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Consumer Electronics, IEEE Transactions on

Issue 1 • Date February 2012

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Displaying Results 1 - 25 of 28
  • IEEE Transactions on Consumer Electronics - Table of contents

    Page(s): c1
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  • IEEE Consumer Electronics Society

    Page(s): c2
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  • 2012 IEEE Consumer Electronics Society Administrative Committee

    Page(s): i
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  • 2012 IEEE Consumer Electronics Society Officers and Committee Chairs

    Page(s): ii
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  • Message from the Editor

    Page(s): iii
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  • Dual block truncation coding for overdriving of full HD LCD driver

    Page(s): 1 - 7
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3111 KB) |  | HTML iconHTML  

    This paper presents an image coding method for overdriving of a 10bit Full HD LCD display considering the chip size of TCON (Timing Controller) and real-time operation. The proposed method is an adaptive scheme of AM-BTC (Absolute Moment Block Truncation Coding). It splits a sample block into two sub-blocks considering the color level distribution of the sample block and applies AMBTC to each sub-block. Experimental results show that the proposed method is superior to the conventional method in both objective and subjective visual quality. View full abstract»

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  • Future spectrum demands will impact DTV and GPS receiver designs

    Page(s): 8 - 14
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (361 KB) |  | HTML iconHTML  

    Inefficient spectrum usage was historically acceptable because receiver complexity and cost could be minimized. Today, new demands for RF spectrum, especially to accommodate new broadband wireless services, require a change in the design philosophy of consumer receivers due to ever increasing interference in our limited RF spectrum. View full abstract»

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  • Interference to digital broadband communications and spread spectrum communications

    Page(s): 15 - 22
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (687 KB) |  | HTML iconHTML  

    Interference from DTV signals to cellular 700 MHz wireless phones may limit their acceptance by the public. Such interference has been reported to the FCC. The interference mechanism involved is 3rd order non-linearity of the analog front end of cellular phones. Interference to GPS signal reception has been documented by a Technical Working Group. The author believes that the mechanism is also 3rd order non-linearity of the analog front end of GPS receivers. In both situations, RF selectivity and mixer linearity must be improved. View full abstract»

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  • Disaggregation of home energy display data using probabilistic approach

    Page(s): 23 - 31
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (327 KB) |  | HTML iconHTML  

    Home energy displays are emerging home energy management devices. Their energy saving potential is limited, because most display whole-home electricity consumption data. We propose a new approach to disaggregation electricity consumption by individual appliances and/or end uses that would enhance the effectiveness of home energy displays. The proposed method decomposes a system of appliance models into tuplets of appliances overlapping in power draw. Each tuplet is disaggregated using a modified Viterbi algorithm. In this way, the complexity of the disaggregation algorithm is linearly proportional to the number of appliances. The superior accuracy of the method is illustrated by a simulation example and by actual household data. View full abstract»

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  • System identification and energy-aware processor utilization control

    Page(s): 32 - 37
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (447 KB) |  | HTML iconHTML  

    Minimization of power consumption is essential for battery-powered computing systems. This paper proposes an innovative solution for the processor power management problem. The proposed technique does not require accurate power consumption and performance model of the processor. The proposed solution exploits feedback control principles and the controller design is optimized for a given workload. Experimental results obtained from a case study are presented demonstrating, usefulness and the feasibility of the proposed solution. View full abstract»

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  • Removing path-switching cost in video delivery over multiple paths in mobile networks

    Page(s): 38 - 46
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3448 KB) |  | HTML iconHTML  

    The pace at which powerful portable wireless consumer devices such as smartphones and tablets have been adopted has not been matched by the ability of mobile networks to deliver high-quality video streams consistently to such nomadic users. In this work, we propose CMT-NEMO, a novel concurrent multipath transfer scheme for the delivery of scalable video content to users in multihomed mobile networks such as those expected to be found in public transport scenarios. Recent research in this context has shown that the single largest limiting factor for perceived video quality is the overhead introduced by path switching operations in multihomed mobile networks. CMT-NEMO eliminates the need for path switching and, by removing the associated path switching latency, provides a substantial performance improvement across a wide range of bandwidths and test sequences. An average Y-PSNR improvement of 5.9 dB is achieved when compared with previously proposed schemes. View full abstract»

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  • Building lighting automation through the integration of DALI with wireless sensor networks

    Page(s): 47 - 52
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (276 KB) |  | HTML iconHTML  

