Image signal processing device

Details Image signal processing device Image signal processing device

1996-08-30

1997-11-18

Truong, Khoi D.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386112, 386124, 348397, 348405, 348409, 348412, H04N 576

Patent

active

056896123

ABSTRACT:
An image signal processing device generates first image data and second image data based on the same optical image. Each pixel of the second image data is offset from the corresponding pixel of the first image data by half the distance between the centers of two adjacent pixels. The first image data is then subjected to a discrete cosine transformation (DCT), quantization, and Huffman encoding, and is recorded to an IC memory card. High resolution image data is generated based on the first and second image data. Expanded image data is obtained based on the first image data, and supplementary data is generated based on the high resolution image data and the expanded image data. The supplementary data is subjected to DCT, quantization and Huffman encoding, and is recorded to the same IC memory card.

REFERENCES:
patent: 5173773 (1992-12-01), Ueda et al.
patent: 5410307 (1995-04-01), Hekstra et al.
patent: 5412428 (1995-05-01), Tahara
patent: 5473704 (1995-12-01), Abe
patent: 5497246 (1996-03-01), Abe

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