dct

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2008 BMW M3 Convertible DCT

Photo gallery:2008 BMW M3 ConvertibleWe reviewed the BMW M3 Coupe with a manual transmission and the full load of cabin tech back in April, but we couldn't pass up the opportunity to test out another one, this time the 2008 BMW M3 Convertible with the new double-clutch transmission. Although our...

Tags: PRODUCTIVITY, BMW M3, BMW AG, DCT, manual transmission, BMW M3 Coupe

Product reviews 2008-09-11

Forgent claims JPEG patent

Forgent claims JPEG patentDr. Wen Chen wasn't interested in patenting DCT / JPEG / MPEGI worked at Compression Labs 1992-1993 on the DirecTV project, an application of MPEG and ultimately of Dr. Wen Chen's work on DCT / JPEG. Dr. Wen Chen worked there at the same time, and...

Tags: Compression Labs, Wen Chen, DCT, JPEG, patent, CLI

Discussion threads 2004-03-31

Additional Resources

2008 Mitsubishi Lancer Evolution MR

Photo gallery:2008 Mitsubishi Lancer Evolution MREver since we saw the Mitsubishi Prototype-X at the 2007 Detroit auto show, the 2008 Mitsubishi Lancer Evolution has been at the top of our wish list. Well, near the top, right under the Nissan GT-R. Our desires for the car weren't diminished when we...

Tags: Compaq Evo, car, Mitsubishi Corp., STI

Product reviews 2008-09-16

Face Recognition Based On Overlapping DCT (zip)

Face Recognition Based On Overlapping DCT - Matlab source code. In the JPEG image compression algorithm, the input image is divided into 8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each block. The DCT coefficients are then quantized, coded, and transmitted. The JPEG receiver (or JPEG file...

Tags: Algorithm, Coefficient, JPEG, Face Recognition, Image, Luigi Rosa, DCT Coefficient, Feature Vector, Engineering

Software downloads 2008-08-31

Microsoft sending mixed messages about Windows futures with 'Fiji'?

Microsoft sending mixed messages about Windows futures with 'Fiji'?This isn't even strictly a Beta Tester issueMicrosoft realised that MCE systems just weren't flying out the door and then correctly perceived that it makes more sense to bundle it with Vista so that OEMs can either make a "home entertainment center"...

Tags: Microsoft Windows Vista (Longhorn), Microsoft Windows, Fiji, Microsoft Windows Vista, Microsoft Corp., beta tester, Windows future, MCE

Discussion threads 2008-08-05

Express Dictate for Mac (zip)

Express Dictate is a computer based voice recorder that works like a dictaphone. It lets you use your Mac to send dictation to your typist by email, Internet or over the computer network. This dictation software can dramatically improve the turn around time for work and, most importantly, lets you...

Tags: Apple Macintosh, Signal Processing, Computer, NCH Software, Express Dictate, Productivity

Software downloads 2008-05-28

Switch (exe)

Switch is a audio file converter for Windows. It can convert mp3, wav or wma format and more to the format of your choice. Switch Converter is very easy to use. Just add the files you want to convert to the list, select the format you want to use, and...

Tags: WMA, OGG, WAV, MP3, Digital Music, Digital Media, Personal Technology, Consumer Electronics

Software downloads 2008-01-04

Express Dictate (exe)

Express Dictate is a computer-based dictaphone that lets you dictate using your computer or a portable recorder. You can then send your recordings to your typist or assistant by e-mail, Internet, or over your computer network. Express Dictate uses digital audio processing and compression technology to record and transmit the...

Tags: Signal Processing, Digital Audio, Computer, Express Dictate, Productivity, Internet, Digital Music, Digital Media, Personal Technology, Consumer Electronics

Software downloads 2007-12-12

Everything you've read about Vista DRM is wrong (Part 3)

This is the final installment in my series debunking Peter Gutmann's widely read and undeservedly cited paper on Vista content protection. (If you missed Part 1 and Part 2, go read them before you dive into this conclusion.) Today, I want to deal head-on with one of the most...

Tags: Paper, HDMI, PC, Digital-rights Management, Output, NVidia Corp., Codec, Microsoft Windows Vista, Video, Microsoft Corp., Hardware, 1080p, Peter Gutmann, HD, Laptop Magazine, DVI, D-CINEMA, Microsoft Windows Vista (Longhorn), Microsoft Windows, Operating Systems, Software, Ed Bott

Blog posts 2007-09-20

Express Scribe (exe)

Express Scribe is a transcriber that features variable speed playback, foot pedal operation, speech recognition, file management and more. Ideal for playing dictation. Features include ability to play compressed wav or dct files, variable speed constant pitch playback, ability to control playback with foot pedals or system wide hot keys,...

