




本發明是有關於一種顯示器的顯示機制,且特別是有關於一種顯示器、控制顯示器的方法以及顯示系統。The present invention relates to a display mechanism of a display, and in particular to a display, a method for controlling a display, and a display system.
數位看板(Electronic Billboards)是利用液晶顯示器(liquid crystal display,LCD)、電漿(Plasma)顯示器、發光二極體(light-emitting diode,LED)顯示器等數位顯示器為媒介,投放影片、動畫、圖像與文字等內容的看板平台。基於不同的場地,數位看板顯示的多媒體影音內容可包含各種風格的文字、圖片或影片輪播,以進行資訊公告以及教育推廣等。據此,數位看板成為目前最佳的資訊傳播媒體平台,也是因地制宜的行銷平台。然而,如何在吸引群眾與節能之間取得平衡為目前商討的課題之一。Electronic billboards are billboard platforms that use liquid crystal display (LCD), plasma display, light-emitting diode (LED) display and other digital displays as media to display videos, animations, images and text. Based on different venues, the multimedia audio-visual content displayed on digital billboards can include various styles of text, pictures or video carousels for information announcements and educational promotions. Therefore, digital billboards have become the best information dissemination media platform and a marketing platform that adapts to local conditions. However, how to strike a balance between attracting the crowd and saving energy is one of the current topics of discussion.
“先前技術”段落只是用來幫助了解本發明內容,因此在“先前技術”段落所揭露的內容可能包含一些沒有構成所屬技術領域中具有通常知識者所知道的習知技術。在“先前技術”段落所揭露的內容,不代表該內容或者本發明一個或多個實施例所要解決的問題,在本發明申請前已被所屬技術領域中具有通常知識者所知曉或認知。The "Prior Art" section is only used to help understand the content of the present invention. Therefore, the content disclosed in the "Prior Art" section may contain some knowledge that does not constitute the knowledge of the person with ordinary knowledge in the relevant technical field. The content disclosed in the "Prior Art" section does not mean that the content or the problems to be solved by one or more embodiments of the present invention have been known or recognized by the person with ordinary knowledge in the relevant technical field before the application of the present invention.
本發明提供一種顯示器、控制顯示器的方法以及顯示系統,可根據不同條件來動態調整背光模組的亮度。The present invention provides a display, a method for controlling the display, and a display system, which can dynamically adjust the brightness of the backlight module according to different conditions.
本發明的其他目的和優點可以從本發明所揭露的技術特徵中得到進一步的了解。Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.
為達上述之一或部份或全部目的或是其他目的,控制顯示器的方法,適於藉由顯示器的處理器來執行,控制顯示器的方法包括:接收影像資訊,影像資訊具有影像且影像具有多個影像幀;分析影像,以判斷影像中是否具有至少一物件;根據影像的所述多個影像幀,取得各影像幀中對應於物件的區塊,且辨識每一個區塊中的物件資訊,其中物件資訊包括物件種類、參考點座標以及影像幀時間;根據物件種類,取得目標物件的數量,其中目標物件的定義為所述物件的物件種類為目標種類;根據影像幀時間以及參考點座標,計算每一個目標物件的移動速度;以及根據所述數量以及移動速度,控制顯示器的背光模組的亮度。To achieve one or part or all of the above purposes or other purposes, a method for controlling a display is suitable for being executed by a processor of a display, and the method for controlling a display includes: receiving image information, the image information having an image and the image having multiple image frames; analyzing the image to determine whether the image has at least one object; obtaining a block corresponding to the object in each image frame according to the multiple image frames of the image, and identifying the object information in each block, wherein the object information includes object type, reference point coordinates and image frame time; obtaining the number of target objects according to the object type, wherein the target object is defined as the object type of the object as the target type; calculating the moving speed of each target object according to the image frame time and the reference point coordinates; and controlling the brightness of the backlight module of the display according to the number and the moving speed.
在本發明的一實施例中,在取得各影像幀中對應於物件的區塊之後,所述控制顯示器的方法更包括:標註所述區塊的物件種類。In one embodiment of the present invention, after obtaining the block corresponding to the object in each image frame, the method of controlling the display further includes: marking the object type of the block.
在本發明的一實施例中,所述控制顯示器的方法更包括:識別每一個目標物件對應的區塊的顏色資訊;以及根據顏色資訊控制顯示器的背光模組的亮度。In one embodiment of the present invention, the method for controlling the display further includes: identifying the color information of the block corresponding to each target object; and controlling the brightness of the backlight module of the display according to the color information.
