JP5023362B2 - 3D image playback device - Google Patents

Description

  The present invention relates to a stereoscopic video reproduction apparatus that simultaneously projects a first video and a second video with light having different polarization directions.

Conventionally, as a method of projecting a stereoscopic image with a sense of popping, there is a method in which a viewer views a stereoscopic image using special glasses having a liquid crystal shutter (for example, Patent Document 1). In this method, for example, a right eye image and a left eye image are projected alternately from a projector or the like, and the liquid crystal shutters for the right eye and the left eye of the special glasses worn by the viewer are alternately opened and closed according to the projection timing. To control. As a result, only the right-eye video can be seen by the viewer's right eye and only the left-eye video can be seen by the left eye, so that the viewer can view the stereoscopic video.
JP 2001-125042 A

  However, in such a stereoscopic video viewing method using the liquid crystal shutter method, it is difficult to accurately synchronize the projection timing of the projector and the liquid crystal shutter opening / closing timing of the glasses, the hardware configuration is complicated, and the system is expensive. There were problems such as the viewer's eyes getting tired.

Therefore, the present invention proposes a stereoscopic video playback device that is realized by a simple hardware configuration. Specifically, a first light source unit including a light source and a first polarizing filter that polarizes light of the light source, and a light source and a second polarizing filter that changes the polarization angle of the light of the light source from the first polarizing filter. A second light source unit, a first panel unit that transmits light from the first light source unit and projects a first image on the screen, and transmits light from the second light source unit and emits it from the second panel unit. A second panel unit that projects a second image on the screen by shifting a predetermined amount from the first image so that the light to be emitted is changed in polarization angle with the light emitted from the first panel unit, and both panel units Based on 3D video information for generating the first video and the second video, a 3D video drive unit, an optical path adjustment unit for adjusting the optical path part including the light source and the panel unit, and the control information And a control unit that controls the optical path adjustment unit. According to the distance to Luo screen, it proposes a stereoscopic image reproducing apparatus for adjusting the distance between both the light source and the both panels.

  FIG. 1 is a diagram showing an outline of a stereoscopic video reproduction apparatus according to the present invention. The stereoscopic video reproduction apparatus according to the present invention transmits a light from the first light source unit 0106 configured by a light source 0101a and a first polarizing filter 0102 that polarizes light of the light source, and transmits light from the first light source unit 0106. A first panel unit 0104 for projecting one image is provided. Similarly, the second light source unit 0107 configured by the light source 0101b and the second polarizing filter 0103 that polarizes the light of the light source, and the second image to transmit the light from the second light source unit 0107 and project the second image. The second panel portion 0105 is also included. That is, the light emitted from the light source 0101 a is irradiated on the first panel unit 0104 that is polarized by the first polarizing filter 0102 and outputs the first image, whereby the first image 0109 is projected on the screen 0108. Is done. As described above, the first image 0109 is projected onto the screen 0108, and at the same time, the light emitted from the light source 0101b is polarized by the second polarizing filter 0103 and is output to the second panel unit 0105 where the second image is output. The second image 0110 is projected on the screen 0108 by being irradiated. The first video 0109 and the second video 0110 are characterized by being projected with a predetermined amount 0111 shift. Also, the first polarizing filter 0102 and the second polarizing filter 0103 have different polarization directions, and the first image 0109 and the second image 0110 projected on the screen 0108 are projected with light having different polarization directions. Is done. The viewer views the two overlapping images projected with light of different polarization directions in this way using polarized glasses, thereby simultaneously viewing the first image with the left eye and the second image with the right eye. Thus, these can be viewed as a three-dimensional video with a sense of popping out. The first panel unit 0104 and the second panel unit 0105 can use a commonly used liquid crystal panel or the like.

  The stereoscopic video reproduction device according to the present invention may further include an optical path adjustment unit that adjusts an optical path part such as a light source and a panel unit, and a control unit that controls the optical path adjustment unit based on control information. Good. Moreover, you may further have the extraction part which extracts control information from 3D video information. Moreover, you may further have a reception part which receives the input of control information. Moreover, you may further have a 1st 2D image | video drive part which stops either one among both panel parts and drives the other one panel part based on 2D image | video information. In addition, it further includes a second 2D video drive unit that stops one of the light source units and drives the panel unit to transmit the light of the other light source unit based on the 2D video information. May be. Moreover, you may further have the drive part for 3rd 2D image | videos which match | combine the projection of both panel parts, without shifting predetermined amount, and drive both panel parts based on 2D image | video information.

