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A jpeg picture fast mosaic method and device

A fast splicing and image technology, applied in the field of image processing, can solve problems such as difficult to meet system timeliness and performance indicators, and cannot be borrowed, so as to avoid excessive memory space and reduce computing consumption.

Active Publication Date: 2018-01-16
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The image data processed in professional fields such as video surveillance is massive, and ordinary civilian image processing technology is often difficult to meet the system's requirements for timeliness and performance indicators and cannot be borrowed

Method used

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  • A jpeg picture fast mosaic method and device
  • A jpeg picture fast mosaic method and device
  • A jpeg picture fast mosaic method and device

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Embodiment Construction

[0017] Electronic police cameras for intelligent traffic systems are a typical video surveillance application. The front-end camera deployed in the system can realize image coding and various fast intelligent services, such as vehicle detection service, vehicle violation behavior analysis and other intelligent services. When the camera detects a vehicle, it will form a bayonet picture, and the encoding format is JPEG. However, some other information about the vehicle, such as license plate number, body color, vehicle logo, vehicle speed, etc., needs to be calculated through intelligent algorithms. This calculation process takes time, so there is usually a problem of information lag. Furthermore, when analyzing vehicle violations, the vehicle will generate multiple evidence pictures of the violation process during the driving process, and the encoding format is also JPEG, but the final violation information of the vehicle must wait until the vehicle travels far away. Be sure, ...

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Abstract

The present application provides a method and device for quickly splicing JPEG images, which are applied to image processing equipment. The method includes: extracting the quantization table of the first image encoded in JPEG format; wherein the first image includes the header area and includes the first image A data area of ​​encoded data; performing JPEG encoding and splicing preprocessing on the second picture according to the quantization table to obtain second encoded data; splicing the second encoded data into the data area of ​​the first picture. This application can reduce the consumption of image processing performance, and the required memory space is also very reasonable.

Description

technical field [0001] The present application relates to image processing technology, in particular to a method and device for fast stitching of JPEG images. Background technique [0002] Image processing technology is widely used in the general civilian market and professional market; some of these technologies can be intuitively perceived by users, such as the current beauty technology supported by smartphones, panoramic camera technology, and so on. There are also some things that are difficult for users to perceive, such as image encoding and decoding techniques. The image processing technology involved in the professional market such as video surveillance often corresponds to the extremely stringent demand standards of users, such as the accuracy or timeliness of image processing. The image data processed in professional fields such as video surveillance is massive, and ordinary civilian image processing technologies are often difficult to meet the system's requiremen...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/46H04N19/124H04N19/184H04N19/42
Inventor 陈航锋
Owner ZHEJIANG UNIVIEW TECH CO LTD