An input method based on visual recognition, performed at a processor, includes: obtaining frames of gesture images; recognizing a size and a position of a hand feature in each frame; determining whether a variation amount in the size of the hand feature in the frame as compared to a preset calibration size is less than a preset threshold value; causing a position of the hand feature in the frame to be stored as a handwriting point; obtaining at least one stroke trace, according to handwriting points stored, each including handwriting points stored in sequence according to positions of hand features in at least two consecutive frames; and recognizing the at least one stroke trace and obtaining a target object corresponding to the at least one stroke trace.

There is provided an optical display system, including a light source, a control unit, and an array of at least two pixels, each of the pixels being a juxtaposed double grating element, comprising a first grating and a second grating spaced apart at a constant distance from each other, each of the two gratings having at least two edges, at least one sequence of a plurality of lines and apertures, the spacing between the lines gradually changing over the aperture of the gratings, the first grating diffracting a light wave from the light source towards the second grating, the light wave further diffracted by the second grating as an output light wave in a given direction, wherein for each of the pixels the direction of the output light wave from the second grating is separately, dynamically and externally controlled by the control unit.

A method for presenting an information, an electronic device, and a storage medium are provided, which relate to a field of data processing technology, and in particular to a field of intelligent search. The method includes: searching in a client to obtain a prompt information matched with a search content indicated by a first search request, in response to the first search request; presenting the prompt information in response to determining that the prompt information is obtained by searching in the client; and transmitting to a server a second search request for searching for the prompt information matched with the search content, in response to determining that the prompt information is not obtained by searching in the client.

A character input device according to one or more embodiments may include a candidate retrieval unit configured to retrieve conversion candidates for an input character string that is input, and a sequence determination unit configured to determine a sequence of the conversion candidates. The sequence determination unit dynamically changes a parameter used to determine the sequence of the conversion candidates.

Methods, systems, and computer-readable media related to a technique for providing handwriting input functionality on a user device. A handwriting recognition module is trained to have a repertoire comprising multiple non-overlapping scripts and capable of recognizing tens of thousands of characters using a single handwriting recognition model. The handwriting input module provides real-time, stroke-order and stroke-direction independent handwriting recognition for multi-character handwriting input. In particular, real-time, stroke-order and stroke-direction independent handwriting recognition is provided for multi-character, or sentence level Chinese handwriting recognition. User interfaces for providing the handwriting input functionality are also disclosed.

An aspect of the present disclosure provides for determining characters inputted. In an embodiment, a key activated among one or more keys of a keyboard and a sensor activated among one or more sensors associated with one or more fingers are identified. An element or a special function corresponding to the key activated and an element or a special function corresponding to the sensor activated are determined. A character is determined based on the element or the special function corresponding to the key activated and the element or the special function corresponding to the sensor activated. A first set of elements of an Indic language and a first set of special functions are assigned to the one or more keys of the keyboard, and a second set of elements of the Indic language and a second set of special functions are assigned to the one or more sensors.

A display apparatus displays handwritten data that is input with an inputter. The display apparatus includes processing circuitry; and a memory storing computer-executable instructions that cause the processing circuitry to convert the handwritten data into a character string; and conceal the character string generated by converting the handwritten data, in response to determining that a first time has elapsed after the character string is displayed.

A display system includes a display device, and an input device. The input device operates the display device, having a movement detection unit that include a sensor which detects a first movement that is circumferential around an axis and a second movement that is perpendicular the axis. The display device includes a first area in which characters are arranged and second area in which character string is displayed. A character that configures of the character string is selected from the first area according to the first movement and the second movement.

A Chinese character Pinyin input method and apparatus are disclosed. The method includes displaying on a human-machine interaction interface (HMI) initial keys representing all initials and simple final keys representing all simple finals. The method further includes, in response to an operation with respect to a simple final, displaying on the HMI auxiliary keys corresponding to the simple final, wherein various combinations of the simple final and symbols represented by the auxiliary keys respectively form compound finals starting with the simple final. The disclosed method and apparatus are especially applicable to inputting Chinese characters on a smart device touchscreen.

A method, system and computer program product are provided for implementing an interface for rapid ground truth binning. A set of documents are received wherein each document has at least one entity in a set of entities. A user interface is provided for each received document allowing a user to view passages and select options related to confirming or denying an equivalence between the entity in the received document and an output document entity bin including the entity. Responsive to the user utilizing the user interface and confirming the equivalence, combining the received document with the output document entity bin with reference to the entity.