An Efficient Hardware Architecture for H.264 Intra Prediction Algorithm

Abstract

In

An Efficient Intra Prediction Hardware Architecture for H.264 Video Decoding

“…The datapath and controller for 8x8 chroma prediction modes are used for generating the predicted pixels for the chroma component of a MB using the given 8x8 chroma prediction mode if intra prediction is selected by the encoder. The proposed datapath and controller designs for 16x16 luma and 8x8 chroma prediction modes shown in Figure 4 are similar to the ones presented in [3]. The difference is that these hardware find the intra prediction only for a given prediction mode, whereas the hardware presented in [3] find the intra predictions for all available prediction modes of a MB.…”

“…This hardware design is based on a novel organization of the 4x4 intra prediction equations. Since this hardware is optimized for finding the intra prediction only for a given 4x4 luma prediction mode, it achieves higher performance for H.264 video decoding than the hardware architecture presented in [3] which is optimized for finding the intra predictions for all available 4x4 luma prediction modes of a MB. The datapath and controller for 16x16 luma prediction modes are used for generating the predicted pixels for the luma component of a MB using the given 16x16 luma prediction mode if 16x16 intra prediction is selected for the luma component of a MB by the encoder.…”

“…The hardware design is based on a novel organization of the intra prediction equations. Since this hardware is optimized for finding the intra prediction only for a given prediction mode, it achieves higher performance for H.264 video decoding than the hardware architecture presented in [3]. The proposed architecture is implemented in Verilog HDL.…”

“…The hardware architecture we presented in [3] for real-time implementation of H.264 intra prediction algorithm is designed to be used as part of a H.264 video encoder for portable applications. The intra prediction hardware used in a H.264 video encoder has to find the intra predictions for all available prediction modes of a MB.…”

“…However, the intra prediction hardware used in a H.264 video decoder has to find the intra prediction only for the prediction mode selected by the encoder. Therefore, the hardware presented in [3] is optimized for finding the intra predictions for all available prediction modes of a MB.…”