Correction method for pixel response inconsistency of linear array ccd
A correction method and consistent technology, applied in electrical components, image communication, television, etc., can solve the problems of poor correction effect, residual dark current noise, and no consideration of A/D conversion chips, etc., to achieve high correction accuracy and improve signal quality. The effect of the noise ratio
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0081] Utilize FPGA to realize the method of the present invention, and test on a certain imager circuit, the CCD that this imager uses is a TDICCD, and the typical value of photoelectric response inconsistency and dark current noise inconsistency given in the device manual is 5%, and the maximum value of photoelectric response inconsistency is 10%. In order to evaluate the result image simply and objectively, three indexes of gray curve before and after correction, photon transfer curve and signal-to-noise ratio (SNR) are used for comparison.
[0082] figure 2 The dark current noise before and after correction under different integral series is given (the CCD is imaged under the condition of complete blackness, and the images after imaging are averaged in the column direction), figure 2 In (a) from top to bottom, there are integral series 5, integral series 4, ..., integral series 1. from figure 2 It can be seen from (b) that the dark current noise of the image after co...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com