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Embedding watermark into H.264/AVC streams directly can reduce computational complexity compared to encoder-based watermarking algorithms. However, it would cause intra error propagation and decrease the video quality. To improve the video quality and reduce the computational complexity, an improved compensation scheme is developed in this paper. In this scheme, only some of the integer transform...
We present a high-performance hardware architecture for H.264/AVC full-mode intra-frame encoding. We propose a novel method to alleviate performance bottleneck caused by the long data dependency loop among 4times4 blocks. Synthesized into a TSMC 0.13 mum CMOS cell library, our design takes 212 K gates to run at 138 MHz and is able to real-time encode 1080HD (1920times1088) video sequences at 30 frames...
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