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Section: Publications & Resources
In this paper, the achievable secrecy rate of a relay-assisted massive multiple-input multiple-output (MIMO) downlink is investigated in the presence of a multi-antenna active/passive eavesdropper. The excess degrees-of-freedom offered by a massive MIMO base-station (BS) are exploited for sending artificial noise (AN) via random and null-space precoders.
Section: Publications & Resources
The procedure for extracting a cryptographic key from noisy sources, such as biometrics and physically uncloneable functions (PUFs), is known as fuzzy extractor (FE). Although FE constructions deal with discrete sources, most noisy sources are continuous. In the continuous case, it is required to transform the source to a discrete one.
Section: Publications & Resources
Publication: IEEE Transactions on Image Processing
The aim of this paper is to present a new method for skin tumor segmentation in the 3D ultrasound images. We consider a variational formulation, the energy of which combines a diffuse interface phase field model (regularization term) and a log-likelihood computed using nonparametric estimates (data attachment term).
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Section: Community & Involvement
What sparked your interest in speech and language processing?
Early on, I was amazed by the ambiguity of natural language, that so many sentences could in fact be parsed and understood in different ways, and yet we can often times easily communicate with each other and interpret what we hear or read with the intended semantics. Then I found out in college that speech and natural language is actually quite an active area for computer science.
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Section: Community & Involvement
This year was one of the largest ICASSP conferences that I have attended with more than 3,000 participants. During opening remarks, SPS president, Ali H. Sayed announced that the membership fees for students has been set to $1, there will be an open access journal for signal processing, IEEE SPS formal policy statement for commitment to diversity, and initiating an E-learning center which are great steps forward to create an open society.
Section: Publications & Resources
Publication: IEEE Transactions on Multimedia
Predicting articulatory movements from audio or text has diverse applications, such as speech visualization. Various approaches have been proposed to solve the acoustic-articulatory mapping problem. However, their precision is not high enough with only acoustic features available. Recently, deep neural network (DNN) has brought tremendous success in various fields, like speech recognition and image processing.
Section: Publications & Resources
Publication: IEEE Transactions on Multimedia
With the development of video coding technology, high-efficiency video coding (HEVC) has become a promising alternative, compared with the previous coding standards, for example, H.264. In general, H.264 to HEVC transcoding can be accomplished by fully H.264 decoding and fully HEVC encoding, which suffers from considerable time consumption on the brute-force search of the HEVC coding tree unit (CTU) partition for rate-distortion optimization (RDO).
Section: Publications & Resources
Publication: IEEE Transactions on Multimedia
The saliency detection technologies are very useful to analyze and extract important information from given multimedia data, and have already been extensively used in many multimedia applications. Past studies have revealed that utilizing the global cues is effective in saliency detection. Nevertheless, most of prior works mainly considered the single-scale segmentation when the global cues are employed. In this paper, we attempt to incorporate the multi-scale global cues for saliency detection problem.
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Section: Community & Involvement
Welcome to the first
Section: Publications & Resources
IEEE Signal Processing Society (SPS) President, Ali H. Sayed, is seeking nominations for the positions of Chair and Vice Chair of the IEEE SPS Fellow Evaluation Committee. The term of appointment for each position is one year, renewable (1 January 2020-31 December 2020).
