Patent ID: 6674474
Filing Date: 2004-01-06
Classification: H04N

Abstract:
A television camera apparatus for converting an incident light originated from a photographing object into a picture signal, comprising:an image pick-up unit containing a plurality of photoelectric converting elements, for generating said picture signal; a detection unit for detecting first and second luminance level ranges each higher than a predetermined level within said picture signal at first and second predetermined time instants, respectively, and detecting a change component between said first and second luminance level ranges; a transmission light amount control unit for controlling a light amount of said incident light from said photographing object, received on the respective photoelectric converting elements; a predicting unit for predicting, at a preselected time instant before a third predetermined time instant, a third luminance level range at said third predetermined time instance higher than the predetermined level from said picture signal based on said change component from said detection unit; and a control unit coupled with said transmission light amount control unit, for controlling a light amount of said incident light entered into said photoelectric converting elements at said third predetermined time instant, based upon an output of said predicting unit.