    This paper focuses on the integration of Digital Addressable Lighting Interface (DALI) devices in wireless sensor networks. Since different manufacturers usually deal with one aspect of building automation - e.g. heating ventilation and air conditioning, lighting control, different kinds of alarms, etc. - final building automation system has different subsystems which are finally taken to an integrated building management system. The cost of this process is consequently increased due to additional hardware investment. Our main purpose is to provide the end consumer with an economical fully centralized system in which home appliances are managed by an IEEE 802.15.4-based wireless sensor network. Not only is it necessary to focus on the initial investment, but maintenance and energy consumption costs must also be considered. This paper explains the developed system along with a brief introduction to usual building automation protocols. Finally it presents future work in this field. View full abstract»

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  • Live and time-shifted content delivery for dynamic broadcast: terminal aspects

    Page(s): 53 - 59
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1787 KB) |  | HTML iconHTML  

    In Dynamic Broadcast it is assumed that receivers provide an interface to both a broadcast network and a broadband network. In addition, they are expected to be equipped with a storage device. The receivers are capable of composing linear TV services of individual content items, which are either being received live via the broadcast or the broadband network or which are played back from a local storage device if they have been received before. Multiple content delivery mechanisms are supported, including live and pre-transmission of TV programs. Inside the receivers, a combined usage of one or more broadcast tuners, the broadband interface, and the local storage device is therefore required. In this paper, we discuss how the interaction of these devices can be managed in order to allow for the live and time-shifted delivery of TV content via dynamically changing distribution channels. Further, a system demonstrator is presented, which allows the seamless presentation of TV services in a Dynamic Broadcast environment, where live as well as time-shifted content delivery mechanisms are in use. View full abstract»

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  • Realistic IEEE 802.11e EDCA model for QoS-aware mobile cloud service provisioning

    Page(s): 60 - 68
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (619 KB) |  | HTML iconHTML  

    Since the population of smart mobile devices with broadband wireless LAN interfaces is explosively increasing, accurate and realistic modeling of real environment of IEEE 802.11e EDCA WLAN is essential for efficient provisioning of QoS-aware differentiated mobile cloud service provisioning. The existing analytical models of 802.11e EDCA, however, are not realistic because they are mostly based on a simple clean channel condition or simple frame error probability; they do not consider the different individual channel conditions and different frame error rates at each station. As a result, the accuracy of throughput estimation is poor. This paper proposes a realistic IEEE 802.11e EDCA mathematical model for QoS-aware differentiated multimedia mobile cloud services. The analytical model of EDCA is enhanced by i) pragmatic considerations of an individual station¿s channel condition and ii) correct frame error rate due to channel noise of individual station. The accuracy of the enhanced model is validated by a series of experiments in a real testbed with 5~21 WiFi stations. The accuracy of throughput estimation and frame delivery time has been greatly improved. View full abstract»

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  • Streaming-aware channel utilization improvement for wireless home networks

    Page(s): 69 - 77
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (954 KB) |  | HTML iconHTML  

    A wireless network of consumer electronic (CE) devices in a modern home, is typically running streaming services with heterogeneous bandwidth demands. Satisfying these demands offers the challenge of mapping them efficiently onto scarce wireless channel bandwidth. This mapping is supported by the IEEE 802.11e standard which provides cooperative and competitive distributed control for bandwidth assignment through a set of medium access control (MAC) mechanisms. While these mechanisms leverage priority arbitration for wireless channel usage, they are typically configured without taking the knowledge of streaming services into account thus resulting in suboptimal bandwidth utilization. This paper presents a streaming-aware wireless channel utilization policy. For defining and understanding the policy, a previous analytic model, which focuses mainly on the aspect of obtaining control of the channel, is extended with the aspect of retaining control according to application requirements. The model is simpler than previous works; it is compared with simulations and shown to be accurate. A utilization improvement of up to 18% is observed to be possible showing that such cross-layer optimization improves resource use1. View full abstract»

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  • Adaptive streaming of audiovisual content using MPEG DASH

    Page(s): 78 - 85
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (865 KB) |  | HTML iconHTML  

    HTTP streaming has become a cost effective means for multimedia delivery nowadays. In this paper, we study the use of MPEG DASH standard to stream audiovisual content. We first describe a novel estimation method for connection throughput. Then, employing the extensibility feature of DASH syntax, we present a systematic method for selecting the best audio and video alternatives given the estimated throughput. The experiments show that our solution is stable to short-term fluctuations while responding quickly to large fluctuations. View full abstract»