在本發明的一實施例中,所述物件資訊更包括區塊的長度,所述控制顯示器的方法更包括:根據每一個目標物件對應的區塊的長度,計算每一個目標物件的高度;以及根據高度控制顯示器的背光模組的亮度。In one embodiment of the present invention, the object information further includes the length of the block, and the method for controlling the display further includes: calculating the height of each target object according to the length of the block corresponding to each target object; and controlling the brightness of the backlight module of the display according to the height.
在本發明的一實施例中,所述控制顯示器的方法更包括:透過聲音感測器接收聲音資料;透過處理器根據聲音資料計算環境音量;以及根據環境音量控制顯示器的背光模組的亮度。In one embodiment of the present invention, the method for controlling a display further includes: receiving sound data through a sound sensor; calculating the ambient volume according to the sound data through a processor; and controlling the brightness of a backlight module of the display according to the ambient volume.
在本發明的一實施例中,控制顯示器的背光模組的亮度的步驟,更包括:判斷所述數量以及移動速度是否滿足限定條件;響應於限定條件被滿足,調高背光模組的亮度;以及響應於限定條件未被滿足,調低背光模組的亮度,其中,限定條件包括移動速度的速度範圍以及所述數量的最小數量限制。In one embodiment of the present invention, the step of controlling the brightness of the backlight module of the display further includes: determining whether the quantity and the moving speed meet the limiting conditions; in response to the limiting conditions being met, increasing the brightness of the backlight module; and in response to the limiting conditions not being met, decreasing the brightness of the backlight module, wherein the limiting conditions include the speed range of the moving speed and the minimum quantity limit of the quantity.
在本發明的一實施例中,控制顯示器的背光模組的亮度的步驟包括:傳送調光指令至電源供應器,使得電源供應器控制背光模組的亮度,其中調光指令取決於所述數量以及移動速度。In one embodiment of the present invention, the step of controlling the brightness of the backlight module of the display includes: transmitting a dimming instruction to the power supply so that the power supply controls the brightness of the backlight module, wherein the dimming instruction depends on the quantity and the moving speed.
在本發明的一實施例中,所述控制顯示器的方法,更包括:根據目標物件的數量以及影像幀時間的至少其中之一,傳送關閉指令至電源供應器,使得電源供應器停止供電至背光模組,以關閉背光模組。In one embodiment of the present invention, the method for controlling the display further includes: sending a shutdown command to the power supply according to at least one of the number of target objects and the image frame time, so that the power supply stops supplying power to the backlight module to shut down the backlight module.
在本發明的一實施例中,所述物件資訊更包括區塊的長度以及寬度,所述控制顯示器的方法更包括:根據每一個目標物件對應的區塊的長度,計算每一個目標物件的高度;根據參考點座標、長度以及寬度,識別每一個目標物件對應的區塊的顏色資訊;根據聲音資料計算環境音量;以及根據所述數量、移動速度、高度、顏色資訊以及環境音量,控制顯示器的背光模組的亮度。In one embodiment of the present invention, the object information further includes the length and width of the block, and the method for controlling the display further includes: calculating the height of each target object according to the length of the block corresponding to each target object; identifying the color information of the block corresponding to each target object according to the reference point coordinates, length and width; calculating the ambient volume according to the sound data; and controlling the brightness of the backlight module of the display according to the quantity, moving speed, height, color information and ambient volume.
本發明的顯示器包括:影像感測器,用以感測影像資訊,影像資訊具有影像且影像具有多個影像幀;背光模組;以及處理器,耦接至影像感測器以及背光模組。處理器用以執行所述控制顯示器的方法。The display of the present invention includes: an image sensor for sensing image information, the image information has an image and the image has multiple image frames; a backlight module; and a processor coupled to the image sensor and the backlight module. The processor is used to execute the method for controlling the display.
本發明的顯示系統包括:雲端伺服器以及至少一顯示器。雲端伺服器用以設定並推播限定條件。至少一顯示器用以接收限定條件。至少一顯示器包括:影像感測器,用以感測影像資訊,影像資訊具有影像且影像具有多個影像幀;背光模組;以及處理器,耦接至影像感測器以及背光模組。處理器用以執行所述控制顯示器的方法。The display system of the present invention includes: a cloud server and at least one display. The cloud server is used to set and push the limiting conditions. The at least one display is used to receive the limiting conditions. The at least one display includes: an image sensor for sensing image information, the image information has an image and the image has multiple image frames; a backlight module; and a processor coupled to the image sensor and the backlight module. The processor is used to execute the method of controlling the display.
