Patent US5365280A successfully refreshed from Google Patents.
US5365280A
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Method and apparatus for discriminating between movie film and non-movie film and generating a picture signal processing mode control signal
Assignee: Koninklijke Philips NV
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Filing: 1993-06-11
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Granted: 1994-11-15
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Expires: 2013-06-11
Abstract
Abstract In a method of controlling a picture signal processing mode, first and second motion vectors are determined (ME, D T ) for first and second fields, and a picture signal processing mode control signal is obtained by comparing (D T , -, COMP-R) the first and second motion vectors. The control signal may be transmitted along with, for example, a HDTV signal to give an indication to a TV receiver whether the signal originated from movie-film or from non-movie-film or be generated within the receiver.
Inventors
- 👤 Gerard De Haan
- 👤 Hendrik Huijgen
- 👤 Paul W. A. C. Biezen
- 👤 Olukayode A. Ojo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:37
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/144; H04N5/145; H04N19/00; H04N19/50; H04N19/503; H04N19/51; H04N19/513; H04N19/521; H04N7/00; H04N7/01; H04N7/0112; H04N7/015
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
108 words
A method of generating a control signal indicating whether a received picture signal originated from a movie-film source or from a non-movie-film source by a video camera for controlling a picture signal processing mode for the received picture signals, comprising the steps of: (a) determining first motion vectors for a first field of the received picture signals, (b) determining second motion vectors for a second field of the received picture signals, (c) comparing said first and second motion vectors and based upon said comparison generating a control signal indicating whether the received picture signal originated from a movie-film source or from a non-movie-film source by a video camera.
Claim 2
Independent Claim
108 words
A method of generating a control signal indicating whether a received picture signal originated from a movie-film source or from a non-movie-film source by a video camera for controlling a picture signal processing mode for the received picture signals, comprising the steps of: (a) determining first motion vectors for a first field of the received picture signals, (b) determining second motion vectors for a second field of the received picture signals, (c) comparing said first and second motion vectors and based upon said comparison generating a control signal indicating whether the received picture signal originated from a movie-film source or from a non-movie-film source by a video camera.
Claim 3
Dependent Claim
62 words
A method of controlling a picture signal processing mode as claimed in claim 1, wherein said comparing step comprises the further steps of: determining a sum of lengths of said first and second motion vectors to obtain an activity signal; and changing said picture signal processing mode control signal only when said activity signal has a predetermined relation with an activity threshold.
Claim 4
Dependent Claim
49 words
A method of controlling a picture signal processing mode as claimed in claim 2, wherein when said picture signal processing mode control signal indicates that said picture signal originates from movie-film, said picture signal processing mode control signal is only changed when said activity signal exceeds said activity threshold.
Claim 5
Dependent Claim
96 words
A method of controlling a picture signal processing mode as claimed in claim 2, wherein when said picture signal processing mode control signal indicates that said picture signal processing mode is motion-compensated, said picture signal processing mode control signal is changed to indicate a motion-compensated picture signal processing mode when said activity signal falls below said activity threshold, while said picture signal processing mode control signal is changed to indicate a non-motion-compensated picture signal processing mode when a sum of differences between said first and second motion vectors at corresponding spatial positions exceeds a reliability threshold.
Claim 6
Dependent Claim
102 words
A method of controlling a picture signal processing mode as claimed in claim 1, wherein when said picture signal processing mode control signal indicates whether said picture signal originates from movie-film, said comparing step comprises the further steps of: determining a first total of lengths of said first motion vectors; determining a second total of lengths of said second motion vectors; and changing said picture signal processing mode control signal to indicate movie-film when said first and second totals differ by more than given thresholds and to indicate non-movie-film when said first and second totals differ by less than said given thresholds.
Claim 7
Dependent Claim
26 words
A method of controlling a picture signal processing mode as claimed in claim 5, wherein said given thresholds depend on said first or said second total.
Claim 8
Dependent Claim
82 words
A method of controlling a picture signal processing mode as claimed in claim 5, wherein said picture signal processing mode control signal indicates a first type of movie-film originating picture signals when said first total is smaller than said second total by more than a first given threshold, while said picture signal processing mode control signal indicates a second type of movie-film originating picture signals when said first total is larger than said second total by more than a second given threshold.
Claim 9
Dependent Claim
111 words
Apparatus for generating a control signal indicating whether a received picture signal originated from a movie-film source or from a non-movie-film source by a video camera for controlling a picture signal processing mode for the received picture signals, comprising: (a) means for determining first motion vectors for a first field of the received picture signals, (b) means for determining second motion vectors for a second field of the received picture signals, (c) means for comparing said first and second motion vectors and based upon said comparison for generating a control signal indicating whether the received picture signal originated from a movie-film source or from a non-movie-film source by a video camera.
