Overview:
CMOS Image Sensors (CIS) often suffer from base noise, such as Additive White Gaussian Noise (AWGN), which deteriorates image quality in low-light environments. Traditional noise reduction methods include mask filters for still images and temporal noise data accumulation for video streams. However, these methods can lead to ghosting artifacts in sequential images due to inconsistent signal processing. To address this, this IP offers advanced noise reduction techniques and features a specific Anti-ghost Block to minimize ghosting effects.
Specifications:
Maximum Resolution
o Image : 13MP
o Video : 13MP@30fps
-Input formats : YUV422–8 bits
-Output formats
o DVP : YUV422-8 bits
o AXI : YUV420, YUV422
-8 bits-Interface
o ARM® AMBA APB BUS interface for ISP system control
o ARM® AMBA AXI interface for data
o Direct connection to sensor stream data (DVP)
Features:
Base Noise Correction: AWGN reduction for improved image quality
Mask Filter: Convolution-based noise reduction for still images
Temporal Noise Data Accumulation: Gaussian Distribution-based noise reduction for video streams using 2 frames of
images
3D Noise Reduction (3DNR): Sequential image noise reduction with Anti-ghost Block
Motion Estimation and Adaptive: Suppresses ghosting artifacts during noise reduction
Real-Time Processing: Supports Digital Video Port (DVP) and AXI interfaces for seamless integration
Anti-Ghost
Real time De-noising output
