Abstract
The following quote was obtained by the news editors from the background information supplied bythe inventors: “Conventional Automatic Exposure (AE) metering techniques use a static metering weighttable. For example, conventional AE metering techniques include spot metering, center metering, averagemetering, and custom metering (i.e., metering customized by an end user). The static metering weighttable used in conventional AE metering is implemented by a predefined table selected from the variousmetering models. The selected model for the static metering table is used for a luma calculation. Thecalculated luma value from the static metering table represents the current luminance of the image. Thecurrent luminance of the image is used by a 3A technique to determine how the AE is going to be changed.
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