Synthesized image detection unit
AssigneeFujitsu Limited
InventorsHideki Matsuoka, Takashi Hamano
Life of this patent
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Abstract
A high quality image is achieved by reducing the occurrence of combing noise in a synthesized image having an inserted image of a different frame frequency. A feature amount of a screen produced by an input interlace-scanned video signal is extracted, a film mode on a screen-by-screen basis from the feature amount extracted is detected, the input interlace-scanned video signal to be a synthesized image is decided from a local area in the screen, and the film mode detection is controlled not to output the film mode detection result, based on the decision result.
Claims10
A synthesized image detection unit comprising:
- an extracting unit to extract a feature amount of a screen produced by an input interlace-scanned video signal;
- a film mode detection unit to detect a film mode on a screen-by-screen basis from the feature amount extracted by the extracting unit;
- a decision unit to decide the input interlace-scanned video signal to be a synthesized image from a local area in the screen;
- and
- a film mode correction unit to control the film mode detection unit not to output the film mode detection result, based on the decision result by the decision unit.
A synthesized image detection unit comprising:
- a screen feature amount extracting unit to extract a feature amount of a screen produced by an input interlace-scanned video signal;
- a film mode detecting unit to detect a film mode on a screen-by-screen basis from the feature amount extracted by the screen feature amount extracting unit;
- a local area selecting unit to select a local area in the input interlace-scanned video signal;
- a synthesized image decision unit to decide the input interlace-scanned video signal to be a synthesized image local area feature amount extracting unit to extract, based on the local area selected by the local area selecting unit;
- and
- a film mode correction unit to control the film mode detecting unit not to output the detected film mode as a decision result, based on the decision result of the synthesized image decision unit.
A non-transitory storage medium storing a program which is readable by a synthesized image detection unit which performs IP (Interlace to Progressive) conversion optimal for displaying an interlace-scanned video signal successively on a scanning display, when the program is executed, the synthesized image detection unit being configured to perform:
- extracting a feature amount of a screen produced by an input interlace-scanned video signal;
- detecting a film mode on a screen-by-screen basis from the feature amount extracted;
- deciding the input interlace-scanned video signal to be a synthesized image from a local area in the screen;
- and
- controlling in the film mode detection, not to output the film mode detection result, based on the decision result.
Dependencies are inferred from the claim text.