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Optical fiber transmitting and housekeeping method of charge coupled camera image data

A technology of image data and optical fiber transmission, which is applied in the direction of cable transmission adaptation, television systems adapted to optical transmission, etc., and can solve problems affecting the image signal-to-noise ratio of CCD cameras, etc.

Inactive Publication Date: 2006-03-29
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, the preamplification system of the remote sensing detector is extremely susceptible to the interference of high-frequency digital signals inside the computer, which affects the signal-to-noise ratio of the CCD camera image

Method used

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  • Optical fiber transmitting and housekeeping method of charge coupled camera image data
  • Optical fiber transmitting and housekeeping method of charge coupled camera image data
  • Optical fiber transmitting and housekeeping method of charge coupled camera image data

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Embodiment Construction

[0028] The following is based on Figure 1-Figure 5 A preferred embodiment of the present invention is given, and a long-line three-line array CCD (each line contains 10,200 picture elements, including three lines of red, green, and blue) is used as an example to illustrate in detail.

[0029] After the CCD analog image data undergoes AD conversion (16-bit quantization), it becomes a frame-by-frame digital image data, and then the programmable device adds a synchronous header and a serial number. The sync header is the sign of the beginning of each frame of image data, represented by a regular high and low level sequence 0101010110101010 (0X55AA); and the serial number can be used to check missing frames, represented by a 16bits unsigned integer, with a range of 0 to 65535, Loop after incrementing from 0 to 65535.

[0030] figure 1 After the AD conversion device 1 of the middle road performs A / D conversion on the image signal, the 16-bit CCD image data is converted into 8-bi...

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Abstract

This invention relates to a fiber transmission and arrangement method for image data of CCD camera, which combines with the CCD image fiber transmission circuit to apply point-to point fiber transmission with the serial-parallel parallel-serial circuit, when the transmission is faulty, the 8B / 10B encode circuit can test and resume it and a logic encoding device is used to generate frame, character synchronization signals and other time sequence control signals and add synchronous heads and sequence numbers on the frame data, the CCD image data are packed and transmitted to be resumed to data frame by frame at the receiving end, the fiber T-R module is used to carry-out electric-photo / photo-electric conversion to form the fiber link.

Description

technical field [0001] The invention relates to an optical fiber transmission method for image data of a remote sensing camera, in particular to a simple and general optical fiber transmission and arrangement method for a charge coupled (CCD) camera remote sensing detection system. Background technique [0002] With the rapid development of computer technology, the remote sensing detection system began to be controlled by computer. However, the pre-amplification system of the remote sensing detector is easily interfered by the high-frequency digital signal inside the computer, which affects the signal-to-noise ratio of the CCD camera image. A common solution is to use optocouplers to isolate the preamplifier system from the computer. [0003] Optical fiber is an emerging technology that uses light for communication. With the increasing maturity and popularization of optical fiber transmission technology, optical fiber is increasingly used as the preferred transmission medi...

Claims

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Application Information

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IPC IPC(8): H04N7/22
Inventor 张冰娜舒嵘徐卫明胡培新马庆军
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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