JP2000305481A - Projection type display device and information storage media - Google Patents

Projection type display device and information storage media

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Publication number
JP2000305481A
JP2000305481A JP11113630A JP11363099A JP2000305481A JP 2000305481 A JP2000305481 A JP 2000305481A JP 11113630 A JP11113630 A JP 11113630A JP 11363099 A JP11363099 A JP 11363099A JP 2000305481 A JP2000305481 A JP 2000305481A
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person
image light
region
information
position
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JP3630015B2 (en
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Kazunori Hiramatsu
和憲 平松
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Seiko Epson Corp
セイコーエプソン株式会社
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Abstract

PROBLEM TO BE SOLVED: To provide a projection type display device having an antidazzle function to decrease an incident amount of an image light to eyes of a person positioning in the display area by controlling brightness of the image light at an area where the person is located in the display area.
SOLUTION: An image light is projected in a display area 3 on a screen 4 from a projector 1, a projection type display device, arranged in the front. A person 5 being a presenter exists in this display area 3 to indicate the predetermined position and executes the presentation looking the audience 7. The projector 1 is provided with a CCD camera being an image pick-up means 2 and a position of the person on a display position is detected. According to the detected result of the position of the person, an image light of the image brightness adjusting area 6 is set to a black level. Consequently, an incident amount to eyes of the person 5 of image light projected from the projector 1 is reduced and the person 5 does not feel dazzle by the image light.
COPYRIGHT: (C)2000,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、液晶プロジェクタ等の投写型表示装置及び情報記憶媒体に関する。 The present invention relates to relates to a projection display device and an information storage medium such as a liquid crystal projector.

【0002】 [0002]

【背景技術及び発明が解決しようとする課題】近年、パーソナルコンピューターと液晶プロジェクタ等の投写型表示装置の普及により、電子映像情報を拡大投影する形態でのプレゼンテーションが広く行われている。 BACKGROUND and SUMMARY OF THE INVENTION In recent years, the spread of the projection display device such as a personal computer and a liquid crystal projector, a presentation in the form of magnifying and projecting electrons video information is widely used.

【0003】プレゼンテーションにおいては、プレゼンターがディスプレイ領域の一部を直接位置指示することで、表示内容の要点を指し示すことができ、より効果的で効率的なプレゼンテーションが実現する。 [0003] In the presentation, the presenter by position indicating directly a part of the display region, it can point to the point of the display contents, to achieve a more effective and efficient presentations. したがって、時にはディスプレイ領域内にプレゼンターが位置し、聴衆を見ながらプレゼンテーションを行うケースがある。 Therefore, sometimes presenter located display area, there is a case where a presentation while viewing the audience. この時、投写型表示装置を使用している場合、プレゼンターの位置から見て、投写型表示装置と観衆は同じ方向であるため、プレゼンターの目には、投写型表示装置が出力する映像光が直接入射する。 At this time, if you are using a projection display apparatus, as viewed from the position of the presenter, for projection-type display apparatus and the crowd in the same direction, in the eyes of the presenter, the image light projection display apparatus outputs the directly incident.

【0004】明るい環境においても十分な投写映像の明るさが得られる様、投写型表示装置の投写光量は年々向上している。 [0004] As the brightness of sufficient projected image can be obtained even in a bright environment, the projection amount of the projection display device is improved year by year. 従って、プレゼンターの目に投写型表示装置の映像光が直接入射した場合、プレゼンターは眩しさと不快感を感ずるという問題がある。 Therefore, if the image light projection display device to the eye of the presenter is incident directly presenter has a problem that feels glare and discomfort.

【0005】またこの時、プレゼンターが眩しさの為に目を細めてしまうことで顔の表情が変化して、聴衆のプレゼンターに対する印象に悪影響を及ぼす可能性もある。 [0005] Further, at this time, it changes the expression of the face that would squint for the presenter glare, there is also adversely affect the impression to the audience of the presenters.

【0006】本発明は、このような課題に鑑みて成されたものであり、その目的は、投写型表示装置のディスプレイ領域における、人物が位置する領域の映像光の明るさを制御する、プレゼンター防眩対策機能を有する投写型表示装置、および投写型表示装置を有するシステムの情報記憶媒体を提供することにある。 [0006] The present invention has been made in view of such problems, and its object is in the display area of ​​the projection display device, and controls the brightness of the image light in the region where the person is located, presenter antiglare protection function projection display device having, and to provide an information storage medium of a system having a projection display device.

