Sound filtering system based on image analysis and sound filtering method thereof
A technology of sound filtering and image analysis, applied in voice analysis, image communication, closed-circuit television system, etc., can solve problems such as unavailable recording, excessive surrounding noise in surveillance video, etc., achieve clear audio recording, and realize audio acquisition and denoising Effect
Active Publication Date: 2020-03-27
HANGZHOU XUJIAN SCI & TECH CO LTD
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[0003] In order to solve the above technical problems, the present invention provides a sound filtering system and sound filtering method based on image analysis, which solves the problem of unusable recording caused by too much surrounding noise in the monitoring video
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] Such as figure 1 Shown: the present invention provides a kind of concrete embodiment of the sound filter system based on image analysis, comprises following functional module:
[0032] Array microphone module 1: used to act as a variable-directional microphone, receive the control of the sound azimuth calculation module, monitor the sound in the specified direction, and output the filtered sound to the sound collection model 2;
[0033] Sound gain adju...
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The invention discloses a sound filtering system based on image analysis and a sound filtering method thereof. The sound filtering system based on image analysis comprises the following functional modules: an array microphone module (1) used for accepting a variable-direction microphone, receiving control of a sound orientation calculation module to monitor sound in a specified direction, and outputting filtered sound to a sound acquisition model; and a sound gain adjustment module (2), the sound orientation calculation module (3), an event position prediction module (4), a personnel detectionmodule (5), a data synchronization module (6), a data recording module (7) and a panoramic camera module (8). By adopting the technical scheme, the event occurrence direction is confirmed through image detection, and the microphone array receiving area is controlled, so that sounds and noises in other directions are suppressed, audio acquisition and denoising of the video monitoring camera are realized, and clearer audio records of the event are obtained.
Description
technical field [0001] The invention relates to the technical field of sound filtering, in particular to a sound filtering system based on image analysis and a sound filtering method thereof. Background technique [0002] The sound recording of the existing video surveillance cameras is omni-directional recording. When recording the sound, it also records the surrounding noise. The noise of the sound is too loud, and the sound collection is poor. So this requires a method with better effect on sound collection and denoising of video surveillance cameras. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a sound filtering system and sound filtering method based on image analysis, which solves the problem of unusable recording caused by too much peripheral noise in the surveillance video. [0004] The present invention provides a sound filtering system based on image analysis, including the following functiona...
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IPC IPC(8): H04N5/04H04N5/232H04N5/76H04N7/18G01S5/20G06K9/00G06K9/46G10L21/003G10L21/0216G10L25/51
CPCH04N5/04H04N5/76H04N7/18G10L21/0216G10L21/003G10L25/51G01S5/20G10L2021/02166G06V40/10G06V10/56H04N23/698
Inventor 卢锡芹陈尚武金国庆吴宣辉冯超庭
Owner HANGZHOU XUJIAN SCI & TECH CO LTD