TY - GEN

T1 - A direct data approximation based motion estimation algorithm

AU - Debrunner, Christian H.

AU - Ahuja, Narendra

PY - 1990

Y1 - 1990

N2 - A novel algorithm for estimating motion and structure from orthographic projections is presented. The estimate is based on the image locations of a set of points on a rigid object viewed in many frames. The object can have an arbitrary shape. Motion is assumed to consist of rotation about a fixed-direction axis and linear translation, each at a constant rate. The algorithm uses closed-form expressions to find estimates of the motion and the structure parameters and can accept any number of points over any number of frames as input. The performance of the algorithm on synthetic data generated to represent a range of motion and structure conditions and on data extracted from real images is evaluated. It is shown that the algorithm produces accurate results from synthetic data given the positions of 10 points over 10 frames, with a total rotation of 90° and with uniformly distributed noise of 0.9%.

AB - A novel algorithm for estimating motion and structure from orthographic projections is presented. The estimate is based on the image locations of a set of points on a rigid object viewed in many frames. The object can have an arbitrary shape. Motion is assumed to consist of rotation about a fixed-direction axis and linear translation, each at a constant rate. The algorithm uses closed-form expressions to find estimates of the motion and the structure parameters and can accept any number of points over any number of frames as input. The performance of the algorithm on synthetic data generated to represent a range of motion and structure conditions and on data extracted from real images is evaluated. It is shown that the algorithm produces accurate results from synthetic data given the positions of 10 points over 10 frames, with a total rotation of 90° and with uniformly distributed noise of 0.9%.

UR - http://www.scopus.com/inward/record.url?scp=0025536676&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025536676&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0025536676

SN - 0818620625

T3 - Proceedings - International Conference on Pattern Recognition

SP - 384

EP - 389

BT - Proceedings - International Conference on Pattern Recognition

PB - Publ by IEEE

T2 - Proceedings of the 10th International Conference on Pattern Recognition

Y2 - 16 June 1990 through 21 June 1990

ER -