【0007】 [0007]

【課題を解決するための手段】前記目的を達成するために、第1の発明は、ディスプレイ領域に映像光を投写する映像光投写手段と、前記ディスプレイ領域を撮像する撮像手段と、前記撮像手段によって得られた撮像情報から前記ディスプレイ領域に位置する人物の位置情報を検出する人物位置検出手段と、前記人物の位置情報から前記映像光の輝度調整領域を決定する輝度調整領域決定手段と、前記輝度調整領域の前記映像光の輝度を調整する映像光輝度調整手段と、を有することを特徴とする投写型表示装置である。 To achieve SUMMARY OF for the] said object, a first invention, a video light projecting means for projecting the image light to the display region, an imaging unit for imaging the display area, the image pickup means a person position detection means for detecting position information of a person from the image information obtained positioned in the display area by the luminance adjustment region determining means for determining a luminance adjustment region of the image light from the positional information of the person, the and image light intensity adjusting means for adjusting the luminance of the image light intensity adjustment region, a projection display device characterized by having a.

【0008】このため、ディスプレイ領域に位置する人物の位置情報から、映像光の制御を行うことで、ディスプレイ領域の人物、つまりプレゼンターのための防眩対策が可能になる。 [0008] Therefore, the position information of a person positioned in the display region, by performing the control of the image light, the person of the display area, i.e. allowing antiglare measures for presenters.

【0009】第2の発明は、第1の発明において、前記輝度調整領域決定手段は、前記人物位置検出手段が検出する人物位置と重複する領域を前記映像光の輝度調整範囲とすることを特徴とする投写型表示装置である。 [0009] The second invention is the first invention, the luminance adjustment region determining means, wherein a region where the person position detection means overlaps with person position detecting that the brightness adjustment range of the image light a projection display device according to.

【0010】このため、人物位置と重複する領域の映像光の輝度制御を行うことで、人物の目の位置の映像光の輝度制御を確実に行うことができる。 [0010] Thus, by performing the brightness control of the image light region overlapping the person position, it is possible to reliably brightness control of the image light of the position of the eyes of a person. また人物の目の位置のみを検出する場合に比べ、人物そのものの位置は領域が大きく、容易に確実に検出でき、効果的な防眩対策が可能である。 Also compared with the case of detecting only the positions of the eyes of a person, the position of the person itself region is large, easily and reliably be detected, it is possible to effectively antiglare measures. なお、人物位置に投写される映像光は、 Incidentally, image light is projected on the person position,
映像を見る観衆にとっては、人物の存在によって映像が見えない領域であり、人物位置全体の映像光の輝度制御を行うことは、表示機能に大きな影響を与えるものではない。 For spectators watching video is an area where the image is not visible by the presence of a person, it does not significantly affect the display function of performing brightness control of the image light of the whole person position.

【0011】第3の発明は、第1の発明において、前記撮像手段は、前記ディスプレイ領域とその周辺領域を撮像範囲とする事を特徴とする投写型表示装置である。 [0011] A third invention according to the first invention, the imaging means is a projection display device, characterized in that for the display region and the peripheral region thereof and imaging range.

【0012】このため、ディスプレイ領域の周辺でも、 [0012] For this reason, even at the periphery of the display area,
人物位置検出が可能になる。 The person position detection is possible. ディスプレイ領域で人物検出を行うには、ディスプレイ像と人物像の分離を行う必要があるが、ディスプレイ領域の周辺はその必要が無く、容易に人物像の検出が可能になる。 To make a person detected in the display area, it is necessary to perform the separation of the display image and the figures, the periphery of the display area is not necessary that allows easy person image detection.

【0013】第4の発明は、第3の発明において、前記人物位置検出手段は、前記撮像手段が撮像したディスプレイ領域下部の撮像情報を元に、ディスプレイ領域における人物位置の水平方向範囲の検出を行ない、前記輝度調整範囲決定手段は、前記人物位置の水平方向範囲の前記ディスプレイ領域を輝度調整範囲とすることを特徴とする投写型表示装置である。 [0013] A fourth invention, in the third invention, the person position detection means, based on imaging information of the lower display area in which the imaging means has captured the detection of horizontal range of the person position in the display region no rows, the brightness adjustment range determining means is a projection display apparatus characterized by a brightness adjustment range the display area in the horizontal direction range of the person position.

