摘要:
An apparatus includes an input unit to which replay information including a broadcasting section of a replay video and a reference section representing an actual filming time zone, and information for designating a length of a digest are input; a replay importance degree computing unit that obtains the number of replays, an interval between predetermined positions of the replay broadcasting section and the replay reference section, a time length of replay broadcasting, speed of replay broadcasting, the number of cut switches of the replay from the replay information, and computes the importance degree of the replay video on the basis of these items; and a digest creating unit that sets the replay video as a digest candidate, and selects a combination of the digest candidates based on a length condition of the digest and a composite importance degree of the combination of digest candidates.
摘要:
An electroencephalogram interface system includes: a presentation section for presenting multiple options to a user, the multiple options being manipulable items concerning manipulations of a device; a selection flicker control section for flickering each option; an inference section for inferring one option corresponding to a desired manipulation of the user by utilizing an event-related potential of an electroencephalogram of the user, the event-related potential being based on the flickering of each option as a starting point; a confirmation flicker control section for effecting confirmation flickering of the one option inferred; a determination section for determining whether the inferred option corresponds to the desired manipulation of the user by utilizing an event-related potential of the user's electroencephalogram, the event-related potential being based on the confirmation flickering of the one option as a starting point; and an output section for executing a process which is in accordance with the determined result.
摘要:
A driving attention amount determination apparatus includes: an electroencephalogram measurement section for measuring an electroencephalogram signal of a driver; a central stimulation presentation section for presenting a visual stimulation in a central visual field of the driver; a peripheral stimulation presentation section for presenting a visual stimulation in a peripheral visual field of the driver; a threshold setting section for setting a determination threshold for attention amount determination from a distribution of amplitude of an event-related potential in the electroencephalogram signal based on a point of presenting the stimulation in the central visual field as a starting point; and an attention amount determination section for determining an attention amount through a comparison between the determination threshold and an amplitude of an event-related potential in the electroencephalogram signal based on a point of presenting the stimulation in the peripheral visual field as a starting point.
摘要:
An exemplary electroencephalogram measurement system includes: a frequency analysis section for, analyzing a frequency power of the electroencephalogram signal of a user with respect to each set of a reference electrode and a measurement electrode; an insufficient electrode determination section for, through comparison of the analyzed frequency power against a first threshold value, distinguishing whether a state of attachment of each electrode is sufficient or not; and an insufficiency cause estimation section for determining the number of insufficient electrodes distinguished as insufficiently worn, determining a position at which each insufficient electrode is in contact with the user, and estimating a cause for the insufficient state of attachment of the insufficient electrode or electrodes that corresponds to the determined number of insufficient electrodes and position of each insufficient electrode by referring to insufficiency pattern data.
摘要:
An electroencephalogram measurement apparatus includes: an electroencephalogram measurement section for measuring an electroencephalogram of a user by using a plurality of electrodes; an electro-acoustic transducer for presenting an acoustic signal to the user, the electro-acoustic transducer being in a vicinity of at least one electrode among the plurality of electrodes while the electroencephalogram measurement section is worn by the user; an amplitude envelope extraction section for extracting an amplitude envelope of the acoustic signal presented by the electro-acoustic transducer; a frequency analysis section for applying a frequency analysis to the amplitude envelope extracted by the amplitude envelope extraction section; and a noise estimation section for estimating an electrical noise which is mixed at the at least one electrode by using a previously provided set of transform rules and the extracted amplitude envelope.
摘要:
An apparatus includes an input unit to which replay information including a broadcasting section of a replay video and a reference section representing an actual filming time zone, and information for designating a length of a digest are input; a replay importance degree computing unit that obtains the number of replays, an interval between predetermined positions of the replay broadcasting section and the replay reference section, a time length of replay broadcasting, speed of replay broadcasting, the number of cut switches of the replay from the replay information, and computes the importance degree of the replay video on the basis of these items; and a digest creating unit that sets the replay video as a digest candidate, and selects a combination of the digest candidates based on a length condition of the digest and a composite importance degree of the combination of digest candidates.
摘要:
An eyeglass-type electroencephalogram interface system is worn on the head of a user. The system includes: an output section for presenting a visual stimulation to the user; an ear electrode portion disposed at a position coming in contact with an ear of the user when the system is worn; a facial electrode portion disposed at a position coming in contact with the face below a straight line connecting an external canthus and an internal canthus of an eye of the user, such that the mass of the system is supported at the position, when the system is worn; and an electroencephalogram measurement and determination section for measuring an event-related potential on the basis of a potential difference between the ear electrode portion and the facial electrode portion based on the visual stimulation being presented by the output section as a starting point.
摘要:
A brain wave interface (IF) is started up using user's brain wave signals. A brain wave IF system comprises a brain wave measuring portion for measuring brain wave signals, a function controlling portion which analyzes an event-related potential contained in brain signals and outputs a function control signal for controlling the function of the apparatus based on the analysis results, and an output portion for outputting the function control signal. A start-up device comprises a start-up judging portion and a stimulus-attention judging portion. The start-up judging portion transmits, to the output portion, a stimulus control signal for controlling presentation/extinction of a visual stimulus which is a single item in the output portion when the brain wave IF system is not working, and compares a value of a P200 component of the event-related potential starting on a presentation timing of a visual stimulus out of the brain wave signals acquired from the brain wave measuring portion with a predetermined threshold value to determine whether or not to output a start-up trigger to the function controlling portion based on the comparison results. The stimulus-attention judging portion judges whether the user is paying attention to the visual stimulus based on an N100 component of the event-related potential starting on the presentation timing of the visual stimulus and makes the start-up judging portion start processing according to the judgment results. The brain wave IF system is started by the start-up judging portion outputting the start-up trigger.
摘要:
An electroencephalogram IF system includes an electroencephalogram measurement section for measuring an electroencephalogram signal, a function control section for analyzing an event-related potential contained in the electroencephalogram signal and outputting a function control signal for controlling a function of a device based on the result of analysis, and an output section for outputting the function control signal. The activation apparatus includes: an activation determination section for, while the electroencephalogram IF system is not functioning, transmitting to the output section a stimulation control signal for controlling presentation and vanishing of a visual stimulation on a single-item on the output section and, within the electroencephalogram signal acquired from the electroencephalogram measurement section, allowing a P200 component value of an event-related potential since the timing of presenting the visual stimulation as a starting point to be compared against a predetermined threshold value, and determining whether or not to output an activation trigger to the function control section based on the result of comparison; and a stimulation attention determination section for determining whether or not the user is paying attention to the visual stimulation based on an N100 component of the event-related potential since the timing of presenting the visual stimulation as a starting point, and causing processing by the activation determination section to begin depending on the determination result. When the activation determination section outputs an activation trigger, the electroencephalogram IF system is activated.
摘要:
The distraction detection apparatus includes: an electroencephalogram detection section for detecting an electroencephalogram signal of a driver; an arousal level estimation section for retaining a first rule of mapping parameter values of an electroencephalogram signal to arousal levels, and estimating an arousal level based on the detected electroencephalogram signal and the first rule; an attention allocation estimation section for retaining a second rule of mapping parameter values of an electroencephalogram signal to attention allocations, and estimating an attention allocation based on the detected electroencephalogram signal and the second rule; a driver state estimation section for retaining a third rule of deriving an amount of attention from an arousal level and an attention allocation, estimating an amount of attention of the driver paid to driving based on the estimated arousal level and attention allocation and the third rule, and classifying a state of the driver into a normal state, a state of reduced attention, or a state of reduced arousal level; and an output section for performing an intervention for the driver based on a result of classification by the driver state classification section.