SPRACX9 July   2021 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Jacinto 7 Imaging Subsystem Overview
  3. 2Camera Capture Subsystem
    1. 2.1 MIPI-CSI2
    2. 2.2 The Video Processing Front End
  4. 3The Vision Pre-Processing Accelerator
    1. 3.1 Video Imaging Subsystem (VISS)
    2. 3.2 Lens Distortion Correction (LDC)
    3. 3.3 Multi-Scalar (MSC)
    4. 3.4 Bilateral Noise Filtering (BNF)
    5. 3.5 Software Availability for Camera Sensors
  5. 4Example Use-Cases
    1. 4.1 4x Camera Use-Case With MIPI Aggregator
    2. 4.2 Generic 8-Camera Use-Case
    3. 4.3 ADAS Use Case
  6. 5References

3.1 Video Imaging Subsystem (VISS)

VISS performs image processing on raw data and outputs RGB and/or YUV image. Video Imaging Subsystem (VISS) includes following components:

  • Raw Front End (Raw FE) that implements:
    • Wide Dynamic Range (WDR) merge
    • Defect Pixel Correction (DPC)
    • Lens Shading Correction (LSC)
    • Decompounding
    • 3A Statistics
    • White Balance
  • Noise Filter (NSF)
    • Bayer domain spatial noise filter
  • Global and Local Brightness Contrast Enhancement (GLBCE) for adaptive local tone mapping
  • Flex Color Processing (FCP),which supports
    • Demosaicing, color correction, color space conversion and gamma conversion

VISS pipeline can process data at 1 pixel per cycle. On TDA4VM, VISS system can be clocked at 720 Mhz, which enables 720 Mpixel/s processing capability.