Mazda Motor Corporation

Koji Iwase

Akihide Takami

Makoto Yoshida

Kazuo Sakamoto

Yohei Iwashita

Toshihiro Hara

Junichiro Kuwahara

Yusaku Takeda

Kazuo Nishikawa

Atsuhide Kishi

Masatoshi Yoshida

Haruhisa Kore

Takanori Kume

Satoru Matsuoka

Takahide Nouzawa

Hideki Takahashi

Masashi Utsumi

Hironobu Yonezawa

Takahide Nozawa

Tadashi Isa

Richard Veale

Teru Iyota

A driver abnormality determination apparatus includes circuitry configured to detect a driver state of a driver of a vehicle, detect a driving operation of the driver, detect an exertion level of an involuntary function of the driver based on the driver state, detect an exertion level of a driving function of the driver based on the driving operation; and determine driver abnormality based on the execution level of the involuntary function and the execution level of the driving function. On condition that a function level of one of the execution level of the involuntary function and the execution level of the driving function is equal to or lower than a specified determination criterion, the circuitry is configured to relax a determination criterion for the other function level.

Driver abnormality determination apparatus, method and computer program

A state of a user of a mobile terminal having a display for displaying an image may be estimated. A sightline detection detector detects a user's sightline of a mobile terminal that has a display for displaying an image. Processing circuitry is configured to estimate a state of the user including an attention function degraded state based on motion of the user's sightline with respect to the image displayed on the display of the mobile terminal.

State estimation device, method and computer program therefor

A state of a user of a mobile terminal having a display for displaying an image may be estimated. A sightline detector detects a sightline of the user of a mobile terminal and processing circuitry is configured to estimate a state of the user. The processing circuitry is configured to determine a top-down index value that is correlated with an attention source amount allocated to top-down attention of the user with respect to an image displayed on a display of the mobile terminal. The processing circuitry is configured to determine a bottom-up index value correlated with the attention source amount allocated to bottom-up attention of the user with respect to the image displayed on the display. The processing circuitry is configured to estimate the user state including an attention function degraded state based on the top-down index value and the bottom-up index value.

[Solution] A driver abnormality determination system includes circuitry configured to detect a driving operation of a driver, detect behavior of the driver's head and motion of eyeballs and/or movement of a sightline of the driver, recognize a driving scene in which the vehicle is driven; a memory that stores a sensor table of a relationship between the driving scene and detected values to be used to determine a driver abnormality; and determine the driver abnormality based on the sensor table, the driving scene, the driving operation and the behavior.

Driver abnormality determination system, method and computer program

A device, method and computer program product provide driver state estimation. A first index value correlated with an amount of an attention source allocated to top-down attention of a driver and a second index value correlated with an amount of the attention source allocated to bottom-up attention of the driver are determined. The driver state including an attention function degraded state of the driver is estimated based on the first index value and the second index value. A vehicle being operated by the driver may be controlled in accordance with the estimated driver state.

Driver state estimation device, method and computer program therefor

A device, method and computer program product provide driver state estimation. A first index value correlated with an amount of an attention source allocated to top-down attention of a driver in a first area where the top-down attention of the driver is predominant and a second index value correlated with an amount of the attention source allocated to bottom-up attention of the driver in a second area where the bottom-up attention of the driver is predominant are determined. The driver state including an attention function degraded state of the driver may be estimated based on the first index value in the first area and the second index value in the second area. A vehicle being operated by the driver may be controlled in accordance with the estimated driver state.

The present invention includes: a visual perception target determination unit for determining a visual perception target by using a saliency model for determining that an object to be visually perceived at a glance is a visual perception target, a surprise model for determining that an object behaving abnormally is a visual perception target, and a normative model for determining that an object to be visually perceived by a viewing action of a driver serving as a norm is a visual perception target; and a visual guidance unit for determining whether or not an overlooked visual perception to which a line-of-sight direction detected by a line-of-sight detection unit is not directed is present, and guiding a line-of-sight of a driver toward the overlooked visual perception target, when the overlooked visual perception target is present.

Visual perception assistance system and visual-perception target object detection system

An edge of, for example, a windshield which serves as range of vision is defined by front pillars, a roof, and a dashboard. A modification area is provided at a peripheral portion of the windshield. In the modification area, visual saliency (visual conspicuousness) can be partially increased by means of, e.g., liquid crystals.

Device controlling range of vision

A driving assist device for a vehicle of the present invention, comprising an object detection device to detect an object to be recognized around the vehicle, an eyes-direction specification device to specify a direction of driver's eyes, and a mark indication device to indicate a specified-shape mark at a specified portion of a windshield that is located in the direction of the driver's eyes specified by the eyes-direction specification device and then to indicate the specified-shape mark in such a manner that the mark overlaps with the object. Accordingly, the driver can be properly made recognize any object in danger even in case the driver's eyes are not directed to such object.

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Aki-gun, Japan

Koji Iwase