基於上述,本發明的實施例至少具有以下其中一個優點或功效。本發明的實施例可根據目標物件的數量以及移動速度等來動態調整背光模組的亮度,在目標物件的數量以及移動速度滿足限定條件的情況下調整背光模組以提高吸引效果,並在目標物件的數量以及移動速度未滿足限定條件的情況下使得背光模組進入節電模式。Based on the above, the embodiments of the present invention have at least one of the following advantages or effects. The embodiments of the present invention can dynamically adjust the brightness of the backlight module according to the number and moving speed of the target objects, adjust the backlight module to improve the attraction effect when the number and moving speed of the target objects meet the specified conditions, and make the backlight module enter the power saving mode when the number and moving speed of the target objects do not meet the specified conditions.
為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。In order to make the above features and advantages of the present invention more clearly understood, the following is a detailed description of the embodiments with the accompanying drawings.
100:顯示器100: Display
110:處理器110: Processor
120:影像感測器120: Image sensor
130:背光模組130: Backlight module
140:儲存器140: Storage
30:物件30: Objects
31、32:邊界框31, 32: Bounding box
310:第一影像幀310: First image frame
320:第二影像幀320: Second image frame
311、312:點311, 312: points
400:雲端伺服器400: Cloud Server
410:聲音感測器410: Sound sensor
420:電源供應器420: Power supply
430:位置感測器430: Position sensor
a1、a2:長度a1, a2: length
b1、b2:寬度b1, b2: width
S205~S230:步驟S205~S230: Steps
圖1是依照本發明一實施例的顯示器的方塊圖。FIG1 is a block diagram of a display according to an embodiment of the present invention.
圖2是依照本發明一實施例的控制顯示器的方法流程圖。Figure 2 is a flow chart of a method for controlling a display according to an embodiment of the present invention.
圖3A及圖3B分別是依照本發明一實施例的處理器辨識第一影像幀以及第二影像幀的物件資訊的示意圖。FIG. 3A and FIG. 3B are schematic diagrams of a processor according to an embodiment of the present invention identifying object information of a first image frame and a second image frame, respectively.
圖4是依照本發明另一實施例的顯示系統的方塊圖。FIG4 is a block diagram of a display system according to another embodiment of the present invention.
有關本發明之前述及其他技術內容、特點與功效,在以下配合參考圖式之一較佳實施例的詳細說明中,將可清楚的呈現。以下實施例中所提到的方向用語,例如:上、下、左、右、前或後等,僅是參考附加圖式的方向。因此,使用的方向用語是用來說明並非用來限制本發明。並且,以下實施例中所提到的「耦接」一詞可指任何直接或間接的連接手段。The above-mentioned other technical contents, features and effects of the present invention will be clearly presented in the detailed description of the preferred embodiment with reference to the following drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and are not used to limit the present invention. In addition, the word "coupling" mentioned in the following embodiments may refer to any direct or indirect connection means.
