Video compression utilizes different picture types (or frame types) to reduce the size of video files while maintaining quality. The main picture types used in video compression, particularly in codecs like MPEG, H.264, and H.265, are: 1. **I-Frames (Intra-coded Frames)**: - These are the key frames in a video stream. - They are compressed independently of other frames, this means they contain all the information needed to display the frame.
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