Search Results - "Nayar, S.K."

Contrast restoration of weather degraded images by Narasimhan, S.G., Nayar, S.K.

“…Images of outdoor scenes captured in bad weather suffer from poor contrast. Under bad weather conditions, the light reaching a camera is severely scattered by…”
Get full text

Modeling the space of camera response functions by Grossberg, M.D., Nayar, S.K.

“…Many vision applications require precise measurement of scene radiance. The function relating scene radiance to image intensity of an imaging system is called…”
Get full text

Motion-based motion deblurring by Nayar, S.K., Ben-Ezra, M.

“…Motion blur due to camera motion can significantly degrade the quality of an image. Since the path of the camera motion can be arbitrary, deblurring of motion…”
Get full text

Determining the camera response from images: what is knowable? by Grossberg, M.D., Nayar, S.K.

“…An image acquired by a camera consists of measured intensity values which are related to scene radiance by a function called the camera response function…”
Get full text

Multiplexing for Optimal Lighting by Schechner, Y.Y., Nayar, S.K., Belhumeur, P.N.

“…Imaging of objects under variable lighting directions is an important and frequent practice in computer vision, machine vision, and image-based rendering…”
Get full text

Chromatic framework for vision in bad weather by Narasimhan, S.G., Nayar, S.K.

“…Conventional vision systems are designed to perform in clear weather. However, any outdoor vision system is incomplete without mechanisms that guarantee…”
Get full text

Nonmetric calibration of wide-angle lenses and polycameras by Swaminathan, R., Nayar, S.K.

“…Images taken with wide-angle cameras tend to have severe distortions which pull points towards the optical center. This paper proposes a simple method for…”
Get full text

Multiresolution histograms and their use for recognition by Hadjidemetriou, E., Grossberg, M.D., Nayar, S.K.

“…The histogram of image intensities is used extensively for recognition and for retrieval of images and video from visual databases. A single image histogram,…”
Get full text

Computational Cameras: Redefining the Image by Nayar, S.K.

“…Computational cameras use unconventional optics and software to produce new forms of visual information, including wide field-of-view images, high dynamic…”
Get full text

Video super-resolution using controlled subpixel detector shifts by Ben-Ezra, M., Zomet, A., Nayar, S.K.

“…Video cameras must produce images at a reasonable frame-rate and with a reasonable depth of field. These requirements impose fundamental physical limits on the…”
Get full text

Generalized mosaicing: wide field of view multispectral imaging by Schechner, Y.Y., Nayar, S.K.

“…We present an approach to significantly enhance the spectral resolution of imaging systems by generalizing image mosaicing. A filter transmitting spatially…”
Get full text

A simple algorithm for nearest neighbor search in high dimensions by Nene, S.A., Nayar, S.K.

“…The problem of finding the closest point in high-dimensional spaces is common in pattern recognition. Unfortunately, the complexity of most existing search…”
Get full text

Enhancing resolution along multiple imaging dimensions using assorted pixels by Narasimhan, S.G., Nayar, S.K.

“…Multisampled imaging is a general framework for using pixels on an image detector to simultaneously sample multiple dimensions of imaging (space, time,…”
Get full text

Rectified catadioptric stereo sensors by Gluckman, J., Nayar, S.K.

“…It has been shown elsewhere how mirrors can be used to capture stereo images with a single camera, an approach termed catadioptric stereo. We present novel…”
Get full text

Clustered blockwise PCA for representing visual data by Nishino, K., Nayar, S.K., Jebara, T.

“…Principal component analysis (PCA) is extensively used in computer vision and image processing. Since it provides the optimal linear subspace in a least-square…”
Get full text

Surface reflection: physical and geometrical perspectives by Nayar, S.K., Ikeuchi, K., Kanade, T.

“…Reflectance models based on physical optics and geometrical optics are studied. Specifically, the authors consider the Beckmann-Spizzichino (physical optics)…”
Get full text

Generalized mosaicing: polarization panorama by Schechner, Y.Y., Nayar, S.K.

“…We present an approach to image the polarization state of object points in a wide field of view, while enhancing the radiometric dynamic range of imaging…”
Get full text

Structured light methods for underwater imaging: light stripe scanning and photometric stereo by Narasimhan, S.G., Nayar, S.K.

“…Virtually all structured light methods in computer vision assume that the scene and the sources are immersed in pure air and that light is neither scattered…”
Get full text

Minimal operator set for passive depth from defocus by Watanabe, M., Nayar, S.K.

“…A fundamental problem in depth from defocus is the measurement of relative defocus between images. We propose a class of broadband operators that, when used…”
Get full text

The global burden of trauma during the COVID-19 pandemic: A scoping review by Waseem, S., Nayar, S.K., Hull, P., Carrothers, A., Rawal, J., Chou, D., Khanduja, V.

“…Purpose; The COVID-19 pandemic has necessitated profound adaptations in the delivery of healthcare to manage a rise in critically unwell patients. In an…”
Get full text