offline
Last seen: Jul 15, 2014 10:33 AM EDT
Hire Me!
Rate: $20.00 USD/hour
Follow Invite to Project
 
Browse Similar Freelancers:

luchenggang

Dr. Lu

Username: luchenggang

  • Has made a deposit.
  • Has verified their email address.
  • Has completed their profile.
  • Has not verified their secure phone number.
  • Verified
  • Payment is verified.

Location: Hangzhou, China

Member since: January 2012

Reputation:

4.4/5

(8 reviews)

4.4
[see more]

No user has recommended this freelancer.

My projects:

  • [Sealed]
    2.2
    Profile image for Seller okpanachi78

    okpanachi78

    May 31, 2014

    Total lack of care towards time. Project was not delivered completely. Unwilling to explain his work ?? At some point was at a loss as to how to go about the work.

    Project Description:[This is a Private Project. You must be logged in to view the Project Description]
    [more]
  • $300.00 USD
    5.0
    Profile image for Seller basketmen

    basketmen

    Sep 21, 2013

    Nice programmer, nice person, fast response, A+++++

    Project Description:N/A
    [more]
  • [Sealed]
    0.0
    Profile image for Seller ricklein

    ricklein [ Incomplete Report ]

    Aug 2, 2013

    This project is way over the deadline and very far from completion. It should be closed.

    luchenggang's reply:

    Never seen employer like him, no necessary conversation to explain his requirements though after my release of enoughsincere attitude.

    Project Description:This is for a Windows 2008 R2 server, but should run on any Windows box such as WIndows 7, WIndows 8, or WIndows Server. Microsoft Office 2007 is installed, however, upgrading to 2010 is permissible if necessary to arrive at a solution...
    [more]
  • $250.00 USD
    3.0
    Profile image for Seller pintui

    pintui

    Mar 31, 2013

    Diligent worker. But final solution used a GPL-licenesd library which I explicitly requested not to be used in the project requirements. After finding the GPL code (I was also not notified of it), I had the option to pay extra for a different solution. But that would have pushed it out of budget.I also had to waste my own time getting the solution to work on my machine, due to all dependencies not being included.Dr. Lu seems good for certain type of projects. He definitely is familiar with audio technologies. But I'd be very hesitant to hire again, especially for any projects which might have commercial basis.

    Project Description:I want a way to dynamically play instrumental melodies (using SoundFont instruments, or something similar) in 3d positional sound, where the instruments can have different points of origin in 3d space, and can move in 3d space independently of one another...
    [more]
  • $30.00 USD
    5.0
    Profile image for Seller bigman99

    bigman99

    Oct 13, 2012

    fast work and done on time and on budget. Thanks again. would hire again!!

    Project Description:i have a small project that i need to finish and im not understanding the math of how to make this work right. I have screen shots of the instructions provided (some info in the instructions was inserted...
    [more]
  • $350.00 USD
    5.0
    Profile image for Seller rcd1954

    rcd1954

    Sep 9, 2012

    Good and very patient.

    Project Description:Need VB.NET project written for Visual Studio 2010 that will watch the audio in for specific tones, record an audio file when detected and save the file out as a .wav file 1. Watch for 1615 Hz and/or 1785 Hz tones or other 170 Hz FSK signal 2...
    [more]
  • $250.00 USD
    5.0
    Profile image for Seller webmaster2074

    webmaster2074

    Aug 8, 2012

    Excellent freelancer, very helpful and dedicated in providing solutions.

    Project Description:N/A
    [more]
  • $200.00 USD
    4.6
    Profile image for Seller PLREX

    PLREX

    Jun 5, 2012

    Good communication on a daily basis. He finished as promised. Recommended!.

    Project Description:We want to create a C++ class (compatible with visual studio 2010) for decoding aac internet audio streaming on the fly (we only require deconding, and not playing the audio) at any supported bit rate...
    [more]
    luchenggang has not completed any projects.
  • $554 USD In Progress

    Hello bidders.Need a audio recognition library (please review attached files). Requirements:1. Each wav file contains 4-6 Russian chars (sounds)2. Lib should be usable from c#, .Net 4.03. We need at least 50% success rate on recognition4. We will test success rate on a set of 1000 samples wav files (will be provided for you).Please bid only the persons who already have an experience in audio recognitionWill provide additional details via PMThank you

    [more]
  • $500 USD In Progress

    Dear Mr. Lu,Happy New Year of the snake! I hope you are doing well and having a relaxing holiday.I contacted you last year because I had an image algorithm development work. That project was delayed but now I"m planning to do it again. You impressed me with your knowledge in imaging and I wonder if you would still be interested in it?The assignment is about image registration - how to align an image sequence. I need a solution that is not based on feature descriptors, because they don"t always provide accurate results, especially when images have different exposure settings.The attached presentation defines the requirements in more details. Please have a look at it and give your opinion.I can send several sample pictures later.Xie xie!