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  • Efficient logging of metadata using NVRAM for NAND flash based file system

    Page(s): 86 - 94
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1478 KB) |  | HTML iconHTML  

    In this work, we designed and implemented schemes that defer writing of metadata in order to realize an efficient and reliable NAND flash file system. The conventional NAND flash file systems synchronously write their metadata in the NAND flash for reliability; however, the synchronous writing of metadata generates excessive garbage. We propose the scheme for merging the writing of metadata so as to reduce the garbage of the NAND flash while ensuring file system consistency. The proposed scheme uses the non-volatile memory for synchronously logging modifications of the metadata. The logging can significantly reduce excessive metadata writing of NAND flash. Also, the last modified metadata can be recovered from a crash, after scanning logs in the non-volatile memory. We implemented the scheme for the deferred writing of metadata on top of a Linux OS. The evaluation results show that the proposed scheme greatly reduced the overall application time and the number of written pages across various benchmarks, compared to the conventional flash file system. View full abstract»

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  • Enhancing privacy and dynamic federation in IdM for consumer cloud computing

    Page(s): 95 - 103
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (866 KB) |  | HTML iconHTML  

    Consumer cloud computing paradigm has emerged as the natural evolution and integration of advances in several areas including distributed computing, service oriented architecture and consumer electronics. In this complex ecosystem, security and identity management challenges have cropped up, given their dynamism and heterogeneity. As a direct consequence, dynamic federated identity management with privacy improvements has arisen as an indispensable mechanism to enable the global scalability and usability that are required for the successful implantation of Cloud technologies. With these requirements in mind, we present an IdM architecture based on privacy and reputation extensions compliance with the SAMLv2/ID-FF standards1. View full abstract»

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  • Adaptive background generation for automatic detection of initial object region in multiple color-filter aperture camera-based surveillance system

    Page(s): 104 - 110
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (944 KB) |  | HTML iconHTML  

    In this paper, we present an adaptive background generation method for automatic selection of initial object regions, which realizes simultaneous object detection and depth estimation using multiple color-filter aperture (MCA) camera. Since the conventional background generation method does not fit the depth estimation using the MCA camera, we propose a novel color-based background generation method which can reduce interference in the object region for stable depth estimation. For efficient estimation of color shifting vectors in the extracted object region, a simplified elastic registration (ER) algorithm is used. The proposed simplified method is essential factor to realize realtime depth estimation and tracking, which is the primary condition for consumer applications. Finally, the object distance is determined by using the relationship between the pre-specified distance transformation function and the estimated shifting vectors of the corresponding object region. Although traditional depth estimation methods generally use dual cameras for stereo vision, the proposed method uses only a single camera for both object detection and depth estimation. Experimental results show that the proposed MCA camera-based object detection system can be used in a variety of consumer surveillance systems such as intelligent transport systems, 3D-based cameras and advanced safety vehicles. View full abstract»

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  • Adaptive defogging with color correction in the HSV color space for consumer surveillance system

    Page(s): 111 - 116
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2061 KB) |  | HTML iconHTML  

    Consumer video surveillance systems often suffer from bad weather conditions, observed objects lose visibility and contrast due to the presence of atmospheric haze, fog, and smoke. In this paper, we present an image defogging algorithm with color correction in the HSV color space for video processing. We first generate a modified transmission map of the image segmentation using multiphase level set formulation from the intensity (V) values. We also estimate atmospheric light in the intensity (V) values. The proposed method can significantly enhance the visibility of foggy video frames using the estimated atmospheric light and the modified transmission map. Another contribution of the proposed work is the compensation of color distortion between consecutive frames using the temporal difference ratio of HSV color channels. Experimental results show that the proposed method can be applied to consumer video surveillance systems for removing atmospheric artifacts without color distortion. View full abstract»

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  • Moving object detection for real-time augmented reality applications in a GPGPU

    Page(s): 117 - 125
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2219 KB) |  | HTML iconHTML  

    The last generation of consumer electronic devices is endowed with Augmented Reality (AR) tools. These tools require moving object detection strategies, which should be fast and efficient, to carry out higher level object analysis tasks. We propose a lightweight spatio-temporal-based non-parametric background-foreground modeling strategy in a General Purpose Graphics Processing Unit (GPGPU), which provides real-time high-quality results in a great variety of scenarios and is suitable for AR applications. View full abstract»