  As described above, the stereoscopic video reproduction apparatus according to the present invention can be realized with a very simple hardware configuration. Further, by stopping either one of the two panel units or both light source units, the stereoscopic video playback device can be used as a device for playing back 2D video in addition to a device for playing back 3D video.

The best mode for carrying out the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the scope of the invention. In addition, the relationship between the following embodiment and a claim is as follows. The second embodiment will mainly describe claims 1, 2, 3 and the like. The third embodiment will mainly describe claim 4 and the like. The fourth embodiment will mainly describe claim 5 and the like. In the fifth embodiment, claim 6 will be mainly described. Although Embodiment 1 is not included in the scope of claims of the present invention, an invention related to the present invention will be described.

  (Embodiment 1: Overview)

  The present embodiment includes a first light source unit that includes a light source and a first polarizing filter that polarizes light from the light source, and a light source and a second polarizing filter that changes the polarization angle of the light from the light source. The second light source unit, the first panel unit that transmits the light from the first light source unit to project the first image, and the light from the second light source unit that transmits the light from the first light source unit and shifted by a predetermined amount. A stereoscopic video reproduction apparatus comprising: a second panel unit that projects two videos; and a 3D video drive unit that drives both panel units based on 3D video information for generating a first video and a second video. explain.

  (Embodiment 1: Configuration)

  FIG. 2 illustrates functional blocks of the stereoscopic video reproduction apparatus according to the present embodiment. The stereoscopic video reproduction apparatus (0200) includes a “first light source unit” (0201), a “second light source unit” (0202), a “first panel unit” (0203), and a “second panel unit” (0204). ) And “3D video drive unit” (0205).

  Note that each unit, which is a constituent element of the present invention described in detail below, is configured by hardware, software, or both hardware and software. For example, as an example for realizing these, when a computer is used, there are hardware constituted by a CPU, a bus, a memory, an interface, a peripheral device, and the like, and software that can be executed on the hardware. As software, the functions of each unit are realized by sequentially executing a program developed on the memory, and processing, storing, and outputting data on the memory and data input via the interface. (The same applies throughout the specification.)

  The “first light source unit” (0201) includes a light source and a first polarizing filter that polarizes light from the light source. The “second light source unit” (0202) includes a light source, a first polarizing filter for the light from the light source, and a second polarizing filter with a polarization angle changed. The “light source” in the first light source unit and the “light source” in the second light source unit may be separate light sources or one light source. For example, the stereoscopic video reproduction apparatus in FIG. 1 shows a case where each light source is a separate body (light source 0101a, light source 0101b). FIG. 3 shows a case where the light source of the first light source unit and the light source of the second light source unit are one light source. In FIG. 3, the first polarizing filter 0302, the second polarizing filter 0303, the first panel unit 0304, and the second panel unit 0305 are the same as those in FIG. 1, but the light source is only one of the light sources 0301. In this case, the first light source portion corresponds to a portion surrounded by a wavy line 0306 (light source 0301 and first polarizing filter 0302), and the second light source portion corresponds to a portion surrounded by a wavy line 0307 (light source 0301 and second polarizing filter 0303). ) Is applicable.

  Further, “the polarization angle of the first polarizing filter is changed” means that the polarization direction of the first polarizing filter is different from the polarization direction of the second polarizing filter. If the first video is a left-eye video of a stereoscopic video and the second video is a right-eye video of a stereoscopic video, the left-eye video is projected by light polarized by the first polarizing filter and is used for the right eye. The image is projected by the light polarized by the second polarization filter. In this case, the polarization direction of the first polarization filter and the polarization direction of the second polarization filter are orthogonal to each other. It is common.

  The “first panel unit” (0203) transmits the light from the first light source unit and projects the first image. Further, the “second panel unit” (0204) transmits the light from the second light source unit and projects the second image with a predetermined amount shifted from the first image. The “predetermined amount” corresponds to the amount (distance) of parallax, for example, when the first video and the second video are a left-eye video and a right-eye video, respectively. That is, in FIG. 1, the difference 0111 between the first video and the second video is the distance for the parallax. The first panel portion and the second panel portion are transmissive panels that transmit light from the light source. Specifically, the first panel portion and the second panel portion can be realized by, for example, a transmissive liquid crystal panel.

