Patent ID: 7453496
Filing Date: 2008-11-18
Classification: H04N

Abstract:
1. An image composition method comprising: composing a high-sensitivity image signal H and a low-sensitivity image signal L, so as to generate a composite image signal Gc according to a composing expression: where k is a composite parameter satisfying 0≦k≦1, wherein the high-sensitivity image signal H is generated based on high-sensitivity image outputs from corresponding ones of a plurality of pixel positions in a solid-state imaging element that has imaged a subject; the low-sensitivity image signal L is generated based on low-sensitivity image outputs from corresponding ones of the plurality of pixel positions in the solid-state imaging element; the composing is performed at every common pixel position by determining k at every common pixel position; wherein the high-sensitivity image signal H is a signal G the low-sensitivity image signal L is a signal G wherein the nonlinear characteristic G