A two-level sliding-window VBR controller for real-time hierarchical video coding

Manuel De-Frutos-López, Óscar Del-Ama-Esteban, Sergio Sanz-Rodríguez & Fernando Díaz-De-María
In this paper, a novel rate control algorithm for real-time VBR hierarchical video coding is proposed. The algorithm works at two levels that are called long- and short-term levels. The long-term level aims at ensuring that the bit count does not exceed the maximum allowed amount for a few-second long window. To this end, it considers a sliding window spanning several GOPs, which is shifted on a GOP basis. In doing so, it avoids the...
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