Why image stitching?

Modern ultra-wide displays (e.g. 21:9, 32:9 or 6:1) overtax conventional measurement systems: they use sensor surfaces inefficiently, provide insufficient resolution and lead to measurement gaps. With the new LMK Image Stitching, TechnoTeam offers a powerful extension for high-resolution luminance measurement of displays with large or unusual aspect ratios. The technology makes it possible to merge several individual images into one high-resolution overall image - without any loss of measurement accuracy.

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How LMK Image Stitching works

With LMK image stitching, several individual images are captured and merged into a continuous, high-resolution luminance image. This is done sequentially or in parallel with several cameras. The algorithm is based on our  Advanced Pixel Registration (APR) method. It separates the position detection from the luminance measurement and allows distortion-free measurement directly on pixel-level.

Advantages of combined stitching and APR technology:

  • Higher resolution thanks to the combination of multiple images
  • Greater efficiency thanks to optimum sensor-to-display adaptation
  • Precise image fusion thanks to exact pixel positioning using APR
  • Cost reduction through the use of low-cost cameras

APR technology at a glance:

  1. Registration image: Exact position detection of each pixel through targeted activation of individual areas
  2. Luminance test image: Measurement of luminance with high precision
  3. Stitching: Merge multiple images directly in display coordinates
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Basic concept of image stitching: individual measurements are combined to form an overall image

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APR method and luminance measurement (top) are merged into a pixel-precise luminance image (bottom) thanks to APR