Video / Imaging DesignWire
Blog Description
February 5, 2012
The concepts behind the Avalon Streaming (Avalon-ST) Video Interface protocol, an open interface from Altera.
How to choose a BNC connector and properly design the BNC footprint on a high-speed printed circuit board — with the goal of meeting the tight requirements for SMPTE return loss. This article provides an overview of the types of BNCs in the broadcast video market, the test to determine the BNC’s electrical quality, common mistakes in BNC footprint designs, techniques for designing good BNC footprints and the use of 3D simulation tools to determine layout decisions.
ExtremeLink PC-on-TV technology offers the transmission of high quality video and USB 2.0 to deliver all types of PC interactions wirelessly over 802.11n including the ability to browse the Internet, access email, instant message, create documents, stream content off of a flash drive, play games, and much more.
HomePNA is the ITU standard (G.9954) that allows for high performance communications across coax and phone lines. To date, over 13 million HomePNA chips have been shipped and nearly 2.5 million homes now run IPTV-based services on HomePNA.
Delivering video across a variety of platforms involving multiple codecs can be efficiently handled by multicore media processors. Part Two explains the architectural requirements for flexible processing.
Transitioning television to Internet-style one-to-one addressable advertising can be done gradually in cable television, while implementing the SCTE 130 standard from the Society of Cable Telecommunications Engineers, by utilizing a virtual zoning approach.
Delivering video across a variety of platforms involving multiple codecs can be efficiently handled by multicore media processors. Part One is an overview of the challenge and the codecs involved (including the rarely-mentioned MPEG-3!)
The cable-TV industry needs to move to targeted advertising, but cost challenges such as HD ad splicing and additional infrastructure requirements make it slow going. Here’s a gradual approach that cable-TV MSOs can begin deploying without the need for new set top boxes.
DisplayPort’s killer feature may be its ability to support multi-display monitors from a single digital output port and provide full display performance with zero latency, while consuming less power and costing less than other multi-monitor solutions.
An overview of the image sensor processing pipeline, including camera front-end IP implementation on a low-cost FPGA fabric, Bayer to RGB conversion and efficient use of memory.
Built In Self Test (BIST) in active HDMI and other high-speed digital cables provides better accuracy and cost savings compared with earlier in-production testing methodologies, and can also improve production line performance.
The market for video surveillance keeps burgeoning. Here’s a review of smart video surveillance technology and the challenges for embedded system designers, and an example of intelligent surveillance design using the Blackfin processor to provide the control and image processing.
Understanding how diversity antenna systems work, and how Mobile Digital TV viewing can be improved through the use of multiple antennae — even for space-constrained portable devices, and for in-vehicle and deep-indoor reception.
Understanding the causes of deterministic and random jitter in SDI and other digital video signals, and how to minimize jitter in the design of pro video equipment meeting SMPTE specs.
Picture quality measurements based solely on detecting the noise differences between the reference and test videos fail to account for the characteristics of human perception and have broad limitations as a result.
How to convert the H.264 Loop Filter problem, which is sequential in nature, into a vector oriented/ parallel process that efficiently uses SIMD architecture.
