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US 9,851,789 B2Granted
Information processing technique for eye gaze movements
AssigneeFujitsu Limited
InventorNaoko Hayashida
Life of this patent
Estimating the term…
Abstract
An information processing method relating to movement of eye positions includes: identifying, for each of plural users, transition of movement directions of an eye gaze of the user, from movement history of the eye gaze of the user on a display screen; and extracting a minor user among the plural users based on the transition of the movement directions of the eye gaze, which is identified for each of the plural users.
Claims5
An information processing apparatus, comprising:
- a memory;
- and
- a processor coupled to the memory and configured to execute:
- identifying, for each of a plurality of users, transition of movement directions of an eye gaze of the user, from movement history of the eye gaze of the user on a display screen;
- and
- extracting a minor user among the plurality of users based on the transition of the movement directions of the eye gaze, which is identified for each of the plurality of users, and
- wherein the identifying comprises:
- calculating, for each eye position and each axis direction, an accumulated movement amount from the eye position to an eye position for which transition of a direction is detected within a predetermined duration of time;
- determining, for each time period and each axis direction, whether the accumulated movement amount calculated for each eye position in the time period is within a predetermined range;
- calculating, for a time period and each axis direction, a reliability by dividing a number of first eye positions each of which is an eye position whose accumulated movement amount was determined to be within the predetermined range by a number of eye positions in the time period;
- locating, for each first eye position in each time period, a first rectangle that has, in each axis direction, an edge whose length is obtained by multiplying the reliability, which is calculated for the axis direction and is calculated for the time period, by an accumulated movement amount which is calculated for the axis direction and is calculated for the first eye position in the time period;
- and
- calculating, for a time period, at least one of or any combination of an area of a second rectangle that includes eye positions and the first rectangle in the time period or central coordinates of the second rectangle to identify the transition of the movement directions of the eye gaze.
10 more elements
A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process comprising:
- identifying, for each of a plurality of users, transition of movement directions of an eye gaze of the user, from movement history of the eye gaze of the user on a display screen;
- and
- extracting a minor user among the plurality of users based on the transition of the movement directions of the eye gaze, which is identified for each of the plurality of users, and
- wherein the identifying comprises:
- calculating, for each eye position and each axis direction, an accumulated movement amount from the eye position to an eye position for which transition of a direction is detected within a predetermined duration of time;
- determining, for each time period and each axis direction, whether the accumulated movement amount calculated for each eye position in the time period is within a predetermined range;
- calculating, for a time period and each axis direction, a reliability by dividing a number of first eye positions each of which is an eye position whose accumulated movement amount was determined to be within the predetermined range by a number of eye positions in the time period;
- locating, for each first eye position in each time period, a first rectangle that has, in each axis direction, an edge whose length is obtained by multiplying the reliability, which is calculated for the axis direction and is calculated for the time period, by an accumulated movement amount which is calculated for the axis direction and is calculated for the first eye position in the time period;
- and
- calculating, for a time period, at least one of or any combination of an area of a second rectangle that includes eye positions and the first rectangle in the time period or central coordinates of the second rectangle to identify the transition of the movement directions of the eye gaze.
7 more elements
An information processing method, comprising:
- identifying, by using a computer and for each of a plurality of users, transition of movement directions of an eye gaze of the user, from movement history of the eye gaze of the user on a display screen;
- and
- extracting, by using the computer, a minor user among the plurality of users based on the transition of the movement directions of the eye gaze, which is identified for each of the plurality of users, and
- wherein the identifying comprises:
- calculating, for each eye position and each axis direction, an accumulated movement amount from the eye position to an eye position for which transition of a direction is detected within a predetermined duration of time;
- determining, for each time period and each axis direction, whether the accumulated movement amount calculated for each eye position in the time period is within a predetermined range;
- calculating, for a time period and each axis direction, a reliability by dividing a number of first eye positions each of which is an eye position whose accumulated movement amount was determined to be within the predetermined range by a number of eye positions in the time period;
- locating, for each first eye position in each time period, a first rectangle that has, in each axis direction, an edge whose length is obtained by multiplying the reliability, which is calculated for the axis direction and is calculated for the time period, by an accumulated movement amount which is calculated for the axis direction and is calculated for the first eye position in the time period;
- and
- calculating, for a time period, at least one of or any combination of an area of a second rectangle that includes eye positions and the first rectangle in the time period or central coordinates of the second rectangle to identify the transition of the movement directions of the eye gaze.
7 more elements
Dependencies are inferred from the claim text.