  The “3D video drive unit” (0205) drives both panel units based on 3D video information for generating the first video and the second video. The “both panel portions” refer to the first panel portion (0203) and the second panel portion (0204). “3D video information” is information “for generating the first video and the second video”, but specifically, it is assumed that the information is video information constituting the first video and the second video. . However, the 3D video information may include additional information related to the video information in addition to the video information. For example, if the first video and the second video are a left-eye video and a right-eye video of a stereoscopic video, it is necessary to project both at the same time according to the time stamp when both were shot. Corresponds to additional information about video information. Furthermore, control information may be included in the 3D video information. “Control information” is information for controlling the direction of the light source (optical axis direction), the position of the light source and the panel, and the like. By including such control information, for example, when the distance to the screen for projecting the first video and the second video is changed, the direction of the light source, the position of the light source, etc. according to the distance Can be changed. This point will be described in detail later. In addition, the first video and the second video included in the 3D video information may be transmitted separately through different communication lines, or a signal in which the first video and the second video are mixed (for example, a synthesized signal). The first video and the second video may be separated from the signal and output to both panel sections. “Driving both panels...” Means controlling to output the first video and the second video to both panels, respectively. Specifically, for example, the first video and the second video are received as 3D video information, the received first video is output to the first panel unit, and the received second video is output to the second panel unit. It corresponds to controlling. Further, the first video and the second video may be output at the same timing according to additional information such as a time stamp.

  (Embodiment 1: Effect)

According to the stereoscopic video reproduction apparatus according to the present embodiment, the first video and the second video are output to separate panels and projected by light having different polarization directions, so that the stereoscopic video can be displayed with a very simple hardware configuration. It is possible to play.
(Embodiment 2)

  (Embodiment 2: Overview)

  In the present embodiment, a stereoscopic video reproduction apparatus that further includes an optical path adjustment unit that adjusts an optical path part such as a light source and a panel unit, and a control unit that controls the optical path adjustment unit based on control information will be described. In addition, a stereoscopic video reproduction device further including an extraction unit that extracts control information from 3D video information, and a stereoscopic video reproduction device further including a reception unit that receives input of control information will be described.

  (Embodiment 2: Configuration)

  FIG. 4 illustrates functional blocks of the stereoscopic video reproduction device according to the present embodiment. The stereoscopic video reproduction device (0400) includes a “first light source unit” (0401), a “second light source unit” (0402), a “first panel unit” (0403), and a “second panel unit” (0404). ”,“ 3D video drive unit ”(0405),“ optical path adjustment unit ”(0406), and“ control unit ”(0407). Since the configuration other than the “optical path adjustment unit” (0406) and the “control unit” (0407) is as described above, the description thereof is omitted here.

  The “optical path adjustment unit” (0406) adjusts optical path parts such as a light source and a panel unit. “Light source” refers to light sources included in the first light source unit (0401) and the second light source unit (0402). When the light sources included in the first light source unit and the second light source unit are separate, when adjusting only the light source of the first light source unit, when adjusting only the light source of the second light source unit, the first light source unit In some cases, the light sources of both the light source unit and the second light source unit may be adjusted. Similarly, the “panel portion” refers to the first panel portion (0403) and the second panel portion (0404). When adjusting only the first panel portion, when adjusting only the second panel portion, There may be a case where both the one panel portion and the second panel portion are adjusted. In addition, the light source and the panel unit may adjust both the light source and the panel unit when adjusting only the light source, when adjusting only the panel unit. “Adjusting the optical path portion” means adjusting a mechanism related to determination of the optical path. For example, adjustment of the optical axis of the light source, adjustment of the orientation (tilt) of the panel unit, and the like are applicable.

