JPS62133891A - Image reproducing device - Google Patents

Abstract

PURPOSE:To make flicker inconspicuous, to make horizontal scanning frequency equal to original signals and to reduce the capacity of a memory device by reproducing an image by the field period 1/2 of the field period of an original signal. CONSTITUTION:Signals read out from a memory device 5 are displayed on a picture display unit 1. Light shutters 3a, 3b opened and closed alternately by the switching at every field from a light shutter driving device 12 are provided in a pair of light shutter spectacles 2, and the image of an object is picked up simultaneously by TV cameras 8a, 8b. The outputs of the first and second fields of cameras 8a, 8b are switched by a video signal switching device 7, and the output is synthesized 4 and made to composite video signals for stereo picture. The video signals are stored in the device 5 under the control of a field synchronizing signal transmitter 9. The whole device 1 is controlled by field synchronizing signals generated by the device 9, and the image is reproduced at the field period 1/2 of the field period of the original signal. Thus, the flicker is made inconspicuous.

Description

[Detailed description of the invention]

FIELD OF THE INVENTION The present invention relates to image reproduction, and more particularly, to an image reproduction apparatus N for reproducing stereoscopic images (/9 and general images) into an image display rate 1N. BACKGROUND OF THE INVENTION In recent years, various stereoscopic image reproduction devices using television reception f<Q l! have been developed.
As described in Japanese Patent No. 0-107993, an interlaced odd field or an i-frame image is displayed for the left eye, and an even field or even frame image is displayed for the right eye, and this field or frame switching is performed. A device has been proposed in which the image is viewed using glasses equipped with a light shutter V/vine that opens and closes in synchronization with the ζ1lfJ mirror.
, a two-color stereoscopic image reproduction device using blue and red glasses has been proposed. Problems to be Solved by the Invention Regarding the former problem (b), the brighter the image, the more noticeable the flicker due to the field frequency becomes, and even more so when switching between frames, the flicker becomes even more noticeable.There were 51 points. On the other hand, in the latter case of F, the color of the image is quite different from the natural color, and it is not possible to create a favorable image at all. There was a problem that it was inappropriate for the development. The present invention provides natural color 3D images with less frizz/J! '7
'J: L/I! 7 Rudoj (

