FIELD: information technology.
SUBSTANCE: method, apparatus and system for model-based playfield registration. An input video image is processed. The processing of the video image includes extracting key points relating to the video image. Further, whether enough key points relating to the video image were extracted is determined, and a direct estimation of the video image is performed if enough key points have been extracted and then, a tomographic matrix of the final video image based on the direct estimation is generated.
EFFECT: high stability of search and acceleration thereof, smaller search space.
12 cl, 11 dwg
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