  FIG. 5 shows a specific example of the adjustment method in the optical path adjustment unit. FIG. 5A shows a state before adjustment, and FIG. 5B shows a state after adjustment. First, in FIG. 5A, as described in FIG. 1, the light source 0501a of the first light source unit and the light source 0501b of the second light source unit are provided, and the light source 0501a polarized by the first polarizing filter. A first panel unit 0504 that transmits the first image and projects the first image, and a second panel unit 0505 that projects the second image by transmitting the light of the light source 0501b polarized by the second polarizing filter. Moreover, both light sources and both panel parts are located in parallel. Further, the first video 0509a and the second video 0510a projected on the screen are projected while being shifted by a parallax amount 0511. Here, the distance 0511a between the light sources and the screen is L1, and the light sources and the panel portions are separated by a distance 0512a. Here, for example, as shown in FIG. 5B, it is assumed that the distance 0511b between the two light sources and the screen has changed to L2. At this time, considering that the first image 0509b and the second image 0510b are projected with the same size as in FIG. 5A, the distance 0512b between both light sources and both panel portions is as shown in FIG. It must be adjusted to be longer than the distance 0512a in (a).

This point will be described in more detail with reference to FIG. FIG. 6 schematically shows a positional relationship among the light source 0501a, the first panel unit 0504, and the first video 0509 in FIG. The positions of the light sources 0501a in FIGS. 5A and 5B are positions indicated by points C and E in FIG. 6, respectively. 5A and 5B are indicated by panels 0604a and 0604b in FIG. 6, respectively. Further, the first videos 0509a and 0509b in FIG. 5 are indicated by a video 0609 in FIG. That is, the distances 0511a (L1) and 0511b (L2) between the two light sources and the screen shown in FIG. 5 correspond to the distance from point A to point C and the distance from point A to point E in FIG. . Further, the distances 0512a and 0512b between the light sources and the panel portions shown in FIG. 5 correspond to the distance m from the point B to the point C and the distance n from the point D to the point E in FIG. In FIG. 6, the width of the first video 0609 is represented by “2x”, and the width of the first panel portions (0604a, 0604b) is represented by “2y”. Further, an angle formed by a straight line connecting the light source position C (point C) to the end of the first video 0609 with respect to the vertical direction is α, and a straight line connecting the light source position E (point E) to the end of the first video 0609 is set. Let β be the angle made with respect to the vertical direction. From the above, the following expression is established.

(Formula 1)
tan α × L1 = x = tan β × L2
tan α × m = y = tan β × n

As a result, the following relationship is established between L1, L2, m, and n.

(Formula 2)
x: y
= Tan α × L1: tan α × m
= Tan β × L2: tan β × n
= L1: m
= L2: n

(Formula 3)
L1: L2 = m: n

  That is, if the distance between both light sources and the screen changes from L1 to L2, the optical path adjustment unit adjusts the distance between both light sources and both panel units from m to n at the same ratio as the ratio of L1 and L2. It will be.

  The “control unit” (0407) controls the optical path adjustment unit based on the control information. The “control information” is information for controlling the optical path adjustment unit as described with reference to FIGS. The information for controlling the optical path adjustment unit corresponds to information indicating the direction of the light source (optical axis direction), the position of the light source or the panel, and the like. Further, it may be information necessary for calculating these. That is, for example, information indicating the distance from the light source to the screen in the examples of FIGS. 5 and 6 may be used. FIG. 7 shows a specific example of the control information. For example, FIG. 7A shows the screen distance, and FIG. 7B shows the panel position. When the control information as shown in FIG. 7A is acquired, the control unit calculates the distance between both light sources and both panel units as described in FIGS. 5 and 6 and controls the optical path adjustment unit. When the control information as shown in FIG. 7B is acquired, the optical path adjustment unit is controlled so as to move the panel position 2 cm in the front direction (screen direction) based on this control information. Further, the control information may be acquired from another internal processing mechanism, or may be input from the outside. When acquired from another internal processing mechanism, for example, when predetermined control information is stored in advance in a semiconductor memory or the like in the stereoscopic video reproduction device and the control information is read out from the semiconductor memory or the like, A case may be considered in which the 3D video information is included in the 3D video information and is separated from the 3D video information and acquired by the control unit when the 3D video information is used in the 3D video drive unit (0405). It is done. The case where the control information is included in the 3D video information is assumed to be added to the video information constituting the first video and the second video as metadata, for example, and reproduction optimization information at the time of shooting Etc. In general, metadata is written with data indicating the angle of the optical axis of the light source, the tilt angle of the panel portion, and the like when the video is reproduced. Specifically, for example, the angle of convergence formed by the first video and the second video for adjusting the pop-out feeling of the stereoscopic video, the color correction value (RGB value, etc.) for increasing the sense of reality, etc. are written. Therefore, the stereoscopic video reproduction apparatus can reproduce the three-dimensional video reproduction device while controlling the optical path adjustment unit according to these values.