[This medium-colored α-body image is also reproduced 1q, and ψl (A T: Measures to solve the problem In Fig. 1, C, j rebijicon camera 8r1゜ε3b,
Video signal off 1! /! & Neck 7, Synthesis circuit 4 (U) Arono with a predetermined visual angle difference ``[Image for 1] Image for the right eye (F: I''
Switch j to output 1 field to alternating η and take out the composite image for stereoscopic image (No.
A means for outputting a field synchronization signal with a period of '2', a memory device 51J1 (including 1 for one body image (combined image 6 is I), 1j'l;j'l(2;:Jth One field is made into a fourth field consisting of every other scanning line of this fourth field, and a second field consisting of every other remaining scanning line, and the second field of the original signal is 1 tree J3 among the scanning lines of the second field
The third field is made up of the scanning lines left in d3, and the fourth field is made up of the scanning lines left in d3, and the fourth field, third field, second field, fourth field are The display device 1 displays the 11th day read from the memory means in the order of the fourth field, the third field, the second field, and the fourth field.
The image person-indicator-F stage, the light beam ↑I ivy glasses 2 are for the above-mentioned field synchronization (the left eye shutter 3a and the right shutter 3b, which are opened and closed in synchronization with No. 31, are respectively closed). This is an example of a real 71Ili input to 1Pi.
Every other running Wt line of one line ((Δ) in Fig. 33)
The fourth field consisting of (1), (3), (5)...) and the scanning line left on the first tree ((2) in (B)
), (4). ...), while the second field of the original signal is transferred to one of the second field scanning lines ((263') in (C) of the same figure). (2
The third field consisting of 65' ), (267' ), ...) and the scanning lines left in the first tree J3 are shown in the same figure (
The fourth field consists of (264'), (266'>, ...) of D>, and the fourth field, third field, second field, and fourth field are set to 1 for field synchronization. The signals read out from the menu means are displayed in the order of the fourth field, the third field, the second field, and the fourth field, and the large 1z is opened and closed in synchronization with the field synchronization signal. The left eye shutter 3a and <i day shutter 3b are viewed with the eye vL2 installed respectively. Embodiment FIG. 1 shows a block system diagram of an embodiment of the apparatus of the present invention. In the figure, reference numeral 1 denotes an image display device, which displays signals read out from a memory device 5, which will be described later. 2 is light beam τ・
With the ivy + 113 mirror, the light shutter 1 which is opened and closed by the reno model 151 for the field from the light shutter drive device 12 of the rear) ho! Ivy 3a, 3b (for example, liquid crystal element or P
(+1.%) is provided in the t-7T element. 8a and 8b are allevision cameras that are compatible with the current television system and are compatible with the right eye and the right eye, respectively, and convey images of the subject at the same time. 7 is a video signal switching device that is compatible with the current television system. Fourth
The field is the output signal of the left-eye television camera 8a, and the second field is the output signal of the right-eye Σ revision camera 8b, with extensive switching. 4 is a synthesis circuit, and video 1
The output signals of the No. 5 switching device 7 are synthesized to make a stereoscopic image screening (or signal). Alternatively, without using the television cameras 8a, 8b, the video signal 6 switching device 7, the synthesis circuit 4, etc., the V T A recording/reproducing device such as R or a video disc (for recording a composite video signal for stereoscopic images as described in 5.1 and playing it back). 5 is a memory device, which is similar to 1. It has 8 memories that can store video signal information for 25 frames, and as described later, 1
While the signals for one frame are sequentially written, the signals for the one frame are sequentially read out using field switching unique to the present invention using a read control signal. This is a 91.1 field synchronization signal transmitting device, which transmits the field synchronization signal of the present invention 14, as described later, based on the vertical synchronization signal included in the original signal. Reference numeral 10 denotes a field synchronization in@receiving device, which receives, for example, infrared light from the field synchronization signal transmitter 9 using an A-trell or the like, and converts it into an electrical signal.1, 11 denotes a field synchronization signal separation circuit; The field synchronization signal is separated and the left eye control signal 01+Buddha name and right eye control signal corresponding to each field are output. Reference numeral 12 denotes an optical shutter driving device, which sends the left-eye optical shutter and ivy driving signals and the right-eye optical shutter. By the way, what about now? An example of the typical television television system is shown in the table below. The present invention can be applied to any television system.
However, here we will discuss NT, which is used in Japan, the United States, etc.
The SC method will be explained. Figure 2 (31 shows a schematic diagram of scanning lines for one frame displayed on the display panel 1 of the display device 1; 14 (solid line) in the same figure is the scanning line of the fourth field. (Scanning line No., (1) to (26)
3)), 15 (broken?, a) is the scanning line of the second field (scanning P; ANo (263') to (525')), and the scanning line of 1, 1 tree, which is so-called interlaced scanning, is 15
．． It is repeated at a frequency of 734 kti Z, one field has a period of 1/60 seconds, 17 rails lXi, a period of L1/30 seconds. Here, since the device of the present invention reproduces a non-stereoscopic general image ffQb1', the general image 1
The time of image reproduction will be explained, and the scanning line mode of the signal outputted from the media device 5 for the song will be explained. Figure 3 (Δ) to (D> are image displays, respectively) device 1
This is the scanning line format of the 1st to 71st fields for the present invention, and these four fields constitute one frame. ) The original data taken out from the VTR etc. is stored in the memory device 5 and read from there. 3
．． i6c is output sequentially in the order of the 4th field, while 11
Temporary regeneration of both body images is for the present invention 1. Third, second. The data are read out sequentially in the order of the fourth field. One field for the present invention is as shown in Fig. 3 (△).
(1), (3), (5),..., (2(31),
(263) Dogen (W, 5'; l: The scanning lines of the 4th field are thinned out every 1'3 and read out so that there are only 1 lines left. In this case, the horizontal scanning frequency is the same as the original signal. 15.7
34 k) lz, therefore, the present invention 1 field [, 1
The period is 1/120 seconds. Similarly, the second field of the present defense is as shown in Figure 3 (B>), (2), (4), ..., (260), (26
2> and the remaining scanning lines of the first field (
Scan i′ in the middle of the scanning line of one field for the present invention! Il
) is read out so as to scan -4, and 1. When the second field is combined, the first field of Hitoshi Hara (71,: scan line (1), (2), ..., (262), <263))
It will be attacked. For these, the horizontal scanning frequency is 15.7
34 kl"l'C", second field i of the present invention,
It has a period of 11/12Of Niji. Similarly, the third field of the present invention, as shown in FIG. The scanning line of the field is thinned out by one line J3 and read out in a scanning pattern, and the fourth field of the present invention is as shown in FIG. 3(D).
