Results 251 to 260 of about 1,274,653 (285)

A Matched Filter For Infrared Background Suppression

SPIE Proceedings, 1988
This paper reports the performance evaluation of a matched filter for IR background suppression and target detection in one atmospheric window of the Middle Infrared Region. This filter is for application in an airborne staring infrared missile warning (IRMW) system.
Sergio Nanni, Luca Nicotra
openaire   +1 more source

Colour Matching of Isoluminant Samples and Backgrounds: A Dimming Effect

Perception, 2005
Sequential asymmetrical colour matching of forty Munsell samples simulated under illuminant C and one of eight test illuminants was carried out. The subjects matched the appearance of each sample under illuminant C with its appearance under the test illuminant.
Murray, Ian J., Kulikowski, Janus J., Stanikunas, Rytis, Vaitkevičius, Henrikas, Daugirdiene, Avsra   +4 more
openaire   +2 more sources

Hierarchical Stereo Matching: From Foreground to Background

2006
In this paper we propose a new segment-based stereo matching algorithm using scene hierarchical structure. In particular, we highlight a previously overlooked geometric fact: the most foreground objects can be easily detected by intensity-based cost function and the farer objects can be matched using local occlusion model constructed by former ...
Kai Zhang, Yuzhou Wang, Guoping Wang
openaire   +1 more source

Foreground-background segmentation using iterated distribution matching

CVPR 2011, 2011
This paper addresses the problem of image segmentation with a reference distribution. Recent studies have shown that segmentation with global consistency measures outperforms conventional techniques based on pixel-wise measures. However, such global approaches require a precise distribution to obtain the correct extraction.
Viet Quoc Pham, Keita Takahashi 0001, Takeshi Naemura   +2 more
openaire   +1 more source

On Matching Algorithms for the Recognition of Objects in Cluttered Background

2001
An experimental comparative study of three matching methods for the recognition of 3D objects from a 2D view is carried out. The methods include graph matching, geometric hashing and the alignment technique. The same source of information is made available to each method to ensure that the comparison is meaningful.
Josef Kittler, Alireza Ahmadyfard
openaire   +1 more source

Apostatic selection on prey that match the background

Biological Journal of the Linnean Society, 1984
There is good experimental evidence that predators often remove disproportionately more of the common prey types. This ‘apostatic selection’ could maintain colour polymorphisms within prey species. In nature, morphs of many species appear to match components in the background, but most of the experiments that have tested apostatic selection have used ...
openaire   +1 more source

A Feature Point Matching Algorithm for Complex Background Image

2015 IEEE Fifth International Conference on Big Data and Cloud Computing, 2015
Aming at the problem that the match algorithms of feature points under complex background have low reliability and weak robustness, a match the feature points algorithm is based on Speed Up Robust Features, namely determine the main direction by calculating the gradient information around feature points using Haar wavelet, generate 64-dimensional ...
Xiaoli Wang, Dongmei Liu, Lirong Wang
openaire   +1 more source

Cosmic background matches blackbody with deviations

Physics Today, 1979
Although last year's Nobel prize in physics honored the discovery of the cosmic background radiation in 1965, since then, because the observations are so difficult to make (especially at high frequency), it has only been possible to show that the spectrum is approximately that of a 3-K blackbody.
openaire   +1 more source

The Impact of Geographical Background on the Orthopedic Surgery Residency Match

Journal of Surgical Education
With the introduction of geographic preferences, orthopedic surgery residency applicants can transparently indicate their preference for geographic regions. While studies have evaluated how board scores and preference-signaling affect an applicant's match, little research has evaluated the impact of geography.
Andrew H. Kim, Kelly M. Dopke, William G. ElNemer, Micheal Raad, Nathan P. Smith, Emily Tufford, Amiethab Aiyer, Robert A. Gallo, Dawn M. LaPorte   +8 more
openaire   +2 more sources

A review of multimodal image matching: Methods and applications

Information Fusion, 2021
Xingyu Jiang, Jiayi Ma, Guobao Xiao
exaly