How it works

  • The sensor holds multiple “contexts” (pages) — each containing a complete set of configuration registers (e.g., exposure time, gain, ROI, frame rate, readout mode, etc.).
  • The user can pre-load these contexts into internal memory.
  • During operation, the sensor can instantaneously switch from one page to another, typically in a single frame or line period.
  • This eliminates the delay of sending all register writes over the control interface (I²C, SPI, etc.) for each change.

Benefits

  1. High-Speed Mode Changes – Enables switching operating modes in microseconds instead of milliseconds.
  2. Multi-Scene Capture – Allows capturing alternating frames with different exposures, gains, or regions of interest for HDR or scientific imaging.
  3. Synchronization – Useful in applications where changes must occur at precise timing (e.g., between frames in a PIV system).
  4. Reduced Host Processing Overhead – Host controller doesn’t need to reprogram every setting in real time.

 

Example Use Cases

  • HDR Imaging – Alternate frames with short and long exposures.
  • Multispectral Imaging – Switch filters and sensor settings for different wavelengths.
  • High-Speed ROI Switching – Alternate between wide-view and zoomed-in captures in machine vision.
  • Particle Image Velocimetry (PIV) – Switch settings between laser pulses.

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