Part 8/15:

• Block Artifacts: Over-aggressive compression may lead to visible "blockiness," especially when motion prediction is less accurate. This occurs because fewer bits are allocated for precise motion estimation in heavily compressed videos.

Understanding Frame Types: I, P, and B

The speaker clarifies the different frame types:

• I-Frames (Intra-coded): Self-contained images, serve as reference points.

• P-Frames (Predictive): Encode differences from previous frames using motion vectors.

• B-Frames (Bidirectional): Use both previous and future frames for prediction, providing higher compression but adding decoding complexity.

Strategic placement of I-frames is essential:

• At the start of a video.

• At regular intervals to segment the video.