This volume presents cutting-edge research from the 40th Computer Graphics International Conference (CGI 2023). The proceedings compile 149 peer-reviewed papers selected from 385 submissions, covering a broad spectrum of advancements in computer graphics. The research spans areas such as detection and recognition, image analysis and processing, rendering and animation, and the integration of graphics with augmented and virtual reality. It also includes significant contributions to medical imaging, robotics, and theoretical analysis within the field.

This collection represents a significant compilation of recent advancements in computer graphics, as evidenced by the rigorous selection process from a large number of submissions. The breadth of topics covered, from fundamental image processing to applied AR/VR and medical imaging, indicates a comprehensive overview of the field's current state. The inclusion of theoretical analysis alongside practical applications suggests a balanced approach to research, catering to both academic and industry professionals.