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GB/T 38665.1-2020: Information Technology - Gesture Interaction System - Part 1: General Technical Requirements Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 38665.1-2020: Information Technology - Gesture Interaction System - Part 1: General Technical Requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT38665.1-2020 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 35.240 L 60 Information Technology - Gesture Interaction System - Part 1: General Technical Requirements ISSUED ON: APRIL 28, 2020 IMPLEMENTED ON: NOVEMBER 01, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Terms and Definitions ... 4 4 Gesture Interaction System Framework ... 5 5 Functional Requirements ... 8 6 Performance Requirements ... 11 Bibliography ... 15 Information Technology - Gesture Interaction System - Part 1: General Technical Requirements1 ScopeThis Part of GB/T 38665 specifies the general functional requirements and performance requirements of the gesture interaction system. This Part is applicable to the development and testing of gesture interaction system.2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB/T 18976-2003 Human-Centered Design Processes for Interactive Systems GB/T 38665.2-2020 Information Technology – Gesture Interaction System – Part 2: System External Interface3 Terms and DefinitionsFor the purpose of this document, the terms and definitions given in GB/T 18976-2003 and the following apply. 3.1 Gesture The specific postures or actions performed by the user when using the upper limbs (including hands and arms) to express their interaction intentions. 3.2 Static gestures Gestures that express the interaction intentions by a static posture of the upper limbs. 3.3 Dynamic gestures Gestures that express interaction intentions by the motion of the upper limbs. interface between the modules. The link with arrows not only represents the interoperable interface between the modules, but also indicates the transmission direction of the gesture interaction information flow through the direction of the arrow. This Part only specifies the general technical requirements for gesture interaction systems. The gesture interaction system includes a gesture set module, a gesture recognition module, an interactive decision module, and a feedback module: a) The gesture set module is a module used by the computer system to implement the gesture set-related functions. It provides gesture template data to the gesture recognition module. The gesture set module also provides an interface related to gesture set management to the application. b) The gesture recognition module converts the gesture signal flow into gesture recognition results with certain semantics by matching the gesture signal flow obtained by the input device with the gesture template provided by the gesture set module. At the same time, the gesture recognition module also obtains information such as the gesture activation, gesture completion, gesture execution status, and gesture cancellation by processing the signal flow of the gesture. They are collectively called the gesture recognition information together with the gesture recognition result, and are output to the application, interaction decision module, and feedback module for further processing. The gesture recognition module also provides applications with related interfaces related to the management of the gesture recognition module. c) The interaction decision-making module is responsible for making interaction decisions based on the recognized gestures, and then gives gesture instructions to the application. The interaction decision module also provides an interface for binding gestures and gesture instructions to the application. d) The feedback module is responsible for converting the feedback information provided by the gesture recognition module and the application into information that may be processed by the output device, so as to finally output the processing result of the gesture interaction system to the user. 9 - The interface between the feedback module and the output device, through which the feedback module outputs feedback information that the hardware device may process to the output device; 10 - The interface between the output device and the user, through which the output device outputs the final feedback of the gesture interaction system to the user; 11 - The interface between the application and the gesture set module, through which the application manages the gesture set of the gesture set module. Figure 1 – Gesture Interaction System Framework5 Functional Requirements5.1 Gesture set module The functions of the gesture set module are as follows: a) At least one gesture set shall be provided, and each gesture set shall contain at least two gestures; b) The name and operation description of each gesture shall be provided; c) Service functions for adding and removing gesture sets should be provided for the applications; d) Service functions of adding and removing gesture of any gesture set should be provided to the application. EXAMPLE: The gesture set module provides a gesture set that contains two gestures of "five- finger fist" and "single-finger click". "Five-finger fist" means to bring up the menu, and "single- finger click" means selection. 5.2 Gesture recognition module The functions of the gesture recognition module are as follows: a) At least one gesture collection method shall be provided so that the gesture interaction system can perceive the user's gesture input behavior; EXAMPLE 1: Collect the user's gestures through the data gloves worn on the hand and convert them into data information of the key point position and posture change that can be processed by the computer. EXAMPLE 2: Collect the user's gestures through the camera and convert them into image or video data information that can be processed by the computer. EXAMPLE: After the "fist" gesture is bound to the browser application's "page turning" gesture instruction, the user may control the browser to perform "page turning" through the "fist" gesture. 5.4 Feedback module The functions of the feedback module are as follows: a) The user shall be informed of the gesture recognition results by at least one of visual, auditory, tactile or other feedback methods, see 5.4 of ISO/IEC 30113- 1:2015; EXAMPLE 1: The user performs a "fist" gesture, and when the gesture is recognized successfully, the display shows the "fist" gesture icon. EXAMPLE 2: The user performs a "fist" gesture, and when the gesture is recognized successfully, the speaker plays the sound "ding". EXAMPLE 3: The user performs a "fist" gesture, and when the gesture is recognized successfully, the smart watch worn on the wrist vibrates for 500ms. b) The user should be informed of the current gesture execution status by at least one of visual, auditory, tactile, or other feedback methods, see 5.3 of ISO/IEC 30113-1:2015; EXAMPLE 4: Informing the user of the current gesture input state through a prompt box, which is waiting for input, input, or input completion. EXAMPLE 5: The user is prompted with a voice such as “please input gesture” and “gesture input completed” to indicate the current gesture input status. c) Appropriate methods shall be used to let users know what gestures the current system can recognize and which application functions these gestures can perform; EXAMPLE 6: Prompt the user to perform a "fist" gesture by text or image, and the "fist" gesture shall control the browser to turn to the next page. d) It shall be able to receive the feedback request from the application and notify the user of the response result of the gesture in the application. EXAMPLE 7: After the user performs a "fist" gesture, the feedback module receives the browser's feedback request and controls the output device to output the browser's page turning response to the user. gesture signals that the gesture recognition module can input per second. c) When the gesture recognition algorithm is discrete, the accuracy rate of gesture recognition shall meet the following requirements: 1) When the number of the gestures in the gesture set is ≤ 5, the accuracy rate of the gesture recognition shall be no less than 85%; 2) When the number of gestures in the gesture set is > 5 and ≤ 10, the accuracy rate of gesture recognition shall be no less than 80%; 3) When the number of gestures in the gesture set is >10, the accuracy rate of gesture recognition shall be no less than 75%. d) When the gesture recognition algorithm is continuous, the accuracy rate of gesture recognition shall meet the following requirements: 1) When the number of the gestures in the gesture set is ≤ 5, the accuracy rate of the gesture recognition shall be no less than 80%; 2) When the number of gestures in the gesture set is > 5 and ≤ 10, the accuracy rate of gesture recognition shall be no less than 75%; 3) When the number of gestures in the gesture set is > 10, the accuracy rate of gesture recognition shall be no less than 70%. NOTE 2: The accuracy rate of gesture recognition is the ratio between the number of gestures correctly recognized by the gesture recognition module and the number of all input gestures. e) When the gesture recognition algorithm is discrete, the duration of gesture recognition shall meet the following requirements: 1) When the number of gestures in the gesture set is ≤5, the duration of gesture recognition shall be no greater than 300ms; 2) When the number of gestures in the gesture set is > 5 and ≤ 10, the duration of gesture recognition shall be no greater than 600ms; 3) When the number of gestures in the gesture set is >10, the duration of gesture recognition shall be no greater than 900ms. f) When the gesture recognition algorithm is continuous, the duration of gesture recognition shall meet the following requirements: 1) When the number of gestures in the gesture set is ≤5, the duration of gesture recognition shall be no greater than 500ms; ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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