macbroadcast´s blog

Digital Signal Compression & Video Encoding Research

Interesting everybody who was involved in a publicly funded and therefore “opensourceconferencing or de-encoding project during his university time in  the 90th , founded a comercial company and the sources are gone with the wind.

CU30/qVix  source  turns out to sightspeed

Tim Dorchey´s cuseeme turns into ivisit

Peter Parnes “mWeb Presentation Framework” turned into maratech, whitch was aquired from google. What did Jason Katz in the 90th except buying  HearMe and Firetalk and camfrog ? 😉

NVIDIA Adds GPU Acceleration for OpenCV Application Development
September 23, 2010, 6:19 pm
Filed under: openCU, streaming | Tags: , , , , ,

CUDA Support for OpenCV Paves the Way for New Mainstream Computer Vision-Based Applications, From Next-Generation Robotics to Safer Automobiles

SANTA CLARA, CA, Sep 23, 2010 (MARKETWIRE via COMTEX) — NVIDIA today announced CUDA support for OpenCV, the popular Computer Vision library used in developing advanced applications for the robotics, automotive, medical, consumer, security, manufacturing, and research fields.

With the addition of GPU acceleration to OpenCV, developers can run more accurate and sophisticated OpenCV algorithms in real-time on higher-resolution images while consuming less power. This will facilitate the development of scores of new, mainstream Computer Vision applications.

With thousands of developers and well over two million downloads to date, OpenCV is a popular Computer Vision library for the development of computational-intensive and powerful applications, many of which require robust real-time performance. For example, the new OpenCV depth calculation engine performs 5-10 times faster with GPU acceleration than with the equivalent CPU-only implementation.

more via marketwatch

openCV examples
June 19, 2010, 11:44 am
Filed under: Hacking, ipv6, socialweb | Tags: , , ,

Google to Open-source VP8 for HTML5 Video
April 12, 2010, 9:57 pm
Filed under: streaming | Tags: , , , ,
 H.264 (left) und On2s VP8 (right)

Google will soon make its VP8 video codec open source, we’ve learned from multiple sources. The company is scheduled to officially announce the release at its Google I/O developers conference next month, a source with knowledge of the announcement said. And with that release, Mozilla — maker of the Firefox browser — and Google Chrome are expected to also announce support for HTML5 video playback using the new open codec.

Freeing VP8
Simply open sourcing it and making it available under a free license doesn’t help. That just provides open source code for a codec where relevant patents are held by a commercial entity and any other entity using it would still need to be afraid of using that technology, even if it’s use is free.


Yesterday at MIX Dean (general manager of the IE team) announced the availability of the first IE9 Platform Preview for developers. Dean also committed to updating the preview approximately every eight weeks. There is a good article on Beta News covering some of the technical details of the release. A key part of the announcements was the support for hardware accelerated HTML5 including supporting the video tag with the H.264 codec.

openCU uses openCV
March 20, 2010, 4:00 pm
Filed under: streaming | Tags: , , , ,

openCu uses openCV , a very powerfull Open Source Computer Vision library ,read more about it  in the OpenCV wiki :

OpenCV (Open Source Computer Vision) is a library of programming functions mainly aimed at real time computer vision.

Example applications of the OpenCV library are Human-Computer Interaction (HCI); Object Identification, Segmentation and Recognition; Face Recognition; Gesture Recognition; Motion Tracking, Ego Motion, Motion Understanding; Structure From Motion (SFM); Stereo and Multi-Camera Calibration and Depth Computation; Mobile Robotics.