35 results about "Letter recognition" patented technology

Disclosed is a letter-recognition apparatus and method for recognizing a language letter inputted in a pen drag direction without a special operation for switching a language mode in a terminal equipped with a touch screen. A user interface having a plurality of letter input areas displayed on the touch screen is provided. The letter input areas have first language consonant letters that are divided into a plurality of pairs of basic consonant letters and extended consonant letters of a first language assigned thereto. The basic consonant letters and the extended consonant letters of the first language are mapped and assigned to basic consonant letters and extended consonant letters of a second language. One of the consonant letters assigned to a letter input area corresponding to a touch pen input according to a type of the touch pen input is selected when the touch pen input is present on the letter input areas, such that a display unit displays the selected consonant letter. When the touch pen input is present on the letter input areas and the touch pen input type is a pen drag in a vowel letter direction, the display unit displays a previously assigned vowel letter of the first language according to the vowel letter direction.

The invention provides a method for positioning mobile robots on the basis of digital letter recognition. The method includes manufacturing identification pictures and setting number identification for acquiring coordinate information and angle identification for acquiring direction and angle information on the identification pictures; placing working regions of the robots in world coordinate systems, laying a plurality of identification pictures in each working region and creating number identification-coordinate comparison tables; recognizing the number identification when the identificationpictures are photographed in robot advancing procedures, comparing the number identification to the number identification-coordinate comparison tables and acquiring the coordinate information corresponding to the current number identification; recognizing the angle identification and acquiring current advancing directions of the robots and deviation angles relative to the world coordinate systems. The method has the advantages that identification, which contains the coordinate information, in the identification pictures is digital letters, accordingly, sufficient number information can be acquired by the aid of the method and is easy and convenient to read, and information can be corrected read without alignment regardless of scanning at optional angles.

The invention relates to an English word learning machine which comprises an enclosure, a back key, a start key, a forward key, a USB (Universal Serial Bus) interface, a liquid crystal display screen, a sound production hole, a letter storage lattice, a letter placement groove, a groove and a letter sensing identifier. By self-assembly, assembled letters are inserted into the letter placement groove, the letter sensing identifier identifies the series of letters into a corresponding word, a picture associated with the word is displayed on the liquid crystal display screen, then teaching materials on the word are attached, and pronunciation of the word is played; a child is enabled to start from manipulative ability, spell the word, view video explanation and finally hear the pronunciation of the word by ears, so that the memory requirements on the three aspects of hearing, vision and touch sense are met, and the child is effectively helped to keep the word in mind.

The application belongs to the technical field of character recognition, and particularly relates to a recognition method, system and electronic equipment for Uyghur handwriting letters. The recognition method for Uyghur handwriting letters comprises the following steps of: step a, collecting / reading / reading an original handwriting sample of Uyghur letters; step b, preprocessing the original handwriting sample, and converting the original handwriting sample into a binary image; and step c, inputting the binary image into a convolutional neural network for classification training and testing to obtain an recognition result of the original handwriting sample. According to the recognition method, system and electronic equipment of Uyghur handwriting letters, the performance of the networkmodel is effectively improved, and the identification accuracy is high.

The invention provides a system and method for Tibetan input with combination of hand writing and keys. The system provided by the invention is composed of five parts including a Tibetan track collection module, a Tibetan hand writing basic letter recognition module, an image display module, a key receiving module and a Tibetan letter combined module. The method provided by the invention comprises the steps that (1) a database is established; (2) hand writing Tibetan basic letters are input; (3) the hand wiring Tibetan basic letters are recognized; (4) images of candidate Tibetan basic letters are displayed; (5) Tibetan basic letters are selected; (6) the selected images of the Tibetan basic letters are displayed; (7) unicode codes corresponding to the Tibetan basic letters are stored; (8) Tibetan additional letters are input; (9) unicode codes corresponding to the Tibetan additional letters are stored; and (10) Tibetan syllables are output. According to the invention, the Tibetan syllables could be input efficiently, conveniently, naturally and accurately on a mobile terminal.

The invention discloses a handwritten letter recognizing method and system based on WiFi. The method includes the following steps of A1, collecting WiFi signals for reflecting environment state changes through a data collecting module when a user writes handwritten letters between an AP and an STP; A2, extracting channel state information from the WiFi signals; A3, conducting phase unwinding and phase correcting operations on the channel state information; A4, inputting data into a convolutional neural network, wherein the convolutional neural network comprises an input layer, an Inception module, a depth connecting layer, a batch standardization layer, a ReLU layer, an average pooling layer, a dropout layer, a full-connection layer, a softmax layer and a classification layer, and the network is trained through a momentum gradient descending method; A5, applying a trained convolutional neural network model to handwritten letter recognizing. The limitation that a wearable device needs to be carried during traditional action recognition and the risk of privacy leakage are overcome. Action recognition is conducted by means of the improved convolutional neural network, and the recognizing precision is improved.

According to the human body gesture letter recognition method and device, a computer device and a storage medium, character input is conducted by adopting a brand-new recognition mode of combining motion information and image information according to sign language habits of a sign language user, the standard sign language action standard is met, operation is easy, and use is convenient.

