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Results 11 - 20
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263
F (2008) Automatic object segmentation algorithms for sprite coding using MPEG-4
- University of Zagreb
"... Abstract – Object-based video coding, as standardized in MPEG-4 Part 2, can result in superior performance in comparison to common hybrid motion-compensated DCT-based approaches. We consider sprite coding which increases significantly the objective as well as the subjective quality of the coded vid ..."
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Cited by 1 (1 self)
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Abstract – Object-based video coding, as standardized in MPEG-4 Part 2, can result in superior performance in comparison to common hybrid motion-compensated DCT-based approaches. We consider sprite coding which increases significantly the objective as well as the subjective quality of the coded
Context-based adaptive binary arithmetic coding in the h.264/avc video compression standard. Circuits and Systems for VideoTechnology, IEEETransactions on
"... (CABAC) as a normative part of the new ITU-T/ISO/IEC standard H.264/AVC for video compression is presented. By combining an adaptive binary arithmetic coding technique with context modeling, a high degree of adaptation and redundancy reduction is achieved. The CABAC framework also includes a novel l ..."
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Cited by 213 (12 self)
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of test sequences representing typical material used in broadcast applications and for a range of acceptable video quality of about 30 to 38 dB, average bit-rate savings of 9%–14 % are achieved. Index Terms—Binary arithmetic coding, CABAC, context modeling, entropy coding, H.264, MPEG-4 AVC. I.
Watermarking of Uncompressed and Compressed Video
, 1998
"... this paper, methods for embedding additive digital watermarks into uncompressed and compressed video sequences are presented. The basic principle borrows from spread spectrum communications. It consists of addition of an encrypted, pseudo-noise signal to the video that is invisible, statistically un ..."
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Cited by 189 (9 self)
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. Although an existing MPEG-2 bitstream is partly altered, the scheme avoids visible artifacts by addition of a drift compensation signal. The proposed method is robust and of much lower complexity than a complete decoding process followed by watermarking in the pixel domain and re-encoding. Fast
MPEG-4 natural audio coding
, 2000
"... MPEG-4 audio represents a new kind of audio coding standard. Unlike its predecessors, MPEG-1 and MPEG-2 high-quality audio coding, and unlike the speech coding standards which have been completed by the ITU-T, it describes not a single or small set of highly e$cient compression schemes but a complet ..."
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complete toolbox to do everything from low bit-rate speech coding to high-quality audio coding or music synthesis. The natural coding part within MPEG-4 audio describes traditional type speech and high-quality audio coding algorithms and their combination to enable new functionalities like scalability
MPEG-4 Structured Audio Systems
"... The MPEG-4 standard has been proposed to provide high quality audio and video content over the Internet. This content is represented in the form of audiovisual objects. However, different parts of the audiovisual scene are encoded seperately depending on the nature of the data to be encoded. The sta ..."
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The MPEG-4 standard has been proposed to provide high quality audio and video content over the Internet. This content is represented in the form of audiovisual objects. However, different parts of the audiovisual scene are encoded seperately depending on the nature of the data to be encoded
MPEG-4 Addressing and ACQ Function
, 2001
"... This paper proposes architectural solutions that deal with two of the most crucial performance requirements imposed by the MPEG-4 standard, namely high data throughput and high computational power. To obtain higher data throughput, we define a new data storage facility with a specific data organizat ..."
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). This instruction supports the identically named ACQ function, which is an essential part of the shape encoding process in MPEG-4. We have implemented the ACQ function on a dedicated systolic structure and its FPGA realization suggests 62 ns operating latency. Utilizing this result, we have made performance
Video Watermarking Scheme resistant to MPEG Compression
"... In this article an extension of the watermarking scheme, based on key sequence, proposed by Lin et al. is presented. This new scheme is designed taking into account the temporal modifications of the MPEG-2, MPEG-4 part 2 and MPEG4 Part 10 compressions. Besides the redundancy control of Lin is modifi ..."
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In this article an extension of the watermarking scheme, based on key sequence, proposed by Lin et al. is presented. This new scheme is designed taking into account the temporal modifications of the MPEG-2, MPEG-4 part 2 and MPEG4 Part 10 compressions. Besides the redundancy control of Lin
AudioBIFS: The MPEG-4 Standard for Effects Processing
- PROC. DAFX98 WORKSHOP ON DIGITAL AUDIO EFFECTS
, 1998
"... We present a tutorial overview of the AudioBIFS system, part of the Binary Format for Scene ..."
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Cited by 7 (1 self)
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We present a tutorial overview of the AudioBIFS system, part of the Binary Format for Scene
Quality assessment of the MPEG-4 scalable video CODEC
, 906
"... In this paper, the performance of the emerging MPEG-4 SVC CODEC is evaluated. In the first part, a brief introduction on the subject of quality assessment and the development of the MPEG-4 SVC CODEC is given. After that, the used test methodologies are described in detail, followed by an explanation ..."
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Cited by 1 (0 self)
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In this paper, the performance of the emerging MPEG-4 SVC CODEC is evaluated. In the first part, a brief introduction on the subject of quality assessment and the development of the MPEG-4 SVC CODEC is given. After that, the used test methodologies are described in detail, followed
Title: Vectorization of MPEG4 Kernels on the CVP
"... Abstract: This report investigates the vectorization of key MPEG4 kernels on a co vector processor (CVP) that aims for low cost and low power, which is currently developed in Philips Research. We focus on vectorization of the computationally intensive parts of MPEG4, namely motion estimation and (I) ..."
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Abstract: This report investigates the vectorization of key MPEG4 kernels on a co vector processor (CVP) that aims for low cost and low power, which is currently developed in Philips Research. We focus on vectorization of the computationally intensive parts of MPEG4, namely motion estimation and (I
Results 11 - 20
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263
