TY - GEN
T1 - Improved optical flow estimation methods using atomic functions
AU - Cejudo-Torres, Martha
AU - Escamilla-Hernández, Enrique
AU - Nakano-Miyatake, Mariko
AU - Pérez Meana, Héctor
PY - 2012
Y1 - 2012
N2 - The problem of recognizing the objects movement in a sequence of video images has been addressed using different models. Such models attempt to describe the general characteristics of such movements, which require an accurate estimation or the optical flow or velocity of the images. That is the approach of the object movement defined as the projection of 3D surfaces point speeds on a 2D plane. Among several approaches proposed to this end, the optical flow estimation methods from Horn-Schunck and Lucas-Kanade are some of the most widely used. These methods strongly depend on the use of a smoothing Gaussian function. This paper improves the performance of both methods replacing the Gaussian function by a set of functions called Atomic Functions, that present frequency responses with higher attenuation of its side lobes. The performance of conventional and proposed modifications is evaluated comparing the disparity map of the optical flow images obtained, using the Structural Similarity method.
AB - The problem of recognizing the objects movement in a sequence of video images has been addressed using different models. Such models attempt to describe the general characteristics of such movements, which require an accurate estimation or the optical flow or velocity of the images. That is the approach of the object movement defined as the projection of 3D surfaces point speeds on a 2D plane. Among several approaches proposed to this end, the optical flow estimation methods from Horn-Schunck and Lucas-Kanade are some of the most widely used. These methods strongly depend on the use of a smoothing Gaussian function. This paper improves the performance of both methods replacing the Gaussian function by a set of functions called Atomic Functions, that present frequency responses with higher attenuation of its side lobes. The performance of conventional and proposed modifications is evaluated comparing the disparity map of the optical flow images obtained, using the Structural Similarity method.
UR - http://www.scopus.com/inward/record.url?scp=84867314010&partnerID=8YFLogxK
U2 - 10.1109/MWSCAS.2012.6292190
DO - 10.1109/MWSCAS.2012.6292190
M3 - Contribución a la conferencia
AN - SCOPUS:84867314010
SN - 9781467325264
T3 - Midwest Symposium on Circuits and Systems
SP - 996
EP - 999
BT - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
T2 - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Y2 - 5 August 2012 through 8 August 2012
ER -