圖1是依照本發明一實施例的顯示器的方塊圖。請參照圖1,顯示器100包括處理器110、影像感測器120、背光模組130以及儲存器140。處理器110耦接至影像感測器120、背光模組130以及儲存器140。FIG1 is a block diagram of a display according to an embodiment of the present invention. Referring to FIG1 , the
處理器110例如為中央處理單元(Central Processing Unit,CPU)、物理處理單元(Physics Processing Unit,PPU)、可程式化之微處理器(Microprocessor)、嵌入式控制晶片、數位訊號處理器(Digital Signal Processor,DSP)、特殊應用積體電路(Application Specific Integrated Circuits,ASIC)或其他類似裝置。處理器110可控制影像感測器120以及背光模組130的作動。The
影像感測器120可以是採用了電荷耦合元件(Charge coupled device,CCD)鏡頭、互補式金氧半電晶體(Complementary metal oxide semiconductor transistors,CMOS)鏡頭的攝影機、照相機等。The
背光模組(backlight module)130為顯示器100的發光源,其用以提供照明光束給顯示器100的顯示面板。顯示面板例如為液晶顯示(liquid crystal display,LCD)面板。照明光束通過顯示面板後形成影像光束。藉由在顯示面板的背面配置一個可投射出照明光束的背光模組130,使影像光束被投射出顯示器100,以將欲投放的多媒體影音內容傳遞到使用者的眼中。The
儲存器140可採用任意型式的固定式或可移動式隨機存取記憶體(Random Access Memory,RAM)、唯讀記憶體(Read-Only Memory,ROM)、快閃記憶體(Flash memory)、安全數位卡、硬碟或其他類似裝置或這些裝置的組合來實現。儲存器140中儲存有至少一程式碼片段,上述程式碼片段在被安裝後,會由處理器110來執行下述控制顯示器的方法。The
圖2是依照本發明一實施例的控制顯示器的方法流程圖。請同時參照圖1及圖2,在步驟S205中,處理器110接收來自影像感測器120的影像資訊。在此,影像資訊例如為影像信號。影像資訊的內容具有影像,且所述影像具有多個影像幀。在本實施例中,影像感測器120例如設置於鄰近顯示器100的顯示面板的位置,用以取得顯示面板的前方的影像,並將所述影像對應的影像資訊傳遞至處理器110。在一實施例中,影像感測器120也可為設置於顯示器100所在地點的攝影機、監視器等,例如,原先已設置於圖書館或商場等地點的監視器。FIG2 is a flow chart of a method for controlling a display according to an embodiment of the present invention. Please refer to FIG1 and FIG2 at the same time. In step S205, the
在步驟S210中,處理器110分析影像,以判斷影像中是否具有至少一物件。在此,可設計一個機器學習模型來識別影像中的特徵,以進行物件偵測。機器學習模型例如為卷積神經網路(convolutional neural network,CNN)機器學習模型。舉例而言,機器學習的訓練可透過事先自公開的媒體平台收集在公眾場所、圖書館、商辦大樓大廳、辦公室、會議室等場合的影像資料,並在這些影像資料的每一個影像幀中針對欲進行訓練的物件標註特徵後,利用這些已標註特徵的影像資料來訓練機器學習模型。在此,機器學習模型例如可採用YOLOv7演算法來實現物件偵測。In step S210, the
在一實施例中,機器學習模型以應用程式套件(例如為APK(Android application package))的形式設置在顯示器100的儲存器140中。在顯示器100啟動時,處理器110便會自動執行此機器學習模型來識別各影像幀中存在的一或多個物件。In one embodiment, the machine learning model is set in the
接著,在步驟S215中,處理器110根據所述影像的多個影像幀,取得各影像幀中對應於至少一物件的至少一區塊,且辨識每一個區塊中的物件資訊。在此,物件資訊包括物件種類、參考點座標以及影像幀時間。物件種類可以是「人類」、「車輛」、「動物」等。處理器110在找出各影像幀中所存在的物件之後,相應地劃分適當大小的區塊。在此,此區塊的大小可以是為包圍住此物件的最小範圍。在一實施例中,處理器110在透過機器學習模型偵測到物件後,會用一個矩形的邊界框(bounding box)來標註所偵測到的物件在影像幀中的所在位置。所述邊界框所框選出的範圍則可視為是物件對應的區塊。所述區塊除了可以是矩形之外,也可以是圓形、橢圓形或不規則形。在獲得邊界框之後,處處理器110基於邊界框來取得其對應的物件資訊,具體說明請參考圖3A及圖3B。Next, in step S215, the
圖3A及圖3B分別是依照本發明一實施例的處理器辨識第一影像幀以及第二影像幀的物件資訊的示意圖。在本實施例中,圖3A所示為第一影像幀310,圖3B所示為第二影像幀320。第一影像幀310在影像幀時間T1獲得,第二影像幀320在影像幀時間T2獲得,第一影像幀310與第二影像幀320中存在有相同的物件30,物件30在影像幀時間T1至影像幀時間T2之間的時間區段中產生了移動。在第一影像幀310中以長度a1且寬度b1的邊界框31來框選物件30。在第二影像幀320中以長度a2且寬度b2的邊界框32來框選物件30。FIG3A and FIG3B are schematic diagrams of a processor according to an embodiment of the present invention identifying object information of a first image frame and a second image frame, respectively. In this embodiment, FIG3A shows a
