Jvc Kenwood Corporation

National University Corporation Hamamatsu University School of Medicine

Shuji Hakoshima

Katsuyuki Shudo

Masaru Ninomiya

Miku Komurata

Hiroyuki Takei

Makoto Kito

Kenji Tsuchiya

A line-of-sight detection device includes a display unit configured to display an image, light sources configured to emit detection light to apply the detection light to an eyeball of a subject, an imaging unit configured to capture an image of the eyeball to which the detection light is applied, a position detection unit configured to detect, from the captured image, a position of a pupil center of the eyeball to which the detection light is applied and a position of a corneal reflex center, a gaze point detection unit configured to calculate a position of a gaze point of the subject based on the positions of the pupil center and corneal reflex center, and a light source control unit configured to change the light source for emitting the detection light among the light sources based on a target distance between the pupil center and the corneal reflex center.

Line-of-sight detection device, line-of-sight detection method, and computer-readable storage medium

An evaluation apparatus includes a display; a gaze point detection unit configured to detect a position of a gaze point of a subject; a display controller configured to display an evaluation image including a main target image, sub target images, and an instruction information to gaze at the main target image; a region setting unit configured to set determination regions for the sub target images; a determination unit configured to determine whether the gaze point is present in the determination regions based on the position of the gaze point; an arithmetic unit configured to measure an arrival time from a predetermined time to a first arrival time of the gaze point at the determination regions based on a result of the determination unit; and an evaluation unit configured to obtain an evaluation data of the subject based on an average or a total value of the arrival times.

Evaluation apparatus, evaluation method, and non-transitory storage medium

An eyeball detection device includes an imaging device that obtains a face image which includes the left and right eyeball images of the target person; a first distance calculating unit that calculates a first-type distance representing the distance between the target person and the imaging device; and an eyeball searching unit that performs a search for the left and right eyeball images from the face image and, when only one of the left and right eyeball images of the target person is detected, searches for the other eyeball image of the target person based on the search result regarding the already-detected eyeball image as obtained by the eyeball detecting unit, based on the first-type distance, and based on a second-type distance representing the distance between the left and right eyeballs of the target person.

Eyeball detection device, eye-gaze tracking device, eyeball detection method, and medium

A visual function detection apparatus includes: a display controller that causes an image for determination to be displayed on a display screen of a display unit; a gazing point detector that detects a position of a gazing point of the test subject observing the display screen; a positional relation detector that detects a positional relation between a position of the image for determination on the display screen and the position of the gazing point; and a visual function detector that detects a visual function of the test subject based on the positional relation.

Visual function detection apparatus, method of detecting visual function, and program

A visual function detection apparatus includes: a display controller configured to cause an image for determination to be displayed in a display region on a display screen of a display unit and move the image for determination within the display region; a gazing point detector configured to detect a position of a gazing point of a test subject observing the display screen; a relation detector configured to detect relation information among a position of the image for determination on the display screen, a moving direction of the image for determination, and a moving direction of the gazing point; and a visual function detector configured to detect a visual function of the test subject based on the relation information.

A driving assistance apparatus includes: a driver identifying unit that identifies a driver driving a vehicle; an evaluation data obtaining unit that obtains, based on an identification result of the driver identifying unit, evaluation data on the driver's visual cognitive ability for an event that occurs when the driver is driving the vehicle; an event detecting unit that detects, on the basis of surrounding information data indicating a situation of the vehicle's surroundings, whether or not the event has occurred; and a processing unit that determines, in a case where the event has been detected and on the basis of the evaluation data on the driver, the evaluation data being related to the event, whether or not notification information is to be output from an output unit.

Driving assistance apparatus, driving assistance method, and medium

A visual performance examination device includes a display control unit that displays an indicator at each of a plurality of positions in a display screen of a display device; an image data obtaining unit that obtains an image data of eyes of a test subject, which are irradiated with a detection light emitted from a light source; a position calculating unit that, based on the image data, calculates a position data of corneal reflexes of the eyes when each of a plurality of indicators displayed at the positions in the display screen is shown; and an evaluating unit that, based on relative positions of the indicators and relative positions of the corneal reflexes, outputs evaluation data about visual performance of the test subject.

Visual performance examination device, visual performance examination method, and computer program

An evaluation device includes a display screen; a gaze point detection unit that detects a position of a gaze point of an examinee; an area setting unit that sets a specific area for a first indicator on the display screen; a determination unit that determines whether the gaze point is present in the specific area based on the position thereof; a display controller that displays a second indicator at a different position from the first indicator when determining that the gaze point is present in the specific area; a arithmetic unit that determines whether the examinee has recognized the second indicator; and an evaluation unit that evaluates a visual function of the examinee based on a determination result from the arithmetic unit. The display controller doesn't display the second indicator when determining that the gaze point isn't present in the specific area after the second indicator has been displayed.

