Improved Signal Processing Techniques for Color Television Broadcasting

McMann, Renville H.; Goldberg, A. A.

doi:10.5594/j07030

Cited by 15 publications

(1 citation statement)

References 3 publications

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“…This technique improves the subjective "crispness" of the image. 33 The unmatrixed green CFA processor to provide symmetric three-line vertical edge enhancement. The vertical "detail" signal, which carries the high-frequency edge information from the ' ' -0.5 + 1 -0.5' ' vertical filter, is horizontally filtered before being summed with the horizontal ' ' -1 + 2 -1 ' ' detail signal in order to prevent double enhancement of diagonal edges.…”

Section: Color Filter Arraymentioning

confidence: 99%

High-performance digital color video camera

Parulski

D'Luna

Benamati

et al. 1992

J. Electron. Imaging

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Typical one-chip color cameras use analog video processing circuits. An improved digital camera architecture has been developed using a dual-slope AID conversion technique and two full-custom CMOS digital video processing integrated circuits, the color filter array (CFA) processor and the ROB postprocessor. The system uses a 768 x 484 active element interline transfer CCD with a new field-staggered 3G color filter pattern and a lenslet overlay, which doubles the sensitivity of the camera. The industrial-quality digital camera design offers improved image quality, reliability, and manufacturability, while meeting aggressive size, power, and cost constraints. The CFA processor digital VLSI chip includes color filter interpolation processing, an optical black clamp, defect correction, white balance, and gain control. The RGB postprocessor digital integrated circuit includes a color correction matrix, gamma correction, two-dimensional edge enhancement, and circuits to control the black balance, lens aperture, and focus.

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Section: Color Filter Arraymentioning

confidence: 99%