A hologram reproduction apparatus includes a light-receiving unit such as a two-dimensional sensor which obtains two-dimensionally modulated image data, and an AD converter which AD-converts analog data obtained by the light-receiving unit into digital data. A camera system generates video data for an object from a viewpoint of the camera system at a location of the object. The wrappers, and normally also the uniting bands, are perforated in the channel subsequent to, or in part simultaneously with, the conversion of uniting bands into the respective sleeves. The System Card functions as a card extender between the CompactPCI adapters and the main backplane of the frame. A filter is applied in the frequency domain to the discrete Fourier spectrum of the signal to generate a filtered discrete spectral representation, and an inverse discrete Fourier transform of the filtered discrete spectral representation is applied to generate a recovered signal in the time domain that is uniformly sampled.