초록 ▼

Since images stored in an image database are encoded, they must be decoded to detect their features. For this reason, when the number of test images is large or each image size is large, the search speed lowers. To solve this problem, a shape information generation unit (4) generates query data on t

Since images stored in an image database are encoded, they must be decoded to detect their features. For this reason, when the number of test images is large or each image size is large, the search speed lowers. To solve this problem, a shape information generation unit (4) generates query data on the basis of an image shape input by a shape input unit (3). A comparison unit (5) compares the query data with encoded data of an image read out from an image database (1). If similarity between these two data is high, the comparison unit makes a decoder (6) decode the encoded data of the image; if the similarity is low, it requests the input unit (2) to input encoded data of the next image.

대표청구항 ▼

Since images stored in an image database are encoded, they must be decoded to detect their features. For this reason, when the number of test images is large or each image size is large, the search speed lowers. To solve this problem, a shape information generation unit (4) generates query data on t

Since images stored in an image database are encoded, they must be decoded to detect their features. For this reason, when the number of test images is large or each image size is large, the search speed lowers. To solve this problem, a shape information generation unit (4) generates query data on the basis of an image shape input by a shape input unit (3). A comparison unit (5) compares the query data with encoded data of an image read out from an image database (1). If similarity between these two data is high, the comparison unit makes a decoder (6) decode the encoded data of the image; if the similarity is low, it requests the input unit (2) to input encoded data of the next image. cations system of claim 18, wherein said isolated test data set comprises a first temporal period of null data symbols on all of said rotation element subbands, a second temporal period of test symbols on first ones of said rotation element subbands, a third temporal period of null data symbols on all rotation element subbands, a fourth temporal period of test symbols on second ones of said rotation element subbands, and a fifth temporal period of null data symbols on all rotation element subbands. 20. The communications system of claim 19, wherein said first and second ones of said rotation element subbands are mutually exclusive. 21. The communications system of claim 19, wherein each of said first and second ones of said rotation element subbands are non-contiguous in frequency. 22. A data communications system for receiving a serialized signal and for substantially recovering an original parallel data set from which said serialized signal is generated, comprising: a receiver element for receiving said serialized signal including a test signal component from a transmitter element via a transmission link; an inverse rotation element, in communication with said receiver element, for receiving said serialized signal from said receiver element and for wavelet analyzing said serialized signal into a recovered parallel data set; and a test signal extraction element for extracting said test signal component from said received, serialized signal, wherein said wavelet analysis is the inverse of a wavelet synthesis applied to said original parallel data set in generating said serialized signal. 23. The data communications system of claim 22, further comprising an assembly element, in communication with said inverse rotation element, for receiving and assembling said recovered parallel data set into serial output data. 24. The data communications system of claim 22, wherein said inverse rotation element comprises a demodulator for demodulating said serialized signal from a carrier. 25. The data communications system of claim 22, wherein said test signal extraction element is adapted for extracting said test signal component as a narrow-band tone of fixed frequency. 26. The data communications system of claim 25, further comprising a receiver oscillator in communication with said test signal extraction element and said inverse rotation element, wherein said test signal extraction element is further for synchronizing said receiver oscillator to said extracted test signal component. 27. The data communications