Abstract:

This paper presents an algorithm used for the gradient-based motion measurement via the multi -imagewavelet transform according to the characteristics of wavelet transform. In this algorithm , the measurement accuracyis greatly improved because the motion between two images is measured via the data of many images. Moreover , incombination with the reliability measure , a multi-level simultaneous time differential is performed for the reliablelight-stream constraints of the images via the rapid wavelet transform. As compared with the conventional motion estimationmethods , the proposed algorithm based on the multi-level simultaneous wavelet transform avoids the propagationof errors between the decomposed levels , thus improving the measurement accuracy. The simulated results byexperiments show that the proposed algorithm is not only accurate but also easy to implement.

Key words: motion measurement, wavelet transform, multi-image, reliability