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

3.2 Lens Distortion Correction (LDC)

LDC module remaps pixels from a distorted input space to an undistorted output space applying perspective transform/homography operations. LDC supports following features:

  • Lens distortion correction, stereo rectification, generic pixel remap
    • Multi-region mode for enhanced image quality
    • Superior correction mode - Look Up Table based backmapping method
    • Sub-pixel accuracy using bicubic interpolation
    • DDR b/w optimized architecture
      • Supported Formats:
    • YUV 420 (NV12/NV21)
    • Up to 12 bits/component
      • Interpolation Type:
    • Bicubic (2 cyc/Pixel)
    • Bilinear (1 cyc/Pixel)