2. The command recognition device according to claim 1 , wherein the image analysis unit calculates a feature quantity of an object from the image information, and wherein the phrase confidence degree calculating unit calculates an degree of image confidence representing the confidence that the object having the feature quantity is an object of the phrase information as the degree of phrase confidence.
2. The command recognition device according to claim 1 , wherein the image analysis unit calculates a feature quantity of an object from the image information, and wherein the phrase confidence degree calculating unit calculates an degree of image confidence representing the confidence that the object having the feature quantity is an object of the phrase information as the degree of phrase confidence. 3. The command recognition device according to claim 2 , wherein the motion control instructing unit determines whether the command of the word sequence information should be executed based on the command estimation value which is calculated using the degree of speech confidence, the degree of image confidence, and the degree of motion confidence.