處理器110會分別在第一影像幀310的邊界框31與第二影像幀320的邊界框32上選取一特定點做為參考點,上述特定點例如可位於邊界框31的幾何中心或周圍。如圖3A與圖3B所示,在邊界框31、32的形狀為矩形的情況下(矩形區塊),處理器110分別以邊界框31、32的左上角的點311、312做為參考點,並且在對應的物件資訊中記錄下所述參考點在影像幀中的X、Y座標值(參考點座標)。例如,在第一影像幀310對應於物件30的物件資訊中,將邊界框31的左上角的點311做為參考點,並記錄點311在第一影像幀310中的X、Y座標值(X1,Y1)。在第二影像幀320對應於物件30的物件資訊中,將邊界框32的左上角的點312做為參考點,並記錄點312在第二影像幀320中的X、Y座標值(X2,Y2)。The
在其他實施例中,在邊界框的形狀為圓形的情況下(圓形區塊),處理器110以圓形區塊的圓心作為參考點,並且在對應的物件資訊中記錄下所述參考點在影像幀中的X、Y座標值(參考點座標)。在邊界框的形狀為橢圓形的情況下(橢圓區塊),處理器110以橢圓形區塊的中心作為參考點,並且在對應的物件資訊中記錄下所述參考點在影像幀中的X、Y座標值(參考點座標)。在區塊的形狀為不規則形的情況下(不規則區塊),處理器110對不規則區塊執行邊緣偵測以找出其輪廓,進而在此輪廓上取出多個點做為參考點,並且在對應的物件資訊的參考點座標中記錄下所述多個參考點在影像幀中的X、Y座標值(參考點座標)。In other embodiments, when the shape of the bounding box is circular (circular block), the
在取得對應於物件的區塊之後,處理器110還可進一步透過機器學習模型來對每一個區塊標註對應的物件種類。例如,機器學習模型為多類別的分類器,可針對多種物件來進行識別並分類。在識別出物件並獲得其物件種類之後,標註各區塊的物件種類。After obtaining the blocks corresponding to the objects, the
之後,在步驟S220中,處理器110根據物件種類,取得目標物件的數量。在此,目標物件的定義為物件的物件種類為目標種類。在一實施例中,以目標種類為「人類」而言,處理器110會去計算物件種類標記為「人類」的數量來做為目標物件的數量。Afterwards, in step S220, the
在一實施例中,目標物件的數量計算可以設定為如下。處理器110進一步在影像感測器120的取像範圍內設定一偵測區,偵測區的範圍小於等於影像幀的範圍。例如,在圖3A及圖3B所示的實施例中,具體化為偵測區的範圍等於影像幀的範圍,即第一影像幀310與第二影像幀320的範圍。處理器110每一秒自影像感測器120接收影像資訊,再利用機器學習模型來偵測目標物件的所在位置。處理器110透過機器學習模型偵測到物件為目標物件,且目標物件的所在位置已進入偵測區內之後開始追蹤,並將目標物件的數量加1。而當處理器110透過機器學習模型偵測到目標物件的所在位置已不在偵測區內之後停止追蹤,並將目標物件的數量減1。In one embodiment, the calculation of the number of target objects can be set as follows. The
之後,在步驟S225中,處理器110根據影像幀時間以及參考點座標,計算每一個目標物件的移動速度。處理器110讀取同一個目標物件在不同影像幀的物件資訊,以獲得目標物件在不同影像幀的至少兩個影像幀時間以及至少兩個參考點座標。以圖3A及圖3B所示的實施例而言,圖3A的第一影像幀310的影像幀時間例如為T1,且目標物件的參考點座標為(X1,Y1)。圖3B的第二影像幀320的影像幀時間例如為T2,且目標物件的參考點座標為(X2,Y2)。據此,處理器110計算至少兩個影像幀時間的移動時間,計算至少兩個參考點座標的位移距離,以所述移動時間以及位移距離來計算目標物件的移動速度。Then, in step S225, the
之後,在步驟S230中,處理器110根據目標物件的數量以及每一個目標物件的移動速度,控制顯示器100的背光模組130的亮度。在一實施例中,儲存器140可儲存至少一組限定條件。所述限定條件可包括移動速度的速度範圍以及最小數量限制。最小數量限制用以限定目標物件的數量。例如,目標物件的數量需大於等於1個。速度範圍用以限定目標物件的移動速度。例如,移動速度大於等於1公尺/秒小於等於2公尺/秒。處理器110判斷所述數量以及移動速度是否滿足限定條件。例如,處理器110判斷目標物件的數量是否大於等於最小數量限制,移動速度是否位於速度範圍內。在此,處理器110可在計算完每一個目標物件在任意兩影像幀之間的移動速度之後,再計算這些移動速度的平均速度來做為最後進行判斷的移動速度。倘若目標物件的數量大於等於最小數量限制,並且移動速度位於速度範圍內,則判定符合限定條件。倘若目標物件的數量未大於最小數量限制,或者移動速度不在速度範圍內,則判定不符合限定條件。Thereafter, in step S230, the
另外,限定條件也可設定為如下。倘若目標物件的數量大於等於最小數量限制,並且其中一個或N個(N可為大於或等於2的整數)目標物件的移動速度位於速度範圍內,則判定符合限定條件。倘若目標物件的數量未大於最小數量限制,或者全部目標物件的移動速度皆不在速度範圍內,則判定不符合限定條件。In addition, the restriction condition can also be set as follows. If the number of target objects is greater than or equal to the minimum number limit, and the movement speed of one or N (N can be an integer greater than or equal to 2) of the target objects is within the speed range, the restriction condition is determined to be met. If the number of target objects is not greater than the minimum number limit, or the movement speed of all target objects is not within the speed range, the restriction condition is determined to be not met.
