Edge correction apparatus for digital video camera

Details Edge correction apparatus for digital video camera Edge correction apparatus for digital video camera

2005-02-01

2005-02-01

Christensen, Andrew (Department: 2615)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S253000, C348S625000, C382S266000

Reexamination Certificate

active

06850275

ABSTRACT:
An edge correction apparatus for a digital video camera includes horizontal and vertical edge signal generators, horizontal and vertical edge signal gain controllers, an adder, a slice processor, and a vertical edge component suppression position detector. The horizontal and vertical edge signal generators respectively generate horizontal and vertical edge correction signals in the horizontal and vertical directions of a sensed image obtained via the image sensing element of a digital video camera. The horizontal and vertical edge signal gain controllers control the gains of the horizontal and vertical edge correction signals. The adder adds the horizontal and vertical edge correction signals whose gains are controlled. The slice processor adds, to the image processing signal of the digital video camera, an edge correction signal obtained by performing slice processing for an edge signal output from the adder. The vertical edge component suppression position detector causes the vertical edge signal gain controller to execute gain control of the vertical edge correction signal in accordance with a horizontal difference signal output from the horizontal edge signal generator.

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T. Akihiro, “Digital Signal Processing For Consumer-Use Single-CCD Video Cameras”, ITEJ Technical Report, Jan. 25, 1991.
Japanese Office Action dated Dec. 4, 2001; English Translation of Japanese Examiner's reason for rejection.

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