced signals have been suitably processed in order to produce the same vertical resolution for static pictures. The de-interlaced signals have been obtained by the interlaced ones by means of de-interlacer algorithms. The results indicate that the coding efficiency per sample for progressive and de-interlaced pictures is higher than that for interlaced ones so that, at low bit rates, the total bit-rate is similar for all the formats. The paper does not consider the influence of noise, added by TV cameras, on the coding efficiency.