Results 1 to 10 of about 63,357 (302)
Effect of blur adaptation on blur sensitivity in myopes
Vision Research, 2006 Although blur adaptation in myopia has been investigated, knowledge regarding its effect on blur sensitivity remains unknown. In the present study, changes in three blur thresholds (i.e., noticeable, bothersome, and non-resolvable blur) were assessed ...
Kenneth J Ciuffreda +1 more
exaly +4 more sources
“Bothersome blur”: A functional unit of blur perception
Vision Research, 2006 Knowledge regarding the amount of blur perceived to be “bothersome” to an individual, namely that which is assumed to be annoying and to adversely affect task performance, remains limited.
Kenneth J Ciuffreda +1 more
exaly +4 more sources
Classifying Discriminative Features for Blur Detection
IEEE Transactions on Cybernetics, 2016 Blur detection in a single image is challenging especially when the blur is spatially-varying. Developing discriminative blur features is an open problem. In this paper, we propose a new kernel-specific feature vector consisting of the information of a
Yanwei Pang, Xuelong Li
exaly +2 more sources
Analysis of Blur Measure Operators for Single Image Blur Segmentation
Applied Sciences (Switzerland), 2018 Blur detection and segmentation for a single image without any prior information is a challenging task. Numerous techniques for blur detection and segmentation have been proposed in the literature to ultimately restore the sharp images.
Usman Ali +2 more
exaly +2 more sources
Handling Gaussian blur without deconvolution
Pattern Recognition, 2020 The paper presents a new theory of invariants to Gaussian blur. Unlike earlier methods, the blur kernel may be arbitrary oriented, scaled and elongated.
Jitka Kostkova +2 more
exaly +1 more source
IEEE Access, 2021 This paper presents a 3 in 1 standalone FPGA system which can perform color image blur detection in parallel with compression and encryption. Both blur detection and compression are based on the 3-level Haar wavelet transform, which is used as a common ...
Ahmed A. Rezk +3 more
doaj +1 more source
Blur detection of digital forgery using mathematical morphology
网络与信息安全学报, 2017 Aiming at the fuzzy operation commonly used in image tampering,a new fuzzy detection scheme using smooth filter preserving edges and mathematical morphological methods was studied.By using the sharpening function and denoising function of both methods ...
Hui-fen HUANG,Zhi-hong WANG,Yu-hong CHANG
doaj +3 more sources
Algorithm for choosing the best frame in a video stream in the task of identity document recognition [PDF]
Компьютерная оптика, 2021 During the process of document recognition in a video stream using a mobile device camera, the image quality of the document varies greatly from frame to frame.
M.A. Aliev +3 more
doaj +1 more source
Virtual reality boxing: Gaze-contingent manipulation of stimulus properties using blur
Frontiers in Psychology, 2022 It has been reported that behavior of experts and novices in various sporting tasks is impervious to the introduction of blur. However, studies have used diverse methods of blurring the visual stimulus (i.e., dioptric blur and Gaussian blur), and tasks ...
Annabelle Limballe +4 more
doaj +1 more source
Method of multilayer object sectioning based on a light scattering model
Компьютерная оптика, 2023 We discuss a problem of reconstructing (sectioning) multilayer object images in observed images obtained by focusing the imaging system on each layer and containing spurious blurry images of neighboring layers.
S.D. Bazhitov +3 more
doaj +1 more source