| US 7,576,780 B2 | ||
| Signal processing method and apparatus and recording medium | ||
| Tetsujiro Kondo, Tokyo (Japan); Junichi Ishibashi, Saitama (Japan); Takashi Sawao, Tokyo (Japan); Seiji Wada, Kanagawa (Japan); Tohru Miyake, Tokyo (Japan); Takahiro Nagano, Kanagawa (Japan); and Naoki Fujiwara, Tokyo (Japan) | ||
| Assigned to Sony Corporation, Tokyo (Japan) | ||
| Filed on Jun. 05, 2006, as Appl. No. 11/446,886. | ||
| Application 11/446886 is a division of application No. 09/830858, previously published as PCT/JP00/09421, filed on Dec. 28, 2000. | ||
| Claims priority of application No. 11/373782 (JP), filed on Dec. 28, 1999. | ||
| Prior Publication US 2006/0227219 A1, Oct. 12, 2006 | ||
| Int. Cl. H04N 5/225 (2006.01) | ||
| U.S. Cl. 348—220.1 [348/222.1; 348/208.1] | 5 Claims |
| 1. A signal processing apparatus for processing detection data, acquired during a predetermined time period by a sensor made
up of a predetermined number of detection elements having time-integrating effects, every predetermined time period, said
signal processing apparatus comprising:
still/movement decision means for deciding still/movement based on said detection data; and
detection means for detecting a mixed area containing sample data having plural real world objects mixed together based on
the results of discrimination,
wherein said still/movement decision means includes:
first decision means for discriminating whether said sample data being discriminated has moved, before a reference time point,
from a state in which the sample value data is substantially constant with lapse of time to a state in which the sample value
data is changed with lapse of time, and
second decision means for discriminating whether said sample data being discriminated has moved, after said reference time
point, from a state in which the sample value data is changed with lapse of time to a state in which the sample value data
is substantially constant with lapse of time;
said detection means detecting said sample data being discriminated as said sample data belonging to said mixed area when
said first decision means determining that said sample data being discriminated has moved, before a reference time point,
from a state in which the sample value data is substantially constant with lapse of time to a state in which the sample value
data is changed with lapse of time, or when said second decision means determining that said sample data being discriminated
has moved, after said reference time point, from a state in which the sample value data is changed with lapse of time to a
state in which the sample value data is substantially constant with lapse of time.
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