Dữ liệu biên mục

Toward brain-computer interaction in paralysis : a new approach based on visual evoked potentials and depth-of-field
Loại tài liệu: Book
Mã tài liệu: 87617
Mã ngôn ngữ: en
Tác giả: Cotrina, Anibal
Thông tin xuất bản: Springer
Tình trạng vật lý: 105 p.
Từ khóa: Human-computer interaction ; Computer networks ; Artificial intelligence ; Application software ; Computer Applications ; Tương tác giữa người - máy tính ; Trí tuệ nhân tạo ; Phần mềm ứng dụng ; Ứng dụng máy tính ; Mạng máy tính
Danh mục: Khoa học máy tính
Năm xuất bản: 2017
Số sách còn lại: Không giới hạn
Thời gian mượn: Bạn chưa đăng nhập.
Tóm tắt theo nội dung: This book presents up-to-date information on Brain-computer Interfaces (BCI). BCIs are systems that record brain signals, extract features and translate them into computer commands. For instance, in BCIs based on the steady-state visual evoked potentials (SSVEP-BCI), brain potentials evoked by visual stimuli are used for controlling computer-based devices. Inspired by the optical phenomenon of depth of field, this book introduces, describes, and evaluates a novel way of setting visual stimuli for SSVEP-BCI. It employs two stimuli that were placed at different distances from the subjects so that if one stimulus is focused on, the other one is non-focused. This assessment allows SSVEP-BCI users to modulate their brain signals by shifting their focus because focused and non-focused stimuli evoke different brain potentials. It allows people to send two brain commands with high accuracy rate by shifting their focus. Hence, computer interaction systems can be proposed for people with paralysis, such as patients with amyotrophic lateral sclerosis since focusing mechanism does not demand head, neck, or eyeball movements. The matter assessed in this book that includes offline and online experiments, is useful for researchers in human-machine interaction who are looking for relevant possibilities of improving the quality of life of people in paralysis situation.
Tóm tắt theo mục lục: Foreword; Preface; Acknowledgements; Contents; Acronyms; 1 Introduction; References; 2 Fundamentals: From Light to Command; 2.1 Light, Eye and Vision; 2.2 Image Formation; 2.3 Field of Vision and Topographic Map; 2.4 Visual Pathway; 2.5 Brain Signals and Evoked Potentials; 2.6 Influence of Refractive Error in VEP; 2.7 Steady-State VEP; 2.8 BCI Based on SSVEP; 2.9 SSVEP-BCI and Gaze Dependence; References; 3 The Novel Stimulation Setup; 3.1 SSVEP-BCI Stimulation Setup; 3.2 Non-focused Objects and Depth-of-Field; 3.3 Optical Point Spread Function (PSF); 3.4 Retinal Blurry Model. 3.5 Accommodation of the EyeReferences; 4 Frequency Demodulation for a SSVEP-BCI Based on Depth-of-Field; 4.1 Traditional Demodulation; 4.2 Proposed Demodulation; 4.3 Spatio-Temporal Retinal Response for a Flickering Stimulus; 4.4 Power Spectrum of the Retinal Response; 4.5 Experimental Evaluation; 4.6 Discussion; References; 5 Offline Evaluation of Command Detection; 5.1 SSVEP Detection Methods; 5.2 Experimental Procedure; 5.3 Results; 5.4 EOG Measurements; 5.5 Discussion; References; 6 Online Applications in Communication and Control; 6.1 Binary Selection. 6.2 BCI for Communication -- A Spelling System6.3 BCI for Control -- Control of a Telepresence Robot; References; 7 Future Directions in Patients with Paralysis; References; Index.
Lưu ý: Sử dụng ứng dụng Bookworm để xem đầy đủ tài liệu.
Bạn đọc có thể tải Bookworm từ App Store hoặc Google play với từ khóa “VNU LIC”.

Bình luận (0)