Imaging and Camera Technology
Massively parallel processing arrays (MPPAs) for embedded HD video and imaging (Part 2)
A JPEG image compression application using MPPA architecture requires less programming effort than with other processor architectures, and embedded video application development is similarly speeded.
Will Scalado help boost megapixel camera phones?
With the average resolution of camera phones fast approaching 3 Megapixels, handset designers need to design mobile phones that can efficiently handle large image files — increasing in size — without having to add more memory and processing power.
Cameras in handsets evolving from novelty to DSC performance, despite constraints
The quality of pictures from higher-end camera phones (3MP, 5MP, 8MP with autofocus, optical zoom, better lenses and image stabilization) now rivals today's low to mid-range point and shoot DSCs (with video capture). Yet from a design perspective, says Kodak, the mobile camera will remain a factor of ten different from DSCs -- ten times smaller, ten times cheaper, ten times lower power consumption.
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Display Technologies
Understand LED-based white and color-mixing system design
As LEDs, especially High Brightness LEDS, are being used for white and mixed-color illumination, adjusting the drive and changes to the LEDs becomes more critical
Panel display interfaces and bandwidth: From TTL, LVDS, TDMS to DisplayPort
1080p panels in 8-bit color require approximately 3Gbps bandwidth, which exceeds the capability of a 4-pair LVDS interface. To meet the bandwidth requirements of Digital Cinema resolution at 4096x2160, with10 bit and 12 bit color, up to 8-links and bus widths of 40 pairs (808 wires) are used. An overview of panel display interface standards, and where they're heading.
A matter of light, Part 4 --- PWM dimming
Digital dimming with a buck regulator provides the best LED driving topology.
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Video Processing
Viewpoint: Analog IP integration needs support
As end products get smaller, designers are increasingly integrating analog and mixed-signal functionality onto SoCs. Analog IP suppliers must support design teams' lack of in-house integration expertise and guide them throughout the entire design cycle to ensure and expedite successful silicon results.
Data compression for high-speed DSP, part 2
Samplify benchmarks its compression algorithm against LZ-based lossless compression algorithms and consumer compression algorithms such as MP3, JPEG, and H.264.
Signal Chain Basics (Part 18): The op amp as integrator
Understand how this basic building block can be used as analog integrator
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Digital TV/Home Entertainment
Oxford rolls controllers for home storage boxes
: Oxford Semiconductor is rolling out four new controllers for consumer storage systems in its effort to expand into a growing field beyond its core competency in more mature 1394 and USB silicon with controllers that aim to raise performance while keeping costs low for digital home storage devices.
Control System Grounding - Part 2: Ground Wiring, Shield Grounds, and Power Supply Grounding
Learn more effective grounding techniques for ground wiring, shield grounds, and power supply grounding in Part 2 of this excerpt from the book "Control System Power and Grounding Better Practice."
Mobile Game Networking Essentials--Part V
Here is Part V, the final segment of Chapter 14 from Beginning Mobile Phone Game Programming. Wireless network games bring with them their own unique set of problems and challenges that must be dealt with at the design level. Included in the excerpt are many techniques for solving them. For those of you who design mobile games, it's packed with great information--for the rest of you--it's an informative and fun read.
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Mobile/Portable Video
Make the MOST of automotive infotainment
The MOST interface has caught on with many of the automakers, for good reason.
BGA breakouts and routing
Charles Pfeil's book is very helpful for those designing PCB with BGA devices.
Safe and fast battery charging between portable devices
This tutorial lays out the basics of traditional charging, the battery management requirements for modern portable systems, and how to implement device-to-device charging.
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VIDEO/IMAGING DESIGN CENTER ARCHIVE
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About the Video/Imaging DesignLine How-To Section
Video/Imaging DesignLine's How-To Section delivers detailed engineering articles focused on the design and development of imaging and camera technology, display technologies, video processing, digital TV, home entertainment, mobile video and portable TV devices, as well as other technology relating to video and imaging. This includes design of products such as digital camcorders, set top boxes, TV receivers, portable media players, media servers, home video networking devices, surveillance cameras and digital video recorders incorporating technologies such as codecs, DSP, FPGA, System-on-Chip, CCD, CMOS, H.264, MPEG-2 and MPEG-4.
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