Hasil Pencarian  ::  Simpan CSV :: Kembali

"Computer vision has widespread and growing application including robotics, autonomous vehicles, medical imaging and diagnosis, surveillance, video analysis, and even tracking for sports analysis. This book equips the reader with crucial mathematical and algorithmic tools to develop a thorough understanding of the underlying components of any complete computer vision system and to design such systems. These components include identifying local features such as corners or edges in the presence of noise, edge preserving smoothing, connected component labeling, stereopsis, thresholding, clustering, segmentation, and describing and matching both shapes and scenes. The extensive examples include photographs of faces, cartoons, animal footprints, and angiograms, and each chapter concludes with homework exercises and suggested projects. Intended for advanced undergraduate and beginning graduate students, the text will also be of use to practitioners and researchers in a range of applications."

"Salah satu kemampuan robot yang canggih adalah mampu melakukan adaptasi pada lingkungan sekitarnya. Kemampuan ini merupakan analogi terhadap kemampuan manusia secara khusus. Namun, kebanyakan robot yang dibuat masih terbatas dalam hal interaksi secara sentuhan dengan lingkungan sekitarnya. Oleh karenanya diperlukan sistem sensasi non-kontak yang salah satunya adalah sensasi secara visual. Cara ini termasuk salah satu yang paling advance karena hampir semua proses manipulasi bisa dilakukan dengan hanya menggunakan sensor visual yaitu kamera walaupun computational cost-nya cukup tinggi. Single Board computer jenis BeagleBoard akan digunakan untuk melakukan komputasi sensasi visual yang meliputi face detection, stereo vision, dan bahkan lokalisasi nantinya. Wajah manusia yang akan dikenali oleh sistem computer visualnya akan di-tracking dan diukur jaraknya secara real time melalui teknik stereo vision. Koordinat yang didapat akan ditransformasikan dengan persamaan kinematik berupa invers jacobian menuju pusat robot untuk melakukan aktuasi pada aktuator vision dan navigasi robot secara keseluruhan sampai tujuan untuk melakukan interaksi dengan manusia tercapai. Berdasarkan pengujian yang telah dilakukan dapat dinyatakan bahwa sistem komputer vision yang telah dibangun cukup valid dan handal untuk jarak dibawah 100 cm walaupun dengan waktu komputasi yang cukup besar.

---

One of the advance robot's ability is it can adapt into the around environment. This ability itself is the analogy of human's. But now, most of the robots still have limited in contact sensation. So, it's needed to build non-contact sensations and one of them is reached by build visual system. This way belong to one of advance method because almost of manipulation way can be dealed with this visual sensor like camera, even though the computational cost is high enough.

BeagleBoard, a kind of powerful Single Board computer, will be use to compute the visual sensation in this receptionist robot include face detection, stereo vision, and even localization later. The face of human that will be recognized by visual computer system will be tracked and the distant is calculated real time via stereo vision system. The coordinate that has been gathered will be transformed by invers jacobian into the center of robot to actuate visual actuation and doing robot navigation until receptionist robot is able to do interaction with human. Based on the result of experiment, it can be stated that the developed computer vision system is valid and reliable enough for distant below 100 cm even though spends high computational time."

""This book brings together various research methodologies and trends in emerging areas of application of computer vision and image processing for those interested in the research developments of this rapidly growing field"--"

"Computer Vision Syndrome (CVS) merupakan permasalahan kompleks pada mata dan daya penglihatan terkait dengan penggunaan komputer. Penurunan frekuensi kedipan sebesar 60% saat penggunaan komputer meningkatkan risiko mata kering dan gejala- gejala lain terkait CVS. Di perlukan intervensi ergonomi sebagai strategi preventif risiko CVS, salah satunya adalah media breakpoint of attention yang dapat memicu timbulnya kedipan yang teratur. Penelitian ini bertujuan untuk mengevaluasi media breakpoint of attention dalam bentuk visual (yang diwakili dengan aplikasi blink-blink) dan audio (yang diwakili dengan aplikasi metronome) sebagai countermeasure CVS. Pengambilan data dilakukan menggunakan eye-tracker kepada 30 orang dengan metode pengukuran yang digunakan adalah frekuensi kedipan keseluruhan, frekuensi kedipan yang terindikasi lelah (durasi kedipan > 500 ms) dan kuesioner keluhan mata. Hasil dari penelitian ini menunjukkan bahwa aplikasi blink-blink lebih unggul dibanding metronome dalam meningkatkan frekuensi kedipan secara keseluruhan, mengurangi frekuensi kedipan yang terindikasi lelah serta berdasarkan nilai subjektif keluhan mata.

---

Computer Vision Syndrome (CVS) is a complex problem in the eyes and vision that is related to computer use. A 60% reduction in the frequency of blinking during computer use increases the risk of dry eyes and other symptoms related to CVS. There is need from ergonomics intervention as a CVS risk preventive strategy, one of them is a media breakpoint of attention that can trigger the appearance of regular blinks. This study aims to evaluate the media breakpoint of attention in visual form (which is represented by blink-blink application) and audio (which is represented by metronome application) as a CVS countermeasure. Data retrieval is done using an eye-tracker to 30 people with the measurement method used is the overall blink rate, the frequency of blink duration that is indicated to be fatigue (duration of blinking > 500 ms) and eye complaints questionnaire. The results of this study indicate that the blink-blink application is statistically better than metronome in increasing the overall blink frequency, reducing the frequency of blinking which is indicated to be fatigue and from subjective value of eye complaints."