System and method for performing interlaced-to-progressive conversion using interframe motion data
First Claim
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1. An apparatus comprising:
- a decode unit which receives a first encoded interlaced video signal including encoded interframe motion compensation data, and responsively transmits a decoded interlaced video signal and associated interframe motion compensation data; and
a de-interlace unit which converts said first interlaced video signal to a first progressive video signal by using the interframe motion compensation data to detect an image region moving faster than a threshold rate, and reconstructing said region using only the odd or the even rows of said interlaced signal.
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Abstract
An apparatus is described comprising: a decode unit which receives an encoded interlaced video signal including encoded interframe motion compensation data, and responsively transmits a decoded interlaced video signal and associated interframe motion compensation data; and a de-interlace unit which converts the interlaced video signal to a progressive video signal, and which, responsive to the interframe motion compensation data, selects a region of the interlaced video signal for a different type of conversion, the selection based on the change in position of the region between successive video frames.
41 Citations
51 Claims
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1. An apparatus comprising:
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a decode unit which receives a first encoded interlaced video signal including encoded interframe motion compensation data, and responsively transmits a decoded interlaced video signal and associated interframe motion compensation data; and a de-interlace unit which converts said first interlaced video signal to a first progressive video signal by using the interframe motion compensation data to detect an image region moving faster than a threshold rate, and reconstructing said region using only the odd or the even rows of said interlaced signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising the steps of:
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receiving an encoded interlaced video signal including encoded interframe motion compensation data, said encoded interlaced video signal comprised of data for generating an interlaced video image, and said encoded interframe motion compensation data identifying motion of a region of said interlaced video image; separating said interframe motion compensation data from said interlaced video signal; de-interlacing said region of said interlaced video image by selecting only the even or the odd rows of an interlaced video image region in response to said interlaced region having changed in position between successive video frames by at least a particular distance; and de-interlacing the remaining portions of said interlaced video image using a both odd and even rows of said interlaced video signal. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for converting an encoded video signal comprising the steps of:
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determining a source video data type encoded in said encoded video signal; determining whether said source video data type is one for which interframe motion compensation data should be for conversion; selecting a particular frame rate conversion ratio if said source video data type is capable of conversion without use of said interframe motion compensation data; and using said frame rate conversion ratio to convert each frame of said source video data type to one or more frames of destination video data type. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. An apparatus comprising:
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a decode unit which receives an encoded interlaced video signal including encoded interframe motion compensation data, and responsively transmits a decoded interlaced video signal and associated interframe motion compensation data; and a de-interlacer, which converts said interlaced video signal to a progressive scan video signal, responsive to detecting in said interframe motion compensation data an interlaced region that has changed in position between successive video frames by at least a particular distance, reconstructs said interlaced region using only the odd or the even rows of said interlaced video signal. - View Dependent Claims (50, 51)
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Specification