Journal of the Optical Society of America最新文献_第5页

Modeling surface color discrimination under different lighting environments using image chromatic statistics and convolutional neural networks. 利用图像色彩统计和卷积神经网络对不同光照环境下的表面颜色判别进行建模。

Journal of the Optical Society of America Pub Date : 2023-02-15 DOI: 10.1364/josaa.4799861

Samuel Ponting, Takuma Morimoto, Hannah E Smithson

引用次数: 2

Measuring ocular aberrations in the peripheral visual field using Hartmann-Shack aberrometry: errata 用哈特曼-夏克像差法测量外围视野的眼像差:勘误表

Journal of the Optical Society of America Pub Date : 2008-09-17 DOI: 10.1364/JOSAA.25.002467

D. Atchison, D. Scott, W. Charman

引用次数: 46

Eye movements and neural remapping during fusion of misaligned random-dot stereograms. 错位随机点立体图融合过程中的眼球运动和神经重映射。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001665

M T Hyson, B Julesz, D H Fender

{"title":"Eye movements and neural remapping during fusion of misaligned random-dot stereograms.","authors":"M T Hyson, B Julesz, D H Fender","doi":"10.1364/josa.73.001665","DOIUrl":"https://doi.org/10.1364/josa.73.001665","url":null,"abstract":"Fender and Julesz [J. Opt. Soc. Am. 57, 819 (1967)] found that fused retinally stabilized binocular line targets could be misaligned on the two retinas in the temporalward direction by at least 30 min of arc without loss of fusion and stereopsis and that random-dot stereograms could be misaligned 2 deg before fusion was lost. To test these results in normal vision, we recorded eye motions of four observers while they viewed a random-dot stereogram that subtended about 10 deg. The observers misaligned overlaid vectograph stereo images by moving them apart in a temporalward direction until fusion was lost. They then returned the vectographs to the overlaid position. Throughout this cycle the observers reported at frequent intervals if they could perceive strong or weak depth, loss of depth, or loss of fusion. For some observers the image separation could be increased to 5 deg beyond parallel before fusion was lost. The visual axes diverged to follow the image centers and varied from overconverged to overdiverged with respect to the image centers while the observers still reported depth and fusion. We call the difference between the image separation and eye vergence the vergence error. If a vergence error persisted for at least 10 sec without loss of the percepts of fusion and depth, we postulate that neutral remapping occurred that compensated for the retinal misalignment. We found that the average maximum neural remapping was 3.0 deg.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"73 12","pages":"1665-73"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1364/josa.73.001665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17717754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 30

Independence of orientation and size in spatial discriminations. 空间区分中方向和大小的独立性。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001691

C A Burbeck, D Regan

引用次数: 84

Color-rendering capacity of illumination. 照明的显色能力。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001709

H Xu

引用次数: 7

Detection of coherent movement in peripherally viewed random-dot patterns. 检测周边观察的随机点模式的相干运动。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001674

W A van de Grind, A J van Doorn, J J Koenderink

{"title":"Detection of coherent movement in peripherally viewed random-dot patterns.","authors":"W A van de Grind, A J van Doorn, J J Koenderink","doi":"10.1364/josa.73.001674","DOIUrl":"https://doi.org/10.1364/josa.73.001674","url":null,"abstract":"We studied the detection of coherent motion in stroboscopically moving random-dot patterns for foveal vision and at eccentricities of 6, 12, 24, and 48 deg in the temporal visual field. Threshold signal-to-noise ratios (SNR's) were determined as a function of velocity for a range of stimulus sizes. It was found that the motion-detection performance is roughly invariant throughout the temporal visual field, provided that the stimuli are scaled according to the cortical magnification factor to obtain equivalent cortical sizes and velocities at all eccentricities. The maximum field velocity compatible with the percept of coherent motion increased about linearly with the width of the square stimuli. At this high-velocity threshold any pixel crossed the field in five to nine equal steps with a constant total crossing time of 50-90 msec, regardless of stimulus size or eccentricity. The lowest SNR values were reached at the optimal or tuning velocity V0. They approached the amazingly low values of 0.04-0.05 for large stimuli and at all eccentricities. Regardless of stimulus size, the parameter V0 increased about linearly with eccentricity from roughly 1 deg sec-1 at the fovea to some 8 deg sec-1 at 48 deg in the temporal visual field.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"73 12","pages":"1674-83"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1364/josa.73.001674","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17717755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 107

Spatial-frequency discrimination and detection: comparison of postadaptation thresholds. 空间频率识别与检测:适应后阈值的比较。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001684

D Regan, K I Beverley

{"title":"Spatial-frequency discrimination and detection: comparison of postadaptation thresholds.","authors":"D Regan, K I Beverley","doi":"10.1364/josa.73.001684","DOIUrl":"https://doi.org/10.1364/josa.73.001684","url":null,"abstract":"We found that inspecting a sine-wave grating elevated threshold for spatial-frequency discrimination as it does for contrast detection, but discrimination threshold was maximally elevated at about twice the adapting frequency, where detection threshold was little affected; and detection threshold was maximally elevated at the adapting frequency, where discrimination threshold was not elevated at all. Orientation tuning was roughly similar for contrast and for discrimination threshold elevations; elevations fell by half at between 7 and 17 deg from the adapting orientation. We compared our findings with the predictions of three models of discrimination: (1) The data are inconsistent with the idea that the most strongly stimulated channels are the most important channels for discrimination. (2) With an additional assumption, the Hirsch-Hylton scaled-lattice model could account for our finding that discrimination threshold elevations are asymmetric. (3) With no additional assumptions, the idea that discrimination is determined by the relative activities of multiple overlapping spatial-frequency channels or size-tuned neurons can account for our finding that discrimination thresholds are asymmetric. We propose a physiologically based discrimination model: Asymmetrically tuned cortical cells feed a ratio-tuned neural mechanism whose properties are formally analogous to those of ratio-tuned neurons that have recently been found in cat visual cortex. The linear relation between firing frequency and contrast can explain why discrimination threshold is substantially independent of contrast.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"73 12","pages":"1684-90"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1364/josa.73.001684","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17717756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 99

Effects of high-contrast peripheral patterns on the detection threshold of sinusoidal targets. 高对比度外周图像对正弦目标检测阈值的影响。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001695

Y Ejima, S Takahashi

引用次数: 10

Optics of photorefraction: orthogonal and isotropic methods. 光折射光学:正交法和各向同性法。

Journal of the Optical Society of America Pub Date : 1983-12-01 DOI: 10.1364/josa.73.001701

H C Howland, O Braddick, J Atkinson, B Howland

引用次数: 77

Light distribution on the retina of a wide-angle theoretical eye. 广角理论眼视网膜上的光分布。

Journal of the Optical Society of America Pub Date : 1983-11-01 DOI: 10.1364/josa.73.001544

A C Kooijman

引用次数: 207