TWI415476B - Method for alternatively displaying stream of images - Google Patents

Abstract

The invention provides a carousel method for a streaming video, and the method is applied in a player, the method comprises steps of setting the page dividing number of carousel pages; calculating the number of the carousel pages according to the address number of streaming videos and the page dividing number; establishing a predetermined number of display blocks according to the page dividing number, and assigning the display blocks to the carousel pages; making the player display a carousel page on the screen, making the display zone assigned by the carousel page perform play of streaming videos, and making the display block assigned by the following carousel page of the carousel page perform preload of the streaming videos; and performing switch of the carousel pages to make the player be capable of timely performing play of the streaming videos from the carousel page to the following carousel page. Via the above way, the carousel method can solve video delay phenomenon generated during carousel, further facilitating a user to timely monitor the videos.

Description

Streaming image carousel method

The present invention relates to an image carousel method, and more particularly to a method for displaying a streaming image image of a streaming image.

The conventional analog video playback system, as shown in FIG. 1A, uses the split image processor 10 to receive analog image signals a, b, c, and d of four (or other numbers of) cameras, which are processed and output to the television. 11. The screen of the television set 11 is divided into four areas, and an image transmitted from a camera is displayed in each of them. The output signal of the quad split image processor 10 can also be input to the video recorder 12 for video recording.

In general, the display of the television set 11 is 30 frames per second. This display is set in accordance with the effect of the persistence of human vision, and thus the presented picture is a stable and continuous picture for humans. However, the analog video playback system cannot be quickly connected to the external security system, and the stored images are easily stolen.

With the development of computer digital technology, the conventional analog image playback system has been replaced by a digital method. As shown in FIG. 1B, an image capture card 201 is provided in the computer host 20, and the computer host 20 can receive analog image signals of four cameras. a, b, c, and d are converted into digital signals and sent to the display 21. The screen of the display 21 is divided into four areas, each of which is used to display an image transmitted by a camera. The digital output signal of the image capture card 201 can be further input to the hard disk drive 202, or the image can be instantly transmitted to the external security system through the network. Since the image capturing card 201 has only one image processor, it processes the classified image signals a, b, c, and d sent by the four cameras in a time-sharing manner, so each area of the four areas on the screen is every second. Only 7.5 images (30÷4=7.5) can be displayed, making the image discontinuous.

In order to solve the above shortcomings, the industry has proposed a playback system for streaming images, which uses the network as a transmission architecture to transmit images and sounds monitored by an IP camera (IPCAM), which are mostly set by a fixed number of components. The IP address to play. As shown in FIG. 1C, the controller 30 connects a plurality of stream image addresses, and displays the stream image on the screen 31 of the display. The screen 31 of the display displays only one page at a time, and the page can be divided into multiple The block area is arranged in each area with display blocks 311 to 31N to display images transmitted from a plurality of stream image addresses. However, the disadvantage of the playback system is that the streaming image to be displayed needs to be reloaded when switching from the first page to the second page. However, due to the network bandwidth and data processing speed, a large amount of delay is caused.

In view of the above disadvantages of the prior art, an object of the present invention is to provide a method for displaying a streaming image carousel to solve the problem that the analog image system cannot be quickly connected to the outside world, the digital image is discontinuous, and the image of the streaming image is delayed.

To achieve the foregoing and other objects, the present invention provides a streaming video carousel method for applying to a player, comprising the steps of: (1) setting a page split number of a carousel page; (2) depending on a stream video bit position The number of addresses and the number of pages divided to calculate the number of pages of the carousel page; (3) establishing a predetermined number of display blocks according to the number of page divisions, and assigning the display blocks to the carousel pages; (4) Having the player display a page of the carousel on the screen, and cause the display block allocated by the page of the page to play the streaming image, and the next page of the page of the carousel is allocated The display block performs preloading of the streaming image; and (5) switching the carousel page to enable the player to immediately stream the image when switching from the page carousel page to the next page carousel page Play.

