Patent ID: 8013935

Claim:
A picture processing apparatus comprising: a first memory unit which stores a picture signal in a storage area; an equalizing circuit which detects whether there is a movement or not between the picture signal and a picture signal read from the first memory unit, and obtains and outputs an average signal between the picture signal and the picture signal read from the memory unit at least in a static state; a second memory unit which stores the average signal from the equalizing circuit in a storage area; a pull-down detecting circuit which determines whether or not the picture signal is based on pull-down signals upon receipt of the average signal from the equalizing circuit, an output from the second memory unit, and an output from the first memory unit, and which selects a pull-down interpolation signal for deinterlacing process from a plurality of frames of the pull-down signals when it is determined that the picture signal is based on the pull-down signals; an interpolation signal generating circuit which generates an interpolation signal for deinterlacing process upon receipt of the output from the equalizing circuit, the output from the second memory unit, and the output from the first memory unit; and a noninterlaced scanning conversion circuit which generates a noninterlaced signal by adding the pull-down signals to the output from the second memory unit when the pull-down detecting circuit determines that the picture signal is based on the pull-down signals upon receipt of the pull-down interpolation signal from the pull-down detecting circuit or the interpolation signal from the interpolation signal generating circuit, and which generates a noninterlaced signal by adding the interpolation signal to the output from the second memory unit when the pull-down detecting circuit determines that the picture signal is not based on the pull-down signals.