Event-based video compression technology

A technology for video condensing and events, applied in the field of smart cameras

Active Publication Date: 2020-07-07
HANGZHOU CLOSELI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem existing in the prior art that it is impossible to quickly previ

Method used

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Embodiment Construction

[0036] 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.

[0037] refer to figure 1 , an event-based video enrichment technique, comprising the following steps;

[0038] S1. Obtain code stream data; code stream data includes low-resolution video, high-definition images with intervals of several seconds, and high-definition moving target images;

[0039] S2, code stream data is transmitted to the buffer for temporary storage;

[0040] S3, event filtering, used for basic filtering of events; the steps of event filtering are;

[0041] The first step is to extract events from the buffer pool;

[0042] The second step is to set up the event filtering form, which has multiple event entries, which is used for the basic filtering...

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Abstract

The invention relates to the technical field of intelligent cameras, in particular to an event-based video compression technology. The event-based video compression technology comprises the followingsteps of: S1, acquiring code stream data; S2, transmitting the code stream data to a buffer region for temporary storage; S3, filtering events; S4, picking GOPs; S5, judging whether the GOPs enter a key interval section or not; S6, inserting a key interval segment rate mark or a non-key interval segment rate mark; S7, counting, specifically, overlapping and recording rate marks of the key intervalsection and the rate marks of the non-key interval sections one by one; S8, extracting a key frame; S9, backing up the key frame; S10, and carrying out lossless output. According to the event-based video compression technology, the events are filtered, the key interval section is extracted and key frames are extracted in sequence, each frame of data of the video data in the key interval section can be separately played in a lossless manner, so that the flow transmission of the video data can be reduced, the playing of the key data cannot be skipped while the top-speed experience of video playing is improved, and the event-based video compression technology is more suitable for wide popularization.

Description

technical field [0001] The invention relates to the technical field of smart cameras, in particular to an event-based video concentration technology. Background technique [0002] With the popularization of smart cameras in more and more families, people have higher playback and review requirements for historical video images recorded by cameras, such as wanting to quickly preview key video data captured by cameras in the past day or a few days (event), the normal frame-by-frame playback obviously cannot meet the user's requirements. At this time, a technical means is needed to give the user a quick preview of the historical picture without skipping the playback of key data. Contents of the invention [0003] The purpose of the present invention is to solve the problem existing in the prior art that it is impossible to quickly preview historical pictures of video data without skipping the playback of key data, and proposes an event-based video enrichment technology. [00...

Claims

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Application Information

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IPC IPC(8): H04N21/8549H04N21/234H04N21/44H04N21/2387
CPCH04N21/8549H04N21/234H04N21/44H04N21/2387
Inventor 黄成陈帅斌蒋泽飞夏虹
Owner HANGZHOU CLOSELI TECH CO LTD
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