Hierarchy type encoding/decoding apparatus

Details Hierarchy type encoding/decoding apparatus Hierarchy type encoding/decoding apparatus

1995-05-22

1998-05-05

Mancuso, Joseph

Image analysis

Image compression or coding

Pyramid, hierarchy, or tree structure

382233, 382236, 348398, 348407, 348424, G06T 900

Patent

active

057487871

ABSTRACT:
A hierarchical encoding/decoding apparatus corresponds to imaging systems having mutually different resolutions. The apparatus constitutes an entire band width apparatus by using two encoding/decoding devices each for a low band width processing. In the low band width, the apparatus sub-samples a signal only in a vertical direction, while the apparatus sub-samples the signal only in a horizontal direction in a high band width. Accordingly, since sampling numbers are the same each other both in the low and high band widths, a processing amount in the high band width becomes similar to a processing amount in the low band width.

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patent: 4849810 (1989-07-01), Ericsson
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patent: 5216719 (1993-06-01), Oh
patent: 5337089 (1994-08-01), Fisch
Delogue et al. "Compatible Coding of Digital Interlaced HDTV." IEEE Journal on Selected Areas in Communications, vol. 11, No. 1, pp. 146-152, Jan. 1993.
Abstract of JP 4-177992 (English language) (see "AL" above).
Abstract of JP 4-322593 (English language) (see "AM" above).
Abstract of JP 4-328982 (English language).
Burt et al. "The Laplacian Pyramid as a Compact Image Code." IEEE Trans. on Comm., vol. COM-31, No. 4, Apr. 1983, pp. 532-540.

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