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  • Magic mirror table for social-emotion alleviation in the smart home

    Page(s): 126 - 131
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (979 KB) |  | HTML iconHTML  

    In this paper, we propose a prototype of smart furniture for the smart home-a magic mirror table. The proposed system has a camera to capture the viewer's facial expression. By analyzing the expressions, the system is able to determine the emotion of the viewer. If the viewer is in a negative emotion, the system then speaks positive sentences and plays the viewer's favorite music to alleviate his/her emotion. The experimental results confirm that the system is able to relieve the sad mood of the viewer. In addition, the proposed system can serve as a calendar for event reminding. View full abstract»

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  • Program associated 3D non-real-time service on terrestrial DTV

    Page(s): 132 - 136
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2919 KB) |  | HTML iconHTML  

    One of the unresolved problems in providing viable stereoscopic 3D video services based on terrestrial DTV is to carry additional video while maintaining existing 2D video quality within limited bandwidth. Mitigating this problem, our proposed 3D service incorporates ATSC Non- Real-Time (NRT) transmission scheme in which the additional video stream delivered in advance of use and stored for later consumption. At later time when transmitting an air AV program associating the additional video previously sent, a receiving device is able to play stereoscopic 3D video by combining real-time video and the stored additional video synchronously. In this paper, we propose backward compatible system for the 3D NRT service and show that our implementation successfully presents the new stereoscopic 3D video service based on Terrestrial DTV. View full abstract»

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  • 3D video compression based on high efficiency video coding

    Page(s): 137 - 145
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (535 KB) |  | HTML iconHTML  

    With the advent of autostereoscopic displays, questions rise on how to efficiently compress the video information needed by such displays. Additionally, for gradual market acceptance of this new technology it is valuable to have a solution offering forward compatibility with stereo 3D video as it is used nowadays. In this paper, a multiview compression scheme making use of the efficient single-view coding tools used in High Efficiency Video Coding (HEVC) is provided. Although efficient single view compression can be obtained with HEVC, a multiview adaptation of this standard under development is proposed, offering additional coding gains. On average, for the texture information, the total bitrate can be reduced by 37.2% compared to simulcast HEVC. For depth map compression, gains largely depend on the quality of the captured content. Additionally, a forward compatible solution is proposed offering the possibility for a gradual upgrade from H.264/AVC based stereoscopic 3D systems to an HEVC-based autostereoscopic environment. With the proposed system, significant rate savings compared to Multiview Video Coding (MVC) are presented. View full abstract»

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  • Efficient H.264/AVC software CAVLC decoder based on level length extraction

    Page(s): 146 - 153
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (587 KB) |  | HTML iconHTML  

    This paper presents a proposal for an efficient software CAVLC decoder architecture in H.264/AVC based on level length extraction (LLE). Especially, level-decoding in a CAVLC decoder is addressed. Its features are summarized in two parts: higher efficient pipeline processing of level decoding, and simultaneous multiple calculations of multiple level codes separated from level decoding loop using Single Instruction Multiple data (SIMD) instruction. The former is achieved by separating Level calculation from Level parsing based on the LLE scheme, and removing branch operations in the level decoding loop. These improve the pipelineprocessing efficiency. The latter removes Level calculation from the level decoding loop, and uses multiple Level calculations based on SIMD instruction. The proposed schemes emphasize the software architecture. They are therefore applicable to general computers. Consequently, they can also be integrated with other CAVLC opimization schemes for CoeffToken, TotalZeros, and RunBefore syntax elements. Based on results of evaluation experiments, we confirmed that the improved pipeline processing achieved 22% faster decoding speed compared with the conventional method, which used only the LLE scheme. The SIMD-based Level calculation also achieved a 38% faster decoder than before by integrating with the former part. View full abstract»

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Aims & Scope

The primary purpose for publishing the Transactions of the Consumer Electronics Society is to present to the membership and the engineering community in general, papers on new technology oriented to Consumer Electronics.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
R. Simon Sherratt
School Director for Teaching and Learning, School of Systems Engineering
The University of Reading
Reading, Berkshire  RG6 6AY  RG6 6AY  U.K.
r.s.sherratt@reading.ac.uk; sherratt@ieee.org
Phone:+44 (0) 118 3788588
Fax:+44 (0) 118 3788583