處理器110響應於限定條件被滿足,處理器110調高背光模組130的亮度。例如,背光模組130的亮度最暗到最亮可定義為0到100階。處理器110例如可將背光模組130的亮度由0階逐漸調整至70階來產生視覺上的吸引效果。處理器110響應於限定條件未被滿足,處理器110調低背光模組130的亮度(低耗電模式),由70階逐漸調整至10階,以降低能源消耗,提高顯示器100的使用壽命。此外,處理器110也可將背光模組130的亮度調整至最低亮度,或直接關閉。In response to the limited conditions being met, the
在另一實施例中,物件資訊還可包括區塊的長度(例如圖3A、圖3B所示的邊界框的長度a1、a2)。而限定條件還可包括高度限制。高度限制可為大於等於或小於等於某一高度,或是某一高度範圍。例如,某一資訊的目標客群為身高小於等於140公分的孩童,則可將限定條件設為至少一人的身高小於等於140公分。以圖3A而言,處理器110可根據長度a1以及第一影像幀310的之間的比例關係來計算物件30(目標物件)的高度。之後,處理器110根據目標物件的數量以及每一個目標物件的高度與移動速度,控制顯示器100的背光模組130的亮度。在所述數量滿足最小數量限制、移動速度滿足速度範圍以及高度滿足高度限制的情況下,判定限定條件被滿足。在最小數量限制、速度範圍以及高度限制至少其中一個未被滿足的情況下,判定限定條件未被滿足。In another embodiment, the object information may also include the length of the block (e.g., the lengths a1 and a2 of the bounding box shown in FIG. 3A and FIG. 3B). The limiting condition may also include a height limit. The height limit may be greater than or equal to or less than a certain height, or a certain height range. For example, if the target audience of a certain information is children whose height is less than or equal to 140 cm, the limiting condition may be set to at least one person whose height is less than or equal to 140 cm. In FIG. 3A , the
在另一實施例中,物件資訊還可包括區塊的顏色資訊。而限定條件還可包括顏色限制。處理器110可進一步識別每一個目標物件對應的區塊的顏色資訊。具體而言,以圖3A而言,物件資訊更包括區塊的長度以及寬度。在此,區塊的長度以及寬度即為邊界框31的長度a1以及寬度b1。處理器110根據物件30(目標物件)對應的邊界框31的長度a1與寬度b1的範圍,識別目標物件對應的區塊的顏色資訊。顏色資訊例如為人類的衣著顏色或車子的外觀顏色等。之後,處理器110根據目標物件的數量以及每一個目標物件的移動速度與顏色資訊,控制顯示器100的背光模組130的亮度。例如,某一廣告的目標客群穿著白色衣服的機率較高,則限定條件設定為目標物件為人類、人類的最小數量為1人、移動速度小於2公尺/秒、且至少一人的衣著顏色為白色。在最小數量限制、速度範圍以及顏色限制皆被滿足的情況下,判定限定條件被滿足。在最小數量限制、速度範圍以及顏色限制至少其中一個未被滿足的情況下,判定限定條件未被滿足。In another embodiment, the object information may also include color information of the block. The limiting condition may also include color restrictions. The
在另一實施例中,物件資訊還可包括環境音量。而限定條件還可包括音量限制。音量限制可為大於等於或小於等於某一音量(分貝),或是某一音量範圍。顯示器100透過聲音感測器接收聲音資料,並透過處理器110根據聲音資料計算環境音量。之後,處理器110根據目標物件的數量、每一個目標物件的移動速度以及環境音量,控制顯示器100的背光模組130的亮度。舉例而言,音量限制例如為大於等於80分貝。在最小數量限制、速度範圍以及音量限制皆被滿足的情況下,判定限定條件被滿足。在最小數量限制、速度範圍以及音量限制至少其中一個未被滿足的情況下,判定限定條件未被滿足。In another embodiment, the object information may also include the ambient volume. The limiting condition may also include a volume limit. The volume limit may be greater than or equal to or less than or equal to a certain volume (decibel), or a certain volume range. The