As shown in Figure 1, (26/I'), (266'). ..., (522'), (524') and the second original signal
The remaining scanning lines of the field (the middle scanning line of the 3-field scanning line for the present invention) are read out so as to be scanned, and the 3. When the fourth field is combined, the original signal g second field (scanning line (263'), (26
4'), ..., (524'),
(525')) is incremented by 1. These horizontal scanning frequencies are 15.734kHz1, and one field of the present invention has a period C of 1/120 seconds. In this defense, the period for one field of the present invention (1,
, '120 seconds) [The cycle of one field of the current television system < 1/60 seconds]
(, subordinate), the vertical velocity is twice as fast, so that
As shown in Figure 3 (A>), the scanning line is tilted by that amount (angle 1αΔθ).
If you rotate the deflection cork at a relatively small angle of △θ (17° as it is because it is dusty, there is no problem in practical use), the original scanning line can be changed. slope to 1
1 to do (・monkey 1) Next, we will explain about general painting (乍playback. In this case, j
゛Revision camera ε3p+8t), video ear; number switching device 7, synthesis circuit 1, field synchronization river transmission ``] reception ft-
: ”K jj'l 10, Ij+ for field synchronization
``'r minute cancellation circuit 11 and output switch i'i 12
, eye > fi 2) is not 11. Record 1 placed on the cow 6 (,
1-Recording of intra-membrane image i1i') It may be used in the following way. FIG. 4 is a diagram for explaining the order of loading and reading 11 of the memory device 5 in the case of single-film image reproduction. When a television signal is supplied to the memory device 5, the scanning lines (1), (2), ■, . . . Shima ゛η included, Hara 5
In the second field of No. 2, the scanning lines (263'), (264'>.
J: Eel + h work is repeated. △Memory and B memory receive a signal: 1: Input, ``1'' of +Ijiki'', △memory and B, memory mark 4th field of the present invention at a cycle of 1/120 seconds addressed to 1 field (Figure 3 (△))
and the second field ((B) in the same figure), and are stored in the C memory and the D memory (l-i/](:E:), and as described above, the data addressed to the first field of the present invention is 1/120
The C menu and D menu are read out sequentially in the order of 3 seconds (C>) and 4 fields (R) in the same figure. , these are sequentially displayed on the image display device 1. In this way, the first, second, and third images of the present invention are displayed at a cycle of i/120 seconds.
Third. Since it is displayed sequentially in the order of the 4th field, it is almost the same as the display of the current television system, - Intra-film image 7
Do 1ill and 1'? Ru. Next, the stereoscopic image re<[ will be explained. +) As mentioned in ii, a3 is in the image signal switching device 7,
IJ? ! The first field of the signal is the output signal of the left-eye television camera 80, and the second field of the original signal is the output signal of the right-eye television camera 8b, which are respectively switched and taken out, synthesized by the synthesis circuit 4, and then outputted to the camera. X' to device 5
S is included. Figure 5 shows 7! of the menu device 5 in the case of stereoscopic image reproduction. : A diagram for explaining the loading and reading order is shown. In this case, 4. ! A memory and 13
Scanning lines (1), ■, ■, ... are 7 in the memory:
In the second field, C memory and D
-1-ml (263'), (
264'), (265'), ... are -: included,
Next, in the first field of original signal 0, the scanning lines (1), (2), (3), -f, i
L included"+h, V('O1 7t: is sent to each mail in the order as shown in Figure 5. Field synchronization signal generation (signal for field synchronization from R9) 1 field of the present invention, a cycle of 1/420 seconds!'J], ∆me, C memory, B memory, O memory, J, the present invention 1. 3. 2. 1 The optical shutters 3a and 3b of the optical shutter glasses 2 are read out sequentially in the order of the fields, and at the same time, the optical shutters 3a and 3b of the optical shutter glasses 2 In other words, while the signal is being stored in the C memory and the D memory, the A memory is read out and displayed on the image display device 1.
a is heard, signals 1-11 are included in C memory and D memory, 4, and then signals are sent to F memory and A memory; 3) During the input, C memory and B memory are sequentially read out. When this is displayed on both 1-elephant gamma display neck 1, the light shutter 3b for the right eye and the light shutter 3 for /1-11 are displayed.
A is sequentially opened and closed, and the same operation is repeated as shown in FIG. In this way, the content of the first field of the original signal (the output signal of the left-eye television 7J camera 8a) is the first field of the present invention. Second
The contents of the second field of the original signal (
The output (i:6) of the right-day television camera 8b is the third one of the present invention. Minutes 3 to 4th field. η, and,
1! The 1st (left eye), 3rd (right eye), 2nd (left eye), and 1st (right eye) are read out sequentially in the order of 120 seconds, and 10,000 stereoscopic images are created. In FIG. 1, the solid line on the display panel 13 of the image display device 1 indicates both left-eye images, and the broken line indicates right-eye images. This platform reproduces images at a fast field cycle of 1/120 seconds.
1] Less flicker than the conventional one with K1m! ? Ru. In addition, since the memory capacity of the memory device 5 is sufficient for 1.25 frames, the memory capacity ti1 is significantly reduced compared to the conventional system which requires memory for 2 frames. 1. Is it possible to configure it at low cost? Ru. (13, the above example has the same field as 1! 11 Kawanobu Shi 3
Although the configuration is such that an optical signal is supplied from the field synchronization signal 5''J receiving device 710, it is of course possible to supply an electrical signal.Also, as a vertical deflection, Ordinary TV: The field of the present invention is always scanned from the top to the bottom of the screen as in the 1-inch system, but the first and fourth fields of the present invention are scanned from the top in the order of field display. It may be 1-direction downward, from bottom to top, from top to bottom, from bottom to -F, or vice versa, from bottom to 1, from top to bottom, from bottom to top, from top to bottom. Even if the screen goes to
Reading is also carried out in accordance with the order of vertical and vertical distances. In this way, Fi! If you do it like this, you will always have fewer expendable horns that move towards the 0 crystal direction compared to the vertical deflection from the bottom down! ? ,
This improves operational reliability. In addition, the optical shutters 3a and 3b use the 1ζl phase of the optical vibration shifted by 90'', which is shown by vertical lines and horizontal lines, but the present invention is limited to the optical shutters ↑ and ivy. Of course, it would be better to use a mechanical shutter if <j<.
Since both 1'Q7Tr are cooled with a field period of 2, the flicker is less noticeable compared to the conventional one. Since the field period is set to 1/2 of the field period of
All you need is the memory capacity i1 for 8 minutes, which is C compared to the conventional 6.
Li less meshiri ω! ? , 1 cheap JM song 1!1
, you can also change the reading order of the four fields.
, the range of use as a +7 device is limited because <r<
, Also, since the direction of the vertical σ chant is repeated from the top to the bottom of the screen and from the bottom to 10, the power required for deflection is reduced.
<L/ ('?, -9 +! i can improve the dynamic ff confidence bamboo right IJ.