Claim 10
Dependent Claim
111 words
Apparatus for generating a control signal indicating whether a received picture signal originated from a movie-film source or from a non-movie-film source by a video camera for controlling a picture signal processing mode for the received picture signals, comprising: (a) means for determining first motion vectors for a first field of the received picture signals, (b) means for determining second motion vectors for a second field of the received picture signals, (c) means for comparing said first and second motion vectors and based upon said comparison for generating a control signal indicating whether the received picture signal originated from a movie-film source or from a non-movie-film source by a video camera.
Claim 11
Dependent Claim
63 words
An apparatus for controlling a picture signal processing mode as claimed in claim 8, wherein when said comparing means comprise: means for determining a sum of lengths of said first and second motion vectors to obtain an activity signal; and means for changing said picture signal processing mode control signal only when said activity signal has a predetermined relation with an activity threshold.
Claim 12
Dependent Claim
62 words
Apparatus for generating a control signal as claimed in claim 9, wherein said means for changing said picture signal processing mode control signal is operative only when said activity signal exceeds said activity threshold, and wherein said comparing means comprises a comparator for comparing said activity signal to said activity threshold and a logic circuit having an input coupled to said comparator.
Claim 13
Dependent Claim
98 words
Apparatus for generating a control signal as claimed in claim 9, wherein, when said picture signal processing mode control signal indicates that said picture signal processing mode is motion-compensated, said means for changing said picture signal processing mode control signal is operative to indicate a motion-compensated picture signal processing mode when a sum of differences between said first and second motion vectors at corresponding spatial positions exceeds a reliability threshold, and wherein said comparing means comprises a comparator for comparing said activity signal to said activity threshold and a logic circuit having an input coupled to said comparator.
Claim 14
Dependent Claim
107 words
An apparatus for controlling a picture signal processing mode as claimed in claim 8, wherein when said picture signal processing mode control signal indicates whether said picture signal originates from movie-film, said comparing means comprise: means for determining a first total of lengths of said first motion vectors and a second total of lengths of said second motion vectors; and means coupled to said determining means for changing said picture signal processing mode control signal to indicate movie-film when said first and second totals differ by more than given thresholds and to indicate non-movie-film when said first and second totals differ by less than said given thresholds.
Claim 15
Dependent Claim
26 words
An apparatus for controlling a picture signal processing mode as claimed in claim 12, wherein said given thresholds depend on said first or said second total.
Claim 16
Dependent Claim
120 words
An apparatus for controlling a picture signal processing mode as claimed in claim 12, wherein said picture signal processing mode control signal indicates a first type of movie-film originating picture signals when said first total is smaller than said second total by more than a first given threshold, while said picture signal processing mode control signal indicates a second type of movie-film originating picture signals when said first total is larger than said second total by more than a second given threshold; and wherein said comparing means comprise first and second comparators having first inputs coupled to receive said first total and second inputs coupled to receive said second total, outputs of said comparators being coupled to a logic circuit.
Claim 17
Dependent Claim
52 words
A receiver for television signals, comprising: means for receiving and decoding said television signals to obtain picture signals; means coupled to said receiving and decoding means for enhancing said picture signals; characterized in that said enhancing means include an apparatus for controlling a picture signal processing mode as defined in claim 8.
Claim 18
Dependent Claim
102 words
A method of controlling a picture signal processing mode as claimed in claim 3, wherein when said picture signal processing mode control signal indicates that said picture signal originates from movie-film, said comparing step comprises the further steps of: determining a first total of lengths of said first motion vectors; determining a second total of lengths of said second motion vectors; and changing said picture signal processing mode control signal to indicate movie-film when said first and second totals differ by more than given thresholds and to indicate non-movie-film when said first and second totals differ by less than said given thresholds.
Claim 19
Dependent Claim
26 words
A method of controlling a picture signal processing mode as claimed in claim 16, wherein said given thresholds depend on said first or said second total.
Claim 20
Dependent Claim
107 words
An apparatus for controlling a picture signal processing mode as claimed in claim 10, wherein when said picture signal processing mode control signal indicates that said picture signal originates from movie-film, said comparing means comprise: means for determining a first total of lengths of said first motion vectors and a second total of lengths of said second motion vectors; and means coupled to said determining means for changing said picture signal processing mode control signal to indicate movie-film when said first and second totals differ by more than given thresholds and to indicate non-movie-film when said first and second totals differ by less than said given thresholds.
Claim 21
Dependent Claim
26 words
An apparatus for controlling a picture signal processing mode as claimed in claim 18, wherein said given thresholds depend on said first or said second total.
Claim 22
Dependent Claim
120 words
An apparatus for controlling a picture signal processing mode as claimed in claim 13, wherein said picture signal processing mode control signal indicates a first type of movie-film originating picture signals when said first total is smaller than said second total by more than a first given threshold, while said picture signal processing mode control signal indicates a second type of movie-film originating picture signals when said first total is larger than said second total by more than a second given threshold; and wherein said comparing means comprise first and second comparators having first inputs coupled to receive said first total and second inputs coupled to receive said second total, outputs of said comparators being coupled to a logic circuit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |