3D reconstruction of human body model based on incremental Motion recovery structure

3D reconstruction of human body model is a very important research topic in 3D reconstruction and also a challenging research direction in engineering field. In this paper, the whole pipeline flow of 3D reconstruction of human body model based on incremental motion recovery structure is proposed. Use mobile phone to collect images from different angles and screen them; Secondly, feature extraction and matching under SIFT operator, sparse reconstruction of incremental motion recovery structure, dense reconstruction based on depth map and other processes are carried out. Poisson surface reconstruction is finally carried out to achieve model reconstruction. Experiments show that the effect subject of the reconstructed model is clear.

Functional results of endoscopic arytenoid abduction lateropexy for bilateral vocal fold palsy

Purpose Endoscopic arytenoid abduction lateropexy (EAAL) is a reliable surgical solution for the minimally invasive treatment of bilateral vocal fold palsy (BVFP), providing a stable airway by the lateralization of the arytenoid cartilages with a simple suture. The nondestructive manner of the intervention theoretically leads to higher regeneration potential, thus better voice quality. The study aimed to investigate the respiratory and phonatory outcomes of this treatment concept. Methods 61 BVFP patients with significant dyspnea associated with thyroid/parathyroid surgery were treated by unilateral EAAL. Jitter, Shimmer, Harmonics to Noise Ratio, Maximum Phonation Time, Fundamental frequency, Voice Handicap Index, Dysphonia Severity Index, Friedrich’s Dysphonia Index, Global-Roughness-Breathiness scale, Quality of Life, and Peak Inspiratory Flow were evaluated 18 months after EAAL. Results All patients had a stable and adequate airway during the follow-up. Ten patients (16.4%) experienced complete bilateral motion recovery with objective acoustic parameters in the physiological ranges. Most functional results of the 13 patients (21.3%) with unilateral recovery also reached the normal values. Fifteen patients (24.6%) had unilateral adduction recovery only, with slightly impaired voice quality. Eleven patients (18.0%) had false vocal fold phonation with socially acceptable voice. In 12 patients (19.7%) no significant motion recovery was detected on the glottic level. Conclusion EAAL does not interfere with the potential regeneration process and meets the most important phoniatric requirements while guaranteeing the reversibility of the procedure—therefore serving patients with transient palsy. Further, a socially acceptable voice quality and an adequate airway are ensured even in cases of permanent bilateral vocal fold paralysis.

Apparel Design and Development Based on 3D Scanning Technology

With the development of computer science, especially the application of 3D scanning technology in garment design, intelligent modeling is realized, which is impossible to achieve in traditional design methods. In this paper, we propose the 3D model construction of human garments based on the motion recovery structure method. The eigenmatrix is obtained from the camera parameters, and the transformation matrix is calculated by matching the image feature points with the help of scale-invariant feature conversion algorithm to realize the 3D reconstruction technology of human garments based on multiview image sequences. The effectiveness of this method is verified through experiments, and it has good robustness and accuracy. Through the form of style modeling, the design thinking and method can be extended to form a more reasonable garment structure and guide the innovation of garment production mode.

Multi-Level Fibrotomy for Pediatric Patients with Cerebral Palsy: A Cohort Study

Muscle retraction in Cerebral Palsy (CP) often requires surgical treatment. Multilevel procedures (using open or percutaneous techniques) are commonly performed in the ambulant patient with CP. The necessity to find new surgical techniques, reduce postoperative discomfort, and accelerate the healing process and rehabilitation is mandatory for these patients. A retrospective cohort study with 189 pediatric patients with CP was performed. The multilevel gradual fibrotomy of Ulzibat was modified using an ophthalmic knife. No significant complications were reported using our technique. Opioid drugs were not necessary, and casting time was reduced at the first 24 h. A significant Range of Motion recovery was assessed post-operatory and maintained at the last follow-up. Mean days of hospitalization were 2.2. The mean follow-up was 39 months (6–64 months). The modified multilevel fibrotomy reduces postoperative pain with easier patient management, resulting in a faster discharge from the hospital. However, the retrospective nature and the lack of a control group of the present study did not allow the authors to report significant results. Further studies with longer follow-up are in progress to obtain more certain data that confirm our preliminary results.

HUMAN DETECTION AND MOTION RECOVERY BASED ON MONOCULAR VISION

ABSTRACT Objective: Provides interactive games and human animation real motion data and technical options. Therefore, how to complete the position, attitude detection, and motion recovery under monocular vision has become an important research direction. Methods: This paper improves the part-based human detection algorithm and uses the AdaBoost multi-instance learning algorithm to train the part detector. Results: The results show that obtaining blood pressure waveform based on monocular vision pulse wave is feasible and has generalization. Conclusions: The results show the feasibility and accuracy of the gait motion detection, motion recovery and analysis system for human lower limbs based on monocular vision. Level of evidence II; Therapeutic studies - investigation of treatment results.

Does Digital Nerve Injury Affect Range of Motion Recovery After Zone 2 Flexor Tendon Repair?

Background Evidence surrounding the impact of concomitant digital nerve injury on the outcome of zone 2 flexor tendon repair is sparse and conflicting. The purpose of this study is to assess the impact of digital nerve injury on the range of motion recovery after zone 2 flexor tendon repair. We hypothesized that digital nerve injury is independently associated with decreased motion after zone 2 flexor digitorum profundus (FDP) repair. Methods This is a single-institution, multisurgeon retrospective analysis of patients treated with primary zone 2 FDP repair. Patients with or without digital nerve injuries were included. Patients with fracture, extensor tendon injury, dysvascularity, follow-up duration of less than 10 weeks, and younger than 15 years were excluded. The primary outcome measure was Strickland percentage at the last therapy visit. Bivariate analysis was performed using simple linear regression. These results were used to guide backward stepwise multivariable analysis of qualifying exploratory variables. Results Forty-one patients with a total of 54 zone 2 FDP injuries qualified. Mean follow-up duration was 24 ± 10 weeks, and mean age was 38 ± 18 years. Thirty-three digits had a concomitant digital nerve injury, 26 digits had multidigit involvement, and 42 digits had combined FDP and flexor digitorum superficialis (FDS) injuries. Both older age and concomitant FDS injury exhibited independent relationships with poorer range of motion outcomes ( P < .05). Digital nerve injury, follow-up duration, gender, and multidigit involvement did not influence final digital motion. Conclusions In patients undergoing zone 2 FDP repair, concomitant digital nerve injury is not independently associated with poorer postoperative active range of motion.