Three of the most basic tasks in computer vision and graphics are capturing, representing, and rendering objects or scenes in as photorealistic a manner as possible. In this paper, we describe our image-based approach to representing and photorealistically rendering objects using what we call Inverse Concentric Mosaics (ICM). While ICM is fundamentally based on the Concentric Mosaics (CM) [12],...

The Trout Valley Formation of Emsian–Eifelian age in northern Maine hosts evidence of early vascular plant communities interpreted as having colonized wetland, estuarine environments. To date, collections made under permits issued by the Baxter State Park Commission, originate from outcrop along Trout Brook, its tributaries, and poorly exposed lithologies inside the woodlands. Construction of a...

To investigate whether circulating blood volume contributes to left ventricular (LV) geometry, 60 outpatients with untreated, mild to moderate essential hypertension and 45 normotensives were studied. Based on echocardiographic LV mass index and relative wall thickness, four patterns of LV geometry, i.e., normal left ventricle, concentric remodeling, eccentric hypertrophy and concentric hypertr...

OBJECTIVE To analyze concentric and eccentric strength and endurance in patients with unilateral intermittent claudication. INTRODUCTION Basic motor tasks are composed of concentric, isometric, and eccentric actions, which are related and contribute to physical performance. In previous studies of patients with intermittent claudication, the disease-related reduction in concentric and isometri...

To isolate any difference muscular contraction history may have on concentric work output, 40 trained male subjects performed three separate isokinetic concentric squats that involved differing contraction histories, 1) a concentric-only (CO) squat, 2) a concentric squat preceded by an isometric preload (IS), and 3) a stretch-shorten cycle (SSC) squat. Over the first 300 ms of the concentric mo...

The stretch-shortening cycle is one of the most interesting topics in the field of sport sciences, because the performance of human movement is enhanced by the stretch-shortening cycle (eccentric contraction). The purpose of the present study was to examine whether the influence of preactivation on the torque enhancement by stretch-shortening cycle in knee extensors. Twelve men participated in ...

Small heat shock proteins (sHSPs) are a subgroup of the highly conserved family of HSPs that are stress inducible and confer resistance to cellular stress and injury. This study aimed to quantitatively examine whether type of contraction (concentric or eccentric) affects sHSPs, HSP27 and αB-crystallin, localization, and phosphorylation in human muscle. Vastus lateralis muscle biopsies from 11 h...

In this paper, we present a new method for camera calibration using concentric circles. We demonstrate that camera calibration is possible using two views of a concentric circle with known size. A new method to determine the position of the projected center of the circle is introduced. Based on the accurate estimation of the projected circle center of two sets of 3-D concentric circles, the pro...