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Ioannis Pitas (AUTH)
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This lecture overviews Transform Video Compression that has many applications in digital TV broadcasting, videoconferencing, video streaming and social media. It covers the following topics in detail: Spatiotemporal signal redundancy in video compression. Intraframe video coding (I-frames). Interframe video coding (P-, B-frames). Transform Video Coding (Block-based video coding, Discrete Cosine Transform, DCT Coefficient Quantization, Zig-zag scanning, Variable Length Coding). Predictive coding. MPEG2 and MPEG4 compression standards.
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