Information Recognition Method and Apparatus

• US 20150120301A1
• Filed: 12/30/2014
• Published: 04/30/2015
• Est. Priority Date: 01/29/2013
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: Liang, Junbin, Jiang, Hongrui, Wang, Xiyong, Zheng, Weijun, Zhou, Junyang
• Granted Patent: US 9,390,711 B2
• Time in Patent Office: Days
• US Class Current: 704/251
• CPC Class Codes: G10L 15/08 Speech classification or search
• CPC Class Codes: G10L 15/10 using distance or distortion measures between unknown speech and reference templates
• CPC Class Codes: G10L 15/19 Grammatical context, e.g. disambiguation of the recognition hypotheses based on word sequence rules
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 17/22 Interactive procedures; Man-machine interfaces
• CPC Class Codes: G10L 2015/088 Word spotting
• CPC Class Codes: G10L 2015/223 Execution procedure of a spoken command

Abstract

An information recognition method and apparatus are provided. The method includes receiving, by a terminal, voice information, extracting a voice feature from the voice information, performing matching calculation on the voice feature and a phoneme string corresponding to each candidate text in multiple candidate texts to obtain a recognition result, where the recognition result includes at least one command word and a label corresponding to the at least one command word, and recognizing, according to the label corresponding to the at least one command word, an operation instruction corresponding to the voice information. A terminal recognizes text information, which is corresponding to voice information input by a user, as an operation instruction.

Claims

1. An information recognition method, comprising:

receiving voice information;

extracting a voice feature from the voice information;

performing a matching calculation on the voice feature and a phoneme string corresponding to each candidate text in multiple candidate texts to obtain a recognition result, wherein the recognition result comprises at least one command word and a label corresponding to the at least one command word; and

recognizing, according to the label corresponding to the at least one command word, an operation instruction corresponding to the voice information.

2. The information recognition method according to claim 1, wherein the performing the matching calculation comprises:

performing a phoneme distance calculation on the voice feature and the phoneme string corresponding to each candidate text in the multiple candidate texts to obtain a distance value; and

selecting a candidate text, which is corresponding to a phoneme string with a smallest distance value from the voice feature, as the recognition result.

3. The information recognition method according to claim 1, wherein each command word in the at least one command word is identified by one label, wherein the recognizing the operation instruction comprises recognizing, according to a combination of at least one label corresponding to the at least one command word in the at least one command word, the operation instruction corresponding to the voice information.

4. The information recognition method according to claim 1, before the receiving voice information and the extracting the voice feature, the method further comprises selecting, according to a recognition grammar network, multiple command words from multiple command word-slots to generate the multiple candidate texts.

5. The information recognition method according to claim 3, wherein the recognizing the operation instruction corresponding to the voice information comprises combining a label corresponding to each command word in the at least one command word in the recognition result and querying, in a local database or a network server, an operation instruction corresponding to the combination of the label.

6. A terminal comprising:

a network interface;

a processor;

a memory; and

a system bus configured to connect the network interface, the processor, and the memory,

wherein the memory is configured to store a computer program, and

wherein the processor is configured to run the computer program and configured to;

receive voice information and extract a voice feature from the voice information;

perform a matching calculation on the voice feature and a phoneme string corresponding to each candidate text in multiple candidate texts to obtain a recognition result, wherein the recognition result comprises at least one command word and a label corresponding to the at least one command word; and

recognize, according to the label corresponding to the at least one command word, an operation instruction corresponding to the voice information.

7. The terminal according to claim 6, wherein to perform the matching calculation the processor is configured to:

perform phoneme distance calculation on the voice feature and the phoneme string corresponding to each candidate text in the multiple candidate texts to obtain a distance value; and

select a candidate text, which is corresponding to a phoneme string with a smallest distance value from the voice feature, as the recognition result.

8. The terminal according to claim 6, wherein each command word in the at least one command word is identified by one label, and wherein to recognize the operation instruction corresponding to the voice information the processor is configured to recognize, according to a combination of at least one label corresponding to the at least one command word in the at least one command word, the operation instruction corresponding to the voice information.

9. The terminal according to claim 6, wherein the processor is configured to select, according to a recognition grammar network, multiple command words from multiple command word-slots to generate the multiple candidate texts.

10. The terminal according to claim 8, wherein the processor is configured to combine a label corresponding to each command word in the at least one command word in the recognition result and query, in a local database or a network server, an operation instruction corresponding to the combination of the label.

11. A computer program product comprising a readable storage medium storing program code thereon for use by a terminal, the program code comprising instructions for:

receiving voice information;

extracting a voice feature from the voice information;

performing matching calculation on the voice feature and a phoneme string corresponding to each candidate text in multiple candidate texts to obtain a recognition result, wherein the recognition result comprises at least one command word and a label corresponding to the at least one command word; and

recognizing, according to the label corresponding to the at least one command word, an operation instruction corresponding to the voice information.