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Device for lossless recording, storing and playing back high-speed images in real time without loss

A high-speed image and recording technology, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as high-speed image bandwidth and real-time constraints

Inactive Publication Date: 2012-11-07
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

Since the output bandwidth of a high-speed digital camera is generally above several hundred MB / s, the high-speed dynamic cache can only record high-speed images in a short time range.
The third method, because it is still necessary to transmit the high-speed image data collected in real time based on the parallel bus inside the computer, still has certain restrictions on the bandwidth and real-time performance of the high-speed image

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  • Device for lossless recording, storing and playing back high-speed images in real time without loss
  • Device for lossless recording, storing and playing back high-speed images in real time without loss
  • Device for lossless recording, storing and playing back high-speed images in real time without loss

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Embodiment Construction

[0018] Such as figure 1 As shown, the high-speed image real-time lossless recording, storage and playback device of the present invention includes a high-speed image data distribution board, N storage subsystems, a gigabit network switch and a main control playback computer. The value of N is mainly determined according to the number of data channels that can be transmitted by the CameraLink standard, and the preferred value can be 2, 3, 4, 5, 8 or 10.

[0019] The high frame rate CMOS digital camera uses Mikrotron's MC1362 camera, the maximum frame rate of which is 504fps1280*1024, and uses CamerLink Full mode interface output. The highest output pixel clock is 75MHz, and the output pixel format is 8bit*10pixels per pixel clock.

[0020] Such as figure 2As shown, the high-speed image data distribution board includes 3 CameraLink decoding chips, a programmable logic device (Laticce CPLD) and 5 CameraLink encoding chips. The CameraLink decoding chip is connected to the high...

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Abstract

The invention relates to a device for recording, storing and playing back high-speed images in real time without loss, which comprises a camera link decoding chip, a programmable logic device, a camera link coding chip, n storage subsystems, a gigabit network switch and a master control playback computer. Real-time synchronization coding is carried out on the high-frame-frequency image data led in by the camera link decoding chip through the programmable logic device, and then the high-frame-frequency image data are distributed into n paths of image data with frame synchronization codes; the coded image data are stored into each storage subsystem through the camera link coding chip, and are led into the master control playback computer by the gigabit network switch for decoding and synthesis of the same frame image; and post playback interpreting and processing are carried out. By the device provided by the invention, the high-speed image data output by a high-frequency-frame complementary metal oxide semiconductor (CMOS) digital camera are stored and recorded for a long time in real time without loss; and the device is convenient for the master control playback computer to carry out post playback interpreting and processing.

Description

technical field [0001] The invention belongs to the technical field of high-speed digital video storage, and relates to a high-speed image capable of recording, storing, and replaying high-speed digital images output by a high-frame-rate CMOS (Complementary Metal Oxide Semiconductor) digital camera in real time without loss in real time. Record storage playback device. Background technique [0002] In machine vision applications, digital cameras play an increasingly important role in capturing rapid changes, especially the advantages of high frame rate digital cameras with CMOS image sensors as photoelectric conversion elements are more significant. High frame rate digital cameras are mainly used in the recording test of high-speed motion and high-speed object collision process. It is of great significance mainly in automobile crash experiments, development of seat belts and airbags, high-speed particle field motion analysis, rocket launch and aircraft take-off and landing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/43H04N21/433
Inventor 孙宏海徐大鹏王延杰
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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