【0014】このため、ディスプレイ領域下部という限定された領域の撮像情報から、容易に人物像を検出することができる。 [0014] Therefore, from the imaging information of the area which is limited in that the display region lower, it is possible to easily detect the human image. ディスプレイ領域下部で位置検出が可能な理由は、プレゼンターである人物は通常直立姿勢であるので、ディスプレイ領域に目つまり顔が存在する場合は、ディスプレイ領域下部には胴体もしくは脚部が存在する。 Why can position detected by the display region lower, since a person is presenter is usual upright position, if the clogging face present in the display area, in the lower display region exists torso or legs. それを検出することで、人物のディスプレイ領域の水平方向位置が検出できるためである。 By detecting it is because it detected horizontal position of the display area of ​​the person. ディスプレイ領域の検出した水平方向位置全体に対して、映像光の輝度制御を行うことで、プレゼンターが直立している場合、目の位置の映像光も輝度制御できる。 For the entire detected horizontal position of the display region, by performing the brightness control of the image light, when the presenter is upright, image light positions of the eyes can also brightness control.

【0015】第5の発明は、第1の発明において、前記映像光輝度調整手段は、前記輝度調整領域の前記映像光の輝度を黒レベルとすることを特徴とする投写型表示装置である。 [0015] The fifth invention is the first invention, the image light intensity adjusting unit is a projection display device, characterized in that the luminance of the image light of the luminance adjustment region and the black level.

【0016】このため、プレゼンターの目に直接入射する映像光を大幅に低減することができる。 [0016] Therefore, it is possible to greatly reduce the image light directly entering the eyes of the presenter. なお、人物位置に投写される映像光は、映像を見る観衆にとっては、 Incidentally, image light is projected on the person position, for the audience to see the image,
人物の存在によって映像が見えない領域であり、人物位置全体の映像光を黒にしても、表示機能に大きな影響を与えることもない。 An area where the image is not visible by the presence of a person, even if the image light of the whole person position black, nor a significant impact on the display function.

【0017】第6の発明は、投写型表示装置のディスプレイ領域の撮像情報に基づき、前記ディスプレイ領域に位置する人物の位置情報を検出するための人物位置検出制御情報と、前記人物の位置情報から前記投写型表示装置が投写する映像光の輝度調整領域を決定するための輝度調整領域決定制御情報と、前記輝度調整領域の前記映像光の輝度を調整するための映像光輝度調整制御情報と、を記憶したコンピュータ読取り可能な情報記憶媒体である。 [0017] A sixth invention is based on the sensing information of a display area of ​​the projection display device, and the person position detection control information for detecting the position information of the person located in the display area, the position information of the person and luminance adjustment region determined control information for determining the brightness adjustment region of the image light in which the projection display device for projecting an image light brightness adjustment control information for adjusting the intensity of the image light of said luminance adjustment region, a computer-readable information storage medium storing.

【0018】第7の発明は、第6の発明において、前記輝度調整領域決定制御情報は、前記ディスプレイ領域に位置する人物の位置に重複する領域を前記映像光の輝度制御範囲とする制御情報を含むことを特徴とする情報記憶媒体。 [0018] A seventh aspect of the sixth invention, the brightness adjustment region determined control information, the control information to an area that overlaps the position of the person positioned in the display region and brightness control range of the image light information storage medium, which comprises.

【0019】第8の発明は、第6の発明において、前記人物位置検出制御情報は、投写型表示装置のディスプレイ領域下部の画像情報を元に、ディスプレイ領域における人物位置の水平方向範囲の検出を行ない、前記輝度調整範囲決定制御情報は、前記人物位置の水平方向範囲の前記ディスプレイ領域を輝度調整範囲とする制御情報を含むことを特徴とする情報記憶媒体である。 [0019] eighth aspect, in the sixth invention, the person position detection control information, based on the image information of the lower display area of ​​the projection display device, the detection of the horizontal range of the person position in the display region deeds, the brightness adjustment range determined control information is information storage medium characterized by including control information for the luminance adjustment range of the display area in the horizontal direction range of the person position.

【0020】第9の発明は、第6の発明において、前記映像光輝度調整制御情報は、前記輝度調整領域の前記映像光の輝度を黒レベルとする制御情報を含むことを特徴とする情報記憶媒体である。 The ninth invention, in the sixth invention, the image light intensity adjustment control information, information storage, characterized in that it includes control information for the luminance of the image light of the luminance adjustment region and the black level it is a medium.

【0021】 [0021]

【発明の実施の形態】以下、本発明の実施形態を図面に基づいて説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be explained based on the embodiment of the present invention with reference to the drawings.

