Patent ID: 8547416
Filing Date: 2013-10-01
Classification: G06K,H04N

Abstract:
1. A signal processing apparatus processing a video signal and an audio signal in synchronization with the video signal, the signal processing apparatus comprising: generating means for generating information indicating a probability of a certain subject appearing in an image on the basis of the video signal that is input, wherein the probability comprises a measure of the likelihood that the certain subject appears in the image; determining means for determining whether the certain subject appears in the image on the basis of the information generated by the generating means; directional characteristic varying means for, if the determining means determines that the certain subject appears in the image, varying a directional characteristic of the audio signal so as to increase the level of the audio signal collected from the direction of the subject and/or to decrease the levels of the audio signals collected from directions other than the direction of the subject; and frequency characteristic varying means for, if the determining means determines that the certain subject appears in the image, varying a frequency characteristic of the audio signal so as to increase the level of the frequency band including a sound emitted from the subject and/or to decrease the levels of frequency bands other than the frequency band including the sound emitted from the subject, wherein the generating means includes: wherein the correlation coefficient calculated by the calculating means is generated as the information indicating the probability of the certain subject appearing in the image.