The number of pages of the above-mentioned carousel page is the number of the stream image address divided by the number of page divisions. The predetermined number of display blocks is a multiple of the number of page divisions. In another embodiment, the predetermined number of display blocks is twice the number of page splits.

Compared with the prior art, the streaming image carousel method of the present invention divides a hardware (such as a display screen) by software, and uses multiple display blocks to distribute streaming images to achieve instant streaming. The purpose of the image.

In the following, the technical content of the present invention will be described by a specific embodiment, and those skilled in the art can easily understand other advantages and effects of the present invention by the contents disclosed in the present specification, and can also be implemented by other different embodiments. Or application.

Referring to FIG. 2, the streaming image carousel method of the present invention includes steps S401 to S405.

In step S401, the number of page divisions of the carousel page is set. Since the player's screen displays only one page of the carousel page at a time, the number of page divisions of the carousel page is set such that the page can be divided into a plurality of areas to display a plurality of stream images. Proceeding to step S402.

In step S402, the number of pages of the carousel page is calculated according to the number of addresses of the stream image and the number of page divisions. In detail, the number of pages of the carousel page is the number of addresses of the stream image divided by the number of page divisions, that is, the screen of the player displays one carousel page at a time and the carousel page has a plurality of areas to display a plurality of areas. In the case of streaming images, how many carousel pages are needed to provide display of streaming images, and the number of pages of the carousel page is switched on the player's screen. Then it proceeds to step S403.

In step S403, a predetermined number of display blocks are established according to the page division number, and the display blocks are allocated to the rotation pages. The predetermined number of display blocks is a multiple of the number of divisions of the page. In a preferred embodiment, the predetermined number of display blocks is twice the number of divisions of the page. Then it proceeds to step S404.

In step S404, the player displays a page of the carousel on the screen and the display block allocated by the page carousel page plays the streaming image, and the next page of the page carousel is rotated. The assigned display block performs preloading of the streaming image. Specifically, the player's screen displays only one page of the carousel page at a time, and the page carousel page is divided into several areas, and the display block is allocated to the area of the page carousel page to play the stream image. Another stream image is pre-downloaded in the area divided by the next page of the page of the page, so that the other stream image can be played immediately when the player switches to the carousel page of the next page. In other words, the stream image addresses can be divided into multiple arrays according to the number of pages of the carousel page, so that when the display block allocated by the page carousel page plays a stream image of a group of stream image addresses, The display block allocated by the next page of the carousel preloads the stream image of another set of streaming image addresses. Then it proceeds to step S405.

In step S405, switching of the carousel page is performed to display the rotated carousel page.

It is understood by steps S401 to S405 described in FIG. 2 that the number of display blocks is designed to be a multiple of the number of page divisions, which is intended to be when the player displays the first page of the carousel page and the page is allocated. When the display block plays the streaming image of the first group of streaming image addresses, the second page of the first page of the first page of the carousel is displayed, and the allocated display block pre-downloads the second set of streaming image bits. Streaming image of the address; hidden when the player switches to the second page carousel page to display the second page carousel page and the display block allocated by the page plays the stream image of the third group of streaming image addresses The third page carousel page at the back end of the second page carousel page has its assigned display block pre-downloaded the stream image of the fourth group of stream image addresses; and so on. It should be noted that the "group" of the first group or the second group is determined according to the number of page divisions of the carousel page, for example, the number of page divisions of the carousel page is two, then the first stream image address and the second group The streamed image of the streamed image address is a streamed image of the first set of streamed image addresses. Therefore, the streaming video carousel method of the present invention can solve the problem that the image cannot be played immediately when switching to the next round of the page caused by receiving the data packet while playing the streaming image.

