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Tuesday, September 26, 2006

Sony Color Subsampling Experiments

Tech-On!: Sony consumer HDTV camcorder HDR-HC3 uses 1/4-inch ClearVid CMOS sensor with color filter's balance R:G:B=1:6:1 (1:2:1 in regular sensors). Based on human vision's property, green plays a role to determine resolution, and therefore, Sony increased the green balance as much as possible to achieve high resolution pictures.
Sony applied the same color balance as a trial in the pofessional HDV-V1J's sensor, but "color blurring could not be eliminated" (a company spokesperson) in the end. The company therefore prepared sensors respectively dedicated to each primary color for HDV-V1J.
By shooting video with pickup 1/3-inch sensors respectively dedicated to three primary colors (R, G, B), the camcorder boasts enhanced resolution and color reproduction.

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