A high performance parallel DCT with OpenCL on heterogeneous computing environment

Kim, Cheong Ghil; Choi, Yong Soo

doi:10.1007/s11042-012-1028-x

Cited by 14 publications

(5 citation statements)

References 12 publications

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“…Research has confirmed that GHRM practices improve green performance [3]. Moreover, enterprises implementing official green management systems (i.e., GHRM) indicated a high level of green performance [32].…”

Section: Ghrm and Environmental Performancementioning

confidence: 82%

“…However, a recent study [2] showed that research often concentrates on the environmental performance of large businesses with limited studies on small enterprises. Additionally, in the hospitality and tourism context, studies often focus on the environmental practices management from two sides: either customer perspective [3] or performance, it is crucial to examine the GHRM practices by leadership or enterprise management. This is because the high-performance HRM practices by leadership directly and significantly affect employee ability, opportunity and motivation as well as their performance [19]; hence overall green innovation and environmental performance of enterprises [2].…”

Section: Introductionmentioning

confidence: 99%

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Influences of Green Human Resources Management on Environmental Performance in Small Lodging Enterprises: The Role of Green Innovation

2020

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Small lodging enterprises encompass a major proportion of the lodging industry worldwide. Nonetheless, limited research has addressed the HRM-innovation-performance link on these enterprises. This research draws on ability, motivation, opportunity (AMO) theory and resource-based view (RBV) theory to examine the influences of green human resources management (GHRM) practices by owner-managers of small lodging enterprises on their enterprises’ green innovation and environmental performance. More specifically, the research examines the direct influence of GHRM on the environmental performance of small lodging enterprises and the indirect influence through green innovation. A self-administered questionnaire was given to owner-managers of small lodging enterprises in Greater Cairo, Egypt. The results of structural equation modeling (SEM) showed direct, positive and significant influences of owner-managers’ green ability, motivation and opportunity on both enterprise green innovation and environmental performance. The ability of owner-managers was the most influential GHRM practices on both green innovation and environmental performance. Moreover, the results showed that the influence of GHRM on environmental performance was doubled with green innovation, reflecting the value and vital role of green innovation in small lodging enterprises’ environmental performance. Several policy-level, theoretical and practical implications are identified and discussed.

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Section: Ghrm and Environmental Performancementioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Influences of Green Human Resources Management on Environmental Performance in Small Lodging Enterprises: The Role of Green Innovation

2020

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“…Color space transformation can be applied to each pixel independently. Meanwhile, The DCT already has the efficiency algorithm to realize the data paralleling [10].…”

Section: Preprocessingmentioning

confidence: 99%

An OpenCL Parallelized Traffic Sign Recognition

Kang¹,

Cai²,

Guo³

et al. 2018

dtcse

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Traffic sign detection and recognition (TSDR) plays crucial roles in advanced driving assistant system(ADAS). In this work, we propose an OpenCL parallelized TSDR method to address the time-consuming challenge. The method employs AdaBoost algorithm for traffic sign detection and Fisherface algorithm for the traffic sign recognition. The Haar feature extraction and Adaboost algorithm are accelerated by sliding windows paralleling and stage classifier group scheduling strategies. The results of experimental work reveal that our approach offers about 12x speed-up for 1920x1080 resolution, which effectively compress the computation time.

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“…In the meantime, recent advances of CPU performance on speed and architecture can be expected to bring an alternative way of improving the calculation of disparity map. In the market, multi-core processor architecture has emerged as a dominant trend in desk-top PCs while preserving the CPU clock speed between 3 GHz and 4 GHz [19][20][21]. This performance enhancement allows a single chip to increase its processing capability without requiring a complex system.…”

Section: Fig 2 Disparity Calculationmentioning

confidence: 99%

Improved Disparity Map Computation on Stereoscopic Streaming Video with Multi-core Parallel Implementation

2015

KSII TIIS

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Stereo vision has become an important technical issue in the field of 3D imaging, machine vision, robotics, image analysis, and so on. The depth map extraction from stereo video is a key technology of stereoscopic 3D video requiring stereo correspondence algorithms. This is the matching process of the similarity measure for each disparity value, followed by an aggregation and optimization step. Since it requires a lot of computational power, there are significant speed-performance advantages when exploiting parallel processing available on processors. In this situation, multi-core CPU may allow many parallel programming technologies to be realized in users computing devices. This paper proposes parallel implementations for calculating disparity map using a shared memory programming and exploiting the streaming SIMD extension technology. By doing so, we can take advantage both of the hardware and software features of multi-core processor. For the performance evaluation, we implemented a parallel SAD algorithm with OpenMP and SSE2. Their processing speeds are compared with non parallel version on stereoscopic streaming video. The experimental results show that both technologies have a significant effect on the performance and achieve great improvements on processing speed.

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A high performance parallel DCT with OpenCL on heterogeneous computing environment

Cited by 14 publications

References 12 publications

Influences of Green Human Resources Management on Environmental Performance in Small Lodging Enterprises: The Role of Green Innovation

Influences of Green Human Resources Management on Environmental Performance in Small Lodging Enterprises: The Role of Green Innovation

An OpenCL Parallelized Traffic Sign Recognition

Improved Disparity Map Computation on Stereoscopic Streaming Video with Multi-core Parallel Implementation

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