The invention discloses a handwritten letter recognition method based on a lightweight deep learning network, which comprises the following steps of: processing channel state information amplitude data by adopting a signal processing technology, correcting phase data by adopting a linear change method, intercepting an effective action interval on amplitude and phase signals by using a short-time energy algorithm combined with a sliding window, and identifying the handwritten letters according to the effective action interval. A handwritten alphabet dataset combining amplitude and phase signals is established. And building a MobileNetV2 deep learning network, inputting the handwritten letter data set into a MobileNetV2 deep learning network model subjected to transfer learning for training, and obtaining a trained handwritten letter gesture classification model. The gesture classification model can be arranged on an embedded device for classification tasks. The method has the advantages of being high in accuracy, short in training time, low in equipment performance requirement and the like.

The invention discloses a graph editing distance solving method for letter recognition. According to the method, based on an existing SFBP algorithm framework, the number of elements meeting a constraint condition in each row and each column is counted through item-by-item search comparison of the elements of a cost matrix framework; and by comparing the ratio of the number of the elements meetingthe constraint condition in each row and each column to the elements in each row and each column, a corresponding number of rows and columns of cost values is added to the SFBP cost matrix frameworkto change the cost matrix framework, and therefore the purpose of optimization is achieved. When the optimization objective is achieved, a solving algorithm can be used to perform solving calculationon a cost matrix, therefore, the limitation of the constraint condition on algorithm usage is avoided, and the algorithm is better applied to the letter recognition field.

The invention is applicable to the technical field of computers, and provides a navigation method, a device, a navigation device and a storage medium based on picture identification. The method comprises the following steps: performing a letter recognition on a place picture by receiving the place picture input by a user; obtaining geographical location information associated with the place picture according to the identified letters; setting the geographical location information as a navigation target location; obtaining a path between the current position of the user and the navigation target position; performing a navigation for the user according to a path from the current location to the navigation target location; determining the geographical position associated with the place picture to perform the navigation by identifying the letters in the place picture, so that the calculation amount of a picture navigation is reduced, thereby improving the response efficiency of the navigation while ensuring the identification accuracy of the geographical position.

The embodiment of the invention discloses a contact person searching method and device, and a terminal, relates to the technical field of communication, and can reduce the time consumed by elderly users and crowds having relatively low character and letter recognition capability in a contact person searching process. The method in the embodiment of the invention comprises the following steps of: receiving indication information input by a user, wherein the indication information is used for representing an area selected by the user; determining a character corresponding to the area selected by the user; and displaying contact person information associated with the character and a call record generated within a certain time and associated with the character, wherein a certain time is a period that the current time is used as the cut-off time. The contact person searching method and device, and the terminal disclosed by the invention are suitable for a contact person searching process.

Disclosed herein are an alphabet input device and an alphabet recognition system in a small-sized keypad. The device includes: a first keypad part comprising a plurality of buttons each of which is assigned with a symbol extracted from strokes of alphabet characters so that the alphabet characters be input by one of the buttons or a combination of two or more of the buttons; and a second keypad part comprising one or more buttons each assigned with an alphabet character having a high usage frequency. With the device, alphabet characters can be inputted in a simper and more efficient manner.

The invention discloses a personnel identity authentication and handwritten letter recognition method based on a Wi-Fi signal. In order to solve the problems that handwriting recognition needs special equipment and is inconvenient, and conventional unbound handwriting recognition equipment is low in precision and low in recognition speed, the equipment is used in advance for collecting channel state information (CSI) when different persons write any letter in the air at a fixed position, and uploading the CSI, establishing a database, and then classifying the CSI; and then learning is carried out by using a convolutional neural network, amplitude information of CSI received by WIFI equipment is decomposed during authentication and recognition, a CSI image is constructed and then is substituted into a recognition function obtained by learning of the convolutional neural network, and dual recognition of personnel identity and handwritten letters is carried out.

The invention discloses a Manchu recognition method and system, and the method and system can achieve the quick recognition of a part of letters in a text image, so that the Manchu stored in the database corresponding to the Manchu composed of letters can be quickly and accurately positioned according to the recognized letters, and characters and serial numbers of the letters corresponding to allthe letter standard images marked as the associated letters in the database are output. All similar letters are sequentially recognized on the Manchu image through the sliding window, the letters arelocally recognized according to the sliding window, and the local adjustment image is compared according to the letter standard image, so that the operation complexity is reduced, the recognition precision is improved, part of letter areas can be indicated with high accuracy, and local identification ensures letter identification reliability and reduces false detection identification probability.

The invention discloses a license plate letter recognition method, system and device and a storage medium, and the method comprises the steps: obtaining a license plate image, binarizing the license plate image to acquire a binarized image; performing corrosion expansion on the binarized image to obtain a first image after corrosion expansion processing; obtaining a letter image from the first image, performing feature extraction on the letter image, and matching the extracted features with a feature table to obtain a letter recognition result; and performing feature extraction on the letter image, including performing multiple times of linear scanning on the letter image from multiple scanning positions, and obtaining the number of times of color mutation occurring in each linear scanningprocess as the feature of the letter image. In the character recognition process, only the image data at multiple positions need to be counted, the operand is greatly reduced, the recognition rate isincreased, the occupation of operation resources is reduced, and the invention can be widely applied to the field of letter recognition.