Method and apparatus for improving conversion from SD to HDTV

Method and apparatus for improving conversion from SD to HDTV

A. Field of the Invention Image enhancement is achieved by a combination of linear and non-linear techniques. The linear technique is preferably peaking, while the non-linear techniques is preferably LTI. The peaking is applied to non-edge areas of the image. The LTI is applied to edge areas of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: He, Haiyan, Janssen, Johan Gerard Willem Maria
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A. Field of the Invention Image enhancement is achieved by a combination of linear and non-linear techniques. The linear technique is preferably peaking, while the non-linear techniques is preferably LTI. The peaking is applied to non-edge areas of the image. The LTI is applied to edge areas of the image. LTI is of the sub-pixel variety. The image enhancement device is preferably part of a device for converting standard definition to high definition signals.