Tatiana G. Kwaaitaal-Spassova

An algorithm for integrated noise reduction and sharpness enhancement

Noise filters tend to blur image detail, while filters for image sharpening tend to increase noise. So, cascading the two filters does not always give the best performance. We present an integrated filter that reduces noise or sharpens details in a noisy video signal, depending on local image statistics.

Integrated spatio-temporal noise reduction with implicit motion compensation

3D motion-compensated noise filters require two filters, a means to balance between the two, and motion estimation and compensation circuits. We present a high-quality low-cost integrated filter, which provides implicit motion compensation without using motion vectors.

Single-chip TV noise reduction

This new noise reduction IC for consumer TV automatically adapts to the noise level, and achieves 3 dB improvement when used stand-alone. It doubles the gain of current NR designs when cascaded.