JPH04106656A - Device for exhibiting japanese sentence corresponding to noted point - Google Patents

Abstract

PURPOSE:To improve the sentence reading speed of an observer by replacing KANJI (Chinese character) contained in a sentence with blank spaces on the outside of a certain area around the eyes of an observer. CONSTITUTION:An eye movement detector detects the eyes of an observer and a peripheral section converter makes such conversion that the KANJI contained in a Japanese sentence composed of KANJI and KANA (Japanese syllabary) outputted from an information processor for display is replaced in real time with blank spaces and the KANA is not converted on the outside of a certain area around the eyes of the observer, with the sentence within the certain area being left as it is, on the basis of the eye movement information sent from the eye movement detector. Then successively converted character strings are displayed on a Japanese sentence exhibiting display in accordance with the movement of the eyes. Therefore, the visual information collecting function at the peripheral parts of the retinae of the eyes of the observer having weak sight can be improved and, as a result, the sentence reading speed of the observer can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a gaze point compatible Japanese text presentation device for improving text reading speed.

[Prior Art] Human eyeball movements when reading are a repetition of stopping and saccading movements. A fixation is a state in which the gaze remains in a fixed position for a certain period of time (often around 0.25 seconds), and a saccade is a high-speed eye movement that moves the gaze to the next fixation position. . During the saccade, the text cannot be read due to the high speed, and due to the physiological characteristics of the saccade, the size of the saccade cannot be changed during the saccade period. Therefore, during the retention period, ■
The sentence is read, the next stop position is also determined, and a saccade commensurate with the size is prepared. The visual range used for these two processes performed during the retention period is referred to as the visual field during reading, and the present inventor aims to effectively utilize the movement characteristics of the eyeballs during reading to improve text reading speed. However, no such attempt has been made to date.

The area B outside the area A is the part used to perform the information processing described in (2) above. The part B on the right is used to determine the next stop position, and the part on the left is used to determine the backward reading position. Note that these portions B are more than a few degrees away from the point of gaze in terms of visual angle, so they must be read using a retinal region whose visual function has significantly deteriorated (τ normal visual acuity, that is, visual acuity of 1.0 at the center of the retina). Even in people with 2, visual acuity at a site 3 degrees off center is 0.3 or less).

The object of the present invention is to provide a Japanese text presentation device that provides a Japanese text presentation device.

[Means for Solving the Problems] In order to solve the above problems, the gaze point compatible Japanese sentence presentation device of the present invention is equipped with an eye movement detection sensor that detects the direction of the observer's line of sight. an eye movement detector that detects eye movements based on the information, an information processing device that outputs Japanese sentences mixed with kanji and kana to present to the observer, and information processing based on the eye movement information sent from the eye movement detector from time to time. The device includes a peripheral part converter that performs necessary conversion on the Japanese sentences output from the device, and a Japanese sentence presentation display that presents the Japanese sentences output from the peripheral part converter to an observer. The conversion of Japanese sentences in a converter catches the eye.

In this way, the text is read as it is in a certain range where the text is read during the pause period of the eye movement, and outside of that, the kanji are left blank, and the oculomotor movement detector detects the observer's line of sight. In the part converter, based on the eye movement information sent from the eye movement detector,
In a certain range centered on the line of sight, the Japanese text for display from the information processing device is displayed as is, and in the part outside the above range, the kanji in the Japanese text mixed with kanji and kana are replaced with blanks in real time, Conversion is performed to display the hiragana characters as they are. Then, as the eye moves, the character strings subjected to the above conversion are displayed as sentences on the Japanese sentence presentation display [Example] FIG. 1 shows the configuration of the gaze point compatible Japanese sentence presentation device according to the present invention. ing.

This Japanese text presentation device is equipped with an eye movement detection sensor that detects the direction of the observer's line of sight, an eye movement detector that detects eye movement based on the output of the sensor, and a Japanese text that is presented to the observer. an information processing device that sequentially outputs the information, a peripheral part converter that performs necessary conversion on the Japanese text sent from the information processing device based on the eye movement information sent from the eye movement detector from time to time, and the peripheral part conversion machine. It mainly consists of a Japanese text presentation display that presents the Japanese text output from the machine to the observer.

The above-mentioned peripheral part converter replaces Chinese characters in a frame memory or a part that is more than a certain range away from the device (area B in FIG. 3) with blanks, and sends the result to the display.

The Japanese text presentation device having the above configuration stores unnecessary Japanese character strings, and the kanji position detection unit detects the kanji characters included in the Japanese character string for display stored in the frame memory. This is to extract the location information of. This kanji position information is, for example, information on which line and from which character to which character the kanji is.Specifically, it is easy to detect since ``3021'' and above are kanji in the JIS code. can be done. In addition, based on the position information of the above-mentioned kanji and the line of sight information of the U element from the eye movement analyzer, the kanji blank replacement unit replaces the Japanese text for display from the information processing device as it is at the position of the line of sight. In the area outside the above range (region B), conversion is performed so that the kanji in the normal kanji, kana, and Japanese sentences are replaced with spaces in real time, while the hiragana are left as they are.

Then, as the eye moves, the character strings subjected to the above conversion are displayed as sentences on the Japanese sentence presentation display.

The above-mentioned range centered on the line-of-sight position varies depending on the observer, but is generally about 5 to 6 characters on either side of the line-of-sight. Further, in view of visual characteristics, it is desirable that these series of conversions be performed within several +m5eC after each saccade ends.

In this way, it becomes possible for sentences to improve reading speed during eye movement dwell periods.

Figure 2 shows the experimental results regarding the text reading speed, and plots the average values of the three subjects. The vertical axis is the reading speed per character, and the horizontal axis is the reading speed per character.
This is the width (number of characters) of A in the conceptual diagram. Kanji characters other than A were replaced with blanks and presented. In the figure, the data point (black circle) plotted at 60 characters is
This is an example of measurement when reading a normal sentence, where no matter where the line of sight is, kanji are not replaced with spaces, and no parts are converted in any way.

According to the results of this experiment, it can be seen that when the width of A is 10 characters or more, the reading speed is improved compared to the normal reading speed. As a result, this shows that the text presentation device of the present invention can read texts faster than normal reading speed, that is, it shows the effectiveness of the Japanese text presentation method using the device of the present invention.

[Effects of the Invention] According to the Japanese text presentation device of the present invention detailed above,
By effectively utilizing the movement characteristics of the eyeballs during reading, it is possible to improve the visual information gathering function in the peripheral retinal region where visual acuity is low, thereby improving text reading speed.

[Brief explanation of drawings]

Fig. 1 is a block configuration diagram showing the essentials of the Japanese text presentation device according to the present invention, Fig. 2 is a line section showing the results of experiments related to the present invention, and Fig. 3 is the functional differentiation of the visual field during general reading. FIG. Designated agent chart

Claims (1)

[Claims] 1. An eye movement detector that includes an eye movement detection sensor that detects the direction of the observer's line of sight and that detects the eye movement based on the output of the sensor, and a mixture of kanji and kana that is presented to the observer. an information processing device that outputs Japanese sentences; a peripheral part converter that performs necessary conversion on the Japanese sentences output from the information processing device based on eye movement information sent from the eye movement detector at any time; a Japanese sentence presentation display that presents the Japanese sentences output from the peripheral part converter to the observer; A gaze point compatible Japanese sentence presentation device characterized in that, in some parts, kanji in the sentence are replaced with blanks.