dynDCT: a dynamically adaptable integer DCT

Discrete Cosine Transform represented a paramount in image and video coding for many years. De- spite its diffusion and popularity, the presence of floating- point operations has tackled the possibility of obtaining lossless systems. Moreover floating point computations lead to higher power consumption, hence higher energy demands. In this work a novel DCT structure is proposed, starting from a promising study by Nguyen et al. The so-called dynDCT represents a quite promising solution, being able to achieve significant operation savings with respect to traditional, lifting-based approaches.