Scan conversion appts.

A technology of conversion device and conversion circuit, which is applied in the direction of standard conversion, movie film standard conversion, television, etc., and can solve problems such as image degradation
CN1500347AInactive Publication Date: 2004-05-26PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2004-05-26
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The scan conversion apparatus of the present invention comprises a video signal discriminating circuit for discriminating the kind of input video signal based on an interlaced scanning system; a telecine scan conversion circuit for converting input video signal into a video signal based on a progressive scanning system by processing suited for telecine video signal; a scan conversion circuit for converting input video signal into a video signal based on a progressive scanning system suited for signals other than telecine video signal; and a selector which selects and delivers the output from the telecine scan conversion circuit and the output from the scan conversion circuit in accordance with the result of discrimination executed by the video signal discriminating circuit.
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Description

technical field

[0001] The present invention relates to a scan conversion device and a scan conversion method for video (image) signals, in particular to a scan conversion device for mixing telecine video signals converted from movies into video signals with other video signals. Background technique

[0002] In recent years, in the direction of larger size and higher image quality in television systems, scan conversion for converting currently broadcast interlaced video signals into sequential (progressive) video signals for display has been developed.

[0003] As a method of this scan conversion, there are prior art shown below. The input video signal is compared with the fields or frames before and after it, and it is detected whether it is a moving image area, a still image area, or an intermediate area which is an intermediate state between the two, and is classified into the above three types of areas. In the still image area, the input video signal and the video signa...

Claims

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