Marcelo Schiavon Porto

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Motion estimation (ME) is the most important component of current video encoders, however, it presents a very high computational complexity. To deal with this complexity, fast ME search algorithms are widely used, since they can greatly speed up this process. Fast search algorithms are vulnerable to choose local minima, producing quality losses, and these(More)
This paper presents a new mode decision for the depth maps intra-frame prediction in 3D-HEVC. The proposed technique decides if the traditional High Efficiency Video Coding-based (HEVC) intra-frame prediction should be performed or skipped. This technique is inspired by the fact that traditional intra-frame prediction may generate artifacts in the(More)
This paper presents an efficient hardware architecture for motion estimation (ME) in high resolution digital videos. This architecture is built upon the new Multi-Point Diamond Search algorithm (MPDS) which is a fast algorithm that increases the ME quality when compared with other fast algorithms. The MPDS is able to reduce local minima falls, increasing(More)
This work presents a hardware design for the Sample Adaptive Offset filter, which is an innovation brought by the new video coding standard HEVC. The architectures focus on the encoder side and include both classification methods used in SAO, the Band Offset and Edge Offset, and also the statistical calculations for the offset generation. The proposed(More)
The 3D video coding increases significantly the complexity of the coding process when compared to 2D video coding. The emergent 3D-High Efficiency Video Coding (3D-HEVC) standard, which is an extension of the High Efficiency Video Coding (HEVC) standard, inserts new tools in the coding process to better deal with 3D video characteristics. This increase in(More)
This paper presents our high performance architecture for Motion Estimation (ME) using efficient 4-2 and 8-2 adder compressors to calculate the Quarter Sub-sampled Diamond Search (DS) block matching algorithm with Dynamic Iteration Control (QSDS-DIC) [1]. Motion estimation (ME) is the most important task in the current standards of video compression. Full(More)
This paper presents the architectural design for Motion Estimation (ME) based on the new Multi-Point Diamond Search block matching algorithm. This algorithm reduces the local minima falls in the ME search process, increasing the quality of the ME prediction results. This paper presents a software evaluation about the MPDS which presented an average PSNR(More)