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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1972 1
1981 1
1984 1
1986 1
1988 1
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1997 1
1998 1
1999 1
2005 2
2006 1
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2013 1
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Page 1
Grating and plaid chrominance motion influences the suppressed ocular following response.
Guo K, Benson PJ. Guo K, et al. Neuroreport. 1999 Feb 5;10(2):387-92. doi: 10.1097/00001756-199902050-00032. Neuroreport. 1999. PMID: 10203340
Nevertheless, early suppressed ocular following responses to isoluminant motion continue to be titrated by stimulus velocity and spatial frequency. Motion defined by 60% luminance contrast gratings and plaids generated a motion signal gain of 60% over chrominance mo …
Nevertheless, early suppressed ocular following responses to isoluminant motion continue to be titrated by stimulus velocity and spatial …
PulseGAN: Learning to Generate Realistic Pulse Waveforms in Remote Photoplethysmography.
Song R, Chen H, Cheng J, Li C, Liu Y, Chen X. Song R, et al. IEEE J Biomed Health Inform. 2021 May;25(5):1373-1384. doi: 10.1109/JBHI.2021.3051176. Epub 2021 May 11. IEEE J Biomed Health Inform. 2021. PMID: 33434140
In this paper, a new framework based on generative adversarial network, called PulseGAN, is introduced to generate realistic rPPG pulse signals through denoising the chrominance (CHROM) signals. Considering that the cardiac signal is quasi-periodic and has apparent time- …
In this paper, a new framework based on generative adversarial network, called PulseGAN, is introduced to generate realistic rPPG pulse sign …
Influence of edge enhancement applied in endoscopic systems on sharpness and noise.
Geleijnse G, Rieger B. Geleijnse G, et al. J Biomed Opt. 2022 Oct;27(10):106001. doi: 10.1117/1.JBO.27.10.106001. J Biomed Opt. 2022. PMID: 36203241 Free PMC article.
Sharpness was characterized by observing the normalized modulation transfer function (MTF) and computing the spatial frequency at 50% MTF. The noise was measured on the gray patches and computed as a weighted sum of variances from the luminance and two chrominance c …
Sharpness was characterized by observing the normalized modulation transfer function (MTF) and computing the spatial frequency at 50% …
Color and luminance information in natural scenes.
Párraga CA, Brelstaff G, Troscianko T, Moorehead IR. Párraga CA, et al. J Opt Soc Am A Opt Image Sci Vis. 1998 Mar;15(3):563-9. doi: 10.1364/josaa.15.000563. J Opt Soc Am A Opt Image Sci Vis. 1998. PMID: 9499586
Our analysis suggests that natural scenes are relatively rich in high-spatial-frequency chrominance information that does not appear to be transmitted by the human visual system. ...In addition, we graphically compare the ratios of luminance to chrominance me …
Our analysis suggests that natural scenes are relatively rich in high-spatial-frequency chrominance information that does not …
Linear demosaicing inspired by the human visual system.
Alleysson D, Süsstrunk S, Hérault J. Alleysson D, et al. IEEE Trans Image Process. 2005 Apr;14(4):439-49. doi: 10.1109/tip.2004.841200. IEEE Trans Image Process. 2005. PMID: 15825479 Free article.
We have exploited this analogy, defining a model that characterizes a one-color per spatial position image as a coding into luminance and chrominance of the corresponding three colors per spatial position image. Luminance is defined with full spatial resolution while ch …
We have exploited this analogy, defining a model that characterizes a one-color per spatial position image as a coding into luminance and …
Color image resolution conversion.
Vrhel M. Vrhel M. IEEE Trans Image Process. 2005 Mar;14(3):328-33. doi: 10.1109/tip.2004.841194. IEEE Trans Image Process. 2005. PMID: 15762330
We focus on an approach that takes advantage of the human visual system's color spatial frequency sensitivity. The algorithm performs an efficient least-squares (LS) resolution conversion for the luminance channel and a low-complexity pixel replication/reduction in the …
We focus on an approach that takes advantage of the human visual system's color spatial frequency sensitivity. The algorithm performs …
Compression-Dependent Transform-Domain Downward Conversion for Block-Based Image Coding.
Zhu S, He Z, Meng X, Zhou J, Zeng B. Zhu S, et al. IEEE Trans Image Process. 2018 Jun;27(6):2635-2649. doi: 10.1109/TIP.2018.2806281. IEEE Trans Image Process. 2018. PMID: 29533900
Transform-domain downward conversion (TDDC) for image coding is usually implemented by discarding some high-frequency components from each transformed block. As a result, a block of fewer coefficients is formed, and a lower compression cost is achieved due to the coding of …
Transform-domain downward conversion (TDDC) for image coding is usually implemented by discarding some high-frequency components from …
Color and luminance: independent frequency shifts.
Favreau OE, Cavanagh P. Favreau OE, et al. Science. 1981 May 15;212(4496):831-2. doi: 10.1126/science.7221569. Science. 1981. PMID: 7221569
Simultaneous opposite spatial frequency shifts can be obtained in chrominance and luminance channels. The chrominance shift cannot be transferred interocularly. Chrominance and luminance channels seem to perform similar but independent spatial frequ …
Simultaneous opposite spatial frequency shifts can be obtained in chrominance and luminance channels. The chrominance s …
Perceived velocity of moving chromatic gratings.
Cavanagh P, Tyler CW, Favreau OE. Cavanagh P, et al. J Opt Soc Am A. 1984 Aug;1(8):893-9. doi: 10.1364/josaa.1.000893. J Opt Soc Am A. 1984. PMID: 6470841
In the top half of the display was a sinusoidal-luminance grating of the same spatial frequency and 95% contrast that drifted in the opposite direction. ...Perceived velocity appears to be a weighted average of luminance and chrominance velocity information....
In the top half of the display was a sinusoidal-luminance grating of the same spatial frequency and 95% contrast that drifted in the …
Spatial frequency tuning of single units in macaque supragranular striate cortex.
Born RT, Tootell RB. Born RT, et al. Proc Natl Acad Sci U S A. 1991 Aug 15;88(16):7066-70. doi: 10.1073/pnas.88.16.7066. Proc Natl Acad Sci U S A. 1991. PMID: 1651492 Free PMC article.
Beyond this, we found no evidence for an orderly mapping of spatial frequency optima. At blob-interblob borders, we observed abrupt shifts from low, relatively uniform spatial frequency optima (blobs) to higher optima that varied unsystematically (interblobs). The s …
Beyond this, we found no evidence for an orderly mapping of spatial frequency optima. At blob-interblob borders, we observed abrupt s …
21 results