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Video coding system and coding method based on acceleration sensor for body enforcement recorder

A technology of acceleration sensor and law enforcement recorder, which is applied in the field of video coding of law enforcement recorder, can solve the problems of image drastic change, excessive shaking, image quality degradation, etc., and achieve the effect of improving image quality

Active Publication Date: 2020-10-16
HANGZHOU XUJIAN SCI & TECH CO LTD
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Problems solved by technology

The stable bandwidth of mobile 4G real-time video upload is still limited, and the stable bit stream is basically about 1mbps. When the user moves quickly, the body camera shakes too much due to hanging on the chest, which causes a huge change in the image. The existing video I group frame compression effect is not good. , the image quality drops sharply under the limited bandwidth of 4G backhaul

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  • Video coding system and coding method based on acceleration sensor for body enforcement recorder

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Embodiment Construction

[0039]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.

[0040] Such as figure 1 As shown, the present invention provides a video encoding system based on an acceleration sensor for a law enforcement recorder, including a motion sensor module (1), a gait recognition module (2), an adaptive adjustment module (3), a camera module (4), an exposure module (5), frame adjustment module (6), video encoding module (7), network sending module (8), recorder service module (9);

[0041] Motion sensor module (1): the motion sen...

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Abstract

The invention provides a video encoding system and encoding method based on an acceleration sensor for a law enforcement recorder. A video encoding system for a law enforcement recorder based on an acceleration sensor includes a motion sensor module (1), a gait recognition module (2), and an adaptive Adjustment module (3), camera module (4), exposure module (5), frame adjustment module (6), video encoding module (7), network transmission module (8), recorder service module (9); using the present invention When the law enforcement officers or workers are detected to be moving quickly, the body camera shakes too much on the chest, which causes a huge change in the image. By switching to the full I-frame module and controlling the exposure time, the inter-frame compression effect of the image drastic change is not high and the image is blurred Motion blur caused by long exposure times ultimately improves image quality for fast-moving law enforcement officers or workers.

Description

technical field [0001] The invention relates to the technical field of video encoding of law enforcement recorders, in particular to a video encoding system and encoding method of law enforcement recorders based on acceleration sensors. Background technique [0002] The body-worn recorder is a chest-mounted video recorder that completely records the entire process of law enforcement or operations. With the development of mobile 4G, the real-time video transmission of the body-worn recorder for remote command has become an important usage method. The stable bandwidth of mobile 4G real-time video upload is still limited, and the stable bit stream is basically about 1mbps. When the user moves quickly, the body camera shakes too much due to hanging on the chest, which causes a huge change in the image. The existing video I group frame compression effect is not good. , the image quality drops sharply under the limited bandwidth of 4G backhaul. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2343H04N5/235H04N21/643H04N21/647
CPCH04N21/2343H04N21/64792H04N21/643H04N23/73
Inventor 邬文达陈尚武金国庆江文靖邬奇龙
Owner HANGZHOU XUJIAN SCI & TECH CO LTD
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