Pseudo interlacing in digital video
AssigneeIntel Corporation
InventorRohit Agarwal
Life of this patent
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Abstract
Sequential digital video frames are divided into two interleaved fields comprising even-numbered horizontal lines of pixels and odd-numbered lines horizontal lines of pixels respectively. The "even" field of a first standard frame is combined with the "odd" field of a second standard frame to form a first pseudo-interlaced frame of data for display; then the same odd field is combined with the even field of a third standard frame to form a second pseudo-interlaced frame of data for display, and so on throughout a continuing digital-video message. The data transmission rate needed is thus reduced by nearly a factor of two, or conversely, for a given data rate, nearly twice as much video information can be transmitted in the same time interval.
Claims26
A computer-implemented method, comprising the steps of:
- (a) transmitting from an encoding node to a remote decoding node a sequential plurality of fields of digital video data, each field of the sequential plurality of fields corresponding to a portion of individual ones of a sequential plurality of video frames;
- and
- (b) repeatedly interleaving a current field of the sequential plurality of fields with at least an immediately preceding field, wherein each current field corresponds to a portion of a current video frame and each preceding field corresponds to a different portion of an immediately preceding video frame, to provide a series of pseudo-interlaced video frames.
An apparatus, comprising:
- (a) an encoding node for transmitting to a remote decoding node a sequential plurality of fields of digital video data, each field of the sequential plurality of fields corresponding to a portion of individual ones of a sequential plurality of video frames;
- and
- (b) means for repeatedly interleaving a current field of the sequential plurality of fields with at least an immediately preceding field, wherein each current field corresponds to a portion of a current video frame and each preceding field corresponds to a different portion of an immediately preceding video frame, to provide a series of pseudo-interlaced video frames.
A computer-implemented method for decoding video images, comprising the steps of:
- (a) receiving a sequential plurality of fields of digital video data, each field of the sequential plurality of fields corresponding to a portion of individual ones of a sequential plurality of video frames;
- and
- (b) repeatedly interleaving a current field of the sequential plurality of fields with at least an immediately preceding field, wherein each current field corresponds to a portion of a current video frame and each preceding field corresponds to a different portion of an immediately preceding video frame, to provide a series of pseudo-interlaced video frames.
An apparatus for decoding video images, comprising:
- (a) means for receiving a sequential plurality of fields of digital video data, each field of the sequential plurality of fields corresponding to a portion of individual ones of a sequential plurality of video frames;
- and
- (b) means for repeatedly interleaving a current field of the sequential plurality of fields with at least an immediately preceding field, wherein each current field corresponds to a portion of a current video frame and each preceding field corresponds to a different portion of an immediately preceding video frame, to provide a series of pseudo-interlaced video frames.
Dependencies are inferred from the claim text.