[Brief explanation of drawings]

FIG. 1 [Cock system diagram of one embodiment of the device of the present invention,
FIG. 2 is a schematic diagram showing the scanning line rr1 of the NTSC system, FIG. 3 is a diagram showing the scanning line f of the first and fourth fields obtained by the apparatus of the present invention, and FIG. and Fig. 5 show the memory device for reproducing an intra-film image in the inventive device and the three-dimensional image;,! :Inclusive and ;PJ
It is a diagram for explaining the order of dispensing. . DESCRIPTION OF SYMBOLS 1... Image display device, 2... Optical shifter glasses, 3a, 3b... Optical scissetter, 4... Synthesizing circuit,
5... Memory device, 6... Recording and reproducing device, 7...
Video signal 8-cut 1-piece set, 8a, 8b... Television camera, 9... Field synchronization signal transmitter, 1o.
... Field synchronization signal receiving device, 11... Field synchronization signal separation circuit, 12... Optical shutter drive device, 13... Display panel.

Claims (4)

[Claims] (1) means for obtaining a stereoscopic image composite video signal by alternately switching and extracting a left-eye video signal and a right-eye video signal having a predetermined visual angle difference every field; means for outputting a periodic field synchronization signal; and a means for writing the composite video signal for stereoscopic images, and converting the first field of the original signal into a first field consisting of every other scanning line of the first field. field and a second field consisting of every other scan line of the second field, while converting the original signal second field into a third field consisting of every other scan line of the second field and one remaining scan line. A fourth field consisting of scanning lines left every other book, and a memory means for sequentially reading out the first field, third field, second field, and fourth field in the order of the field synchronization signal; image display means for synchronizing the signal read from the means with the horizontal synchronization signal of the original signal and the field synchronization signal and displaying the first field, third field, second field, and fourth field in the order; An image reproducing device comprising a pair of glasses provided with a left eye shutter and a right eye shutter, respectively, which are opened and closed in synchronization with the field synchronization signal. (2) The memory means and the image display means read out the scanning line signals and perform the vertical deflection of the four fields from top to bottom, from bottom to top, from top to bottom, and from bottom to top on both sides, respectively. 2. The image reproducing apparatus according to claim 1, wherein the image reproducing apparatus is configured such that the order is reversed. (3) A means for outputting a field synchronization signal with a period of 1/2 of the field period of the original signal, a means for writing a general video signal, and writing the first field of the original signal into one of the scanning lines of the first field. a first field consisting of every other scan line and a second field consisting of every other scan line; The third field is made up of scanning lines, and the fourth field is made up of every other scanning line.
a memory means for sequentially reading the fields in the order of the first field, the second field, the third field, and the like by synchronizing the signal read from the memory means with the horizontal synchronization signal of the original signal and the field synchronization signal; An image reproducing device comprising an image display means for displaying images in the order of a fourth field. (4) The memory means and the image display means control the scan line signal readout and vertical deflection of the four fields from the top to the bottom of the screen, from the bottom to the top, from the top to the bottom, from the bottom to the top, or The image reproducing apparatus according to claim 3, wherein the image reproducing apparatus is configured so that the order is reversed.