【0022】(1)全体の説明 図1は、本発明が適用された投写型表示装置の使用形態の概略説明図である。 [0022] (1) Overall Description Figure 1 is a schematic illustration of usage of the projection display device to which the present invention is applied.

【0023】スクリーン4上には、正面に設けられた投写型表示装置であるプロジェクター1から、ディスプレイ領域3に映像光が投写されている。 [0023] on the screen 4, the projector 1 is a projection display device provided in front of the image light is projected on the display area 3. 図1ではプレゼンターである人物5は、所定の位置を指し示めすために、 People 5 is a presenter in FIG. 1, for female shows points to a predetermined position,
このディスプレイ領域3内に存在し、観衆7を見ながらプレゼンテーションを行っている様子が描かれている。 This exists in the display area 3, it is drawn state that is doing a presentation while looking at the crowd 7.
プロジェクター1には、撮像手段であるCCDカメラ2 The projector 1, CCD camera 2 is an imaging device
を設け、ディスプレイ領域上の人物位置を検出する。 The provided to detect the person position on the display area. そして、人物位置の検出結果に従い、映像光輝度調整領域6の映像光を黒レベルにする。 Then, in accordance with the detection result of the person's position, to the image light of the image light brightness adjustment area 6 to the black level. よって、プロジェクター1から投写される映像光の、人物5の目に対する入射量が低減され、人物5は、映像光による眩しさを感じない。 Therefore, the image light projected from the projector 1, the amount of incident is reduced to the eye of the person 5, the person 5 will not feel the glare by the video light.

【0024】ここで、映像光輝度調整領域6には本来表示されるべきディスプレイ情報が表示されなくなるが、 [0024] Here, although the display information to be originally displayed is not displayed on the image light brightness adjustment area 6,
人物5はスクリーン4で映像光が反射するのを妨げているので、たとえ映像光の輝度を調整しなかったとしても、人物5が位置する箇所では正常な映像を得ることができないため、映像光輝度調整領域6がほぼ人物5の位置と一致する場合、映像光輝度調整6による、表示情報の低下は少ない。 Since the person 5 is prevented from reflection image light on the screen 4, for even if not adjust the brightness of the image light, is at a point located a person 5 can not be obtained normal image, the image light If the brightness adjustment area 6 coincides substantially position of a person 5, according to the image light brightness adjustment 6, deterioration of the display information is small.

【0025】図2は、本実施例の投写型表示装置システムの機能ブロック図を示す。 [0025] Figure 2 shows a functional block diagram of a projection display system of the present embodiment.

【0026】投写型表示装置11は、映像光投写手段1 The projection display device 11, image light projecting means 1
3の他に、撮像手段14と処理部12を有する。 In addition to 3, having an imaging unit 14 and the processing unit 12.

【0027】撮像手段14は、光を電気信号に変換する手段であり、CCDカメラを使用する。 The imaging means 14 is a means for converting light into an electric signal, using a CCD camera. その撮像領域は、映像光投写手段13のディスプレイ領域を含む領域である。 Its imaging region is a region including the display region of the image light projection means 13.

【0028】処理部12は映像光の輝度制御を行う部分で、機能別に、人物位置検出部15、輝度調整領域決定部16及び映像光輝度調整部17より成る。 The processing unit 12 is a part for brightness control of the image light, by function, consisting of the person position detector 15, the brightness adjustment region determining unit 16 and the image light intensity adjustment unit 17. 人物位置検出部15は、撮像手段14で得られる撮像情報から、ディスプレイ領域上の人物の位置を検出する処理を行う。 The person position detector 15, the imaging information obtained by the imaging unit 14 performs a process of detecting a position of the person on the display area.
輝度調整領域決定部16は、人物位置検出部15で求めた人物の位置情報を元に、ディスプレイ領域のどの領域の輝度を低く調整するか、その領域を決定する処理を行う。 Brightness adjustment region determining section 16, based on position information of a person determined by the person position detector 15, either adjust lower the luminance of any area of ​​the display area, it performs a process of determining the area. 映像光輝度調整部17では、本来の表示イメージを示す映像入力18に対して、輝度調整領域決定部16で求めた輝度調整領域の輝度を、黒レベルなどにして、輝度を低減する処理を行う。 Performing the image light intensity adjustment unit 17, the video input 18 which indicates the original display image, the luminance of the luminance adjustment region determined by the luminance adjustment region determining section 16, and the like black level, a process of reducing the luminance .

