TWI472223B - Image generating method - Google Patents

Description

Image generation method

The present invention relates to an image generating method, and more particularly to an image generating method for replacing a solid color image portion in an image.

With the popularity of computers, products or services of various images, texts, images, voices, etc. have been digitized and integrated using information technology. Therefore, more and more people will use digital content to assist them in speeches, meetings, teaching and other activities.

Most of the activities are carried out, and the activities of the activities are presented to the participants by live or video broadcast. Referring to Fig. 1, it is a schematic diagram of a film produced by shooting in digital content in the prior art. In the prior art, the digital content 101 and the presenter 102 are often placed in two separate blocks of the movie screen 100. However, in the film taken in this way, the presenter 102 cannot directly compare the corresponding blocks on the digital content 101 with his limbs, and thus the participant who watches the movie has a feeling of being in the scene.

Referring to Fig. 2, it is a schematic diagram of one of the shooting scenes in which the digital content is active in the prior art. In this mode of shooting, the presenter 203 will be placed in front of a solid color curtain 201 for photography by the camera 202. The digital content is then composited into the captured film, corresponding to the block of the solid color curtain 201. In order for the presenter 203 to know its location corresponding to the digital content, a display component 204 is typically placed at the location for the presenter 203 to view the synthesized video in real time. However, since the digital content is displayed on the display element 204 instead of the solid color screen 201, the eyes of the presenter 203 are often oriented toward the display element 204 placed aside. Therefore, participants in the event watching the film will feel that the speaker's eyes are not natural. In addition, if the presenter 203 needs to interact with objects (such as characters or characters) in the synthesized movie, the use of this shooting method often causes the speaker 203 to interact with the objects in the movie inaccurately and to limit the speaker 203. Performance space.

Therefore, an aspect of the present invention provides an image generating method for capturing a solid color image of a staggered display and a first image as a background to obtain a second image with a solid color image as a background, and The portion of the solid image in the second image is replaced with the first image. The image generation method includes the following steps:

(a) Interlace displaying a solid image and a first image.

(b) shooting and processing with the displayed solid color image and the first image as a background to obtain a second image with the solid image as a background.

(c) replacing a portion of the solid image on the second image with the first image to produce a third image.

The application of the present invention has the following advantages. The presenter can directly view the image displayed on the preset background display position without aiming the eye to the additional display elements on the side. Thus, the presenter can have a more natural look in the captured image. In particular, in an embodiment of the present invention, if the presenter needs to interact with the image displayed on the display position (such as writing text, drawing, interacting with objects in the image, or other interactions), the application The invention allows the presenter to interact or note directly with the content in the image, providing the speaker with more precise interactive manipulation. In addition, the digital content on the generated image can have a better display effect, and the display effect is not affected by the shooting environment factor.

The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. The spirit and scope of the invention are not departed.

3 is a flow chart of an image generating method according to an embodiment of the present invention. In the image generating method, the solid color image and the first image of the interlaced display are taken as the background to obtain a second image with the solid color image as the background, and the part of the solid image in the second image is replaced with the first image. image. The image generating method can be implemented as a computer program and stored in a computer readable recording medium, and the computer can execute the image generating method after reading the recording medium. Computer-readable recording media can be read-only memory, flash memory, floppy disk, hard disk, optical disk, flash drive, tape, network accessible database or familiar with the art can easily think of the same The function of the computer can read the recording media.

