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Image data encryption method and device, network camera

A technology of image data and encryption method, which is applied in image communication, digital data protection, electrical digital data processing, etc., can solve the problems of high cost and low safety factor, and achieve the effect of high difficulty, good security performance and low implementation cost

Active Publication Date: 2019-06-11
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an image data encryption method and device, and a network camera, which aims to solve the technical problems of low safety factor and high cost of existing image data encryption schemes

Method used

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  • Image data encryption method and device, network camera
  • Image data encryption method and device, network camera
  • Image data encryption method and device, network camera

Examples

Experimental program
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no. 1 example

[0033] figure 2 For the flow diagram of the image data encryption method provided in this embodiment, please refer to figure 2 . The image data encryption method that the present embodiment provides comprises the following steps:

[0034] Step S100: Obtain bad pixel data included in the image data in the image sensor, where the bad pixel data includes at least one of an array of bright spots and an array of dark spots.

[0035] The image data mentioned here refers to the original image data that is directly collected by the image sensor and has not been compressed and encoded. In a completely black scene, there will be several bright spots in the image captured by the image sensor, and these bright spots are called bright spots. In an all-white scene, there will be several normally black points in the picture captured by the image sensor, and these normally black points are called dark spots. Bright and dark spots are collectively referred to as dead spots. There will a...

no. 2 example

[0071] Figure 4 For the structural block diagram of the image data encryption device 300 provided in this embodiment, please refer to Figure 4 . The image data encryption device 300 provided in this embodiment is a hardware device for implementing the method in the first embodiment. The image data encryption device 300 includes a bad point data acquisition module 340 , an encryption factor generation module 310 , an image data encryption module 320 and a decryption factor generation module 330 .

[0072] The dead point data acquisition module 340 is used to obtain dead point data included in the image data in the image sensor, and the bad point data includes at least one of a bright point array and a dark point array. The image data here is the same as the image data in step S100 in the first embodiment, that is to say, step S100 in the first embodiment is executed by the bad pixel data acquisition module 340 , and will not be repeated here.

[0073] The encryption factor...

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Abstract

The invention provides an image data encryption method and device, and a network camera, and relates to the technical field of image data encryption. The image data encryption method includes the following steps: acquiring bad pixel data included in the image data in the image sensor, the bad pixel data including at least one of a bright spot array and a dark spot array. An encryption factor is calculated according to at least one of the bright spot array and the dark spot array. The image data is encrypted according to the encryption factor. The image data encryption method does not need additional hardware equipment to implement, and the implementation cost is low. Moreover, it is difficult to illegally decrypt the encrypted image data, and the security performance is good.

Description

technical field [0001] The invention relates to the technical field of image data encryption, in particular to an image data encryption method and device, and a network camera. Background technique [0002] At present, with the continuous development and improvement of modern communication technology and multimedia data encoding and decoding technology, surveillance cameras have gradually developed from analog and digital cameras to network cameras. The current network image monitoring provided to individual users is generally based on the Internet. Individuals and families install network cameras at home to obtain remote image monitoring services. At the same time, they are also very worried about and attach great importance to the issue of image data security and personal privacy leakage. [0003] The existing image data encryption schemes are mainly software encryption and chip encryption. The software encryption scheme is to store the encryption factor in the disk or FL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60H04N5/225
CPCG06F21/602H04N23/50
Inventor 赵子华
Owner ZHEJIANG UNIVIEW TECH CO LTD