WO2018120929A1 - Clear and smooth image playback control method based on vr glasses - Google Patents
Clear and smooth image playback control method based on vr glasses Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/122—Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/144—Processing image signals for flicker reduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
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- the invention belongs to the field of virtual VR glasses control, and in particular relates to a clear and smooth playback control method based on VR glasses images.
- VR glasses use a head-mounted display device to close a person's vision and hearing to the outside world, and guide the user to create a feeling in a virtual environment.
- the display principle is that the left and right eye screens respectively display the images of the left and right eyes, and the human eye obtains such a difference information and generates a stereoscopic effect in the mind.
- most of the existing VR glasses can not be automatically adjusted according to the eyeball situation, and manual adjustment is needed. This is easy to have errors.
- the adjusted image is not quite compatible with the human eyeball. After all, the human body feels less accurate and easy to wear. Eye fatigue occurs for a while; at the same time, there are still some problems in the smoothness of the existing VR glasses. Similarly, the user is prone to visual fatigue due to smoothness problems.
- the present invention provides a clear and smooth playback control method based on VR glasses, which can realize adaptive adjustment of VR glasses according to the user's eye condition, while keeping the video images playing smoothly, so that the user's eyes are not easy to appear. Fatigue, better protect the user's eyes and increase the user experience.
- a clear and smooth playback control method based on VR glasses comprising: adjusting the relative position of the lens of the VR glasses and the human eyeball to make the image clear in the human eyeball, and smoothing the image playback by processing the number of frames of the playback image.
- the steps of adjusting the relative positions of the lens of the VR glasses and the human eyeball include the following:
- the adaptive adjustment module dynamically adjusts the lens position of the VR glasses according to the position and the visual condition of the human eye, so that the object image in the lens display screen exhibits sharpness in the human eyeball.
- the specific detecting step includes: the eyeball curvature detecting module identifies the human eyeball position, and acquires the curvature parameter of the human eyeball.
- steps S2 and S3 the specific steps include the following:
- the adaptive adjustment module acquires the position of the human eyeball, and determines whether the center position of the human eyeball coincides with the center position of the lens in the VR glasses; if it coincides, the process continues with S42. If not, the adaptive adjustment module controls the lens position to move to and The center position of the human eyeball coincides;
- the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens.
- Object image If abnormal, the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens.
- the adaptive adjustment module adjusts the lens according to the position of the human eye and the condition of the eyesight
- the light emitted by the lens is controlled to emit light for a short time and the brightness of the light is slowly increased.
- the user of myopia needs to remove the glasses when wearing the VR glasses for a long time.
- the V glasses can adjust the position of the lens according to the eyesight condition of the eye to make the object image clear, it is easy for the user to contact the clear and bright objects to be visually fatigued. Some people are even prone to tearing, and the light is delayed for a short time and the brightness is slowly increased. This is to make the eye have time to adapt to the clear changes of the image, to some extent protect the eyeball and reduce visual fatigue.
- the reference value of the number of frames to be displayed is dynamically set according to the condition of the human eyeball, so that the eyeball condition is considered in the smooth playback based on the video image, and the eyeball curvature detecting module detects the human eyeball condition at this time.
- the reference value combined with the correlation time of the video image frame, makes the user's eyes not prone to visual fatigue because the video image is faster or slower. If the stored number of frames to be displayed is a reference value, the threshold is 0; If it is less than this reference value, the threshold is increased to be greater than 0, indicating that the waiting is increased, and the display is slowed down. If it is greater than the reference value, the value is decreased to be less than 0, indicating that the waiting is reduced and the display is accelerated.
- the light emitted from the lens is appropriately reduced in brightness when the frame display is accelerated.
- the settings here are also designed to protect the eye and reduce visual fatigue.
- the present invention has the beneficial effects:
- Figure 1 Schematic diagram 1 of the embodiment of the present invention
- FIG. 2 is a schematic structural view 2 of an embodiment of the present invention.
- FIG. 3 is a third schematic structural view of an embodiment of the present invention.
- a clear and smooth playback control method based on VR glasses comprising: adjusting the relative position of the lens of the VR glasses and the human eyeball to make the image clear in the human eyeball, and smoothing the image playback by processing the number of frames of the playback image.
- the steps of adjusting the relative positions of the lens of the VR glasses and the human eyeball include the following:
- the adaptive adjustment module dynamically adjusts the lens position of the VR glasses according to the position and the visual condition of the human eye, so that the object image in the lens display screen exhibits sharpness in the human eyeball.
- the specific detecting step includes: the eyeball curvature detecting module identifies the human eyeball position, and acquires the curvature parameter of the human eyeball.
- steps S2 and S3 the specific steps include the following:
- the adaptive adjustment module acquires the position of the human eyeball, and determines whether the center position of the human eyeball coincides with the center position of the lens in the VR glasses; if it coincides, the process continues with S42. If not, the adaptive adjustment module controls the lens position to move to and The center position of the human eyeball coincides;
- the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens.
- Object image If abnormal, the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens.
