Signal processing device and method, and recording medium
AssigneeSony Corporation
InventorsTetsujiro Kondo, Junichi Ishibashi, Takashi Sawao, Seiji Wada, Tohru Miyake, Takahiro Nagano, Naoki Fujiwara
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Abstract
A signal processor 12 acquires a second signal obtained by detecting a first signal, as a signal of the real world, having a first dimension. The second signal is of a second dimension lower than the first dimension and has distortion relative to the first signal. The signal processor 12 performs signal processing which is based on the second signal to generate a third signal alleviated in distortion as compared to the second signal.
Claims43
A signal processing apparatus comprising:
- a signal acquiring unit configured to acquire second signals of a second dimension by projecting first signals as real-world signals of a first dimension on a sensor and by detecting the mapped signals by said sensor, said second dimension being lower than said first dimension;
- and
- a signal processor configured to extract significant information, buried by said projection from said second signals, by performing signal processing which is based on said second signals, and adjust distortion produced by projection according to the significant information,
- wherein a projecting period for acquiring the second signal is divided into at least two equal time periods according to a number of movement quantities upon acquiring the second signal, signals obtained in each of the equal time periods being used to generate the significant information.
A signal processing method comprising:
- a signal acquisition step of acquiring a second signal by projecting a first signal as a real world signal of a first dimension on a sensor and detecting the so-mapped first signal by said sensor, said second signal being of a second dimension lower than said first dimension;
- a signal processing step of performing signal processing based on said second signal to extract significant information buried by projection from said second signal;
- and
- adjusting distortion produced by projection according to the significant information,
- wherein a projecting period for acquiring the second signal is divided into at least two equal time periods according to a number of movement quantities upon acquiring the second signal, signals obtained in each of the equal time periods being used to generate the significant information.
A recording medium having recorded thereon a computer-readable program, said program comprising:
- a signal acquisition step of acquiring a second signal by projecting a first signal as a real world signal of a first dimension on a sensor and detecting the so-mapped first signal by said sensor, said second signal being of a second dimension lower than said first dimension;
- a signal processing step of performing signal processing based on said second signal to extract significant information buried by projection from said second signal;
- and
- adjusting distortion produced by projection according to the significant information,
- wherein a projecting period for acquiring the second signal is divided into at least two equal time periods according to a number of movement quantities upon acquiring the second signal, signals obtained in each of the equal time periods being used to generate the significant information.
A signal processing apparatus comprising:
- a signal acquisition unit configured to acquire a second signal by detecting a first signal as a real world signal of a first dimension by a sensor, said second signal being of a second dimension lower than said first dimension and containing distortion caused by integrating effects of said sensor with respect to said first signal;
- and
- a signal processor configured to extract significant information, buried by projection from said second signal, by performing signal processing on said second signal, and to generate a third signal alleviated in distortion as compared to said second signal according to the significant information,
- wherein a detecting period for acquiring the second signal is divided into at least two equal time periods according to a number of movement quantities upon detecting the second signal, signals obtained in each of the equal time periods being used to generate the significant information.
A signal processing apparatus for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing apparatus comprising:
- an area specifying unit configured to specify a foreground area made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- a mixing ratio detector configured to detect a mixing ratio of said foreground object components and said background object components at least in said mixed area;
- and
- a separating unit configured to separate said mixed area in units of a pixel into said foreground object component and said background object component based on the specified results by said area specifying unit and said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A signal processing method for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing method comprising:
- an area specifying step of specifying a foreground area, made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- a mixed area detection step of detecting a mixing ratio of said foreground object components and said background object components at least in said mixed area;
- and
- a separating step of separating said mixed area into said foreground object and said background object based on the specified results by said area specifying step and said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A recording medium having a computer-readable program, recorded thereon, said computer-readable program comprising:
- an area specifying step of specifying a foreground area, made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- a mixed area detection step of detecting a mixing ratio of said foreground object components and said background object components at least in said mixed area;
- and
- a separating step of separating said mixed area into said foreground object and said background object based on the specified results by said area specifying unit and said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A signal processing apparatus for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing apparatus comprising:
- an area specifying unit configured to specify a foreground area, made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- a mixing ratio detecting unit configured to detect a mixing ratio between said foreground object components and said background object components at least in said mixed area based on the results specified by said area specifying unit and areas before and after said mixed area,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A signal processing method for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing method comprising:
- an area specifying step of specifying a foreground area, made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- and
- a mixing ratio detecting step of detecting a mixing ratio between said foreground object components and said background object components at least in said mixed area based on the results specified by said area specifying step,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A recording medium having a computer-readable program recorded thereon, said signal processing method for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said computer-readable program comprising:
- an area specifying step of specifying a foreground area, made up only of foreground object components constituting an foreground object, a background area made up only of background object components constituting a background object, and a mixed area mixed from said foreground object components and the background object components;
- and
- a mixing ratio detecting step of detecting a mixing ratio between said foreground object components and said background object components at least in said mixed area based on the results specified by said area specifying step,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A signal processing apparatus for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing apparatus comprising:
- a mixing ratio detecting unit configured to detect a mixing ratio of foreground object components and background object components in a mixed area in which said foreground object components constituting a foreground object and said background object components constituting a background object are mixed;
- and
- a separating unit configured to separate said mixed area into said foreground object and said background object based on said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A signal processing method for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said signal processing method comprising:
- a mixing ratio detecting step of detecting a mixing ratio of foreground object components and background object components in a mixed area in which said foreground object components constituting a foreground object and said background object components constituting a background object are mixed;
- and
- a separating step of separating said mixed area into said foreground object and said background object based on said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
A recording medium having recorded thereon a computer-readable program for processing a predetermined number of detection signals acquired by a sensor made up of a predetermined number of detection elements having time integrating effects, said computer-readable program comprising:
- a mixing ratio detecting step of detecting a mixing ratio of foreground object components and background object components in a mixed area in which said foreground object components constituting a foreground object and said background object components constituting a background object are mixed;
- and
- a separating step of separating said mixed area into said foreground object and said background object based on said mixing ratio,
- wherein a detecting period for acquiring the predetermined number of detection signals is divided into at least two equal time periods according to a number of movement quantities upon acquiring the predetermined number of detection signals, signals obtained in each of the equal time periods being used to generate the mixing ratio.
Dependencies are inferred from the claim text.