Meek's Cutoff (Kelly Reichardt)
نویسندگان
چکیده
منابع مشابه
Elaborated Reichardt detectors.
The elaborated Reichardt detector (ERD) proposed by van Santen and Sperling [J. Opt. Soc. Am. A 1, 451 (1984)], based on Reichardt's motion detector [Z. Naturforsch. Teil B 12, 447 (1957)], is an opponent system of two mirror-image subunits. Each subunit receives inputs from two spatiotemporal filters (receptive fields), multiplies the filter outputs, and temporally integrates the product. Subu...
متن کاملA Robust Analog VLSI Reichardt Motion Sensor
Silicon imagers with integrated motion-detection circuitry have been developed and tested for the past 15 years. Many previous circuits estimate motion by identifying and tracking spatial or temporal features. These approaches are prone to failure at low SNR conditions, where feature detection becomes unreliable. An alternate approach to motion detection is an intensity-based spatiotemporal cor...
متن کاملAccuracy of velocity estimation by Reichardt correlators.
Although a great deal of experimental evidence supports the notion of a Reichardt correlator as a mechanism for biological motion detection, the correlator does not signal true image velocity. This study examines the accuracy with which realistic Reichardt correlators can provide velocity estimates in an organism's natural visual environment. The predictable statistics of natural images imply a...
متن کاملStimulus contrast and the Reichardt detector
The direction of a drifting grating can become more easily identified when a stationary, flickering grating, with the same spatial and temporal frequencies, is added to it. This amplification has been accepted as evidence that motion perception depends on the product of visual signals elicited before and after a target changes position, as computed by a Reichardt detector. However, amplificatio...
متن کاملThe Paterson-kelly Syndrome.
Dysphagia localized to the post-cricoid region occurring mainly in middle-aged women was first fully described in the papers of Paterson (1919) and Kelly (1919). Kelly noted an association with anaemia, superficial glossitis, and angular stomatitis, while Paterson remarked on " the not infrequent supervention of malignant disease at the mouth of the gullet." Vinson (1922) observed the developme...
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ژورنال
عنوان ژورنال: Vivat Academia
سال: 2011
ISSN: 1575-2844
DOI: 10.15178/va.2011.117.149-150