【0029】なお、撮像手段14、及び処理部12は、 [0029] The imaging unit 14 and the processing unit 12, the
映像光投写手段13と共に、投写型表示装置11の内部に、必ずしも一体化されて存在する必要はない。 Together with the video light projecting means 13, the interior of the projection display device 11 need not necessarily be present are integrated. 例えば、処理部12のみ外部に存在してもよい。 For example, only the processing unit 12 may be present outside. また、処理部12の一部の機能、例えば映像光輝度調整部17のみ投写型表示装置11内に存在し、それ以外が外部に存在してもよい。 Also, some of the functions of the processing unit 12, for example, present in the projection display apparatus 11 only the image light intensity adjustment unit 17 and the rest may be present outside. また、処理部12は、専用のハードウェアでもコンピューター上でも、機能を実現できる。 The processing unit 12 is also on a computer in dedicated hardware, it can realize the function.

【0030】(2)防眩処理内容の説明 ディスプレイ領域上の人物位置の映像光輝度を低減する一連の処理である、防眩処理の一実施例について説明する。 [0030] (2) a series of processes for reducing image light intensity of a person position of explanation display region of the anti-glare processing contents will be described an embodiment of the anti-glare treatment. この防眩処理は、処理部12で行う。 The anti-glare treatment is performed by the processing unit 12.

【0031】図3は、本実施例の防眩処理全体を示すフローチャートであり、図4は、本実施例の防眩処理の動作を示すタイミングチャートである。 [0031] FIG. 3 is a flowchart of an overall anti-glare process of this embodiment, FIG. 4 is a timing chart showing the operation of the anti-glare process of this embodiment. 図3と図4を用いて説明を行う。 It will be described with reference to FIGS. 3 and 4.

【0032】まず、ステップS01で、撮像手段で得られる撮像情報から、ディスプレイ領域周辺下部領域20 [0032] First, in step S01, from the imaging information obtained by the imaging means, display region surrounding the lower region 20
の撮像情報を抽出する。 To extract the imaging information. つまり、全撮像領域22の撮像情報の中から人物位置検出をする領域の情報だけを抽出する。 That is, to extract only the information of the region of the person position detection from the imaging information of all the imaging region 22. ディスプレイ領域周辺下部領域20の撮像情報から人物位置の水平方向位置の検出を行う目的は、ディスプレイ領域で人物検出を行う場合には、ディスプレイ像と人物像の分離を行う必要があるが、ディスプレイ領域の周辺ではその必要が無く、容易に人物像の検出が可能であるからである。 The purpose of detecting the horizontal position of the person position from the imaging information of the display region surrounding the lower region 20, in the case of a person detected in the display area, it is necessary to perform the separation of the display image and the figures, the display region of around not necessary that, because it is possible to easily person image detection. また、ディスプレイ領域周辺下部領域20の撮像情報から人物位置の水平方向位置の検出を行うことが可能である理由は、プレゼンターである人物は直立しているので、ディスプレイ領域に目つまり顔が存在する場合は、ディスプレイ領域周辺下部には胴体もしくは脚部が存在する。 The reason why it is possible to detect the horizontal position of the person position from the imaging information of the display region surrounding the lower region 20 are the presenter person is upright, there is clogging face display area If, on the lower peripheral display region exists torso or legs. したがってそれを検出することで、人物のディスプレイ領域の水平方向位置が検出できるからである。 Thus by detecting it, the horizontal position of the person in the display region is because it detected. なお、人物の水平方向位置のみを検出する場合においても、ディスプレイ領域の検出した水平方向位置全体に対して映像光の輝度制御を行うことで、プレゼンターが直立している場合、目の位置の映像光も輝度制御が可能であり、プレゼンターの防眩という目的が達成できる。 Also in the case of detecting only the horizontal position of the person, by performing the brightness control of the image light for the entire detected horizontal position of the display area, if the presenter is standing upright, the image of the eye position light is also possible brightness control, object can be achieved that the presenter of the antiglare.

【0033】撮像信号31は、ステップS01の処理によって得た、図4のディスプレイ領域周辺下部領域20 The imaging signal 31 was obtained by the processing in step S01, the display region surrounding the lower region 20 of FIG. 4
の撮像情報の1水平ライン分を示す。 It shows a one horizontal line of imaging information. 人物5が存在する部分の、撮像信号31の輝度レベルは人物5が存在しない部分よりも低い。 Portion person 5 is present, the luminance level of the image signal 31 is lower than the portion having no person 5. これは、ディスプレイ周辺領域がスクリーンである場合、人物5はスクリーンよりも光を反射しないため、暗くなるためである。 This is because, when the display peripheral region is a screen, the person 5 because it does not reflect light than the screen, because the dark.

