Wednesday, November 28, 2012

Capture Image Toolkit for UVC Camera

    Develop an application to capture image from an UVC camera for Windows 7/XP is a complex processing steps.

    Base on DirectShow APIs, the major processes are:


Source Filter <--- camera="" p=""> |
V
Filters
 |
V
Video Render Filter ---> Display

    For easily capturing image from a camera device, I have developed a toolkit to simplify the programming steps.



Sunday, November 4, 2012

USB camera and image processing + image analysis

    The experience of developing an USB camera and the demo program is an exciting activities. Here I show that I have done for it.



    After the decision of chipset solution, functions, and components size, I began to design the circuit schematics.


    One of the components is the development board, all my development and test are done by this development board.


    Finally, the finished USB camera.


    After I had made the USB camera work, the next step is to develop a demo program. You can download it, CameraCaptureDemo.




    Special functions for Wizign's USB camera: external/software triggering one shot mode capture.