Image sensing apparatus

Details Image sensing apparatus Image sensing apparatus

1993-02-25

1994-08-30

Groody, James J.

Television

Camera, system and detail

Optics

348354, 354402, H04N 5232, H04N 5238

Patent

active

053432460

ABSTRACT:
An image sensing apparatus comprises a light measuring circuit for performing a weighted light measurement on the basis of a light measuring area set in a predetermined position within an image sensing plane, a detecting circuit for detecting the levels of the luminance signals obtained from a plurality of detecting areas set within the image sensing plane, a discriminating circuit for discriminating the state of an object being photographed on the basis of the output of the detecting circuit, a compensation circuit for compensating a light measurement signal produced by the light measuring circuit in a backlighting photographic state, and a compression circuit for controlling a compression point and/or a compression rate of a high-luminance signal in accordance with the amount of compression performed by the compression circuit.

REFERENCES:
patent: 4638367 (1987-01-01), Sakane et al.
patent: 4774401 (1988-09-01), Yamada et al.
patent: 5075778 (1991-12-01), Saito

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