Unlock instant, AI-driven research and patent intelligence for your innovation.

Photosensitive sensor-based auxiliary image adjustment method and device

A photosensitive sensor and auxiliary image technology, applied in the direction of closed-circuit television system, etc., can solve the problem of not being able to obtain good image effects, and achieve the effect of improving the effect.

Active Publication Date: 2015-04-29
SHENZHEN STREAMING VIDEO TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and device for assisting image adjustment based on a photosensitive sensor, aiming to solve the problem that a good image effect cannot be obtained by using a general ISP algorithm under different illuminances

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
  • Photosensitive sensor-based auxiliary image adjustment method and device
  • Photosensitive sensor-based auxiliary image adjustment method and device
  • Photosensitive sensor-based auxiliary image adjustment method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 of the present invention provides a method for assisting image adjustment based on a photosensitive sensor, see figure 1 , the method for assisting image adjustment based on a photosensitive sensor comprises the following steps:

[0030] 101. Establish an illuminance resistance mapping table. The illuminance resistance mapping table includes several illuminance intervals and several resistance values, and the illuminance intervals correspond to the resistance values ​​one by one.

[0031] The step of establishing the illuminance resistance mapping table specifically includes: establishing the illuminance resistance mapping table according to the noise level generated by the photosensitive sensor.

[0032] Such as figure 2 As shown, adjusting the different resistance values ​​of the programmable resistor Rss will make its ADC-illuminance curve (such as image 3 shown) produce different precision and effects. The larger the resistance value, as shown in c...

Embodiment 2

[0047] Embodiment 2 of the present invention provides a device for assisting image adjustment based on a photosensitive sensor, such as Image 6 As shown, the photosensitive sensor-based assisted image adjustment device 60 includes an establishment module 610 , a first acquisition module 620 , a second acquisition module 630 , a generation module 640 and a control module 650 .

[0048] The establishment module 610 is used to establish an illuminance resistance mapping table, the illuminance resistance mapping table includes several illuminance intervals and several resistance values, and the illuminance intervals correspond to the resistance values ​​one by one.

[0049] The first acquiring module 620 is configured to acquire the current illuminance according to the illuminance signal of the photosensitive sensor.

[0050] The second obtaining module 630 is configured to obtain the current resistance value corresponding to the current illuminance according to the illuminance r...

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 provides a photosensitive sensor-based auxiliary image adjustment method and device, and belongs to the field of security and protection video monitoring. The method comprises the following steps: first, establishing an illumination-resistance value mapping table, wherein the illumination-resistance value mapping table comprises a plurality of illumination intervals and a plurality of resistance values, and the illumination intervals are in one-to-one correspondence with the resistance values; then, acquiring the current illumination according to an illumination signal of an photosensitive sensor; next, acquiring the current resistance value corresponding to the current illumination according to the illumination-resistance value mapping table; later on, generating a resistance value control signal according to the current resistance value; finally, controlling the on-off state of a resistor of each part of a programmable resistor according to the resistance value control signal to make the resistance value of the programmable resistor be equal to the current resistance value. According to the photosensitive sensor-based auxiliary image adjustment method and device, the effects of the images under different illuminations are improved.

Description

technical field [0001] The invention relates to the field of security video monitoring, in particular to a method and device for assisting image adjustment based on a photosensitive sensor. Background technique [0002] Video security monitoring system is an electronic system or network that uses video technology to detect and monitor fortified areas and displays and records live images in real time. [0003] In the field of security video surveillance, image sensors with relatively high cost performance are basically used. If a common and consistent ISP (Image Signal Process, Image Signal Processing) algorithm is used for adjustment, it may not always be obtained under different illuminances. Great image effects. Due to design problems, some image sensors are prone to thermal noise when the sensitivity is relatively high. If the standard Gamma adjustment curve plus digital wide dynamic adjustment is adopted, the image quality in darker scenes will be impressive. hard to a...

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): H04N7/18
Inventor 刘文涛邓宝华
Owner SHENZHEN STREAMING VIDEO TECH