Canon Files Patent To Reduce Noise And Aliasing

Another patent spotted by Egami (translated). Canon filed a patent to reduce sensor noise and aliasing by better processing the sensor output.

Patent Publication No. 2013-12850
- 2013.1.17 Release Date
- Filing date 2011.6.28
Traditional thinning processing
- Sensitivity for color signal is lower than the luminance signal, the human visual characteristic is not a problem even if thinned out color signals
- If the algorithm requires a memory, in terms of response and undesirable Continuous
- Frequency band of brightness and color are different, depending on the algorithm, causes color streaks
Canon patent
- By aligning the frequency band decimation and interpolation processing to the luminance signal, suppress the color stripes
- Do to reduce the amount of data to be converted from YRB RG1G2B, decimating the RB
  - Each frequency band is divided into storage (YRB1 ~ YRB4)