Patent ID: 6630955
Filing Date: 2003-10-07
Classification: H04N

Abstract:
An image-sensing apparatus comprising:a solid-state image-sensing device having a plurality of pixels, each having a characteristic that an output voltage thereof varies natural-logarithmically in accordance with an amount of light received by the respective pixel; a detector for detecting a temperature of the solid-state image-sensing device; a storage device for storing first output data as to the output voltages from each respective pixel of the solid-state image-sensing device, and for storing first temperature data as to the temperature of the solid-state image-sensing device as detected on acquisition of the first output data; a calculator for calculating, on a basis of the first temperature data stored in the storage device and second temperature data as to the temperature of the solid-state image-sensing device as detected by the detector during image shooting, a temperature ratio between the first and second temperature data; a first corrector for correcting, on a basis of the temperature ratio calculated by the calculator, the first output data of each respective pixel stored in the storage device; and a second corrector for correcting, on a basis of the first output data of each respective pixel corrected by the first corrector, second output data as to the output voltages from each respective pixel of the solid-state image-sensing device as acquired during image shooting.