This paper addresses several estimation problems involving correspondence in digital video. We present three cases, in order of increasing complexity: affine transformations, projective transformations, and general correspondence. We review some recent research in the first two cases, and present a new framework for discussing the third case. Many image and video processing problems hinge on po...

27 Using projective and objective measures, effects of rock music on emotion were investigated. Sixty students were randomly assigned to three conditions: hard rock, soft rock, and no music. One group listened to hard rock music while taking a projective test with five ink blots and an objective test with an Emotional Assessment Scale (EAS). The same procedure was used for the second group whil...

Menu systems are a standard interface technique in 2D desktop systems. Using menu systems in virtual reality systems however, is often problematic. In this paper, we present five techniques for menu selection in a 3D desktop virtual reality system: a 3D ray-casting technique, two projective techniques, one technique based on 3D positioning, and one technique based on the standard 2D desktop mou...

Art therapy has been applied in a variety of settings and with a large number of different client groups. It has been used for aesthetic, educational and clinical reasons. One of the main applications in the past has been to measure intelligence. However, the test-retest reliability was found to be poor. For example, intelligence or projective tests in clinical psychology, like the 'Rorschach i...

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Arasu, K.T. and A. Pott, Cyclic affine planes and Paley difference sets, Discrete Mathematics 106/107 (1992) 19-23. The existence of a cyclic affine plane implies the existence of a Paley type difference set. We use the existence of this difference set to give the following condition on the existence of cyclic affine planes of order n: If n 8 mod 16 then n 1 must be a prime. We discuss the stru...

Let K = Fq be a finite field. We introduce a family of projective Reed-Mullertype codes called projective Segre codes. Then we study their basic parameters and show that they are direct products of projective Reed-Muller-type codes. It turns out that the direct product of two projective Reed-Muller-type codes is again a projective Reed-Muller-type code. As a consequence we recover some results ...

Seifert fibered 3–manifolds were introduced and studied in [Sei32]. (See [ST80] for an English translation.) Roughly speaking, these are 3–manifolds M which admit a differentiable map f : M → F to a surface F such that every fiber is a circle. Higher dimensional Seifert fibered manifolds were investigated in [OW75]. The authors observed that in many cases of interest Seifert fibered manifolds c...