Epipolar geometry between two images is normally computed by matching feature points between the images. When not enough feature points can be found, e.g. when the camera viewpoints vary greatly, epipolar geometry can be computed from video sequences showing moving objects visible in the two videos. We present a temporal signature for lines: a binary temporal sequence, indicating for each frame...

Visual Hull (VH) construction is a popular method of shape estimation. The method, also known as Shape from Silhouette (SFS), approximates shape of an object from multiple silhouette images by constructing an upper bound of the shape called the Visual Hull. SFS is used in many applications such as non-invasive 3D object digitization, 3D object recognition and more recently human motion tracking...

Silhouette and pose are two common features to extract the descriptive unique patterns of a person’s gait, good performance has been already achieved driven by deep learning techniques. However, some issues still exist, silhouette is known be sensitive changes appearance while not so discriminative as even though it considered being more robust. Therefore, advantageous fuse into one model achie...

We consider random polytopes defined as the convex hull of a Poisson point process on a sphere in R3 such that its average number of points is n. We show that the expectation over all such random polytopes of the maximum size of their silhouettes viewed from infinity is Θ( √ n).

INTRODUCTION Over the recent decades various marker­based video capture systems have been developed in order to estimate segment kinematics in biomechanics applications. It may not be a disproportionate statement to claim that this method is regarded as the gold standard in laboratory based settings. Inherent problems to these systems include adequate marker placement, skin movement artefacts a...