A Fast Depth Intra Mode Selection Algorithm

For the purpose of reducing the complexity of depth intra coding, a fast intra prediction mode decision algorithm is proposed. First, the fast decision of depth modeling modes (DMMs) is obtained by using Laplace Operator detection method. Second by using the correlation between the wedgelet pattern and texture features, only the wedgelet patterns, which are related to the intra angle mode, is traversed. As a consequence, the number of wedgelet patterns is reduced through this algorithm. Experiment results indicate that the proposed algorithm can reach the same goal with the reduction of computational complexity by 24.7%, while the quality of the video is almost unchanged. Keywords-depth intra coding; depth modeling mode; wedgelet pattern