| 摘要 |
<p>There are provided MPEG2 video encoding means 102 for converting a progressive signal to a bitstream 512 in accordance with the format of ISO/IEC 13818-2, flag bit analyzing means 503 for extracting, from the bitstream 512, data on the frame rate of a material and adaptably specifying a rate doubling method, second MPEG2 video decoding means 504 for receiving the bitstream, reconstructing an image signal from the bitstream, and outputting the progressive signal, and the like, whereby a progressive output conforming to the frame rate of a display system and free from image quality degradation is obtained. <IMAGE></p> |
