Results 261 to 270 of about 18,673 (292)

Adaptive Scale Mean-Shift Tracking with Gradient Histogram

2019
The mean-shift (MS) tracking is fast, is easy to implement, and performs well in many conditions especially for object with rotation and deformation. But the existing MS-like algorithms always have inferior performance for two reasons: the loss of pixel’s neighborhood information and lack of template update and scale estimation.
Changqing Xie, Wenjing Kang, Gongliang Liu   +2 more
openaire   +1 more source

A Histogram shifting-based blind reversible data hiding method with a histogram peak estimator

2012 International Symposium on Communications and Information Technologies (ISCIT), 2012
This paper proposes a simple but efficient method which is free from memorizing side information, for histogram shifting-based reversible data hiding (HS-RDH). To hide data into an image, a HS-RDH method modifies particular pixel values in the image, based on its tonal distribution, and the method not only extracts hidden data but also recovers the ...
openaire   +1 more source

Reversible Data Hiding Using Histogram Shifting in Small Blocks

2010 IEEE International Conference on Communications, 2010
This paper proposes a new approach based on the Histogram Shifting Algorithm (HSA) to reversible data hiding in bitmap image. The embedding is not carried out in the whole image but in small blocks in order to enhance the capacity. Firstly, the blocks are classified, and then, coding methods specific to each type of block are designed.
Xiao Bo, Lizhi Ying, Yongfeng Huang 0001
openaire   +1 more source

GPR Image Enhancement Based on Frequency Shifting and Histogram Dissimilarity

IEEE Geoscience and Remote Sensing Letters, 2018
In the ground-penetrating radar (GPR) B-scan images, various noise sources are superimposed due to the ruggedness of the surface, sensor vibration, and multiple reflections. Additionally, the intensity of the received signals from small-size or low-metal-content landmines is low. Thus, it is difficult to accurately detect buried mines.
Minju Kim, Seong-Dae Kim, Jonghun Hahm, Donghyun Kim, Soon-Ho Choi   +4 more
openaire   +1 more source

Improved Weighted Histogram for Illumination Invariant Mean-shift Tracking

Proceedings of the 2014 Indian Conference on Computer Vision Graphics and Image Processing, 2014
Object tracking is a critical task in surveillance and activity analysis. One of the major issues in visual target tracking is variation in illumination. In this paper, we propose an improved weighted histogram approach for mean shift tracking to achieve illumination invariance.
Gargi S. Phadke, Rajbabu Velmurugan
openaire   +1 more source

Reversible Data Hiding Base on Histogram Shift for 3D Vertex

Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2007), 2007
Watermarking is a very active research field and its application to 2D still images and audio signals have been widely used also, but watermarking of 3D mesh object has not been heavily researched, reversible 3D watermarking especially. This paper proposes a reversible data hiding scheme for 3D vertex.
Chang-Yun Jhou, Jeng-Shyang Pan 0001, Ding Chou   +2 more
openaire   +1 more source

Improved Histogram-Shifting-Imitated Reversible Data Hiding Scheme

2015 12th International Conference on Information Technology - New Generations, 2015
Wang et al. proposed a histogram shifting imitation based reversible data hiding scheme in 2013. They used the peak points of image intensity-based segments, instead of utilizing the peak point of an histogram. Their scheme has the limitation of the embedding capacity due to the embedding method. In this paper, we propose an improved data hiding scheme
Pyung-Han Kim, Dae-Soo Kim, Kee-Young Yoo   +2 more
openaire   +1 more source

Improved Reversible Data Hiding Based on Residue Histogram Shifting

2012 Sixth International Conference on Genetic and Evolutionary Computing, 2012
This paper proposes an improved reversible data hiding method for grayscale images. Specifically, this method integrates the superiority of two existing schemes to improve secret data capacity. the main idea of this method is to classify image blocks into smooth or complex ones and then to implement disparate reversible data hiding schemes on them.
Wen-Chuan Wu, Yu-Chieh Wu
openaire   +1 more source

Reversible watermarking based on interpolation error histogram shifting

2010 5th International Symposium on Telecommunications, 2010
A reversible data hiding technique with high capacity of data embedding is presented in this paper. Using both difference expansion and histogram shifting methods at the same time we have improved Luo et al.'s method to increase the amount of data that can be embedded into the host image.
M.A.M. Abadi, Habibollah Danyali, Mohammad Sadegh Helfroush   +2 more
openaire   +1 more source

A survey on histogram shifting techniques in reversible data hiding

2014 IEEE International Advance Computing Conference (IACC), 2014
Reversible data hiding is latest research area in field of data hiding. In RDH (Reversible data hiding), the data to be hidden is embedded in the cover image and at the extraction side both hidden secret and cover image is reconstructed without any distortion.
Cheenu Bansal, Preeti Gupta
openaire   +1 more source