Modern Views on the Treatment of Patients with Injuries of the Medial and Lateral Menisci of the Knee Joint (Literature Review)

Summary. We have analyzed the literature to determine the tactics of the knee menisci injury surgical treatment. It has been determined that the use of cellular technologies for suturing a damaged meniscus allows satisfactory results even in patients with ruptures in the avascular zones, despite the fact that partial meniscectomy is considered the "gold standard" of surgical treatment for ruptures in the “white” zone. It should be considered the advantages and disadvantages of different stitching techniques and the specific clinical and physical characteristics of each patient.

Multicamera Video Stitching for Multiple Human Tracking

In this paper, a novel approach is proposed to track humans for video surveillance using multiple cameras and video stitching techniques. SIFT key points are extracted from all camera inputs. Using k-d tree algorithm, all the key points are matched and random sample consensus (RANSAC) is used to identify the match correspondence among all the matched points. Homography matrix is calculated using four matched robust feature correspondences, the images are warped with respect to the other images, and the human tracking is performed on the stitched image. To identify the human in the stitched video, background modeling is performed using fuzzy inference system and perform foreground extraction. After foreground extraction, the blobs are constructed around each detected human and centroid point is calculated for each blob. Finally, tracking of multiple humans is done by Kalman filter (KF) with Hungarian algorithm.

Virtual Tour Interaktif 360 Derajat Menggunakan Teknik Image Stitching Sebagai Media Informasi Kampus STMIK Amik Riau

Salah satu strategi untuk meningkatkan pertumbuhan jumlah mahasiswa baru untuk masuk ke STMIK Amik Riau dilakukannya kegiatan sosialisasi oleh bagian promosi dan penerimaan mahasiswa baru (PPMB). Media promosi yang digunakan berupa brosur, kalender, spanduk dan baliho serta melaksanakan sosialisasi ke sekolah. Promosi secara digital juga dilakukan dengan memanfaatkan website kampus dan media sosial seperti facebook, instagram, whatsapp serta youtube. Penelitian ini memberikan ide promosi dengan penggunaan Virtual Tour dengan memanfaatkan teknologi fotografi 360 derajat dengan teknik image stitching. Langkah pertama dilakukan pemilihan beberapa lokasi yang akan ditampilkan dalam Virtual Tour yang berada dalam lingkungan kampus STMIK Amik Riau. Pemilihan lokasi dengan mempertimbangkan kebutuhan informasi yang sering dibutuhkan oleh calon mahasiswa, seperti lokasi ruang pendaftaran, ruang akademik, ruang baak, ruang perkuliahan, laboratorium, aula dan mushala beserta fasilitas lainnya. Selanjutnya dilakukan kegiatan pemotretan diberbagai lokasi kampus yang sudah dipilih sebelumnya. Beberapa foto yang sudah diambil ditiap lokasi digabungkan menjadi bidang yang besar dengan teknik stitching. Selanjutnya dibuat narasi berupa teks dan audio untuk setiap lokasi foto tersebut. Penelitian dilakukan melalui beberapa langkah mulai dari Concept, Design, Material Collecting, Assembly, Testing sampai Distribution. Dari hasil pengujian Virtual Tour ini, calon mahasiswa baru bisa mengetahui informasi kampus tanpa datang ke kampus STMIK Amik Riau. Abstract One of the strategies to increase the growth of the number of new students to enter Amik Riau STMIK is to conduct socialization activities by the promotion and admission of new students (PPMB). Promotional media used in the form of brochures, calendars, banners and billboards as well as carrying out socialization to schools. Digital promotion is also carried out by utilizing campus websites and social media such as Facebook, Instagram, WhatsApp and YouTube. This research provides promotional ideas with the use of Virtual Tour by utilizing 360 degree photography technology with image stitching techniques. The first step is to choose several locations that will be displayed on the Virtual Tour within the Amik Riau STMIK campus environment. Site selection by considering the information needs that are often needed by prospective students, such as the location of the registration room, academic room, classroom, lecture room, laboratory, hall and prayer room along with other facilities. Next, there will be a photo shoot at various campus locations that have been previously selected. Some photos that have been taken at each location are combined into a large field with stitching techniques. Then a narration in the form of text and audio is made for each location of the photo. The study was conducted through several steps ranging from Concept, Design, Material Collecting, Assembly, Testing to Distribution. From the results of this Virtual Tour test, prospective new students can find out campus information without coming to the STMIK Amik Riau campus.

The Feature based Image Stitching Techniques

The photographic images taken from different sources are integrated into one to form a new panoramic image which has high resolution when compared to the original image. Usually, image stitching can be done using any computer software. Image stitching helps us in extracting the actual information from shredded data. The torned paper can be reconstructed by means of image stitching process which is applied in forensic department. Digital maps and satellite photos can be reconstructed through image stitching algorithms which is also known as Image mosics. In recent days, many researchers introduced various algorithms to address the issues in Image stitching technique. Feature based Image stitching technique plays a vital role in most of these algorithms. In feature-based technique, local descriptor is used to compare an image’s feature points with another image’s feature points to predict the feature points for the given pair of image. In this paper different image stitching techniques, comparisons between various features descriptor and the steps involved in Feature extraction in Image stitching method are discussed.

Real-Time Surround-View System for Mobile Robotic System

The paper is devoted to the problem of increasing the adequacy of perception of the environment by the mobile robot operator using remote control. A variant of a real-time surround-view system for mobile robot based on the multiple cameras with fisheye lenses and overlapping fields of view is proposed. A prototype of the circular view system has been developed. In this paper, the key features of the architecture and software of the surround-view system are considered. The algorithms for determining the internal parameters of cameras and distortion correction are researched. New models for describing the distortions of wide-angle and fisheye lens are used. Algorithms for finding the external parameters of cameras, as well as homography matrices using invariant descriptors, are implemented. Static homography matrices are used during stitching images into panorama. Various image-stitching techniques based on the overlapped images region blending are investigated and implemented. The methods of projective geometry and augmented reality were studied to obtain a perspective third-person view. A surface variant for projecting panorama of a surround view is proposed. For the implementation of the software selected cross-platform game engine "Unity". Directions for further research are identified.