  Note that, as an example of optimal playback in the playback of stereoscopic (3D) video, the distance between the optical axis intersection of the camera that captures the first video and the camera that captures the second video, the position of the viewer and the screen during playback In some cases, the distance up to is matched. As a specific example of photographing, there is a case where a parallax (inter-camera distance) for determining the optical axis intersection distance and a convergence angle (viewing angle) are determined in advance for photographing. When the first video and the second video shot in this way are reproduced as described above, the viewer can enjoy an ideal stereoscopic (3D) video with a sense of reality.

  Further, in order to perform shooting that produces a three-dimensional (3D) effect stronger or weaker, the parallax (inter-camera distance) and the convergence angle (viewing angle) may be dynamically changed while shooting. However, since it may be difficult to change the settings of the two cameras like that at the time of stereoscopic (3D) shooting, in order to realize the same effect as if the intersection distance determined at the time of shooting is changed. When the playback device plays back, the difference between the first video and the second video can be adjusted during video editing. This adjustment is performed based on information held as metadata. In addition, adjustments are made during editing based on information (color information, lens triaxial tilt information) held in the metadata in order to absorb and correct the intrinsic characteristics of the cameras that capture the first video and the second video. In particular, it is possible to reproduce more accurate stereoscopic (3D) video. The metadata may be input by an instruction from a director or the like at the time of shooting, or may be input at the time of editing.

  Also, the case where the control information is input from the outside is, for example, the case where the control information is input by the user operating an input key or the like provided in the stereoscopic video reproduction device, or from the external device via the communication interface. Applicable when input.

  Further, the stereoscopic video reproduction apparatus may have a configuration as shown in FIG. That is, the stereoscopic video reproduction device (0900) includes a “first light source unit” (0901), a “second light source unit” (0902), a “first panel unit” (0903), and a “second panel unit”. (0904), “3D video drive unit” (0905), “optical path adjustment unit” (0906), “control unit” (0907), and “extraction unit” (0908). . Since the configuration other than the “extraction unit” (0908) is as described above, description thereof is omitted here.

  The “extraction unit” (0908) extracts control information from 3D video information. That is, it is a premise that control information is included in 3D video information. Specifically, for example, a case where control information is included as metadata or the like added to 3D video information is assumed. In this case, the control information is extracted after the 3D video drive unit (0905) acquires the 3D video information, and before the 3D video information is acquired by the 3D video drive unit (0905). In some cases, control information may be extracted from 3D video information.

  Further, the stereoscopic video reproduction apparatus may be configured as shown in FIG. That is, the stereoscopic video reproduction device (1900) includes a “first light source unit” (1901), a “second light source unit” (1902), a “first panel unit” (1903), and a “second panel unit”. (1904), “3D video drive unit” (1905), “optical path adjustment unit” (1906), “control unit” (1907), and “reception unit” (1908). . Further, the stereoscopic video reproduction apparatus may have an extraction unit. Since the configuration other than the “reception unit” (1908) is as described above, the description thereof is omitted here.

  The “reception unit” (1908) receives input of control information. “Input of control information” mainly refers to input from the outside. For example, this corresponds to a case where control information is input by a user operating an input key or the like provided in the stereoscopic video reproduction device.

  (Embodiment 2: Specific example of processing on hardware)

  FIG. 21 shows an example of the hardware configuration of the stereoscopic video reproduction device. Hereinafter, processing operations on hardware in the stereoscopic video reproduction apparatus will be described with reference to FIG. The 3D video information acquired from the communication interface (2102) is temporarily stored in the temporary memory (2103), and then the first panel unit (2105) and the second panel unit (2106) via the video memory (2108). Is output. The control information is stored in the temporary memory (2103) via the communication interface (2102) or input from the operation unit (2101). Thereafter, the positions of the first panel portion (2105), the second panel portion (2106), the light source (2107), and the like are adjusted by the drive system (2109) based on the control information. A program for executing these processes is stored in a nonvolatile storage device (2104) or the like, and is loaded into the main memory and executed when the program is executed. Since this processing operation is an example, there may be other operation methods.

