Citations Only: Recent submissions
Now showing items 561-580 of 990
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Head movement estimation for wearable eye tracker
(Association for Computing Machinery, 2004)In the study of eye movements in natural tasks, where subjects are able to freely move in their environment, it is desirable to capture a video of the surroundings of the subject not limited to a small field of view as ... -
Building a lightweight eyetracking headgear
(Association for Computing Machinery, 2004)Eyetracking systems that use video-based cameras to monitor the eye and scene can be made significantly smaller thanks to tiny micro-lens video cameras. Pupil detection algorithms are generally implemented in hardware, ... -
Methods for characterizing CRT displays
(Elsevier Science B.V., Amsterdam, 1996-05)Computer-controlled CRT displays can be described by a two-stage model. The first stage consists of a linear transformation matrix relating radiometric scalars of each channel with either spectral radiance or tristimulus ... -
An accurate characterization of CRT monitor (II) proposal for an extension to CIE method and its verification
(The Optical Society of Japan, co-published with Springer-Verlag GmbH, 2001-09)According to the ICC specification that is widely used for storing colorimetric characteristics of imaging devices for the current color management systems (CMSs), CRT monitor characteristics can be described by the tone ... -
Oculomotor behavior and perceptual strategies in complex tasks
(Elsevier Science, 2001-11)While we know a great deal about the dynamics and characteristics of eye movements in relatively simple tasks performed under reduced laboratory conditions, we know less about oculomotor behavior in complex, multi-step ... -
An accurate characterization of CRT Monitor (I) verifications of past studies and clarifications of Gamma
(The Optical Society of Japan, co-published with Springer-Verlag GmbH, 2001-09)CRT monitors are widely used to view images on the Internet. The color images on the computer graphic display can be printed out or displayed on other monitors through the Internet, and color matching between the original ... -
The coordination of eye, head, and hand movements in a natural task
(Springer Verlag, 2001-08)Relatively little is known about movements of the eyes, head, and hands in natural tasks. Normal behavior requires spatial and temporal coordination of the movements in more complex circumstances than are typically ... -
Relative significance of the terms in the CIEDE2000 and CIE94 color-difference formulas
(Optical Society of America, 2004-12)CIELAB-based color-difference formulas are used to improve the prediction of visually perceived color differences through the introduction of various corrections to CIELAB. In our study we analyze the relative importance ... -
Two-electron reduction of (n^6-Naphthalene) tricarbonylchromium. Haptotropic rearrangement to the (n^4-Naphthalene)tricarbonylchromium dianion
(American Chemical Society, 1987-02-11)The electrochemical and chemical reduction of (n^6-naphthalene)tricarbonylchromium is a two-electron ECE reduction. The chemical step is a haptotropic rearrangement, which leads ultimately to the (n^4-naphthalene)tricarb ... -
Subpixel sensitivity maps for a back-illuminated charge-coupled device and the effects of nonuniform response on measurement accuracy
(International Society for Optical Engineering (SPIE), 2002-06)A measurement program designed to investigate the variations in sensitivity of focal plane arrays on a subpixel scale has produced such information for a front-illuminated CCD device, results for which have been previously ... -
Focal plane detector array developments
(International Society for Optical Engineering (SPIE), 2002-06)n/a -
Subpixel sensitivity map for a charge-coupled device sensor
(International Society for Optical Engineering (SPIE), 1998-03)The sensitivity across a solid state detector array varies as a result of differences in transmission, diffusion and scattering properties over the sensor. This variation will occur over a range of scale lengths and its ... -
Quantum efficiency overestimation and deterministic cross talk resulting from interpixel capacitance
(International Society for Optical Engineering (SPIE), 2006-07)Pixels in both hybridized and monolithic complementary metal-oxide semiconductor (CMOS) detector arrays may couple capacitively to their neighboring pixels. This “interpixel capacitance” can signifi- cantly distort the ... -
The influence of boundary information on the perception of color
(Optical Society of America, 1997-05)The integration of color and form to produce a unified percept is a central problem in vision research. We know that the spatial arrangement of colored stimuli influences their detectability. In the gap effect, for ... -
Neural network applications to the color scanner and printer calibrations
(International Society for Optical Engineering (SPIE), 1992-04-01)In the context of colorimetric matching, the intent of color scanner and printer calibrations is to characterize the device-dependent responses to the device-independent representations such as CIEXYZ or CIE 1976 L*a*b* ... -
Spectrally opponent inputs to the human luminance pathway: slow +M and −L cone inputs revealed by intense long-wavelength adaptation
(The Physiological Society, 2005-07-01)The nature of the inputs to achromatic luminance flicker perception was explored psychophysically by measuring middle- (M-) and long-wavelength-sensitive (L-) cone modulation sensitivities, M- and L-cone phase delays, and ... -
Influence of nonuniform charge-coupled device pixel response on aperture photometry
(The International Society for Optical Engineering (SPIE), 2001-02)The extensive use of charge-coupled devices (CCDs) in astronomical imaging and spectroscopic applications has resulted in techniques being developed to correct for sensitivity variations attributable to the focal plane ... -
Paradoxical shifts in human color sensitivity caused by constructive and destructive interference between signals from the same cone class
(Cambridge University Press, 2006-05)Paradoxical shifts in human color (spectral) sensitivity occur on deep-red (658 nm) background fields. As the radiance of the deep-red background is increased from low to moderate levels, the spectral sensitivity for ... -
Linear pixel shuffling for image processing, an introduction
(International Society for Optical Engineering (SPIE), 1993-04)We investigate a method of ordering pixels (the elements of a rectangular matrix) based on an arithmetic progression with wrap-around (modular arithmetic). For appropriate choices of the progression's parameters, based on ... -
Empirical formula for creating error bars for the method of paired comparison
(International Society for Optical Engineering (SPIE), 2006-01)The method of paired comparison based on Thurstone’s case V of his law of comparative judgments is often used as a psychophysical method to derive interval scales of perceptual qualities in imaging applications. However, ...