Tags: Playback, Word-processor, Express Scribe, Speech Recognition, Word Processors, Emerging Technologies, Software

Software downloads 2007-08-30

Data Center Transformation: Driving Business Value and Innovation

The Data Center Transformation DCT framework from Symantec Consulting Services provides a programmatic approach to help large enterprises address the technical challenges of data center infrastructure complexity while delivering management and operational excellence at a reduced cost. This webcast provides an opportunity for IT executives and data center managers to...

Tags: Innovation, Data Center, Data Centers, Storage, Hardware, Data Management

Webcasts 2007-08-30

Testing a Radio Network Controller in UMTS Infrastructure

The company wanted to test a Radio Network Controller RNC in a UMTS infrastructure using Catapult DCT-2000 and quick ramp-up of the geographically diversified Aricent team on the customer's test bed/configuration and Catapult DCT-2000. The challenge was to set up an extensive testing laboratory at the customer's location. With its...

Tags: UMTS, Network, Radio, Cellular Phones, Networking, Consumer Electronics, Personal Technology

Case studies 2006-10-26

Transcoding to FGS Streams From H.264/AVC Hierarchical B-Pictures

This paper presents a transcoder which transcodes to FGS streams from H.264/AVC hierarchical B-pictures. First, the DCT-domain architecture is designed for fast FGS transcoding. Then, the paper proposes a mode decision method in DCT domain to achieve a trade-off between the performances at low bit-rate and high bit-rate. Experimental results...

Tags: Performance, IEEE, Performance Management, Human Resources, Workforce Management

White papers 2006-09-12

JPEG Steganalysis Using Empirical Transition Matrix in Block DCT Domain

This paper presents a novel steganalysis scheme to effectively attack the JPEG steganographic schemes. The proposed method exploits the correlations between block DCT coefficients in both intra-block and inter-block sense. This paper uses Markov empirical transition matrices to capture these dependencies. The experimental results demonstrate that the proposed scheme is...

Tags: Method, JPEG, Domain, Scheme

White papers 2006-07-08

Neural Networks - DCT for Face Identification (zip)

Neural Networks - DCT for Face Identification. Matlab source code. High information redundancy and correlation in face images result in inefficiencies when such images are used directly for recognition. Discrete cosine transforms are used to reduce image information redundancy because only a subset of the transform coefficients are necessary to...

Tags: Coefficient, Network, Neural Network, Matlab

Software downloads 2006-06-07

Drift-Free Switching of Compressed Video Bitstreams at Predictive Frames

Two schemes are proposed to efficiently compress video contents into bitstreams that support drift-free switching at predictive frames. They are inspired by the original SP coding scheme presented in the early H.26L. First, the authors propose a Flex SP coding scheme in which the prediction signal of the SP frame...

Tags: Video, IEEE, Corporate Communications, Marketing

White papers 2006-05-01

A thousand processors on one chip

A thousand processors on one chipQuestion:One of the more intractable problems in signal processing apps, and a real gate in multi-processor machines, is the ability to do matrix transpositions. A decade ago, some friends of mine and I designed a device that could do an 8x8 transpose on a...

Tags: Processors, Kilocore, one-chip, processor

Discussion threads 2006-04-05

USPTO to re-examine JPEG patent

USPTO to re-examine JPEG patentJPEG patent's claim is invalidI personnaly worked between 1985 and 1989 on image compression algorithms in France, long before the JPEG group issued its first standard. This work was held there as a research project with European financements as an "Eureka" project.The company for which I...

Tags: U.S. Patent and Trademark Office, JPEG, patent, JPEG patent

Discussion threads 2006-02-06

Characterizing and Estimating Block DCT Image Compression Quantization Parameters

This paper describes an algorithm for estimating quantization matrices from raster images previously compressed with JPEG. First, the space of commonly used quantization matrices is statistically characterized using over 15000 image files. The insights from this characterization are used to design the algorithm. The two stage algorithm first applies a...

Tags: Algorithm, IEEE, Engineering

White papers 2005-10-30

Digital Watermarking (zip)

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection and authentication of multimedia data in a networked environment, since it makes possible to identify the...

Tags: Technique, Multimedia, Image, Productivity

Software downloads 2005-08-26