Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-03-28
2006-03-28
An, Shawn S. (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240200, C375S240230, C375S240080, C375S240220, C375S240250, C375S240260, C382S233000, C382S235000, C382S246000, C382S250000, C382S251000, C382S253000
Reexamination Certificate
active
07020194
ABSTRACT:
The present invention relates to an apparatus and a method for vector descriptor representation and multimedia data retrieval, which can quantize a plurality of feature values described by a vector descriptor respectively, represent the quantized feature values in the form of bit or orthogonally transform the quantized bector feature values, and rearrange the feature values represented in the form of bit from the highest bit to the lowest bit or rearrange the transformed coefficient from low frequency to high frequency to represent the vector descriptor hierarchically. Moreover, when retrieving multimedia data, the present invention can code in variable length and store the rearranged feature values and the number of feature values which are input, inversely code only the feature values corresponding to the number of the feature values of the stored feature values, inversely arrange the inversely coded feature values to be restored to original feature values, inversely quantize the restored feature values, and compare the feature values restored by the inverse quantization with the feature values stored in a multimedia database to retrieve multimedia data.
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Kim Hae Kwang
Kim Jin Woong
Kim Mun Churl
Sim Dong Gyu
An Shawn S.
Baker & Botts LLP
Geist Bradley B.
Hyundai Electronics Ind. Co. Ltd.
Tejwani Manu J.
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