Fig. 4 is a schematic diagram of a scene in which the image generation method of Fig. 3 is applied. Refer to FIG. 3 and FIG. 4 at the same time. The image generating method 300 includes the following steps: In step 310, a solid color image and a first image are displayed in a preset background display position 401. The step 310 can be achieved by interlacing in the optical field, interleaving in the time domain, interleaving in the spectrum domain, interleaving in the spatial domain, or other interleaving. Referring to Figure 5A, it is an embodiment of a solid color image. The solid image 501 can be a solid color image of green, blue, transparent, or other single color. In another embodiment of the invention, the solid color image may comprise a plurality of blocks of a single color image. In another embodiment of the present invention, a solid color image can be displayed by displaying no image and displaying a solid color image and the first image is a solid color background. However, in other embodiments of the present invention, solid color images may be displayed by other means, and are not limited to the disclosure. Referring to Figure 5B, it is an embodiment of the first image. The first image 502 can include at least one text 502a. Thus, in one embodiment of step 310, the solid color image 501 and the first image 502 may be interleaved at a preset background display position 401. In other embodiments, the first image may include at least one character, at least one picture, at least one movie or other type of digital content, or a combination thereof, and is not limited to the disclosure. In addition, in an embodiment of step 310, a display component (such as a cathode ray tube screen, a liquid crystal screen, or other types of display elements) may be disposed on the preset background display position 401 to interlace the solid image and the first image. Displayed on the display element. In an embodiment of step 310, a projector screen or other projection plane for projection may be disposed on the preset background display position 401 for the projector to interlace the solid color image and the first image thereon. Wherein, a short-focus projector can be used to display the position 401 to the preset background. In this way, the short-focus projector can be placed close to the preset background display position 401, and the speaker 402 before the preset background display position 401 is prevented from being shadowed on the projection path, resulting in poor projection effect. In other embodiments of step 310, the display may be performed by other means, and is not limited to the disclosure.

In step 320, the solid image displayed on the preset background display position 401 and the first image are taken as the background for shooting and processing to obtain a second image (as shown in FIG. 6A) with the solid image as the background.

In step 330, a portion of the solid image on the second image (such as 601 of FIG. 6A) is replaced with the first image to generate a third image (as shown in FIG. 6B). Wherein, the portion of the solid image can be removed by a chroma key technique, and the first image is synthesized onto the area behind the third image to achieve step 330. In this way, if the digital content is interlaced as the first image in the preset background display position 401, the presenter 402 can directly view the preset background display position 401 without aiming the eye to the additional display elements on the side. Thus, the presenter 402 can have a more natural look in the third image produced. In particular, in an embodiment of the present invention, if the presenter 402 needs to interact with the image displayed on the preset background display position 401 (such as writing text, drawing, interacting with objects in the image, or other interactions) When applied, the present invention allows the presenter to directly interact or note with the content in the image, providing the speaker with more precise interactive manipulation. In addition, since the digital content as the first image is replaced by the step 330, it is replaced with the generated third image. Therefore, the digital content on the third image can be replaced with a better display effect, and the display effect is not affected by the shooting environment factor.

In an embodiment of the present invention, step 310 may alternately display the solid color image and the first image in the preset background display position 401 by the time division method. In other words, the solid color image and the first image may be sequentially displayed in turn at the preset background display position 401. Next, step 320 may take a picture with the solid image displayed as a background to obtain a second image with the solid image as the background. When the camera 403 is used for photographing, an active shutter can be mounted on the camera 403. Therefore, when displaying the timing of the first image, the active shutter can shield the shooting of the camera 403; at the timing of the solid color image display, the active shutter does not obscure the camera 403, and the camera 403 can capture the background of the solid color image. Two images.

In addition, the present invention can interleave the solid color image and the first image by optical division (step 310). The optical division method may be a polarization division method, a spectrum division method, a color filter method, a spatial division method, a parallax barrier method, a grating method, an optical refraction method, a viewpoint division method, or other optical division methods. Then, step 320 can use the optical shooting mode corresponding to the solid color image display to take a picture with the solid image displayed as a background to obtain a second image with the solid color image as the background.

In practice, step 310 can alternately display the solid color image and the first image in the preset background display position 401 by different optical characteristics. In other words, the solid image and the first image can be displayed using different optical characteristics on the preset background display position 401. Next, step 320 allows the camera 403 to be photographed to have an optical characteristic that can capture a solid color image display, and to capture a scene with the displayed solid color image as a background. For example, the camera 403 can be equipped with a polarizing lens, a spectrum lens, a color lens, a parallax barrier lens, a grating lens or other optical characteristics corresponding to the optical characteristics of the solid color image display, so that the camera 403 can only be photographed. The optical properties of a solid image display.

