Monday, July 13, 2009

Pixel Scan Quantum Efficiency Spectra Reshaping

Pixel Scan company was founded by Professor Orly Yadid-Pecht from Israeli Ben-Gurion University. The company proposes Quantum Efficiency Spectra Reshaping (QESR) technology that enhances CIS performance. The QESR hardware block takes sensor's output and does some magic in Bayer domain that relies on "Patented Technology that Reshapes Image Sensor’s QE Spectra, while reducing its Inherent Color CrossTalk (CTK)
The signal is “rearranged” such that the photocarriers captured by the "wrong" pixels are "restored" to the pixel they initially originated from without signal loss and additive noise.

The net result of QESR algorithm is 10% low-light sensitivity improvement and more:

The company's poster is here.


  1. Noiseless color correction and cross talk reduction with uncorrelated signals and noise. Amazing! What will they think of next?

  2. Orly is not new to image sensors. She wrote many papers and few books over last 20 years or so. So, I do believe she knows what she talks about, even though it looks like impossible.

  3. What is the country and patent number of the Patented Technology? I could not find anything under Pixel-Scan, Ben-Gurion, Yadid-Pecht or Shcherback, in the US or international databases. Maybe I am not searching the right thing.

  4. I've just emailed Pixel Scan an invitation to join the discussion. Let's see if they respond.


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