Next, please refer to FIG. 3, which is a schematic diagram of the streaming image carousel method of the present invention applied to a player. As shown, the player 5 connects four stream image addresses 41, 42, 43, 44 using a network. When the number of page divisions of the player 5 is set to two, the carousel page is divided into two areas for displaying the stream images of the two addresses, so that the required carousel pages 51, 51' are two pages. In addition, a fixed number of display blocks are created, and the number of display blocks is preferably twice the number of page divisions, that is, four display blocks 511, 512, 513, and 514, and the display blocks 511, 512, 513, 514 are assigned to the carousel pages 51, 51' as shown in FIG. Furthermore, the control module 50 receives the stream images transmitted by the stream image addresses 41, 42, 43, 44, and distributes the stream images to the display blocks 511 on the carousels 51 and 51', 512, 513, 514. Since the screen of the player 5 displays only one page of the carousel page 51 at a time, the display blocks 511, 512 of the carousel page 51 displayed by the player 5 are received from the stream image addresses 41, 42. Streaming image. At the same time, the carousel page 52 is hidden at the back end of the carousel page 51 to download the stream video images from the stream video address 43, 44 in advance, so that the player 5 can display immediately when switching from the carousel page 51 to the carousel page 52. The preloaded streaming image is not ready to be downloaded until the player 5 switches to the carousel page 52, resulting in a delay in time.

In summary, the display streaming image carousel method of the present invention is designed to solve the image delay problem of the conventional carousel streaming image, and the number of display blocks is a multiple of the number of page divisions of the carousel page, When the player's screen displays a page of the carousel and the display block allocated by the page carousel page plays the streaming image, the next page of the page is hidden at the back end of the page carousel page and the next one The display block allocated by the page carousel page preloads the streaming image, thereby achieving the effect of playing the streaming image instantly when the page carousel page is switched to the next page carousel page.

The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.

10. . . Split image processor

11. . . TV set

12. . . video recorder

20. . . Computer host

201. . . Video capture card

202. . . Hard disk drive

twenty one. . . monitor

30. . . Controller

31. . . Display screen

311~31N. . . Display block

41, 42, 43, 44. . . Streaming image address

5. . . player

50. . . Control module

51, 51', 52. . . Carousel page

511, 512, 513, 514. . . Display block

a, b, c, d. . . Analog image signal

S401～S405. . . step

Figure 1A is a block diagram of the architecture of a conventional analog video playback system;

Figure 1B is an architectural block diagram of a conventional system for playing analog images in digital mode;

Figure 1C is a block diagram of the architecture of a conventional streaming video playback system;

2 is a flow chart of a streaming image carousel method of the present invention;

FIG. 3 is a schematic diagram of the method for executing a streaming image carousel of the present invention applied to a player.

S401~S405. . . step

Claims (6)

A streaming video carousel method is applied to a player, and the streaming image carousel method comprises the following steps: (1) setting a page segmentation number of a carousel page; (2) according to the number of stream video address addresses and the Calculating the number of pages of the carousel page; (3) establishing a predetermined number of display blocks according to the number of page divisions, and assigning the display blocks to the carousel pages; (4) making the player Displaying a one-page carousel page on the screen, and causing the display block allocated by the page carousel page to play the streaming image, and making the display block allocated by the next page carousel page of the page carousel page Performing preloading of the streaming image; and (5) switching the carousel page to cause the player to play the streaming video when switching from the page carousel page to the next page carousel page. The streaming video carousel method of claim 1, wherein the number of pages of the carousel page is the number of the stream image address divided by the number of page divisions. The streaming video carousel method of claim 1, wherein the predetermined number of the display blocks is a multiple of the number of page divisions. The streaming video carousel method of claim 3, wherein the predetermined number of the display blocks is twice the number of the page divisions. The streaming video carousel method of claim 1, wherein in step (4), the display blocks are allocated to the carousel pages according to the number of page divisions. The streaming video carousel method according to claim 1, wherein in the step (4), the multiplexing comprises dividing the stream image addresses into a complex array according to the number of pages of the carousel page, When the display block allocated by the page carousel page plays a streaming image of a set of streaming image addresses, the display block allocated by the next page of the carousel page preloads another set of streaming image bits. Streaming image of the address.