Profile image of ifriends710
Flag of China Dandong, China
Member since March, 2013
5 Recommendations

CoolMob Soft 

Thank you for considering CoolMob team. The slogan of CoolMob team is "to make a brilliant, cool mobile application." CoolMob team have been developing iOS & Android apps for 5 years. CoolMob team consists of iOS,Android, Backend(ruby,php,javascript) developers & Graphic designers. Most of our clients have been satisfied our job results. Here is one of reviews from our clients. - “Excellent developer. Fast, responsive and super impressive results” -
$40 USD/hr
71 Reviews
  • 93%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 25%Repeat Hire Rate

Recent Reviews

  • image of vincentcarpenter Write an apple watch/iPhone application $2102.00 USD

    “Easy to work with and very efficient, I would highly recommend ifriends710 for any project and will certainly looking forward to working with him again.”

    vincentcarpenter Flag of Australia 1 month ago.
    • Mobile Phone
    • iPhone
    • Apple Watch
  • image of Kjsmashie Social iPhone app $1470.00 USD

    “Excellent work here Chance. When we encountered problems you provided solutions and implemented quickly and effectively. Well done and thanks. Until the next project!”

    Kjsmashie Flag of Australia 1 month ago.
    • iPhone
    • Mac OS
    • Objective C
    • iPad
    • Unity 3D
    • Hire me
  • image of throwrptyltd Work as part of an iOS App building team. $400.00 AUD

    “Great communication, did very well with limited brief.”

    throwrptyltd Flag of Australia 2 months ago.
    • Mobile Phone
    • iPhone
    • Symfony PHP
    • Swift
  • image of nomadicorion iOS: Proof of concept $842.00 USD

    “Jin was helpful in exploring potential functionality and proposing solutions to obstacles unforeseeable at the project onset. He was attentive, professional and dedicated to providing quality code.”

    nomadicorion Flag of United States 2 months ago.
    • Website Design
    • iPhone
    • Android
    • Objective C
    • Apple Safari
  • image of martin0807 Create Multiple Choice Answer Screen $840.00 USD

    “Great freelancer. Appreciate his work. Will hire again.”

    martin0807 Flag of United States 2 months ago.
    • iPhone
    • Mac OS
    • Objective C
    • iPad
    • Unity 3D
    • Hire me
  • image of DigiMedNet Write an iPhone application $3150.00 USD

    “Excellent work. Great knowledge . Will hire him again.”

    DigiMedNet Flag of India 2 months ago.
    • Mobile Phone
    • iPhone
    • Cocoa
    • Objective C
    • iPad


Iphone Developer

Mar 2009 - Jan 2013 (3 years)

I devloped BillBoard(utility app),CloudRider(game) in six month. And I joined the research of Computer Vision.

Mobile Developer/Team Lead

Jul 2007 - Jan 2009 (1 year)



2002 - 2006 (4 years)


C++ Fundamentals (2010)



A new edge detection algorithm for flame image processing

Digital image processing is playing an increasingly important part in imaging based flame monitoring systems. A crucial step in flame image processing is to detect the flame edge, a dividing boundary between the area where there is thermo- chemical reaction and those without. The determination of flame edges is a precursor to flame image processing and measurement of flame parameters. Several known edge detection methods have been tested to identify flame edges but the results achieved are disappointing.


  • Freelancer Orientation
  • Objective C Level 1
  • Numeracy 1
  • iPhone Development 1
  • US English Level 1

My Top Skills

  • iPhone 64
  • Objective C 29
  • iPad 22
  • Mac OS 8
  • Unity 3D 5
  • WatchKit 0

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