  (Embodiment 2: Processing flow)

  FIG. 8 is a flowchart showing a processing flow when the stereoscopic video reproduction apparatus has the configuration illustrated in FIG. First, control information is acquired (S0801). Next, the optical path adjustment unit is controlled based on the control information (S0802). In addition to the processing shown in FIG. 8, the stereoscopic video reproduction apparatus executes processing for acquiring 3D video information and outputting the first video and the second video to the first panel unit and the second panel unit, respectively.

  FIG. 10 is a flowchart showing a processing flow when the stereoscopic video reproduction apparatus has the configuration illustrated in FIG. First, control information is extracted from 3D video information (S1001). Next, control information is acquired (S1002). Next, the optical path adjustment unit is controlled based on the control information (S1003).

  FIG. 20 is a flowchart showing a processing flow when the stereoscopic video reproduction apparatus has the configuration illustrated in FIG. First, input of control information is accepted (S2001). Next, control information is acquired (S2002). Next, the optical path adjustment unit is controlled based on the control information (S2003).

  (Embodiment 2: Effect)

According to the stereoscopic video reproduction device according to the present embodiment, it is possible to adjust the optical path as appropriate, so even if the distance between the stereoscopic video reproduction device and the screen is changed, for example, the situation It is possible to project a stereoscopic image appropriately according to the situation.
(Embodiment 3)

  (Embodiment 3: Overview)

  In the present embodiment, a stereoscopic video reproduction apparatus that further includes a first 2D video drive unit that stops one of both panel units and drives the other panel unit based on 2D video information will be described.

  (Embodiment 3: Configuration)

  FIG. 11 illustrates functional blocks of the stereoscopic video reproduction device according to this embodiment. The stereoscopic video reproduction apparatus (1100) includes a “first light source unit” (1101), a “second light source unit” (1102), a “first panel unit” (1103), and a “second panel unit” (1104). ”,“ 3D video drive unit ”(1105), and“ first 2D video drive unit ”(1106). Further, the stereoscopic video reproduction apparatus may further include an optical path adjustment unit and a control unit, may further include an extraction unit, and may further include a reception unit. Since the configuration other than the “first 2D video drive unit” (1106) is as described above, the description thereof is omitted here.

  The “first 2D video drive unit” (1106) stops either one of the two panel units and drives the other panel unit based on the 2D video information. “Stop either one of the two panel parts” means that one of the panel parts does not output an image (first image or second image). Specifically, the power of the panel unit is turned off. There may be a case where the power is turned off, a case where the power of the panel unit remains on but no video is output, and the like.

  FIG. 12 shows a specific example of the driving method by the first 2D video driving unit. FIG. 12 shows a case where the first panel unit 1204 outputs the first video and the second panel unit 1205 stops. Note that FIG. 12 shows a case where the light source of the first light source unit and the light source of the second light source unit are one light source 1201, but in such a case, if the light of the light source 1201 is also halved, power can be saved. It is suitable. As described above, the first image 1209 is projected on the screen 1208 by transmitting the light from the first light source unit 1206 by the first panel unit 1204. That is, since the second image is not projected on the screen when the second panel unit 1205 is not driven, 2D display can be performed as a result.

  The “2D video information” mainly corresponds to video information constituting the first video or the second video, but may include information other than the video information. For example, information that clearly indicates which panel unit is to be driven may be included. FIG. 13 shows a specific example of 2D video information. In the example of FIG. 13, the power supply of the left panel (first panel section) is turned on, the power supply of the right panel (second panel section) is turned off, and the power sources of both light sources are turned on. The first 2D video drive unit obtains such 2D video information and controls both panel units to perform 2D display.

  (Embodiment 3: Flow of processing)

  FIG. 22 is a flowchart showing a process flow in the stereoscopic video reproduction apparatus according to the present embodiment. First, 2D video information is acquired (S2201). Next, it is determined whether to drive the first panel unit based on the 2D video information (S2202). If it is determined that the first panel unit is to be driven, the first panel unit is driven and the second panel unit is stopped (S2203). When it is determined that the first panel unit is not driven, the first panel unit is stopped and the second panel unit is driven (S2204).