    [more]
  • $200 USD 26 days ago

    An algorithm that tracks changes on an active website.

  • $5555 USD 29 days ago

    HII"m looking for a machine learning expert partner with our start-up. We are developing a disruptive news summarization tech.Thanks

  • $10 USD Jun 13, 2014

    Price depends what kind of service you could offer me,Depends per pcs and how fast you can do?Good read no fail or wrong numbers and straght contact with each other.

  • $377 USD Jan 22, 2014

    i want a source code include comment in the program for mobile hand recognition using android, opencv, java/c/c++.just only basic recognition for using hand in the mobile. But not allow to use hand gesture, fingerprint to recognition.For the budget , that was about $30-$250 USD or little bit more is also OK ..Thank you.

    [more]
  • €120 EUR Dec 31, 2013

    I need to add some buttons to an existing OpenTK environment. The buttons need to have a honeycomb shape, show a icon and label. When hovering, the button"s background should change color and the icon should be replaced. Please see the attachment for an example of how the buttons should look like.

    [more]
  • $1500 USD Nov 12, 2013

    Personal Amplifier Specifications1.Use smart phone and headset as an audiometer:i.Generate tones to test user’s hearing capacity at several different frequencies.ii.Decibel/volume level is adjusted at each tested frequencies so that user can appropriately distinguish tone.iii.Perform test and adjustment on each ear separately.iv.Final test with previously adjusted levels on both ears to confirm setting.v.Test results in a personalized audiogram that is stored for user.vi.Different environmental/situational background noise(ie. noisy street, movie theater, lecture hall) can be simulated and test can be repeated as in (i~v) and stored as preset situational modes for user.2.Volume and frequency settings can be adjusted for phone calls and music/movie player used within the phone can be adjust accordingly to results of testing in (1).3.Use phone as listening device:i.When app is launched, adjusted volume/frequency levels according to test results from (1) allow phone to be a listening device that receives sound through the microphone(internal or external) and outputs adjusted sound to headphones.ii.Other preset modes, with adjustments from results from (1.v) can also be selected by user according to environment/situation that user is currently in.iii.Supplement mode also allows for volume/frequency adjusted on-the-fly for situations that do not fall into the preset modes and for situations where sudden background noise is present(ie. noisy street construction or loud nearby talker)

    [more]
  • $416 USD Oct 21, 2013

    "I need an already done software or someone who can make it:1) Decoding magnetic stripe binary data (5-bit, 7-bit-8bit) recorded in waveform (PCM uncompressed)2) Supporting interrupted swipe recordings, in other words, WAV recordings with gaps/silenceSoftware must be able to decode a WAV or mp3 file. The sound in the wav file is magnetic stripe. If you can do this, please let me know urgent.So basicly I need a tool that will decode magnetic stripe audio sound into a text (numbers ) . The tool must be able to clear the noise in the sound and support interrupted data signal inside of sound file !! . THE sound contains large file of intrerrupted swipe data from track2... which will look like this:1: 1234567890123456789=1234567890123456789?2: 1234567890123456789=1234567890123456789?3: 1234567890123456789=1234567890123456789?4: 1234567890123456789=1234567890123456789?5: 1234567890123456789=1234567890123456789?.....""Have a look at an existing open source project to as a starting point. Note this existing project lacks basic signal processing and editing such as remove dc offset, remove section on silence, high-pass filter or filtering to enhance F2F signal, auto amplification level control (dynamic AGC), and any other signal processing techniques commonly used for signal enhancement. Note also he the existing projects does not provide intermdiate raw binary output, in case parity and/or LRC or LUHM errors need to be corrected manually, due to missing/incorrect bit or characters.THIS IS NOT a project suitable for anyone that does NOT have extensive previous experince with wav file manipulations concerning signal processing methodologies operating on sequencial PCM data points. You should electronics engineering expertise yourself, or be working with somesone in highly knowledgeable in digital signal processing. Be prepared to demonstrate these capabilities vis previous project examples and references, or don"t bother to quote.If you already have this software and can demo it"s use, that would be ideal.Existing open source example: http://code.google.com/p/dot-net-wave-reader/"Please post ONLY if you really know how to do this and can do in a short-time

    [more]
  • $250 USD Jul 22, 2013

    We need some software code to classify voice into native English and non native English speakers. We prefer Matlab, however, other programming languages are welcomed.

  • $3000 USD Jun 17, 2013

    decode wav magnetic card data

  • $250 USD Apr 18, 2013

    I need an already done software or someone who can make it. Software must be able to decode a WAV or mp3 file The sound in the wav file is magnetic stripe. If you can do this, please let me know urgent. So basicly I need a tool that will decode magnetic stripe audio sound into a text (numbers ) . The tool must be able to clear the noise in the sound and support interrupted data signal inside of sound file !! . the sound contains a data from track2 ... which will look like this 1234567890123456789=1234567890123456789? Please post ONLY if you really know how to do this and can do in a short-time.

    [more]
  • $250 USD Jan 10, 2013

    I need an already done software or someone who can make it. Software must be able to decode a WAV or mp3 file The sound in the wav file is magnetic stripe. If you can do this, please let me know urgent. So basicly I need a tool that will decode magnetic stripe audio sound into a text (numbers ) . The tool must be able to clear the noise in the sound and support interrupted data signal inside of sound file !! . the sound contains a data from track2 ... which will look like this 1234567890123456789=1234567890123456789? Please post ONLY if you really know how to do this and can do in a short-time.

    [more]
  • $1000 USD Sep 10, 2012

    The all details about the project will be in the attached files, which classified into 3 files, PDF is the paper of the original work, and 2 words files about my work. as well as, i am able to provide some of the work i have done in OMNET++, which is related to my proposed work, and the original paper i have been implement/simulate it in visual C++, and get the whole results. Kindly see the attached files and please answer me as soon as possible to start work on it..

    [more]
  • $750 USD Aug 10, 2012

    Hi there,I"m looking for an experienced desktop app developer to create a simple video editor. I would like for it to be Mac and PC compatible. Here"s the basics of what it should do:1. Importing an image or video as template.2. Add a text or countdown as an overlay on image or video.3. Scale, rotate, panning, coloring of the text and shadow as an overlay.4. Animate the overlay text as countdown timer.5. Generate preview of full animation (template with added text).6. Rendering the image/video with fade-in, fade-out.7. Export the image/video with countdown text integrated to the parentimage/video as movie. Should be able to export into WMV and MP4. Or other universal codecs.8. UI development.Essentially, you should be able to take a video, add text and numbered countdown, add fading effects and export it. For an example of a countdown UI, check www.thecountdowncreator.com. More important than Freelancer Rank, the developer MUST have:1. Solid english communication, must ALWAYS return emails and communication.2. Experience with this style project, and proof of a desktop application project completed.3. A great attitude!I"m interested in developing future versions and upgrades, so I want to find a very competent developer.Looking forward to meeting you!

    [more]
  • $60 USD Jul 21, 2012

    Hello, i have assignment regards Random Processes and Queuing Theory subject. Please refer to the attach to view the questions.Are you able to do it before the due date?Regards,

    luchenggang does not have any open projects.
    luchenggang does not have any work in progress.
[see more]

Portfolio

[see more]

Résumé

Experience

Lecturer

Jul 2009 - Present (5 years)

Zhejiang University of Technology

developing professional software in industry;<br />lecturer of calculus course;<br />software designing course lectuer

Director

Mar 2008 - Jul 2009 (1 year)

Mobinex

Lead great software projects for South Korea Telecommunication.

Manager

Oct 2006 - Mar 2008 (1 year)

Chipnuts

Algorithms and software research & development in multimedia processing.

Senior programmer

Oct 2005 - Oct 2006 (1 year)

Huawei

Enterprise level telecommunication server, development and marketing

Research Engineer

May 2003 - Oct 2005 (2 years)

VIA

Audio, video, and H.323, development

Education

Phd

Zhejiang University

1998-2003

Bachelor

Zhejiang University

1992-1996

Certifications

Best Paper

CG-SIS

Best paper in the conference of IC CGSIS

Publications

Geometric analysis for Particle Motion in Vector Image Field

Journal of Mathematical Imaging and Vision

Image Segmentation