Dimming method for infrared camera

An infrared camera and infrared technology, applied in the field of cameras, can solve the problems of inability to sense light, increase the manufacturing cost of infrared camera devices, affect the photosensitive effect, etc., and achieve the effects of saving energy, improving service life and concealing effect.

Active Publication Date: 2014-12-10
SKY LIGHT ELECTRONICS SHENZHEN
View PDF6 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the installation method of the photoresistor will directly affect the photosensitive effect, because the photoresistor cannot be installed in the middle of the optical lens area. When the photoresistor is installed on the left side of the optical lens area, it cannot sense the light on the right side. The lower side cannot sense the light on t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dimming method for infrared camera
  • Dimming method for infrared camera
  • Dimming method for infrared camera

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] In order to more fully understand the technical content of the present invention, the technical solutions of the present invention are further introduced and described below with reference to specific embodiments.

[0032] like figure 1 As shown, it is a schematic diagram of the working principle of the present invention. The actual brightness of the image is equal to the sum of the natural light brightness and the compensation brightness of the infrared LED light. The DSP (Digital Signal Processor) obtains YUV data and buffers it in the source buffer. The application directly obtains the current brightness value of a frame of image from the source buffer through the API interface on the IAV driver of Taiwan Ambarella Co., Ltd., and then judges Whether it is necessary to turn on or off the infrared LED light and adjust the working parameters of the infrared LED light for brightness compensation. According to the relationship between the power P, the voltage U, and the cu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a dimming method for an infrared camera. The method includes the steps: acquiring a target value range of image brightness with the most comfortable image perceptibility and generating the best video streaming perceptibility by testing; acquiring a current value of a brightness value of a frame image; comparing the current value of the brightness value with the target value range of the image brightness, and judging whether the current value of the brightness value exceeds the target value range of the brightness or not; adjusting illumination of an infrared LED (light-emitting diode) lamp if the current value of the brightness value exceeds the target value range of the brightness. Therefore, a value of the image brightness is returned to the target value range of the image brightness. Barrier-free monitoring in 24 hours is achieved, monitoring effects are basically unchanged when the light intensity of an external environment is constantly changed, energy is saved, the service life of the infrared camera is prolonged, and the hidden effect of the infrared camera is improved.

Description

technical field [0001] The invention relates to the technical field of cameras, in particular to a dimming method for an infrared camera. Background technique [0002] At present, infrared cameras have been widely used in various fields. As one of the key components of infrared cameras, the photosensitive element mainly uses its technology of sensing external light signals in space and converting them into image signals to make the picture clear. recorded. However, in fields such as security that need to be monitored 24 hours a day, higher requirements are put forward for the performance of infrared cameras, such as: the infrared camera equipment has inconsistent light intensity such as day and night (or bright and dark places). Under these conditions, excellent monitoring effects are required. For infrared cameras, there are generally better shooting results in daytime with sufficient light, night or dark places with sufficient lighting brightness. However, in an environ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N5/235H04N5/33
Inventor 孙飞燕甘卫军
Owner SKY LIGHT ELECTRONICS SHENZHEN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap