JPS5895786A - Image display system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a one-image display system, in particular, when displaying a plurality of objects that are in front and back from the perspective of perspective, one image of an object located in front of the object is displayed. This invention relates to a one-frame display system in which an object behind is displayed in its natural state even if it is erased.

For example, when displaying an image on a graphic terminal used as a terminal device for a data processing device, l1l
As shown in 11fl, when setting 8-display 1-meter image data to the ghost memory 1, divide this m-image data that should be displayed as 0 into three digital signals: red (legs, limbs) and real (B). 1-bit tooth surface memory area for red that constitutes the IIki image memory 2. 1 bit tst+tJ memory area 3 for rut and l bit I! for actual use. The red, edge, and t digital signals are stored in the Ii-plane memory area 4. When displaying this on the display monitor 8, the true nature of each component for the pixel of IIJ- is simultaneously brought out, and the true nature of each component for the pixel of IIJ- is brought out at the same time, and it is converted into an analog one sweetness by digital/analog (D/A) conversion-5, 6, and 7, respectively. The image is converted and displayed on the color ORT display monitor 8.

Now, in the red, edge, and blue llli plane memory areas 2 to 4.

Fig.2
”.

0 is displayed on the monitor 8.
1I2btJ), a - image is displayed. In this case, a portion where two or more color components overlap is displayed as a mixed color. Therefore, red and evening J1gILiA
The area is i-zenda, and the red and green overlap area is yellow.

In fact, the 11g1 area at the edge will be displayed in cyan, and the area where all three colors overlap will be displayed in white.

Therefore, if from the front to the rear, red, edges,
If objects are lined up in a row, as shown in Figure G2), the colors of the objects will be blurred and it will be impossible to distinguish between their contexts.

Therefore, in the past, 11 images of the object were stored in the image memory.
Fixed the g1 section in advance (if you look at it, the red object is 1IIki)
Figure 3: 11 parts have 1 I color model (forged imitation department), and software or software has been installed in front of all staff. Images such as those shown in ) to (c) were written in the screen memory area for each 6. According to this, only objects in the foreground are displayed in the zero-overlapping portion as shown in FIG. 4(a), so it is easy to understand the context of the objects.

However, with this method, the information about the object behind the front hidden in the font is not stored in memory, so for example, if you erase the red object at the front, the object behind Maro will not appear.
There is a problem that it becomes a negative image as shown in Fig. 4←).

Therefore, it is an object of the present invention to provide an image display method that improves this problem and allows objects in the rear to be displayed as they are even if objects in the foreground are erased. For this purpose, in the im*il display method of the present invention, when a plurality of objects are displayed in front and behind each other, a storage means for storing image information of each of these objects, and i*i are provided. # In an image display device having a display means for configuring and displaying these object images based on the information, 1w
By providing a gate means that receives the output of the memory means and controlling the dart means on and off depending on the presence or absence of image information of the object located in front of the object, the scissors are activated when there is an object in front of the object. The image information of the object behind the object that is hidden by the object in front is blocked from being input to the display means, and when the object in front is not displayed, the image information of the object behind the object hidden behind the object is blocked from being input to the display means. It is characterized by displaying hidden objects behind the user's mouth.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the present invention in detail based on one embodiment, a brief explanation will be given below.

In the present invention, when multiple objects are displayed in front and back, as shown in Fig. 4 ←), when the previous red object is erased, it is hidden by this red tube. The edge object and the actual body are displayed as shown in *sm.

An embodiment of the present invention will be explained in detail in 116w1.

In the figure, the same reference numerals as in FIG. 1 indicate the same parts, 9.degree.10 is an AND gate, and 11.12 is an inverter.

13 is an OR circuit.

In the inverter 11, there may be a '1lji surface area 2 or 1li
When "l" indicating the existence of the i image is output, it outputs "0", so the AND gate 9 is turned off, and the image data transmitted from the 9ti screen blur area 3 is output. do not. Invar $12 ore li again! When rlJ indicating the existence of #J is output from the i-plane memory area 2 or the lli1-plane memory area 3, it outputs "0", turns off 1G, and transmits it from the m#J memory area 4. Do not output image data that will be displayed.

When the display data on the display monitor 8 is output from each screen memory area at the same time in the tig diagram, the data successively output from the 1-bit screen memory area 4g area 2 for red is converted to the same value. The signal is transmitted to the 1st display monitor 8 as an analog signal and is displayed as it is on the 1 display monitor 8. However, since the data read from the 1lII surface memory area 3 for green is transmitted to the converter 6 via the AND gate 9, the data in the 1lII plane memory area 3 for green is transmitted to the converter 6 through the AND gate 9. " indicates the existence of
When "l" is output, the bird inverter 11 outputs rOJ and turns off the AND gate 9. Therefore, even if rlJ indicating the existence of an object on the edge is output from the memory area 3 between the #gaeko and the self-drawing, the AND gate is output. - Gate 9 is not output because it is OR, and the part located behind the red object will be hidden and displayed. Similarly, 1-bit 1-side me 4v area 4 for blue
When "l" is output from the m-plane memory area 2t or 3, the OR circuit 13 outputs "1" and the inverter 12 outputs rOJ and outputs "AND").
Make 10 an or. Therefore, a blue object behind a red object or a green object will be hidden and displayed. In this way, even if one signal is not stored in the negative plane memory area 3#4 in the state shown in FIG. 3, the hidden context, such as the object in front and the object in the back, can be clearly displayed as shown in tM4wJ&>. It can be used as a bird. Moreover, if you erase the object in the foreground 1, for example, the red object, the Ip'-/11 will always output "l", so the signal output from the AND gate 9Fi's surface memory area 3 will be output as is. So.

This time, it will be a good idea to obtain a display image as shown in Figure 115.

A changeover switch S is provided so that the conventional overlapping screen display shown in Fig. 82) and the replacement mode display of the present invention shown in the ms diagram can be switched.

If you control the changeover switch S to the contact S-0 side where "0" is transmitted, it will be a NAND game.

15 always outputs rlJ, and AND gate 9°lO is in an on state. Therefore, the image data written in each one-side memory area 2 to 4 is stored in the D/A transformers 5 to 7, respectively.
The data is converted into analog data and transmitted to the Il display monitor 8, and therefore the display monitor 8 displays a self-overlapping mode as shown in FIG. 813.

However, the contact 8 to which "1" is transmitted to the changeover switch 8
If you switch control to the -1 side, Nando Goo) 14 is Il
"l" when rOJ is output from i-plane memory area 2
is output and AND gate 9 is turned on, but "l
” is output, the pin outputs “0” and turns off the AND gate 9. Then Nando Gate LS is screen 7
When rlJ from 4g region 2 or sIP is output, the wealth and goo F1G is turned off, and when rOJ is output, the AND gate 1G is turned on. Therefore, the display monitor 8 displays the state shown in Fig. 4 B),
Furthermore, if the image data in the screen image area 2 is deleted, the display shown in FIG. 5 will be displayed as shown in FIG. 3 examples l181i! 0 118 In FIG. 118, one image memory 20 stores an area 20 - 1 . Screen memory area 2G-2 of an object at a distance ■, gjA-plane memory area 2G-3 of an object located at a distance ■ - Screen memory area 2 of an object located at a distance N
0-N, the distance I is the frontmost one, and the distance N is the rearmost one.

1st look up φ table (hereinafter referred to as look up φ table)
The table (referred to as LUT) 22 produces red, edge, and blue output signals, each having a predetermined number of bits, based on a 1-bit input signal. , all output bits are O. Happy! L.U.
T1B-L, MINLUT25 is also the glLUT2m
It is configured in the same way as . Adder 36 is happy x
Red @1ff output from LUTgz~NLUT25
The adders 37 and 38 add the edge signals G output from the first LUT 22 to the NLUT 25.
The digital addition output signals of the adders 36 to 38 are respectively converted to analog signals by the D/A converters 39 to 41, and a color image corresponding to these signals is displayed. It will be displayed on the monitor 21.

In the tSS diagram, contact 8-111CI, where "1" is applied to the changeover switch S! If you continue, Nando Gate 29-3J! rlJ is applied to one input terminal of each. Therefore, screen memory area 20-1
"L" is output from Shichitomi Nando Goo) 29arO
J is output, AND gate 28ft is turned off, and the signal from the screen memory area 20-2 is not output, but when "0" is output from the 1-screen memory area 20-1, the own NAND gate 29 outputs rlJ. 26 turns on and outputs the signal from the screen memory area 20-2,
*2 Transmit to LUT23. Also, 1 screen mail order area 2G
-1 and the screen memory area 20-2, the wealth-or gate 33 outputs "l", so the NAND gate 30 outputs "0" and the AND gate 27 To turn off the screen printing area 20-
The output signal 't from 3 is not transmitted to 1i3 LUT24. However, screen memory area 20-1 and Ii&1ili
When the li memory area 20-2 outputs rOJ and the OR gate 33 outputs rOJ, the NAND gate 30 outputs "1" and turns on the two AND darts, so one screen is displayed. The output signal from the rear region 20-3 will be transmitted to @gLIJT24.

