Hitachi, Ltd.

Hiroshi Sakou

Hirohiko Sagawa

Masahiro Abe

Kiyoshi Inoue

Akira Ichikawa

Takanori Shimura

Yuji Toda

Kiyoshi Arai

Indurkhya Nitin

In continuous sign language recognition, reference sign language patterns of good quality are generated. Continuous sign language patterns and reference sign language patterns are efficiently compressed. The compressed continuous sign language patterns are sequentially and directly matched with the compressed reference sign language patterns to recognize the sign language at high speed and with high precision. A reference sign pattern generating unit generates a reference sign language pattern by normalizing sample patterns while taking into consideration of their nonlinear compression/expansion and by calculating an average of the sample patterns. A continuous sign language recognition unit recognizes a continuous sign language at high speed by sequentially matching the continuous sign language of time sequential patterns with reference sign language patterns while allowing nonlinear expansion and compression in the time domain. A sign language translation system is provided in which a sign language as well as the facial expression or emotion of a sign language user is recognized and converted into a spoken language with emotion, and transferred in the form of texts, voices, sign languages of another type to a particular partner among a plurality of unknown system users.

Sign recognition apparatus and method and sign translation system using

In a sign-language learning system, the data of sign-language desired by a learner can be outputted quickly and accurately and, moreover, in the display method matching the requirements of individual learners, and the individual learners can easily make additional registration. The sign-language data are stored in a sign-language dictionary, and desired sign-language data are searched on the basis of an entry word or contents by a dictionary search device. The searched sign-language data are displayed in a display output device in accordance with a requirement of a learner by image synthesis. The sign-language data are registered by a dictionary registration device.

Sign language learning system and method

A sign language translation system and method that not only recognizes words of a sign language but also supplements omitted words between the words of the sign language, to thereby generate a spoken language. The sign language translation system has an input unit for inputting at least the motion of hands, a language generating unit responsive to the inputted motion of hands for recognizing the words corresponding to the motion of hands and generating a spoken language using the relationship between the recognized words, and an output unit for outputting the generated spoken language. The sign language translation system and method can translate a sign language into an easy-to-understand spoken language.

Sign language translation system and method that includes analysis of

Growing community of inventors

Dublin, Ireland

Hiroshi Sakou