在另一實施例中,物件資訊包括物件種類、參考點座標、影像幀時間、區塊的長度與寬度、顏色資訊以及環境音量。處理器110基於數量、移動速度、高度、顏色資訊以及環境音量,控制顯示器100的背光模組130的亮度。In another embodiment, the object information includes object type, reference point coordinates, image frame time, length and width of the block, color information, and ambient volume. The
在一實施例中,可透過一雲端伺服器設定限定條件,並將限定條件推播至各個顯示器100。顯示器100可根據限定條件來決定處理器110所需記錄的物件資訊的內容。In one embodiment, the limiting conditions can be set through a cloud server and pushed to each
圖4是依照本發明另一實施例的顯示系統的方塊圖。圖4所示的顯示系統包括雲端伺服器400以及至少一顯示器100。雲端伺服器400用以設定並推播限定條件至顯示器100。在圖4中,顯示器100還進一步設置了聲音感測器410、電源供應器420以及位置感測器430。聲音感測器410用以接收聲音資料。聲音感測器410例如為麥克風、分貝感測器。位置感測器430例如是採用全球定位系統(Global Positioning System,GPS)的裝置,用以獲得當前顯示器100的所在位置。FIG4 is a block diagram of a display system according to another embodiment of the present invention. The display system shown in FIG4 includes a
電源供應器420用以供電至背光模組130。具體而言,處理器110傳送調光指令至電源供應器420,使得電源供應器420控制背光模組130的亮度。在此,調光指令取決於目標物件的數量以及移動速度。The
另外,處理器110還可進一步根據目標物件的數量以及影像幀時間的至少其中之一,傳送關閉指令至電源供應器420,使得電源供應器420停止供電至背光模組130,以關閉背光模組130。例如,處理器110在基於影像幀時間判定當前時間已超出規定的工作時間區間時,傳送關閉指令至電源供應器420來關閉背光模組130。即,在目前時間不在工作時間區間內,處理器110主動關閉背光模組130。或者,處理器110也可設定為在判定目標物件的數量為0的情況下,主動關閉背光模組130。In addition, the
舉例來說,假設雲端伺服器400推播了如表1所示的針對不同地點所設定的一組限定條件至顯示器100,則處理器110進一步設定為:在識別出各影像幀中的各物件之後,在其對應的物件資訊中記錄下所識別的物件類別、區塊尺寸(例如矩形區塊的長度與寬度;圓形區塊的半徑;橢圓區塊的長軸與短軸)、顏色資訊、環境音量以及顯示器100的所在位置。For example, assuming that the
如表1所示,限定條件A~C分別對應至三個地點,即會議室、圖書館、商辦大樓大廳。限定條件A~C的項目包括工作時間區間、最小數量限制、高度限制、速度範圍、音量限制以及顏色限制。As shown in Table 1, the constraints A~C correspond to three locations, namely the conference room, library, and office building lobby. The constraints A~C include working time range, minimum quantity limit, height limit, speed range, volume limit, and color limit.
處理器110用以判斷目前顯示器100的所在位置,以決定採用哪一個限定條件。並且,處理器110根據目前時間、所識別的目標物件的數量、移動速度、高度、顏色資訊以及環境音量,來決定是否調整背光模組130的亮度。The
以限定條件A而言,假設目前時間位於工作時間區間內,則偵測到的目標物件的數量須大於2,且至少其中一個目標物件的高度(例如身高)超過150公分,全部目標物件的平均移動速度小於1公尺/秒,環境音量小於80分貝以及至少其中一個目標物件的顏色為白色的情況下,判定滿足限定條件A。倘若其中一個項目不符合,則判定不滿足限定條件A。For condition A, assuming that the current time is within the working time range, the number of detected target objects must be greater than 2, and the height (e.g., body height) of at least one of the target objects must be greater than 150 cm, the average moving speed of all target objects must be less than 1 meter/second, the ambient volume must be less than 80 decibels, and the color of at least one of the target objects must be white. Condition A is considered to be met. If any of the items are not met, condition A is considered to be not met.
