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WorksheetsVideo Fundamentals
Total questions: 13
Worksheet time: 7mins
Which of the following is not a television signal format?
NTSC
TIFF
PAL
HDTV
A video signal transmitted with all the signals mixed together and carried on a single cable is known as
RGB video
composite video
component video
chroma-key video
Computer displays draw the lines of an entire frame in a single pass. This technique is known as
streaming
progressive-scan
flattening
overscan
What is the aspect ratio that high definition television for cinemascope is displayed in
128:8
17:5
16:9
64:3
What is the file size of a 28-second video clip, captured at 20 frames per second with a resolution of 320 × 240 and 24-bit colour?
246 MBytes
123 MBytes
492 MBytes
984 MBytes
What are the salient differences between conventional TV and HDTV?
HDTV has a much wider aspect ratio of 16:9 instead of 4:3.
HDTV moves toward progressive scan instead of interlacing scan.
HDTV has more active lines than conventional TV.
HDTV has higher definition than conventional TV.
Which of the frame in MPEG-2 video compression is treated separately and without reference to any other frames? This frame is encoded independently using the JPEG algorithm. The level of compression obtained with this frame is relatively small.
I-Frame
P-Frame
B-Frame
None of these frames.
P-frames in MPEG-2 video compression are encoding using a combination of ________________ and _______________.
motion estimation, motion compression
motion detection, motion compression
motion estimation, motion compression
motion estimation, motion compensation
What are the advantages of using B-frame?
B-frame provides the highest level of compression. It improves code efficiency as most B-frames use less bits.
B-frame refers to preceding I-frame or P-frame and succeeding I-frame or P-frame.
B-frame has better error propagation as it is not used to predict future frames. It is not involved in the coding of other frames, so it does not propagate errors as that of other two frames.
P-frame is encoded using a combination of motion estimation and motion compensation.
Which of the following are the important components for streaming architecture?
Capture and encoding
Serving
Distribution and delivery
Media player
