The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1999
Filed:
Sep. 19, 1997
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A video signal encoding and/or decoding method based on adaptive lattice quantization. An input frame of a video sequence is partitioned into blocks of pixel data called vectors. The set of the vectors is partitioned into blocks called macroblocks. The vectors in each macroblock are subjected to lattice vector quantization which examines the range of vector components in multiple dimensions and adjusts the density of lattice vectors in accordance with the range of vector components. Quantization unit replaces each input vector for a nearest lattice vector in multidimensional space. Each quantized vector in the macroblock is converted into an index of a lattice vector. An overhead information about the range in a macroblock and set of indices with or without subsequent Huffman or Arithmetic coding is transmitted to or stored in the receiver end.