In this way, the output signal of the screen memory area 20-3 is 3LUT!
4 will not be transmitted.

84 is screen memory area 2 fist - 1 to 2
If rxJ is entered in at least one of 0-8,
81 outputs rOJ,
When rlJ is output from at least one of the screen lock areas immediately before the screen lock area 20-N, *rlJ is output, and the NAND gate 32 outputs rOJ.

Turn off AND gate 28. In this way, it is advantageous to use the logical sum of the display signals of objects in the foreground as a suppression signal for objects in the rear.
In the case of the H8 diagram, it is possible to display up to eight objects. Increasing the number of screen screen areas in this manner increases the ability to display objects at various distances. Of course, the changeover switch S is always connected to the contact s = 0 is applied.
o@tp:, @Continuing, AND gates 26 to 2s are all in the ON state.91 For example, in Yuki 2 wJ), it is possible to display in overlapping mode. For example, let's explain about Figure 9. In Figure 119, 0 image memory 4 is used to enable gradation display.
The screen memory area 4ji-1 for red in 2, the screen memory area 42-i for requisition, and the mWl memory area 42- for Yoizuki.
8 is assigned a plurality of bits as a 1m elementary signal.

Therefore, it is difficult to perform appropriately determined a-light gradation display. Therefore, the converter 43 to D/
A plurality of bits (Sl
) outputs an analog signal corresponding to the gradation indicated by the gradation and transmits it to the display monitor 46. Also, the output of the screen display area 42-1 is adapted to the OR circuit 47. If S is in the replacement code that outputs rlJ, the four OR circuits will output rlJ and perform NAND if at least one bit of the output of the body bit in the screen printing area 42-1 is rlJ. Since the gate 49 outputs rOJ, turn off the gates 50 to 52,
The output of the i-side menu area 42-2 is blocked. Similarly, when at least one bit of the n&bit output of the screen memory area 42-2 is rlj, the OR circuit 48.57 bits "1"
", and when at least l bits of the 1-bit output of the m-plane memory area 42-1 are rlJ, the OR circuit 47.57 outputs rlJ, and both of them are NAND.
Goo)! Because it outputs 58tir@J.

The AND gates 53 to 5s are turned off, and the output of 1 bit from the 1IIi plane memory area 42-3 is blocked. In this way, the logical sum of each bit of the image qIi in the screen memory area can be used as a suppression signal for the image signal of the object behind it. If you switch to the contact S-0 side where is applied, Nando Goo) 4G
, j6 will output rlJ, so the output lines of the 0 screen screen area 42-2 and the screen screen area 42-3 are Since it is transmitted to the converters 44 and 45 and converted into an analog signal, the 0 display peak data 46 is
The items outputted from the g areas 42-1 to 42-3 and displayed in a light shaded manner will be displayed in the one-overlap mode. Note 8
Referring to Figure 19, each screen image area 42-1 to 42-3
The bit numbers s1 to mf3 can be selected as appropriate even if they are the same or different numbers.

A tXS embodiment of the invention will be described with reference to FIG.

In Fig. 11110, the 1illi plane memory areas 5B-1 to all-N of objects located at distances I to N are set to sk't (S≧2) in the image map S8, and l1lL is set accordingly.
UT! ! This is for controlling the 9th to NLUT 62. lol
7A11ilr The distance relationship of objects held in memory areas 1g-1 to 58-11C is similar to the tiii memory areas 20-1 to 20-N in FIG.
8-1 is the moth facing forward, and the six-sided memory area 58-N is the rearmost portion. In addition, the first LUTs s to IINLUT62 have input bits, and outputs have appropriate bit numbers for red, edge, and real, respectively, depending on necessity. The length and input pit are all rO.
The output bits of J are all rOJ, and the other bits get output signals set in advance according to the value of the input signal.Therefore, l1lLUT59 is the screen memory area 5.
Color output signal section, edge according to the output signal of 8-1.

The green signal G is transmitted to the adder 84, and the green signal B is transmitted to the adder 84.
is mistaken by the adder 85.