  (Embodiment 3: Effect)

According to the stereoscopic video reproduction apparatus according to the present embodiment, the stereoscopic video reproduction apparatus can be used as a 2D video reproduction apparatus by stopping only one of the two panel units.
(Embodiment 4)

  (Embodiment 4: Overview)

  The present embodiment further includes a second 2D video drive unit that stops one of the light source units and drives the panel unit to transmit the light of the other light source unit based on the 2D video information. A stereoscopic video playback apparatus having the above will be described.

  (Embodiment 4: Configuration)

  FIG. 14 illustrates functional blocks of the stereoscopic video reproduction device according to this embodiment. The stereoscopic video reproduction apparatus (1400) includes a “first light source unit” (1401), a “second light source unit” (1402), a “first panel unit” (1403), and a “second panel unit” (1404). ”,“ 3D video drive unit ”(1405), and“ second 2D video drive unit ”(1406). Further, the stereoscopic video reproduction apparatus may further include an optical path adjustment unit and a control unit, may further include an extraction unit, and may further include a reception unit. Further, the stereoscopic video reproduction device may have a first 2D video drive unit. Since the configuration other than the “second 2D video drive unit” (1406) is as described above, a description thereof is omitted here.

  The “second 2D video drive unit” (1406) stops either one of the light source units and drives the panel unit to transmit light from the other light source unit based on the 2D video information. . “Stop either one of the two light sources” means that the first light source or the second light source is not operated, and more specifically, the light source or the second light source included in the first light source. This means that the light source included in the unit is not operated. Specifically, not operating corresponds to turning off the power.

  FIG. 15 shows a specific example of a driving method by the second 2D video driving unit. In FIG. 15, the first panel unit 1504 and the second panel unit 1505 output the first video and the second video, respectively, the light source 1501a of the first light source unit 1506 is operated, and the light source 1501b of the second light source unit 1507 is operated. Indicates the case of stopping. That is, the second image is output to the second panel unit 1505, but the second image is not projected onto the screen 1508 because the light source 1501b of the second light source unit 1507 is turned off. Therefore, only the first image 1509 by the first panel unit 1504 is projected on the screen 1508, and 2D display can be performed.

  (Embodiment 4: Flow of processing)

  FIG. 18 is a flowchart showing the flow of processing in the stereoscopic video reproduction apparatus according to this embodiment. First, 2D video information is acquired (S1801). Next, it is determined whether to drive the first light source unit based on the 2D video information (S1802). If the determination here is that the first light source unit is to be driven, the first light source unit is driven and the second light source unit is stopped (S1803). If it is determined that the first light source unit is not driven, the first light source unit is stopped and the second light source unit is driven (S1804).

  (Embodiment 4: Effect)

According to the stereoscopic video reproduction apparatus according to the present embodiment, the stereoscopic video reproduction apparatus can be used as a 2D video reproduction apparatus by stopping only one of the two light source units.
(Embodiment 5)

  (Embodiment 5: Overview)

  In the present embodiment, a stereoscopic video reproduction apparatus that further includes a third 2D video drive unit that drives the both panel units based on 2D video information by matching the projections of both panel units without shifting a predetermined amount.

  (Embodiment 5: Configuration)

  FIG. 16 illustrates functional blocks of the stereoscopic video reproduction device according to this embodiment. The stereoscopic video reproduction device (1600) includes a “first light source unit” (1601), a “second light source unit” (1602), a “first panel unit” (1603), and a “second panel unit” (1604). ”,“ 3D video drive unit ”(1605), and“ third 2D video drive unit ”(1606). Further, the stereoscopic video reproduction apparatus may further include an optical path adjustment unit and a control unit, may further include an extraction unit, and may further include a reception unit. Further, the stereoscopic video reproduction device may have a first 2D video drive unit. Further, the stereoscopic video reproduction apparatus may have a second 2D video drive unit. Since the configuration other than the “third 2D video drive unit” (1606) is as described above, a description thereof is omitted here.

