APPARATUS AND METHOD FOR RECOGNIZING VOICE
First Claim
1. An apparatus for recognizing a voice, comprising:
- an input voice divider to divide an input voice into sentence component groups, each group including at least one word;
a word recognizer to recognize a word included in each group for each divided sentence component group;
a candidate word extractor to extract, from recognized words as a candidate word, a word that matches a sentence configuration word constituting a sentence; and
a sentence recognizer to perform sentence unit based voice recognition with respect to the input voice based on extracted candidate words.
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Abstract
The present invention includes a hierarchical search process. The hierarchical search process includes three steps. In a first step, a word boundary is determined using a recognition method of determining a following word dependent on a preceding word, and a word boundary detector. In a second step, word unit based recognition is performed in each area by dividing an input voice into a plurality of areas based on the determined word boundary. Finally, in a third step, a language model is applied to induce an optimal sentence recognition result with respect to a candidate word that is determined for each area. The present invention may improve the voice recognition performance, and particularly, the sentence unit based consecutive voice recognition performance.
22 Citations
14 Claims
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1. An apparatus for recognizing a voice, comprising:
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an input voice divider to divide an input voice into sentence component groups, each group including at least one word; a word recognizer to recognize a word included in each group for each divided sentence component group; a candidate word extractor to extract, from recognized words as a candidate word, a word that matches a sentence configuration word constituting a sentence; and a sentence recognizer to perform sentence unit based voice recognition with respect to the input voice based on extracted candidate words. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of recognizing a voice, comprising:
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an input voice dividing step of dividing an input voice into sentence component groups, each group including at least one word; a word recognizing step of recognizing a word included in each group for each divided sentence component group; a candidate word extraction step of extracting, from recognized words as a candidate word, a word that matches a sentence configuration word constituting a sentence; and a sentence recognizing step of performing sentence unit based voice recognition with respect to the input voice based on extracted candidate words. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification