Abstract: Taking advantages of the quaternion representation of the color image, this paper proposes a quaternion perceptual seamline detection model to generate the seamline in the quaternion domain.

Abstract: The optimization of real scalar functions of quaternion variables, such as the mean square error or array output power, underpins many practical ...

IN a paper by Prof. C. G. Knott on “Recent Innovations in Vector Theory,” of which an abstract has been given in NATURE (vol. xlvii. pp. 590–593; see also a minor abstract on p. 287), the doctrine ...

Though some developers were calling for John Riccitiello to step down, now that he has, it might not be enough to improve developer sentiment toward the company. Though some developers were calling ...

John Riccitiello is stepping down as CEO of Unity and will no longer be on its board. James Whitehurst, former CEO of Red Hat, will become Unity's interim CEO. In September, Unity announced a ...

In an industry where customers are slow to trust and quick to criticize, a new fee from Unity infuriated studios that use its platform. By Mike Isaac and Kellen Browning Reporting from San Francisco ...

1 Department of Mathematics and Statistics, Faculty of Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia. 2 Department of Basics and Engineering Sciences, Faculty of Engineering ...