Fixation point measurement device and method based on video images and artificial neural network

Abstract

The invention discloses a fixation point measurement device and method based on video images and an artificial neural network, and aims to provide a head freestyle fixation point measurement device and method. The measurement device comprises a host, a main display and an assistant display, and is characterized by further comprising a stereoscopic vision measuring system, wherein the stereoscopic vision measuring system comprises a light source, a direct current stabilized voltage power supply and two or more than two pick-up cameras. The measurement method comprises the step of adopting a manual neural network to establish a fixation point measurement mathematical model, wherein a manual neural network input layer comprises 12 input nodes, the input nodes respectively represent three dimensional coordinate components of a left eye pupil, three dimensional coordinate components of a right eye pupil, three dimensional coordinate components of a left eye Puer Qin hot spot and three dimensional coordinate components of a right eye Puer Qin hot spot, a manual neural network output layer comprises 2 output nodes serving as two dimension coordinate components of a fixation point.

Description

technical field [0001] The present invention relates to a kind of gaze point measurement device and its method, relate in particular to a kind of gaze point measurement device and its method based on video image and artificial neural network technology, this device and method are used for measuring the measured object on the computer display surface Gaze point position. Background technique [0002] Eyes are the window to reflect people's psychological activities. As early as the 19th century, some people studied human psychological activities by examining human eye movements. The advent of gaze point measurement devices has provided psychologists with the opportunity to explore visual information of people under various conditions. Processing mechanisms provide new effective tools. For example, gaze point measuring devices can be used to study human reading psychology. Reading speed and reading quality have always been one of the learning issues that students are more con...

AI Technical Summary

Problems solved by technology

However, the measurement accuracy of the existing head free-style gaze point measurement device is low, and its main reason is that it is difficult to accurately describe the relationship between the gaze point coordinates and the head orientation of the measured object with a set of mathematical formulas. cannot accurately compensate for gaze point measurement errors caused by head movement

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