Application Note: Image/Video Processing/Compression Using A436 Video

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Application Note: Image/Video Processing/Compression Using A436 Video

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Image/Video Processing/Compression using Video Digital Signal Processors Chip
Application Note: Image/Video Processing/Compression Using A436 Video Digital Signal Processors Chip
Rev. August 2000. Click here there navigation left. download.
Oxford Micro Devices' A436 Video Chip extremely efficient flexible, image/video processing/compression device. dramatically reduces system size, cost power dissipation compared competitive devices. many unique capabilities that make ideal building very fast, power, cost, compact, flexible, embedded autonomous image/video processing/compression devices such Still Motion, Smart Cameras, Video Editing Systems. provides single chip (plus memory), user software-programmable, broadcast quality, video compression real-time. supports multi-format standards-based non-standards based, image/video compression/decompression. Please contact additional information about A436 VDSP Chip. A436 Chip development. Specifications subject change without notice. limited number partnering opportunities available give head start developing products using Please contact more information partnering program.
Here some many ways A436 Chip helps build small, cost, very fast, flexible, embedded image/video processing/compression systems:
Simple architecture A436 Chip specifically intended real-time image/video processing/compression applications. open architecture that understood quickly, greatly helping hardware software engineers A436. very efficient processor imaging obtains very high performance with relatively clock rate. This reduces complexity, cost power dissipation. Many speed-ups built A436 Chip many built-in features accelerate image/video processing/compression. below. Compact cost autonomous microcontroller other processor required)
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
image/video processing/compression system built from only four chips: digital image sensor, A436 Chip, SDRAM small non-volatile memory. A436 very economical quantity. Support type sensor A436 Chip used with type monochrome color, digital image sensor. variety sensor interfaces provided initialize sensor read data from flexible, glueless interface provided digital output sensor. Data from sensor automatically loaded into user-defined circular buffer A436 programmable controller A436. minimize power dissipation applications with frame rate, data read from sensor stored A436's memory while A436 power mode, then A436 immediately switch fully active mode process data. continuous video data stream read from sensor processed simultaneously. addition, multiple image sensors connected same A436 applications requiring multiple types resolutions image sensors. Fully software programmable A436 Chip fully efficiently software programmable customer ANSI-compatible, parallel-enhanced version instruction Oxford's proven A236 Chip been extended provide additional performance image/video processing/compression fingerprint applications. Customers port their code algorithms A436 Chip using software tools provide site. 32-bit instruction A436 simple enough, with little pipelining, that assembly-language output compiler easily viewed, analyzed modified desired. Optimized imaging data types manipulation image/video data requires variety imaging-specific data formats such SRGB. A436 provides direct, instruction-level support variety parallel data types handle these data formats very efficiently. Highly flexible type image/video compression algorithm implemented, whether standard (e.g., jpeg) special (e.g., motion wavelets). A436 hardwired particular form compression; built-in instruction-driven building blocks that support forms compression. Fast time market With widespread Internet, demands image processing occur everyday. Standards cannot written fast enough. single hardware design made with A436 functionality changed needed, field, reprogramming A436 storing code external Flash EEPROM. A436 pin-compatible (with exception some power pins) with current A236, which used initial system development. Large built-in caches large, wide Data Cache with efficient page replacement algorithm provided A436 Chip provide efficient implementation critical image/video processing/compression applications. Data Cache large enough efficiently support wide-area searches motion estimation. Series parallel Highly modular image/video processing/compression systems built easily using multiple A436 Chips series and/or parallel. A436 Chip's three ports support both video packet modes operation enable data moved among multiple A436 Chips other processors easily.
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
power dissipation caches parallel arithmetic units have been designed minimize power dissipation. internal SRAM enables A436 perform rapid interrupt service, boot perform power management operations while external SDRAM completely turned off. Power management Extensive chip- system-level power management features provided A436 Chip. Quiescent power dissipation virtually zero. Long battery life provided. Management power external SDRAMs provided battery-powered other power applications. Full-featured Serial A436 Chip three serial ports, UART (RS-232) port serial communications with remote system, programmable 2-wire/3-wire high speed speed, serial port control local chips such image sensors, infrared interface flash memory cards, full-duplex stereo audio port. Parallel A436 Chip three parallel ports, each with dedicated controller. port typically used read data from sensor, port used interface external Flash EEProm, third port typically used interface video display device such LCD. ports support streaming (e.g., live image video) packet modes operation. Programmable Lines A436 Chip software-programmable lines that easily connected variety devices including keypads, indicators, actuators, switches. These lines also used reset devices provide chip selects peripheral devices. Fast