Video Compression Picture Types
In the field of video compression a video frame is compressed using different algorithms with different advantages and disadvantages, centered mainly around amount of data compression. These different algorithms for video frames are called picture types or frame types. The three major picture types used in the different video algorithms are I, P and B. They are different in the following characteristics:
- I‑frames are the least compressible but don't require other video frames to decode.
- P‑frames can use data from previous frames to decompress and are more compressible than I‑frames.
- B‑frames can use both previous and forward frames for data reference to get the highest amount of data compression.
Read more about Video Compression Picture Types: Summary, Pictures/Frames, Slices, Macroblocks, Intra Coded Frames/slices (I‑frames/slices or Key Frames), Predicted Frames/slices (P-frames/slices), Bi-directional Predicted Frames/slices (B-frames/slices)
Famous quotes containing the words video, compression, picture and/or types:
“I recently learned something quite interesting about video games. Many young people have developed incredible hand, eye, and brain coordination in playing these games. The air force believes these kids will be our outstanding pilots should they fly our jets.”
—Ronald Reagan (b. 1911)
“Do they [the publishers of Murphy] not understand that if the book is slightly obscure it is because it is a compression and that to compress it further can only make it more obscure?”
—Samuel Beckett (1906–1989)
“Eloquence is a painting of thought; and thus those who, after having painted it, add something more, make a picture instead of a portrait.”
—Blaise Pascal (1623–1662)
“If there is nothing new on the earth, still the traveler always has a resource in the skies. They are constantly turning a new page to view. The wind sets the types on this blue ground, and the inquiring may always read a new truth there.”
—Henry David Thoreau (1817–1862)