【0034】次に、ステップS02で、ステップS01 [0034] Next, in step S02, step S01
で得た撮像情報を2値化して人物位置情報を生成する。 In by binarizing the captured information obtained to produce a person position information.
つまり、撮像信号31を2値化スレッショルド32によって2値化して、人物の水平方向位置を示す人物位置信号33を得る。 In other words, by binarizing the image signal 31 by the binarization threshold 32 to obtain the person position signal 33 indicating the horizontal position of the person.

【0035】なお、ステップS01とS02の処理は、 [0035] It should be noted that the process of step S01 and S02 is,
図2の人物位置検出部15で行う処理に対応する。 It corresponds to the processing performed by the person position detection unit 15 of FIG.

【0036】次に、ステップS03で、人物位置検出情報から映像光の輝度調整領域情報を生成する。 Next, in step S03, and generates a luminance adjustment region information of the image light from the person position detection information. 具体的には、ステップS02で得た、人物の水平方向位置情報を示す人物位置信号33に対して、パルス幅つまり位置情報を広げた、輝度調整領域信号34を生成する。 Specifically, it obtained in step S02, with respect to a person position signal 33 indicating the horizontal position information of the person, bringing the pulse width, i.e. the position information to generate a luminance adjustment region signal 34. 元々の人物位置領域よりも、輝度調整領域を広くする理由は、 Than the original person position region, the reason to increase the luminance adjustment region,
人物が完全に直立していないケースにおいても、人物の顔の領域の映像光制御ができる様、余裕を持たせるためである。 Even in cases where the person has not been fully upright, such that it is image light control area of ​​a person's face, in order to provide a margin.

【0037】なお、輝度調整領域が必要以上に広いと、 [0037] Incidentally, the unnecessarily wide luminance adjustment region,
正常なディスプレイ領域が不必要に狭くなるため、人物位置領域よりも輝度調整領域を広くする程度は、調整可能な構成とするのが望ましい。 Since the normal display area is narrowed unnecessarily, the extent to widen the luminance adjustment region than person position region, to an adjustment configurable desirable.

【0038】ステップS03の処理は、図2の輝度調整領域決定部で行う処理に対応する。 The process of step S03 corresponds to the processing performed by the brightness adjustment region determination unit of FIG.

【0039】最後に、ステップS04で、輝度調整領域の映像信号を黒レベル化して投写映像情報を生成する。 [0039] Finally, in step S04, generates the projected image information and black level of the video signal of the luminance adjustment region.
具体的には映像光投写手段が本来投写する映像情報である映像入力信号35に対して、ステップS03で得た輝度調整領域信号34のタイミングで、黒レベルにクランプする処理を行い、投写映像信号36を得る。 The video input signal 35 is specifically a video information projected originally image light projecting means, at the timing of the luminance adjustment region signal 34 obtained in step S03, performs a process of clamping the black level, the projected image signal get a 36.

【0040】ここで、図4は、ある水平1ライン分の処理を示しているが、輝度調整領域信号34は、1フレーム分の時間保持し、映像入力信号35の各水平ラインごとに、輝度調整領域信号34のタイミングで黒レベルクランプ処理を行い、1フレーム分の投写映像信号36を得る。 [0040] Here, FIG. 4 shows a certain horizontal one line processing, luminance adjustment area signal 34 holds the one frame time, for each horizontal line of the video input signal 35, luminance perform black level clamping process at the timing of the adjustment area signal 34 to obtain a projected image signal 36 for one frame. その時のディスプレイには、黒レベル領域23が生ずるため、人物5の目に対する映像光の直接入射量が低減され、防眩効果が得られる。 The display at that time, since the black level region 23 occurs directly incident amount of the image light is reduced to the eye of the person 5, anti-glare effect.

【0041】以上、防眩処理の一実施例を説明したが、 [0041] While there has been described an embodiment of the anti-glare treatment,
本実施例の防眩処理方法は、ディスプレイ領域周辺で人物位置の水平方向位置を検出し、ディスプレイ領域のある水平範囲の映像光を黒レベルする方法であり、厳密にディスプレイ領域内の人物位置を検出する場合に比べ、 Anti-glare treatment method of this embodiment detects the horizontal position of the person located in the peripheral display region, a method of black level image light in the horizontal range of the display region, the person position strictly display region compared with the case of detection,
シンプルな処理で確実に防眩効果を得ることができる特徴がある。 It has the characteristic that it is possible to obtain a reliable anti-glare effect a simple process.