start-up mode change A436 start very quickly after being reset change operating modes very quickly. Thanks internal SRAM, A436 boot with external SDRAM turned completely off. Small size A436 Chip being housed both standard small, chip-scale, packages miniature portable devices. Multipurpose A436 Chip optimized wireless image/video processing/compression applications fingerprint applications. single port A436 Chip support both fingerprint image sensor color visual image sensor same time. result, single cost miniature system have BOTH fingerprint video compression conferencing capability within separate devices built. Image display Image/video processing/compression involves capture processing images, and, depending upon application, display images graphical user interface. Multiple double-buffered ports built into A436 Chip acquire display live images, reducing system size cost. Lens correction real time A436 programmed correct geometric chromatic aberrations, modulation transfer function (MTF) variations cost lenses real
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
time, before processing compressing images, reducing system size, cost weight. Increased depth field light sensitivity also provided easily.
Some many ways that A436 Chip greatly speeds image/video processing/compression are:
Motion estimation pattern recognition coprocessor A436's tightly coupled internal Motion Estimation Pattern Recognition Coprocessor perform 64-point motion estimation calculation every clock, delivering equivalent more than 50,000 MIPS, orders magnitude faster than other processor. This co-processor also used align color planes another make distance measurments vectors. Fast multiplier adders A436 perform billion, 16b, multiply/adds second, greatly accelerating image processing/compression. Parallel matrix-vector convolution computations supported. Fast matrix transpose A436 transpose matrices instantly, data being accessed some other operation, greatly accelerating image processing/compression such DCTs. Sliding window addressing A436 access process parallel operands single cycle regardless alignment parallel operands memory, greatly accelerating filtering, convolution, motion estimation, etc. Reduction memory size A436 operate upon images native, SRGB color filter format from digital image sensors, reducing size image buffers one-half compared storing images Y-U-V format. Gain adjustment A436's parallel arithmetic units quickly adjust gain individual pixels sensor. Linear non-linear filtering A436's parallel arithmetic units quickly implement small large, linear non-linear filters upon images. Uses include convolution, contrast enhancement, erosion, dilation, line-thinning, edge-enhancement, etc. Thresholding A436's parallel arithmetic units quickly convert gray-scale images binary. This done using defects given fingerprint image sensor desired. Multiple image formats A436 efficiently operate image data Y-U-V (e.g., SRGB color filter (e.g., Bayer format. Equalization A436's parallel arithmetic units quickly perform multiple histogram measurement equalization operations parallel. FFTs other algorithms sped too. Histograms, table look-ups read-outs A436's parallel arithmetic units perform eight table look-up histogram operations parallel quickly perform non-linear pixel transformations compute histograms. This same capability used quickly read results having diagonal placement memory.
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
Efficient pyramidal hierarchical processing A436 efficiently implement pyramidal hierarchical image processing reduce scale images reduce amount memory store them amount time spent matching patterns. Orientation normalization A436's parallel arithmetic units quickly scale, rotate translate images feature vectors normalize image size, position orientation. Distance measurement A436's parallel arithmetic units quickly perform multiple distance measurements between feature vectors parallel. This useful applications where desired find best match among many candidates. Bit-packing A436 enhancements that provide fast bit-packing image/video compression. Encryption A436's parallel arithmetic units quickly implement encryption decryption algorithms.
Applications
Smart cameras Video compression cameras Handheld video conferencing systems Programmable inspection cameras Smart machines scanners Smart digital cameras Digital cameras with high frame rates Smart surveillance cameras Extremely high resolution imaging personal identity authentication systems Smart barcode scanners Vehicle blindspot elimination systems Single- multi-sensor, professional, still video cameras Stereo cameras Smart video monitoring systems color quad/octal processors Video editing systems
Block Diagrams Typical Applications
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
Block Diagram Flexible, fully software programmable, high frame rate, Smart Still, Video Camera
Five-chip (including image sensor SDRAM chips) multi-purpose, Smart Camera using OMDI A436 Video Chip, shown with optional image video display.
Block Diagram Flexible, fully software programmable, Smart Professional Camera Video Editing System
Six-chip (including image sensors, video decoders other image sources/interfaces, SDRAM chips) multi-purpose Smart Professional Camera Video Editing System (with external hard drive) combine live stored images from image sources form composite images. also used stereo camera. Please contact discuss your application detail.
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Image/Video Processing/Compression using Video Digital Signal Processors Chip
Oxford Micro Devices, Inc.
Ax36 Parallel Video Digital Signal Processors Chips Lantern Ridge Office Park; Main Street, Building Monroe, 06468 tel. 203-445-0562; 203-445-0564; e-mail: info@omdi.com; Web: http://www.omdi.com/ Copyright 1995 2000. rights reserved. Patents pending. trademarks property their respective owners used product identification purposes only.
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Application Note: Image/Video Processing/Compression Using A436 Video

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