초록 ▼

A continuous sign-language recognition apparatus and input apparatus which employ expressions of template patterns of sign-language word as well as the template patterns of sign-language word to realize high speed and highly accurate sign-language recognition. Each of component patterns constituting

A continuous sign-language recognition apparatus and input apparatus which employ expressions of template patterns of sign-language word as well as the template patterns of sign-language word to realize high speed and highly accurate sign-language recognition. Each of component patterns constituting a template pattern of a sign-language word is expressed by a feature vector representing the pattern when the pattern is a static pattern, or by a time-series pattern of a feature vector when the pattern is a dynamic pattern. Also, using the template patterns of sign-language word, different matching methods are applied to the static and dynamic patterns for recognizing each component pattern, and the respective results are integrated on the basis of a temporal overlap of the respective component patterns to continuously recognize sign-language words.

대표청구항 ▼

A continuous sign-language recognition apparatus comprising: sign-language input means for converting a series of sign-language words into sign-language patterns which are time-series patterns of feature vectors and inputting said sign-language patterns; a dictionary of template pattern of sign-lang

A continuous sign-language recognition apparatus comprising: sign-language input means for converting a series of sign-language words into sign-language patterns which are time-series patterns of feature vectors and inputting said sign-language patterns; a dictionary of template pattern of sign-language word for storing template patterns of sign-language word; and sign-language word recognition means coupled to said sign-language input means and said dictionary for matching said sign-language patterns with said template patterns of sign-language word to recognize sign-language words expressed in said sign-language patterns, each of said template patterns of sign-language word being expressed as a feature vector for the sign-language word having a static pattern, and as a time-series pattern of a feature vector for the sign-language word having a dynamic pattern; each of said sign-language patterns and each of said template patterns of sign-language word being expressed as a combination of a plurality of component patterns; and each of said template patterns of sign-language word being expressed as a feature vector for the component pattern having a static pattern, and as a time-series pattern of a feature vector for the component pattern having a dynamic pattern; said sign-language word recognition means includes matching portions of component pattern for matching the respective component patterns constituting one of said sign-language patterns with the component patterns constituting said template patterns of sign-language word, and a detection portion of sign-language word for integrating the matching results of said matching portions of component pattern to detect a sign-language word; wherein each of said matching portions of component pattern includes: selection means for determining whether each of the component patterns is static or dynamic with reference to said dictionary of template pattern of sign-language word; static pattern detection means for matching one of said sign-language patterns with said template patterns of sign-language word, in response to a component pattern which is a static pattern, and outputting pattern detected positions; and dynamic pattern detection means for matching one of said sign-language patterns with said template patterns of sign-language word, in response to a component pattern which is a dynamic pattern, and outputting pattern detected positions.