Evaluation device, evaluation method, and non-transitory storage medium

An evaluation device includes: a display screen configured to displays images; a gaze point detection unit configured to detect a position of a gaze point of an examinee who observes the display screen; a display controller configured to display an indicator at an offset position having a predetermined relative positional relationship with the gaze point on the display screen based on a detection result of the position of the gaze point; an arithmetic unit configured to determine whether the examinee has recognized the indicator; and an evaluation unit configured to evaluate a visual function of the examinee based on a determination result from the arithmetic unit, wherein the arithmetic unit is further configured to determine that the examinee has recognized the indicator when the gaze point moves toward the indicator and thus the offset position is located outside the display screen.

A visual line detection apparatus includes a light source, a position detection unit configured to detect positions of pupil centers and positions of corneal reflection centers, a curvature radius calculation unit configured to calculate corneal curvature radii from a position of the light source and the positions of the corneal reflection centers, a viewpoint detection unit configured to detect viewpoints from the positions of the pupil centers and the corneal curvature radii, an extraction unit configured to extract pupil parameters indicating sizes of the pupils of the right and left respective eyeballs from the image of the eyeballs, and a correction unit configured to correct the viewpoint of the left eyeball and the viewpoint of the right eyeball on the basis of the pupil parameters and calculate a synthesized viewpoint.

Visual line detection apparatus and visual line detection method

A visual performance examination device includes an image data obtaining unit that obtains image data of the right eye and image data of the left eye of a test subject who is irradiated with a detection light emitted from a light source; a position calculating unit that, based on the image data of the right eye, calculates first-type relative position data indicating the relative position between the pupil and the corneal reflex of the right eye, and, based on the image data of the left eye, calculates second-type relative position data indicating the relative position between the pupil and the corneal reflex of the left eye; and an evaluating unit that, based on the first-type relative position data and the second-type relative position data, outputs evaluation data about the visual performance of the test subject.

A line-of-sight detection device includes an image data acquisition unit that acquires image data of a face of a subject irradiated with detection light emitted from at least one light source, a line-of-sight detection unit that detects a line of sight of the subject based on the image data, an image processing unit that performs image processing on the image data to generate a feature image of the face and an eyeglasses reflection image indicating a reflection image of the at least one light source on eyeglasses worn on the face, and a display controller that causes a display device to display the feature image and the eyeglasses reflection image in a different display form in a composite image in which the feature image and the eyeglasses reflection image are combined.

Line-of-sight detection device and method for detecting line of sight

A diagnosis assisting apparatus includes a display, an imaging unit configured to image a subject, a line of sight detecting unit configured to detect a line of sight direction of the subject from a picked-up image imaged by the imaging unit, a point of view detecting unit configured to detect a point of view of the subject in a display region of the display based on the line of sight direction, and an output controller configured to display a diagnostic image including a natural image and a geometrical image, and the point of view detecting unit detects the point of view of the subject in a case where the diagnostic image is displayed.

Diagnosis assisting apparatus and method for assisting diagnosis

A corneal reflex position detection device includes a pupil detecting unit that detects the center position of the pupil from an image of an eye of a test subject; and a corneal reflex detecting unit that detects the corneal reflex area from the image. The corneal reflex detecting unit enlarges, in a stepwise manner, a detection target area with reference to the center position of the pupil, to detect whether or not a high-luminance area having the luminance to be equal to or greater than a luminance threshold value is present in the image; and, if the high-luminance area is detected, determines that the high-luminance area represents the corneal reflex area.

Corneal reflex position detection device, eye-gaze tracking device, and corneal reflex position detection method

A gaze detection apparatus includes a light source configured to irradiate an eyeball of a subject with detection light, a position detection unit configured to detect positions of pupil centers indicating centers of pupils of right and left respective eyeballs and positions of corneal reflection centers indicating centers of corneal reflexes of the right and left respective eyeballs from an image of the eyeball irradiated with the detection light, a curvature radius calculation unit configured to calculate corneal curvature radii of the right and left respective eyeballs from a position of the light source and the positions of the corneal reflection centers, a gaze detection unit configured to detect gaze directions of the right and left respective eyeballs from the positions of the pupil centers and the corneal curvature radii, a viewpoint detection unit, an output control unit, and a determination unit.

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Yokohama, Japan

Shuji Hakoshima