System for processing a quantized vector using spatial frequency correlations
May 12, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPicture signal coder Video bandwidth reduction system using a two-dimensional transformation, and an adaptive filter with error correction Fast hadamard transform device System for decoding and displaying encoded television pictures Adaptive picture image compression system Progressive image transmission Priority coding of transform coefficients Method for data reduction of digital picture signals by vector quantization of coefficients acquired by orthonormal transformation by means of a symmetrical, nearly cyclical Hadamard matrix Method of compressing and reconstructing image signals by vector quantization Method of image signal encoding by orthogonal transformation InventorAssigneeApplicationNo. 326809 filed on 10/19/1994US Classes:382/232IMAGE COMPRESSION OR CODINGExaminersPrimary: Couso, Jose L.Attorney, Agent or FirmForeign Patent References
International ClassG06K 009/36Foreign Application Priority Data1989-02-28 JPAbstractA quantized vector decoder, a method of making the code book therefor, a system for transferring quantized vector, an image processing apparatus utilizing the vector quantization, and a vector quantizer are disclosed, the quantized vector being arranged to decode codes, which have been formed by vector-quantizing vectors formed of collecting a plurality of data items correlating to one another into output vectors, the decoder comprising: an input device for receiving the codes; a code book for previously storing the output vectors of the vector-quantized codes, each of the output vectors in the code book being constituted by a first output-vector component portion and a second output vector component portion; a retrieval device for retrieving the output vectors in the code book depending upon the correspondence between an input code and the first output-vector component portion; and an output device for transmitting the retrieved output vectors in the form of a combination of their first and second output vector component portions. | |
