Modeling of a stereo vision system using a genetic algorithm based fuzzy linear regression

In this paper a fuzzy linear regression (FLR) model integrated with a genetic algorithm (GA) is proposed. The proposed GA-FLR model is applied to modeling of a stereo vision system. A set of empirical data from stereo vision object measurement is collected based on the full factorial design technique. Three regression models, namely ordinary least-squares regression (OLS), FLR, and GA-FLR, are developed, and with their performances compared. The results show that the proposed GA-FLR model performs better than OLS and FLR in modeling of a stereo vision system.

Instrumental vision

This chapter interrogates stereo-immersive ‘virtual reality’ (VR), the technology that enables a perceiver to experience what it is like to be immersed in a simulated environment. While the simulation is powered by the “geometry engine” (Cutting, 1997: 31) associated with high-end computer imaging technology, the visual experience itself is powered by ordinary human vision: the vision system’s innate capacity to see “in 3D”. To understand and critically appraise stereo-immersive VR, we should study not its purported ‘virtuality’, but its specific visuality, because the ‘reality’ of a so-called ‘virtual environment’ is afforded by the stereoacuity of binocular vision itself. By way of such a critique of the visuality of stereo-immersive VR, this chapter suggests that we think about the ‘practice’ of vision, and consider on what basis vision can have its own ‘materiality’. Pictorial perception is proposed as an exemplary visual mode in which the possibilities of perception might emerge. Against the ‘possibilities’ of vision associated with pictures, the visuality of stereo-immersive VR emerges as a harnessing, or ‘instrumentalisation’ of vision’s innate capabilities. James J. Gibson’s ‘ecological’ approach to vision studies is referenced to show the degree to which developers of VR have sought — and succeeded — to mimic the ‘realness’ of ordinary perceptual reality. This raises a question concerning whether the success of stereo-immersive VR is simultaneously the source of its own perceptual redundancy: for to bring into being the perceptual basis of ordinary ‘real’ reality, is to return the perceiver to what is already familiar and known.

Embedded vision-based autonomous move-to-grasp approach for a mobile manipulator

This paper proposes a vision‐based autonomous move‐to‐grasp approach for a compact mobile manipulator under some low and small environments. The visual information of specified object with a radial symbol and an overhead colour block is extracted from two CMOS cameras in an embedded way. Furthermore, the mobile platform and the postures of the manipulator are adjusted continuously by vision‐based control, which drives the mobile manipulator approaching the object. When the mobile manipulator is sufficiently close to the object, only the manipulator moves to grasp the object based on the incremental movement with its head end centre of the end‐effector conforming to a Bezier curve. The effectiveness of the proposed approach is verified by experiments.

Adaptive, eclectic and democratic : an alternative year 2020 vision of the place of psychiatry

It was the end of the academic year in 2020. On the third floor of the Southern Health University's administrative building, the five Vice-Chancellors of the Health Universities were gathering. Outside it was raining, but the patter of drops on the window only served to enhance the coziness of the meeting room. This annual event would take three days. The Vice-Chancellors enjoyed this meeting. They seldom saw each other during the busy academic year and under Professor Hope Brightview's 6 years of chairmanship they had been able to work well together to formulate a rational and profitable distribution of teaching, research and consultation services.