Now, when the changeover switch S is set to the replacement mode and rlJ is output and this is transmitted to the NAND gates 67 to 70, at least one bit of the output of the morning bit of the wealth 0 screen memory area 58-1 becomes "l". ”, the OR circuit 6s is rl
J and 1 Nando Goo) 67 outputs rOJ, so And Goo) 71 to 73 are turned off, and the output of the 1-screen memory area 58-2 is blocked and a12LU'T60c
Not communicated. Similarly, if at least one bit of the output of the screen memory area 58-2 is "l", the OR circuit 64.80 outputs rlJ, and if at least one bit of the output of the m-plane rotation area 58-1 is "l", In the case of rlJ, the OR circuit 80 similarly outputs "l" and the NAND gate 41J
I outputs rQJ&, and darts 74-76 become OR and 1. The output of the screen memory area 58-3 is U3LUT@
It is not transmitted to l. In this way, the image signal of the object behind can be suppressed by the OR of each bit in the front screen memory area. And 1II LUT
The red signals outputted from l$9 to NLUT62 are added by the adder 83, and D/A conversion @86
The signal is converted into an analog signal and transmitted to the display element 89. Similarly, each green signal G and betrayal jB are also added %.
The signals are added at 84.85, converted into an analog signal at D/Am conversion 87.88, and transmitted to the 1-display monitor 89. In this manner, when the changeover switch S is in the IT change mode, it is possible to display the force 2- of each object on the scale 0 display mode = 189 so that the context of each object can be clearly seen. Of course, selector switch S
tSwitch to overlapping moded, and each double image mode 4w area 58-1 to 6
The outputs of 8-N are each Ill LUTJI s~ without being blocked by 71~79 etc.
Since the information is transmitted to IINLUT@2, it is possible to display these in the overlapping mode.

In the embodiment shown in Fig. 1110, it is possible not only to display each of the 8 objects at different distances, but also to display LOT such as 7 all-scalar display, pseudo-color display, natural color display, etc. It is possible to perform display freely depending on the settings.

As explained above, according to the present invention, when an object in the foreground as viewed from the viewer is displayed, first, the display signal of the object is used to suppress the display signal of the font in the rear, thereby clearly expressing the context of the object. Because I am self-sufficient.

Even if the object in front is erased, it is possible to accurately display the object in the rear, thereby providing an extremely excellent display device.

[Brief explanation of drawings]

Figure 111 is a conventional display device, Figures 2 to 114 are its production form 11 and explanation of problems @, mS diagram is a detailed explanatory diagram of the present invention, and Figures 2 to 11 are implementations of the present invention. This is an example configuration diagram ◎ In the figure, 1 is the image memory, 2 to 4 are the screen mail order areas, and 5 to
7a D/A conversion number, 8 is the expression yy < mo x 1 m 9 el O μ and go), 11. 12 company inverter, OR circuit at 1 m, 14. lS is a NAND gate, 20 is an image memory,
20-1 to 20-N are the screen area, 21tilt indicates 4! Evening, 22-2s Tsumu Iil Rutsuta Up Table ~ Happy N Look Up Table, 26-28 are AND gates, 29-32 are NAND gates, 33-3s are OR circuits, 36-5s Lfi addition plow, 39-41 are D/
A converters 42 is an image memory, 42-1 to 42-3 are screen memory areas, 43 to 45 are D/A conversion units, 46 is an data for each display, 47.48 is an OR circuit, 49 is a NAND gate, 50 to 55 are AND darts, 56 is a NAND gate, 57 is an OR circuit, 58 is an image peak, 58-1 to
58-N is the 49th screen area, 59-62 are the 1st look area.
Up Table ~ Nth Look Up Table, 6
3-66 are OR circuits, 67-70 are NAND gates, 7
1 to 79X are and goo), 80 to 82 are OR circuits,
83 to 85 are additions, 86 to 88 are rugo conversion, and 89 company display is If. S indicates a changeover switch. Patent Applicant: Fujitsu Limited Company/e-person 4$1 Only Yu Mei Kamo Karasu-1

Claims (1)

[Claims] (1) When 8aI objects are located in front and behind each other, images of these objects are constructed and displayed based on the storage means that stores the uniform information of each of these valley objects and the image information. In the display device having a display means, a gate means is provided to receive the output of the storage means, and the gate means is turned on and off according to the presence of the integral painter information located in front. If there is an object in front of the origin, the front font: Prevents the input of the hidden rear integrated image information to the display means, and if the front object is not displayed, the front font - 1. A display system in which image information of a hidden object behind the subject is inputted to the display means to display the hidden object behind the subject.