In addition, in another embodiment of step 320, a fourth image may be captured by using the displayed solid color image and the first image as a background. Next, a second image with the solid image as the background is filtered from the fourth image. For example, an image corresponding to the display timing of the first image may be filtered from the fourth image to generate a second image with the solid image as the background.

In addition, the image generating method may further include the following steps: detecting an interactive command when shooting. Next, the first image staggered in step 310 is modified on the fly according to the interactive instruction. In this way, in one application scenario of the present invention, the content presented in the first image can be modified in real time, so that the presenter 402 can be not limited to the existing content of the first image, and the content of the speech is more flexible.

It will be apparent from the above-described embodiments of the present invention that the application of the present invention has the following advantages. The presenter can directly view the image displayed on the preset background display position without aiming the eye to the additional display elements on the side. Thus, the presenter can have a more natural look in the captured image. In particular, in an embodiment of the present invention, if the presenter needs to interact with an image displayed on a preset background display position (eg, writing an image on a video, drawing a picture, interacting with an object in the image, or other interaction) The application of the present invention enables the presenter to directly interact or note with the content in the image, providing the speaker with more precise interactive manipulation. In addition, the digital content on the generated image can have a better display effect, and the display effect is not affected by the shooting environment factor.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100. . . Movie screen

101. . . Digital content

102. . . The speaker

201. . . Solid color curtain

202. . . camera

203. . . The speaker

204. . . Display component

300. . . Image generation method

310～330. . . step

401. . . Preset background display position

402. . . The speaker

403. . . camera

501. . . Solid image

502. . . First image

502a. . . Text

601. . . Part of the solid image on the second image

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

Figure 1 is a schematic diagram of a film produced in the prior art for taking pictures of activities performed in digital content.

Fig. 2 is a schematic diagram showing one of the shooting scenes in which the digital content is active in the prior art.

3 is a flow chart of an image generating method according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a scene in which the image generation method of Fig. 3 is applied.

Figure 5A is an embodiment of a solid color image.

Figure 5B is an embodiment of the first image.

Figure 6A is an embodiment of a second image with a solid color image as the background.

Figure 6B is an embodiment of a third image after replacing the solid image portion with the first image.

300. . . Image generation method

310～330. . . step

Claims (10)

An image generating method includes: (a) interlacing a solid color image and a first image; (b) capturing and processing the solid color image and the first image as a background to obtain the solid color image as a second image of the background; and (c) replacing the portion of the solid image on the second image with the first image to generate a third image. The image generating method of claim 1, wherein the step (a) comprises: interlacing the solid color image and the first image in a time division manner. The image generating method of claim 2, wherein the step (b) comprises: taking a picture of the solid color image as a background when the time corresponding to the display of the solid color image is taken, to obtain the background of the solid color image Second image. The image generating method of claim 1, wherein the step (a) comprises: interlacing the solid color image and the first image in an optical division manner. The image generating method of claim 4, wherein the step (b) comprises: using the optical shooting mode corresponding to the display of the solid color image, taking the solid color image displayed as a background to obtain the background image of the solid color image; The second image. The image generation method according to claim 4, wherein the optical division method comprises a polarization division method, a spectrum division method, a color filtering method, a spatial division method, a parallax shielding method, a grating method, an optical refraction method, or a viewpoint division method. The image generating method of claim 1, wherein the step (b) comprises: capturing a fourth image with the displayed solid color image and the first image as a background; and filtering out the solid color from the fourth image The image is the second image of the background. The image generating method of claim 1, wherein the step (a) comprises: interlacing the solid color image and the first image to a display element. The image generating method of claim 1, wherein the step (a) comprises: interlacing the solid color image and the first image in a projection plane. The image generating method of claim 1, further comprising: detecting an interactive command when shooting, and modifying the first image according to the interactive command.