Patent ID: 7218342

Claim:
A surveillance camera apparatus having an image-pickup unit and a signal processing unit for processing an image-pickup signal, and sending out an image-sensed picture, and being mountable onto a rotary base, said image-pickup unit locating therein an image-sensor and an optical lens, said surveillance camera apparatus, comprising: a first storage unit for storing a size of pixels configuring said image-sensor, computation means for performing a computation using first information, second information, third information, and fourth information so as to calculate angle information on a plurality of vertex-points that form a region to be masked, said information stored in said first storage unit being defined as said first information, a focal length of said optical lens being defined as said second information, angle information on an optical axis that passes through a rotation center of said surveillance camera apparatus after being mounted onto said rotary base and that becomes a normal to a plane formed by said image-sensor being defined as said third information, and pixel information corresponding to said plurality of vertex-points that form said region to be masked whose image has been picked up by said image-sensor being defined as said fourth information, and a second storage unit for storing said computation result by said computation means.