Results 131 to 140 of about 305 (154)

Fast fully 3D image reconstruction using planograms

2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149), 2002
Presents a method of performing fast and accurate 3D backprojection using only Fourier transform operations based on the geometry of planar detector arrays. This approach, the 'planogram method' is a 3D extension of the 2D-linogram technique of Edholm.
Brasse, David, Kinahan, Paul E., Clackdoyle, Rolf, Defrise, Michel, Comtat, Claude, Townsend, David   +5 more
openaire   +2 more sources

System and gram matrices of 3-D planogram data

IEEE Transactions on Nuclear Science, 2003
This paper addresses the topic of geometric voxel-based approaches to forward and inverse problems of image reconstruction from planogram data. We investigate 2- and 3-D (two-, three-dimensional) planar detector configurations for which we reduce complex geometrical calculations of Gram and system matrices to a series of simple transformations like ...
I.G. Kazantsev, S. Matej, R.M. Lewitt
openaire   +1 more source

Data Consistency for Linograms and Planograms

IEEE Transactions on Radiation and Plasma Medical Sciences, 2018
Linograms are a well-known sampling scheme for the 2-D Radon transform, with several attractive mathematical properties, and planograms are a 3-D version of them. This paper describes necessary and sufficient consistency conditions for a given function to be the linogram or planogram of some density function. In the linogram case, for both parallel and
openaire   +2 more sources

Planogram matching control in grocery products by image processing

2016 24th Signal Processing and Communication Application Conference (SIU), 2016
The placement of products in grocery shelves is designed according to several marketing strategies. These designs are represented by schemas named as planograms. Currently, the planogram matching control of grocery products are counducted by a personel manually and causes time loss.
Unsal Gokdag, Mehmet Yasin Akpinar, Yusuf Sinan Akgul   +2 more
openaire   +1 more source

Enhancing Planogram Compliance in Retail Stores through an Image Processing System

2025 Intelligent Methods, Systems, and Applications​ (IMSA)
Irem Ucal Sari, Ayse Oncu, Duygu Beril Karabulut   +2 more
exaly   +2 more sources

Inversion of 2D planogram data for finite-length detectors

IEEE Symposium Conference Record Nuclear Science 2004., 2005
In this work we investigate the problem of inverting data acquired from finite-length linear detectors in the 2D case. Image reconstruction algorithms using planogram data are usually derived under the initial assumption that the detectors are infinitely long and complete data can be acquired.
I.G. Kazantsev, S. Matej, R.M. Lewitt
openaire   +1 more source

Fast Fully 3-D Image Reconstruction in PET Using Planograms

IEEE Transactions on Medical Imaging, 2004
We present a method of performing fast and accurate three-dimensional (3-D) backprojection using only Fourier transform operations for line-integral data acquired by planar detector arrays in positron emission tomography. This approach is a 3-D extension of the two-dimensional (2-D) linogram technique of Edholm.
David Brasse, Paul E. Kinahan, Rolf Clackdoyle, Michel Defrise, Claude Comtat, David W. Townsend   +5 more
openaire   +3 more sources

Detection of key points of electronic planograms by means of artificial intelligence

Biomedical Radioelectronics
Among the diseases of the feet, flat feet are the most common cause of disorders of the musculoskeletal system. Flat feet are characterized by flattening of the arches of the foot, decreased cushioning function, changes in the biomechanics of walking and pain syndromes.
V.V. Mikhailishin, L.M. Smirnova, V.A. Khazov   +2 more
openaire   +1 more source

Promises And Perils For Planogram Compliance In A World With Generative Artificial Intelligence

International Journal of Business & Management Studies
In retail, planograms can have a significant impact on a customer’s experience and a company’s bottom line. Effective planograms can help retailers improve decision making, better understand product trends, and respond to customer needs. Given the dynamics of the retail environment, one of the major issues with planograms is compliance.
Lynne Patten, Paul Brown
openaire   +1 more source

An Investigation of Automated Planograms Using a Simulated Annealing Based Hyper-Heuristic

2005
This paper formulates the shelf space allocation problem as a non-linear function of the product net profit and store-inventory. We show that this model is an extension of multi-knapsack problem, which is itself an NP-hard problem. A two-stage relaxation is carried out to get an upper bound of the model.
Ruibin Bai, Graham Kendall
openaire   +1 more source