Abstract: A processor detects a direction of a line of sight from an image picked up by a camera, refers to position information of an item stored in a memory, and identifies one or a plurality of items that correspond to the detected direction of the line of sight. The display displays the one or the plurality of items identified by the processor, in such a manner that such an item or items can be selected as an item candidate for a checkout target.

Abstract: A conversion device includes an input unit configured to input position information of a user's line of sight on a screen; an acquiring unit configured to acquire, a character string included in a predetermined range from a position indicated by the position information, among character strings displayed on the screen; and a display control unit configured to display a list of character strings corresponding to readings including an input character as conversion candidates of the input character, among stored character strings, the list being displayed in response to the input character being input by the user. The display control unit increases a priority in a display order in the list for a character string that matches any of the acquired character strings, such that the priority is higher than that of a case where the character string does not match any of the character strings acquired by the acquiring unit.

Abstract: A read determining device includes: a similar portion identifying unit configured to identify a similar portion in a document which is similar to a portion in the document or a similar portion in a document which is similar to a portion in another document which is already read; and a determination unit that lowers a threshold value with which a document is determined to be read with respect to the document which includes more similar portions than those in another document which includes less similar portions and thereby determines whether or not the document is read, so that the determination accuracy is improved.

Abstract: An image processing apparatus including a detection unit configured to detect a face area and an eye area from images that are sequentially input; a motion vector calculation unit configured to calculate, between two of the images, a first motion vector in the face area and second motion vectors in a plurality of blocks obtained by dividing the eye area; a similarity calculation unit configured to calculate, for each pair of the images, a value relevant to a similarity between the first motion vector and each of the second motion vectors; and a determination unit configured to determine whether blinking has occurred based on the value relevant to the similarity.

Abstract: An eye-gaze-detection apparatus includes an image acquisition unit that acquires a face image of a user from an imaging apparatus, the face image being captured by the imaging apparatus; a feature-quantity extraction unit that extracts a feature quantity of the face image; an eye-gaze-calculation-determination unit that determines whether or not an eye-gaze calculation process is performed by referring to a rule database, based on the feature quantity extracted by the feature quantity extraction unit, the rule database storing a rule set associating a condition including the feature quantity of the face image with information indicating whether or not the eye gaze calculation process is performed; and an eye-gaze-calculation unit that performs the eye-gaze-calculation process for the user, based on the feature quantity of the face image acquired by the image acquisition unit, when the eye-gaze-calculation-determination unit determines that the eye-gaze-calculation process is performed.

Abstract: A conversion device includes an input unit configured to input position information of a user's line of sight on a screen; an acquiring unit configured to acquire, a character string included in a predetermined range from a position indicated by the position information, among character strings displayed on the screen; and a display control unit configured to display a list of character strings corresponding to readings including an input character as conversion candidates of the input character, among stored character strings, the list being displayed in response to the input character being input by the user. The display control unit increases a priority in a display order in the list for a character string that matches any of the acquired character strings, such that the priority is higher than that of a case where the character string does not match any of the character strings acquired by the acquiring unit.

Abstract: A read determining device includes: a similar portion identifying unit configured to identify a similar portion in a document which is similar to a portion in the document or a similar portion in a document which is similar to a portion in another document which is already read; and a determination unit that lowers a threshold value with which a document is determined to be read with respect to the document which includes more similar portions than those in another document which includes less similar portions and thereby determines whether or not the document is read, so that the determination accuracy is improved.

Abstract: An already-read determination apparatus includes a read time prediction unit configured to set predictive read time of a quoted portion in a document and predictive read time of a non-quoted portion in the document on the basis of an information quantity of the quoted portion and an information quantity of a non-quoted portion respectively, a reference time measuring unit configured to measure periods of reference time for which a user refers to the quoted portion and the non-quoted portion respectively, and a determining unit configured to determine that the document is read by the user when the predictive read time of each portion and the reference time satisfy predetermined conditions.

Abstract: An eye-gaze-detection apparatus includes an image acquisition unit that acquires a face image of a user from an imaging apparatus, the face image being captured by the imaging apparatus; a feature-quantity extraction unit that extracts a feature quantity of the face image; an eye-gaze-calculation-determination unit that determines whether or not an eye-gaze calculation process is performed by referring to a rule database, based on the feature quantity extracted by the feature quantity extraction unit, the rule database storing a rule set associating a condition including the feature quantity of the face image with information indicating whether or not the eye gaze calculation process is performed; and an eye-gaze-calculation unit that performs the eye-gaze-calculation process for the user, based on the feature quantity of the face image acquired by the image acquisition unit, when the eye-gaze-calculation-determination unit determines that the eye-gaze-calculation process is performed.

Abstract: An image processing apparatus including a detection unit configured to detect a face area and an eye area from images that are sequentially input; a motion vector calculation unit configured to calculate, between two of the images, a first motion vector in the face area and second motion vectors in a plurality of blocks obtained by dividing the eye area; a similarity calculation unit configured to calculate, for each pair of the images, a value relevant to a similarity between the first motion vector and each of the second motion vectors; and a determination unit configured to determine whether blinking has occurred based on the value relevant to the similarity.