Patent ID: 6542197
Filing Date: 2003-04-01
Classification: H04N

Abstract:
A three-dimensional signal processor using the motion information extracted during the decoding of the image signal for performing three-dimensional signal processing on an image signal received from a digital decoder, the processor comprising:a motion information extractor which extracts motion information from a transmitted motion vector when the digital decoder is decoding; and a three-dimensional signal processing unit which performs three-dimensional signal processing using the motion information extracted by the motion information extractor, wherein the three-dimensional signal processor performs a double scan conversion in first and second fields constituting a unit frame such that when the size of the motion information is smaller than a minimum critical value, picture data to be synthesized on the first field is produced by reading the picture data of the second field, and picture data to be synthesized on the second field is produced by reading the picture data of the first field, when the size of the motion information is between the minimum critical value and a maximum critical value, the picture data to be synthesized on each of the first and second fields is produced by repetitively reading the picture data of each of the first and second fields, and when the size of the motion information is greater than the maximum critical value, the picture data to be synthesized on each of the first and second fields is obtained by synthesizing the first picture data and the second picture data.