High-speed signal search method, device, and recording...

Details High-speed signal search method, device, and recording... High-speed signal search method, device, and recording...

2004-10-22

2009-08-18

Nguyen, Huy T (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000

Reexamination Certificate

active

07577334

ABSTRACT:
A high-speed signal search method, device, and a recording medium for the same that can obtain detection results equivalent to precisely moving a window over the entire region of the input signal even when there is not precise movement of a window over the entire signal. The method provides a first step that generates a feature quantity sequence for a pre-recorded reference signal; a second step that sets the input signal window for the input signal that has been input; a third step that generates a feature quantity sequence for the input signal of this input signal window; a fourth step that calculates the input signal similarity value showing the degree of similarity between the feature quantity sequence generated in the first step and the feature quantity sequence generated in the third step; a fifth step that calculates the skip width showing the amount that the input signal can be moved; and a sixth step that determines the position of the input signal window based on the skip width calculated in the fifth step, sets the input signal window to this position, and calculates the input signal Value for each position of the input signal window by repeating the third step to the sixth step; and further, determines whether or not the reference signal exists at the position that the input signal window presently shows in the input signal based on the result of comparing the input signal similarity value and the predetermined threshold value.

REFERENCES:
patent: 4241329 (1980-12-01), Bahler et al.
patent: 4843562 (1989-06-01), Kenyon et al.
patent: 5623431 (1997-04-01), Clemow
patent: 5778340 (1998-07-01), Hattori
patent: 5828809 (1998-10-01), Chang et al.
patent: 5832173 (1998-11-01), Terasawa et al.
patent: 5917990 (1999-06-01), Zamara et al.
patent: 6163614 (2000-12-01), Chen
patent: 6314392 (2001-11-01), Eberman et al.
Japanese Patent Abstract, Method For Searching Minimum Value of Matching Distance in Speech Recognition; Publication No. 04-198999, Jul. 20, 1992.
Japanese Patent Abstract, “Method and Device for Extracting Indexing Information From Digital Video Data”; Publication No. 10-136297, May 22, 1998.
Kashino, Kunio et al.; “Quick and/or Search of Audio Signals Using Time-Series Active Search”;Technical Report of IEICE; SP99-33, Jun. 1999, pp. 41-48.
Murase, Hiroshi et al.; “Fast Visual Search Using Focused Color Matching”;IEICE, vol. J81-D-II, No. 9, Sep. 1998, pp. 2035-2042.
Murase, Hiroshi et al.; “Fast Visual Search Using Focused Color Matching”;Technical Report of IEICE, PRMU97-17, May 1997, pp. 127-134.
Sugiyama, M.; “Fast Segment Search Algorithms”;Technical Report of IEICE, SP98-141, pp. 39-45.
“Searching for Multiple Sounds at Once”;Acoustical Society of Japan, Spring Meeting, Mar. 10, 11, 12, 1999. pp. 447-449.
Kashino, Kunio et al.; “Quick Audio Retrieval Based on Histogram Feature Sequences”NTT Basic Research Laboratories, Sep. 1998, pp. 561-563.

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