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Software and hardware HEVC encoding
2017 International Conference on Systems, Signals and Image Processing (IWSSIP), 2017In comparison with older standards, High Efficiency Video Coding (HEVC) significantly improves coding efficiency. At the same time, it increases computational complexity of coding and therefore encoding takes a longer time. In this paper, the usage of different implementations of HEVC is proposed where some of them can take advantage of a multicore ...
Jan Kufa, Tomas Kratochvil
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Complexity-scalable HEVC encoding
2016 Picture Coding Symposium (PCS), 2016HEVC encoders impose several challenges in resource-constrained embedded applications, especially under real-time and battery constraints. This paper proposes a complexity-scalable encoder that is able to achieve considerable time savings while maintaining an efficient rate-distortion-complexity tradeoff.
Mateus Grellert +2 more
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Video thumbnail extraction for HEVC
Signal Processing: Image Communication, 2017Abstract This paper proposes a thumbnail quality enhancement algorithm that uses a predefined weight table. Conventional thumbnail extraction algorithms in high efficiency video coding use a simple downsampling method to produce thumbnail images with low complexity, resulting in thumbnail quality deterioration.
Wonjin Lee, Gwanggil Jeon, Jechang Jeong
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IEEE international Symposium on Broadband Multimedia Systems and Broadcasting, 2012
All transformed coefficients in a TU (Transform Unit) are equally quantized in the HEVC (High Efficiency Video Coding) standard. Such an equal quantization is not efficient because the transformed coefficients in the TU are not equally distributed. Moreover, the quantized coefficients scanning order method in the HEVC standard takes into account the ...
Ryeong-hee Gweon, Yung-Lyul Lee
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All transformed coefficients in a TU (Transform Unit) are equally quantized in the HEVC (High Efficiency Video Coding) standard. Such an equal quantization is not efficient because the transformed coefficients in the TU are not equally distributed. Moreover, the quantized coefficients scanning order method in the HEVC standard takes into account the ...
Ryeong-hee Gweon, Yung-Lyul Lee
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2013 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), 2013
Unlike previous video coding standards such as MPEG-2/H.262 and MPEG-4 AVC/H.264, the new video coding standard HEVC does not require a complementary field pair to be consecutive in decoding order. Each field is stored into a separate field buffer. However, some display systems only take frame buffers as input, so that two field buffers have to be ...
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Unlike previous video coding standards such as MPEG-2/H.262 and MPEG-4 AVC/H.264, the new video coding standard HEVC does not require a complementary field pair to be consecutive in decoding order. Each field is stored into a separate field buffer. However, some display systems only take frame buffers as input, so that two field buffers have to be ...
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Saliency based perceptual HEVC
2014 IEEE International Conference on Multimedia and Expo Workshops (ICMEW), 2014Saliency represents the probability of human attention over the image therefore is important in understanding the importance of different areas in the image. In this paper, we consider how to utilize the saliency information in HEVC video coding. The graph-based visual saliency is incorporated with the quantization control in HEVC to reduce the bit ...
Yiming Li 0001 +4 more
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HEVC Implementation for IoT Applications
2018 30th International Conference on Microelectronics (ICM), 2018Effective compression guarantees that IoT will continue spreading to cover various devices. High Efficiency Video Coding (HEVC), also known as H.265, is the most recent video coding standard; it introduces new coding methods compared to older popular standards. Such a change has a great impact on both encoder complexity and speed as it provides bitrate
Mahmoud Salah +5 more
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CGS quality scalability for HEVC
2011 IEEE 13th International Workshop on Multimedia Signal Processing, 2011Scalable video coding provides an efficient way to serve video contents at different quality levels. Based on the development of emerging High Efficiency Video Coding (HEVC), we propose two coarse granular scalable (CGS) video coding schemes here. In scheme A, we present a multi-loop solution in which the fully reconstructed base pictures are utilized ...
Zhongbo Shi +2 more
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Piecewise DC prediction in HEVC
Signal Processing: Image Communication, 2014In this paper, we propose an improved DC prediction method for high-efficiency video coding (HEVC) intra coding. The technique involves the application of pixel-wise predictors rather than block-based predictor in the DC mode. In HEVC, the pixels of neighboring reconstructed blocks are used to support multiple directional spatial prediction modes and ...
Kibaek Kim, Gwanggil Jeon, Jechang Jeong
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Bilateral adaptive quantization in HEVC
Multimedia Tools and Applications, 2018In this paper, we proposed an adaptive quantization algorithm for High Efficiency Video Coding (HEVC) to boost the encoding performance. The transform coefficients in a Transform Unit (TU) inherit the energy concentration property. However, they are equally quantized before entropy coding.
Sanchun Li, Rui Song 0003
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