在顯示器100位於會議室的情況下,倘若目前時間、目標物件的數量、移動速度、高度、顏色資訊以及環境音量皆滿足限定條件A,則處理器110傳送用以調高亮度的調光指令至電源供應器420,使得電源供應器420控制背光模組130的亮度提升。倘若目前時間位於工作時間區間內,而目標物件的數量、移動速度、高度、顏色資訊以及環境音量中的至少其中一個未滿足限定條件A,則處理器110傳送用以調低亮度的調光指令至電源供應器420,使得電源供應器420控制背光模組130的亮度降低(尚未關閉)。而在目前時間不在工作時間區間內時,處理器110傳送關閉指令至電源供應器420,使得電源供應器420停止供電至背光模組130,以關閉背光模組130。限定條件B、C亦以此類推。In the case where the
綜上所述,本發明的實施例可根據目標物件的有無以及移動速度等是否滿足限定條件來動態調整背光模組的亮度,即在滿足限定條件的情況下調整背光模組以提高吸引效果,並在未滿足限定條件的情況下使得背光模組進入節電模式。此外,還可進一步設定在工作時間區間外,主動關閉背光模組。藉此,可在必要時主動吸引過路人群駐足,在不需要轉換為低耗電模式來降低能源消耗,以提高顯示器的使用壽命。並且,由於本發明的實施例的處理器是透過機器學習模型來辨識影像幀中的物件的特徵,非如現有技術是透過人臉辨識,因此,本發明的實施例的處理器無需蒐集人臉資訊,除了可保護人類的隱私權之外,且由於人臉資訊的資料量龐大,因此,本發明的實施例可大幅降低處理器的運算量,使處理器的處理時間降低,以使顯示器可即時投放多媒體內容。In summary, the embodiment of the present invention can dynamically adjust the brightness of the backlight module according to whether the target object exists and whether the moving speed meets the limited conditions, that is, when the limited conditions are met, the backlight module is adjusted to improve the attraction effect, and when the limited conditions are not met, the backlight module is made to enter the power saving mode. In addition, it can be further set to actively turn off the backlight module outside the working time range. In this way, when necessary, passers-by can be actively attracted to stop, and when not necessary, it can be converted to a low power consumption mode to reduce energy consumption and increase the service life of the display. Furthermore, since the processor of the embodiment of the present invention recognizes the features of objects in the image frame through a machine learning model, rather than through facial recognition as in the prior art, the processor of the embodiment of the present invention does not need to collect facial information. In addition to protecting human privacy, and since the amount of facial information is huge, the embodiment of the present invention can significantly reduce the amount of computation of the processor and the processing time of the processor, so that the display can instantly display multimedia content.
惟以上所述者,僅為本發明之較佳實施例而已,當不能以此限定本發明實施之範圍,即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。另外本發明的任一實施例或申請專利範圍不須達成本發明所揭露之全部目的或優點或特點。此外,摘要部分和標題僅是用來輔助專利文件搜尋之用,並非用來限制本發明之權利範圍。此外,本說明書或申請專利範圍中提及的“第一”、“第二”等用語僅用以命名元件(element)的名稱或區別不同實施例或範圍,而並非用來限制元件數量上的上限或下限。However, the above is only the preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description are still within the scope of the present invention. In addition, any embodiment or patent application of the present invention does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and title are only used to assist in searching patent documents, and are not used to limit the scope of rights of the present invention. In addition, the terms "first" and "second" mentioned in this specification or patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.
S205~S230:步驟S205~S230: Steps
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW112101306ATWI839073B (en) | 2023-01-12 | 2023-01-12 | Display, method for controlling display, and display system |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW112101306ATWI839073B (en) | 2023-01-12 | 2023-01-12 | Display, method for controlling display, and display system |
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| TWI839073Btrue TWI839073B (en) | 2024-04-11 |
| TW202429416A TW202429416A (en) | 2024-07-16 |
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| TW112101306ATWI839073B (en) | 2023-01-12 | 2023-01-12 | Display, method for controlling display, and display system |
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