Based on the analysis of the algorithm of ghost imaging and channel coding transmission, this paper combines the error detection and correction function of channel coding and accurate transmission of ghost imaging to complete image coding transmission. The mechanism of image transmission based on channel coding ghost imaging is studied. Compared with the traditional algorithm of ghost imaging, the mechanism of image coding and transmission greatly decreasing the error rate, reducing the storage space, enhancing the ability of anti-jamming and anti-interception, and realizing the accurate image coding transmission. It solves problems such as insufficient feasibility, low reduction degree, long imaging time of current imaging algorithm, and so on.
Objective:The objective of this study was to show that hand functions could be recovered using nerve segment insert grafting in quadriplegic patients with chronic incomplete lower cervical spinal cord injury (CSCI) (C5/6/7/8).Methods:A retrospective analysis was performed in 18 quadriplegic patients (12 male and 6 female patients; mean age, 27 years; age range, 17–55 years) with chronic incomplete lower CSCI who had undergone nerve segment insert grafting from January 2001 to June 2015. Among the 18 patients, the right upper limb was involved in 7, left upper limb in 4, and bilateral upper limbs in 7 patients.Results:The mean follow-up period was 16 months (range, 3 months–3 years), and all patients exhibited obvious relief of limb spasm. Among all patients, 15 patients experienced no obvious spasm attacks and exhibited recovery of living abilities, i.e., recovery of the hand functions of grasping, holding, and pinching, and recovery of pain and temperature sensation in the fingers and palms; furthermore, they were able to steer an ordinary wheelchair independently postoperatively. The remaining three patients exhibited a significant and continuous improvement in hand functions over time, without any significant donor nerve dysfunction.Conclusions:Nerve segment insert grafting is an effective method that helps recover hand functions in quadriplegic patients with chronic incomplete lower CSCI. Moreover, spasticity can be relieved and partial normal innervation can be obtained in the spastic muscles postoperatively.
In recent years, ghost imaging technology, which uses a barrel detector without spatial resolution to detect and reconstruct object information separately, has become an important research object in the field of quantum optics. In this paper, based on the concrete analysis of ghost imaging algorithm on the basis of information coding and transmission, the information coding transmission is completed by combining the error-checking and error-correcting function of linear block code coding and the precise transmission function of temporal ghost imaging. This paper studied and analyzed the information transmission mechanism based on temporal ghost imaging from three aspects: feasibility, robustness and bit error rate. Based on triangular wave signal information, the simulation and experimental analysis shows that the information coding transmission mechanism improves the difficulty of decoding the code by the attacker, greatly enhances the ability of anti-interference and anti-interception, reduces the bit error rate, realizes the accurate information coding transmission, and solves the problem of the current imaging algorithm which is not feasible and the degree of reduction is not high.
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