A sound filtering system and sound filtering method based on image analysis
A technology for sound filtering and image analysis, applied in image communication, voice analysis, closed-circuit television systems, etc., to solve problems such as unavailability of recordings and excessive surrounding noise in surveillance video
Active Publication Date: 2021-09-07
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. A sound filtering system based on image analysis includes the following functional modules: an array microphone module (1): used to act as a variable-directional microphone, receiving The sound direction calculation module is controlled to monitor the sound in the specified direction, and the filtered sound is output to the sound collection model (2); and the sound gain adjustment module (2), the sound direction calculation module (3), the event position prediction module (4), and the personnel Detection module (5), data synchronization module (6), data recording module (7), panoramic camera module (8); the present invention adopts the above technical scheme, confirms the event occurrence orientation through the detection of images, and controls the microphone array receiving area, thereby Suppress sounds and noise from other directions, realize audio collection and denoising of video surveillance cameras, and obtain clearer audio records of events.
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