DIRECTIONALITY CONTROL SYSTEM, CALIBRATION METHOD, HORIZONTAL DEVIATION ANGLE COMPUTATION METHOD, AND DIRECTIONALITY CONTROL METHOD

• Main Authors: Hirabara, Takashi, Tokuda, Toshimichi, Matsuo, Shojiro, Fukuda, Teppei, Matsumoto, Hiroyuki, Hayashi, Kazunori, Maki, Tadashi, Izumi, Akitoshi, Shinozaki, Kosuke, Shigenaga, Shinichi, Tsuji, Hisashi, SAWA, Hirotaka, Watanabe, Shuichi, Yoshikuni, Shintaro
• Format: Patent
• Language: English
• Published: 07.06.2018
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DEAF-AID SETS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; MEASURING; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PUBLIC ADDRESS SYSTEMS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; STEREOPHONIC SYSTEMS; TESTING

A directionality control system includes: a camera; a microphone provided as a separate body from the camera; a display that displays video data captured by the camera; and a processor that computes a sound collection direction, which is directed from the microphone toward a sound position corresponding to a designated position in the video data. The processor computes the sound collection direction by using parameters including: a first height of the camera from a reference surface, a second height of the microphone from the reference surface, a third height of a computation reference point from the reference surface, the computation reference point being positioned in the sound collection direction at a position different from the sound position, a direction which is directed from the camera toward the sound position, and a fourth height of the sound position from the reference surface.