【0042】なお、本発明は、前述した実施の形態に限定されるものではなく、本発明の要旨の範囲で各種の変形が可能である。 [0042] The present invention is not limited to the above-described embodiments, and various modifications are possible in the scope of the present invention.

【0043】たとえば、撮像手段の、ディスプレイ領域周囲下部領域20のみを撮像領域としてもよい。 [0043] For example, the imaging means, only the display region surrounding the lower region 20 may be an imaging region.

【0044】また、撮像手段と処理部を投写型表示装置と別置し、処理部をパーソナルコンピューターで実現してもよい。 [0044] Further, by separately installed and projection display apparatus and the processing unit imaging means, it may be realized processor in a personal computer.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明が適用された、投写型表示装置の使用形態の概略説明図。 [1] The present invention is applied, schematic illustration of usage of the projection display device.

【図2】本実施例の投写型表示装置システムの機能ブロック図。 FIG. 2 is a functional block diagram of a projection display system of the present embodiment.

【図3】本実施例の防眩処理全体を示すフローチャート。 3 is a flowchart showing the entire anti-glare process of this embodiment.

【図4】本実施例の防眩処理の動作を示すタイミングチャート。 Figure 4 is a timing chart showing the operation of the anti-glare process of this embodiment.

【符号の説明】 DESCRIPTION OF SYMBOLS

1. 1. プロジェクター 2. The projector 2. CCDカメラ 3. CCD camera 3. ディスプレイ領域 4. Display area 4. スクリーン 5. Screen 5. 人物 6. Person 6. 映像光輝度調整領域 7. Image light brightness adjustment area 7. 観衆 11. Spectators 11. 投写型表示装置 12. Projection-type display device 12. 処理部 13. Processing unit 13. 映像光投写手段 14. Image light projection means 14. 撮像手段 15. Imaging means 15. 人物位置検出部 16. The person position detector 16. 輝度調整領域決定部 17. Brightness adjustment region determining unit 17. 映像光輝度調整部 18. Image light luminance adjusting unit 18. 映像入力 20. Video input 20. ディスプレイ領域周辺下部領域 22. Display area around the lower region 22. 全撮像領域 23. All the imaging region 23. 黒レベル領域 31. Black level region 31. 撮像信号 32.2値化スレッショルド 33. Imaging signal 32.2 binarization threshold 33. 人物位置信号 34. Person position signal 34. 輝度調整領域信号 35. Luminance adjustment region signal 35. 映像入力信号 36. The video input signal 36. 投写映像信号 The projected image signal

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 7識別記号 FI テーマコート゛(参考) G09G 5/00 550 G09G 5/00 550C H04N 5/74 H04N 5/74 Z Fターム(参考) 5C058 BA05 BA28 BB25 EA02 5C080 AA10 BB05 CC06 DD30 EE28 FF09 GG07 GG09 JJ01 JJ02 JJ06 JJ07 5C082 AA03 AA27 BA02 BA12 BA29 CA11 CA54 CA82 CB03 DA51 MM00 MM09 MM10 5G435 DD06 DD13 LL15 ────────────────────────────────────────────────── ─── of the front page continued (51) Int.Cl. 7 identification mark FI theme Court Bu (reference) G09G 5/00 550 G09G 5/00 550C H04N 5/74 H04N 5/74 Z F -term (reference) 5C058 BA05 BA28 BB25 EA02 5C080 AA10 BB05 CC06 DD30 EE28 FF09 GG07 GG09 JJ01 JJ02 JJ06 JJ07 5C082 AA03 AA27 BA02 BA12 BA29 CA11 CA54 CA82 CB03 DA51 MM00 MM09 MM10 5G435 DD06 DD13 LL15

