This paper presents a new technique for automatically detecting and diagnosing the repetitive surface defects in hot rolling. In the paper, surface image data of the hot rolled bars is online collected using advanced image sensors, and an automatic defect detection algorithm is developed for identifying the rollinduced repetitive surface defects by integrating the Canny detector and the Hough t...

It is common to find spatially repetitive patterns in animal visual signals. The evolution of such patterns is not well explained by existing theories of signal evolution. In this paper, we suggest that the evolution of signals with spatial repetition may be due to specific recognition problems and receiver biases. The logics of our hypotheses are studied in co-evolutionary simulations using ar...

Moiré phenomena of different types are frequently encountered in electronic imaging. Most common are moiré effects that occur between periodic structures. These effects have been intensively investigated in the past, and their mathematical theory is today fully understood. The same is true for moiré effects between repetitive layers (i.e., between geometric transformations of periodic layers). ...

This study examines how heard prosodic patterns are parsed by reference to a principle of focus of attention [1]. According to this principle, attention holds up to four items at once, and the same upper limit appears to apply to the number of syllables in rhythm groups [2]. On this basis it was predicted that in recalling heard prosodic structures, listeners would attend primarily to rhythm gr...

Of the diagnostic features of autism, relatively little research has been devoted to restricted and repetitive behavior, particularly topographically complex forms of restricted and repetitive behavior such as rigidity in routines or compulsive-like behavior (e.g., arranging objects in patterns or rows). Like vocal or motor stereotypy, topographically complex forms of restricted and repetitive ...

Systematic study of abnormal repetitive behaviors in autism has been lacking despite the diagnostic significance of such behavior. The occurrence of specific topographies of repetitive behaviors as well as their severity was assessed in individuals with mental retardation with and without autism. The occurrence of each behavior category, except dyskinesias, was higher in the autism group and au...

A large body of research has shown superior learning rates in variable practice compared to repetitive practice. More specifically, this has been demonstrated in the contextual interference (CI) and in the differential learning (DL) approach that are both representatives of variable practice. Behavioral studies have indicate different learning processes in CI and DL. Aim of the present study wa...