A multi-camera-based collision detection system is presented. We describe the computation of global collision information for the entire surveilled workspace based on local collision information extracted from camera images. If there are known occlusions (e.g., by the robot), the system is able to recover object collision information by fusing multiple camera images. The algorithm presented is ...

We present an exact algebraic algorithm for real-time continuous collision detection (CCD) for moving ellipsoids under affine deformations. An efficient collision test is first developed for two static ellipsoids, which takes less than 1 microsecond. Using this practical result and the properties of our algebraic condition, we produce a real-time solution to the CCD problem that computes the ex...

Beam-type collisional activation dissociation (HCD) offers many advantages over resonant excitation collision-activated dissociation, including improved identification of phosphorylated peptides and compatibility with isobaric tag-based quantitation (e.g. tandem mass tag (TMT) and iTRAQ). However, HCD typically requires specially designed and dedicated collision cells. Here we demonstrate that ...

Wireless Sensor Network (WSN) and Radio Frequency Identification (RFID) systems have engrossed considerable attention in recent years for ubiquitous computing. Their use revolutionizes diverse application areas. The integration of WSN and RFID enhances the capabilities of both the technologies providing way to diverse research areas. The integrated network of WSN and RFID systems involves vario...

Computer-vision based collision risk assessment is important in collision detection and obstacle avoidance tasks. We present an approach to determine both time to collision (TTC) and collision risk for semi-rigid obstacles from videos obtained with an uncalibrated camera. TTC for a body moving relative to the camera can be calculated using the ratio of its image size and its time derivative. In...

We present an approach for approximate collision handling which uses probabilistic information for improving the calculated collision response between objects in real-time physically based animation. The system uses an interruptible collision detection mechanism, which checks for intersections between successive levels of a bounding volume hierarchy (BVH). Traditionally, when the collision dete...

We introduce the Fastron, a configuration space (C-space) model to be used as a proxy to kinematic-based collision detection. The Fastron allows iterative updates to account for a changing environment through a combination of a novel formulation of the kernel perceptron learning algorithm and an active learning strategy. Our simulations on a 7 degree-of-freedom arm indicate that proxy collision...

Forward collision occurs most frequently and involves the largest number of fatalities among various types of collisions in traffic accidents. Active research has been carried out to develop systems to avoid or mitigate forward collision. These systems are effective in reducing the number and the severity of occupant injuries, however, there is still margin for improvement, especially for reduc...

This paper presents a new collision avoidance technique, called cooperative collision avoidance, for multiple mobile robots. The detection of the danger of collision between two mobile robots is discussed with respect to the geometric aspects of their paths as are cooperative collision avoidance behaviors. The direction control command and the velocity control command for the cooperative collis...