  The “third 2D video drive unit” (1606) drives both panel units based on the 2D video information by matching the projections of both panel units without shifting a predetermined amount. FIG. 17 shows a specific example of the driving method by the third 2D video driving unit. FIG. 17 shows a case where the orientation of the first panel portion 1704 and the second panel portion 1705 is directed toward the center as a method of “matching the projections of both panel portions without shifting by a predetermined amount”. As a result, the first image 1709 projected by the first panel unit 1704 and the second image 1710 projected by the second panel unit 1705 can be projected on the screen 1708 so that their positions coincide. In addition, when the first video and the second video are a left-eye video and a right-eye video, respectively, and a more realistic stereoscopic video is displayed, the left-eye video and the right-eye video are not the same video but a camera. The angle is slightly different. However, there are cases where the same video is used as the left-eye video and the right-eye video, and they are projected by shifting them by the amount of parallax. In such cases, the left-eye video and the right-eye video are configured. If the images are matched without shifting by a predetermined amount (for parallax), the image can be displayed in the same way as a normal image. In other words, the stereoscopic video playback device can be used as a 3D video playback device by shifting the projections of both panel portions by a predetermined amount, and the stereoscopic video playback device can be made 2D by matching the projections of both panel portions without shifting the predetermined amount. It can also be used as a video playback device.

  (Embodiment 5: effect)

  According to the stereoscopic video reproduction apparatus according to the present embodiment, the stereoscopic video reproduction apparatus can be used as a 2D video reproduction apparatus by matching the projections of both panel portions without shifting a predetermined amount.

Overview of the stereoscopic video playback device of the present invention Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 1 An example diagram when the light source of the first light source unit and the light source of the second light source unit are one light source Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 2 An example of the adjustment method in the optical path adjustment unit The figure explaining the adjustment method in an optical path adjustment part concretely Example of control information FIG. 9 is a flowchart showing a flow of processing of the stereoscopic video reproduction apparatus according to the second embodiment. Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 2 FIG. 9 is a flowchart showing a flow of processing of the stereoscopic video reproduction apparatus according to the second embodiment. Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 3 Example of drive method by first 2D video drive unit An example of 2D video information Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 4 Example of driving method by second 2D video driving unit Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 5 Example of driving method by third 2D video driving unit FIG. 9 is a flowchart showing a flow of processing of the stereoscopic video reproduction apparatus according to the fourth embodiment. Functional block diagram of a stereoscopic video reproduction apparatus according to Embodiment 2 FIG. 9 is a flowchart showing a flow of processing of the stereoscopic video reproduction apparatus according to the second embodiment. Example of hardware configuration of stereoscopic video playback device FIG. 9 is a flowchart showing a flow of processing of the stereoscopic video reproduction apparatus according to the third embodiment.

Explanation of symbols

0101a Light source 0101b Light source 0102 First polarizing filter 0103 Second polarizing filter 0104 First panel unit 0105 Second panel unit 0106 First light source unit 0107 Second light source unit 0108 Screen 0109 First video 0110 Second video

Claims (6)

A first light source unit comprising a light source and a first polarizing filter that polarizes light from the light source;
A second light source unit comprising a light source and light from the light source, the first polarizing filter and a second polarizing filter having a changed polarization angle;
A first panel unit that transmits light from the first light source unit and projects a first image on a screen ;
The light from the second light source part is transmitted, and the light emitted from the second panel part is shifted from the first image by a predetermined amount so that the light and the light emitted from the first panel part are changed in polarization angle. A second panel unit for projecting the second video onto the screen ,
A 3D video drive unit for driving both panel units based on 3D video information for generating a first video and a second video;
An optical path adjustment unit for adjusting an optical path part including a light source and a panel unit;
Based on the control information, according to the distance from both light sources to the screen, a control unit that controls the optical path adjustment unit to adjust the distance between both light sources and both panels;
3D video playback device. The stereoscopic video reproduction apparatus according to claim 1 , further comprising an extraction unit that extracts control information from the 3D video information. Stereoscopic image reproducing apparatus according to claim 1 or 2 further comprising a receiving section that receives an input of control information. The solid according to any one of claims 1 to 3 , further comprising a first 2D video drive unit that stops one of the two panel units and drives the other panel unit based on the 2D video information. Video playback device. The apparatus further comprises a second 2D video drive unit that stops one of the light source units and drives the panel unit to transmit the light of the other light source unit based on the 2D video information. 4. The stereoscopic video reproduction apparatus according to claim 4. The stereoscopic video reproduction according to any one of claims 1 to 5 , further comprising a third 2D video drive unit that matches the projections of both panel units without shifting a predetermined amount and drives both panel units based on 2D video information. apparatus.

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