Visual angle test method for three-dimensional image display
A technology of stereoscopic display and testing method, which is applied in stereoscopic system, image communication, television, etc., can solve the problems such as no testing method is mentioned, and achieve the effect of improving testing efficiency and facilitating statistical analysis
Inactive Publication Date: 2012-10-24
工业和信息化部电子工业标准化研究院 +1
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[0007] Therefore, there is a need for a viewing angle test method for stereoscopic image display, combined with the characteristics of stereoscopic TV display, and the main performance indicators to obtain the viewing angle test results, and there is no similar test method mentioned in the existing literature
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[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0040] Stereoscopic images of the present invention display visual angle test method, such as figure 1 shown, through the following steps:
[0041] Step 1: Calibrate the relative position between the photocolorimeter and the screen under test;
[0042] Align the photocolorimeter 2 lens with the screen 1 under test (time-sharing stereoscopic display screen or spectroscopic stereoscopic display screen), the plane of the tested screen 1 is perpendicular to the horizontal plane, so that the central axis of the photocolorimeter 2 lens is in line with the measured The normal line of the center of the screen 1 coincides, and the distance between the center of the tested screen 1 and the center of the light colorimeter 2 is 3 times the height of the tested screen (that is, the distance between the top edge and the bottom edge of the tested screen), such as figure 2 ...
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The invention provides a visual angle test method for three-dimensional image display, comprising the following steps of: aiming the central axis of a light colorimeter lens at the normal direction at the center of a screen to be tested, outputting a white / black field signal to a left eye passageway and a right eye passageway of the screen to be tested by a signal source, and respectively arranging a left spectacle lens and a right spectacle lens in the front of the light colorimeter lens, so that an horizontal inclined angle and an vertical inclined angle can be formed between the plane of the screen to be tested and the axial direction of the light colorimeter, and the luminance and crosstalk visual angles along with the left direction, right direction, upper direction and lower direction of the screen to be tested under the left spectacle lens and the right spectacle lens can be measured. Therefore, the minimum in the luminance visual angle and the crosstalk visual angle of the left spectacle lens and the right spectacle lens along with the left direction, the right direction, the upper direction and the lower direction is taken as the visual angle along with the direction: phiL, phiR, phiU, and phiD, so that the horizontal visual angle of the screen to be tested is phiHOR=phiL+phiR, and the vertical visual angle phiVER=phiU+phiD. According to the test method provided by the invention, the crosstalk characteristic of three-dimensional display equipment is considered, and a typical single-color test signal is used, so that the test efficiency can be improved, and the statistic analysis of a test data result can be conveniently carried out.
Description
technical field [0001] The invention belongs to the technical field of stereoscopic television and stereoscopic display, and relates to a method for testing the quality of stereoscopic image display, in particular to a method for testing the viewing angle of stereoscopic image display. Background technique [0002] When a user watches a TV or a monitor, the viewing angle is divided into a horizontal angle of view and a vertical angle of view. The horizontal angle of view refers to the vertical normal line of the display (that is, the vertical imaginary line in the middle of the display), and the user's line of sight is on the left or right of the normal line. A certain angle formed by the square and the normal line; the vertical viewing angle refers to the certain angle formed by the user's line of sight above or below the normal line and the normal line. Generally, the brightness of the screen display will decrease with the increase of the viewing angle. The brightness and ...
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IPC IPC(8): H04N17/04H04N13/04
Inventor 路程范科峰张素兵孙齐锋
Owner 工业和信息化部电子工业标准化研究院
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