Claims (9)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 ディスプレイ領域に映像光を投写する映像光投写手段と、前記ディスプレイ領域を撮像する撮像手段と、前記撮像手段によって得られた撮像情報から前記ディスプレイ領域に位置する人物の位置情報を検出する人物位置検出手段と、前記人物の位置情報から前記映像光の輝度調整領域を決定する輝度調整領域決定手段と、前記輝度調整領域の前記映像光の輝度を調整する映像光輝度調整手段と、を有することを特徴とする投写型表示装置。 And 1. A projecting image light means for projecting the image light to the display region, an imaging unit for imaging the display area, the position information of the person positioned in the display region from the image information obtained by said image pickup means a person position detection means for detecting a brightness adjustment region determining means for determining a luminance adjustment region of the image light from the positional information of the person, the image light intensity adjusting means for adjusting the luminance of the image light of the luminance adjustment area the projection display device characterized by having a.
  2. 【請求項2】 請求項1において、前記輝度調整領域決定手段は、前記人物位置検出手段が検出する人物位置と重複する領域を前記映像光の輝度調整範囲とすることを特徴とする投写型表示装置。 2. A method according to claim 1, wherein the brightness adjusting region determining means, a projection display, characterized by a region where the person position detection means overlaps with the person position detection and brightness adjustment range of the image light apparatus.
  3. 【請求項3】 請求項1において、前記撮像手段は、前記ディスプレイ領域とその周辺領域を撮像範囲とする事を特徴とする投写型表示装置。 3. The method of claim 1, wherein the imaging means, a projection display device, characterized in that for the display region and the peripheral region thereof and imaging range.
  4. 【請求項4】 請求項3において、前記人物位置検出手段は、前記撮像手段が撮像したディスプレイ領域下部の撮像情報を元に、ディスプレイ領域における人物位置の水平方向範囲の検出を行ない、 前記輝度調整範囲決定手段は、前記人物位置の水平方向範囲の前記ディスプレイ領域を輝度調整範囲とすることを特徴とする投写型表示装置。 4. The method of claim 3, wherein the person position detection means, based on imaging information of the lower display area in which the imaging means has captured, performs detection of the horizontal extent of a person position in the display area, the luminance adjustment range determining means, projection display apparatus characterized by a brightness adjustment range the display area in the horizontal direction range of the person position.
  5. 【請求項5】 請求項1において、前記映像光輝度調整手段は、前記輝度調整領域の前記映像光の輝度を黒レベルとすることを特徴とする投写型表示装置。 5. The method of claim 1, wherein the image light intensity adjusting means, the projection display device, characterized in that the luminance of the image light of the luminance adjustment region and the black level.
  6. 【請求項6】 投写型表示装置のディスプレイ領域の撮像情報に基づき、前記ディスプレイ領域に位置する人物の位置情報を検出するための人物位置検出制御情報と、 6. Based on the imaging information of the display area of ​​the projection display device, a person position detection control information for detecting the position information of the person positioned in the display area,
    前記人物の位置情報から前記投写型表示装置が投写する映像光の輝度調整領域を決定するための輝度調整領域決定制御情報と、前記輝度調整領域の前記映像光の輝度を調整するための映像光輝度調整制御情報と、を記憶したコンピュータ読取り可能な情報記憶媒体。 And luminance adjustment region determined control information for determining the brightness adjustment region of the image light in which the projection display device from the positional information of the person to project image light for adjusting the brightness of the image light of said luminance adjustment area luminance adjustment control data and computer-readable information storage medium storing.
  7. 【請求項7】 請求項6において、前記輝度調整領域決定制御情報は、前記ディスプレイ領域に位置する人物の位置に重複する領域を前記映像光の輝度制御範囲とする制御情報を含むことを特徴とする情報記憶媒体。 7. The method of claim 6, wherein the brightness adjustment region determined control information, and characterized in that it comprises a control information area that overlaps the position of the person positioned in the display region and brightness control range of the image light information storage medium.
  8. 【請求項8】 請求項6において、前記人物位置検出制御情報は、投写型表示装置のディスプレイ領域下部の画像情報を元に、ディスプレイ領域における人物位置の水平方向範囲の検出を行ない、 前記輝度調整範囲決定制御情報は、前記人物位置の水平方向範囲の前記ディスプレイ領域を輝度調整範囲とする制御情報を含むことを特徴とする情報記憶媒体。 8. The method of claim 6, wherein the person position detection control information, based on the image information of the lower display area of ​​the projection display device performs the detection of the horizontal range of the person position in the display area, the luminance adjustment range determining control information, the information storage medium characterized by including control information for the luminance adjustment range of the display area in the horizontal direction range of the person position.
  9. 【請求項9】 請求項6において、前記映像光輝度調整制御情報は、前記輝度調整領域の前記映像光の輝度を黒レベルとする制御情報を含むことを特徴とする情報記憶媒体。 9. The method of claim 6, wherein the image light intensity adjustment control information, the information storage medium characterized by including control information for the luminance of the image light of the luminance adjustment region and the black level.
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