Unifying Time to Contact Estimation and Collision Avoidance across Species
نویسندگان
چکیده
منابع مشابه
Unifying Time to Contact Estimation and Collision Avoidance across Species
The τ-function and the η-function are phenomenological models that are widely used in the context of timing interceptive actions and collision avoidance, respectively. Both models were previously considered to be unrelated to each other: τ is a decreasing function that provides an estimation of time-to-contact (ttc) in the early phase of an object approach; in contrast, g has a maximum before t...
متن کاملTime-to-collision and Collision Avoidance Systems
In research on Traffic Conflicts Techniques, Time-To-Collision (TTC) has proven to be an effective measure for rating the severity of traffic conflicts and for discriminating critical from normal behaviour. The results of several studies point to the direct use of TTC as a cue for decision-making in traffic. The current development of driver support systems based on the application of modern te...
متن کاملTime To Contact for Obstacle Avoidance
Time to Contact (TTC) is a biologically inspired method for obstacle detection and reactive control of motion that does not require scene reconstruction or 3D depth estimation. TTC is a measure of distance expressed in time units. Our results show that TTC can be used to provide reactive obstacle avoidance for local navigation. In this paper we describe the principles of time to contact and sho...
متن کاملProposed ST-Slotted-CS-ALOHA Protocol for Time Saving and Collision Avoidance
Time Saving and energy consumption has become a vital issue that attracts the attention of researchers in Underwater Wireless Sensor Networks (UWSNs) fields. According to that, there is a strong need to improve MAC protocols performance in UWSNs, particularly enhancing the effectiveness of ALOHA Protocol. In this paper, a time-saving Aloha protocol with slotted carrier sense proposed which we c...
متن کاملEstimation of Time-to-Collision Maps
We address in this paper the problem of estimating time-to-collision maps involving all the objects in relative motion with respect to the camera. The approach only takes into account normal flows. Moreover we prove that first-order visual motion models are sufficient to obtain time-to-collision. Experiments have been carried out on real images to validate the performance of the method.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: PLoS Computational Biology
سال: 2012
ISSN: 1553-7358
DOI: 10.1371/journal.pcbi.1002625