- the adaptive adjustment module adjusts the lens according to the position of the human eye and the condition of the eyesight, the light emitted by the lens is controlled to emit light for a short time and the brightness of the light is slowly increased.
- the specific steps for processing the number of frames of the played image include:
- the reference value of the number of frames to be displayed is dynamically set according to the condition of the human eye. If the number of frames to be displayed is a reference value, the threshold is 0; if less than the reference value, the threshold is increased to be greater than 0, indicating that the waiting is increased. The display is slowed down. If it is greater than this reference value, the value is reduced to less than 0, indicating that the waiting is reduced and the display is accelerated.
- the frame display When the frame display is accelerated, the light emitted from the lens is appropriately reduced in brightness.
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Abstract
Description
本发明属于虚拟VR眼镜控制领域，尤其涉及一种基于VR眼镜图像清晰顺畅播放控制方法。The invention belongs to the field of virtual VR glasses control, and in particular relates to a clear and smooth playback control method based on VR glasses images.
VR眼镜是利用头戴式显示设备将人的对外界的视觉、听觉封闭，引导用户产生一种身在虚拟环境中的感觉。其显示原理是左右眼屏幕分别显示左右眼的图像，人眼获取这种带有差异的信息后在脑海中产生立体感。但现有的VR眼镜大多实现不了依据眼球情况进行自动调节，需要人工手动调节，这样比较容易存在误差，调节后的镜像跟人体眼球还是不太匹配，毕竟人体感觉还是不太准确的，容易佩戴一段时间就出现眼睛疲惫；同时现有的VR眼镜在播放顺畅度上也还存在一些问题，同样用户看久了由于顺畅度问题也容易产生视觉疲劳。VR glasses use a head-mounted display device to close a person's vision and hearing to the outside world, and guide the user to create a feeling in a virtual environment. The display principle is that the left and right eye screens respectively display the images of the left and right eyes, and the human eye obtains such a difference information and generates a stereoscopic effect in the mind. However, most of the existing VR glasses can not be automatically adjusted according to the eyeball situation, and manual adjustment is needed. This is easy to have errors. The adjusted image is not quite compatible with the human eyeball. After all, the human body feels less accurate and easy to wear. Eye fatigue occurs for a while; at the same time, there are still some problems in the smoothness of the existing VR glasses. Similarly, the user is prone to visual fatigue due to smoothness problems.
发明内容Summary of the invention
为了克服现有技术存在的不足，本发明提供了一种基于VR眼镜图像清晰顺畅播放控制方法，它能够实现VR眼镜依据用户眼球情况自适应调节，同时保持视频图像播放顺畅，使用户眼睛不易出现疲劳，较好保护了用户眼睛，增加了用户体验感。In order to overcome the deficiencies of the prior art, the present invention provides a clear and smooth playback control method based on VR glasses, which can realize adaptive adjustment of VR glasses according to the user's eye condition, while keeping the video images playing smoothly, so that the user's eyes are not easy to appear. Fatigue, better protect the user's eyes and increase the user experience.
本发明采用的技术方案如下：The technical solution adopted by the present invention is as follows:
一种基于VR眼镜图像清晰顺畅播放控制方法，包括：通过调整VR眼镜的透镜与人体眼球的相对位置使图像清晰在人体眼球清晰显示，通过对播放图像帧数的处理使图像播放顺畅。A clear and smooth playback control method based on VR glasses, comprising: adjusting the relative position of the lens of the VR glasses and the human eyeball to make the image clear in the human eyeball, and smoothing the image playback by processing the number of frames of the playback image.
进一步地，调整VR眼镜的透镜与人体眼球的相对位置的步骤包括如下：Further, the steps of adjusting the relative positions of the lens of the VR glasses and the human eyeball include the following:
S1.通过眼球曲度检测模块检测人体眼球位置与视力情况；S1. detecting the position and vision of the human eye by the eye curvature detecting module;
S2.将获取的人体眼球位置与视力情况传输给自适应调整模块；S2. transmitting the acquired eyeball position and vision condition to the adaptive adjustment module;
S3.自适应调整模块根据人体眼球位置与视力情况动态调整VR眼镜的透镜位置，使镜片显示屏中的物象在人体眼球内呈现清晰度。S3. The adaptive adjustment module dynamically adjusts the lens position of the VR glasses according to the position and the visual condition of the human eye, so that the object image in the lens display screen exhibits sharpness in the human eyeball.
进一步地，对于步骤S1，具体检测步骤包括：所述眼球曲度检测模块识别人体眼球位置，并获取人体眼球的曲度参数。Further, for step S1, the specific detecting step includes: the eyeball curvature detecting module identifies the human eyeball position, and acquires the curvature parameter of the human eyeball.
进一步地，对于步骤S2和S3，具体步骤包括如下：Further, for steps S2 and S3, the specific steps include the following:
S41.自适应调整模块获取人体眼球位置，并判断人体眼球的中心位置与VR眼镜内的透镜的中心位置是否重合；若重合则继续S42，若不重合则自适应调整模块控制透镜位置移至与人体眼球的中心位置重合； S41. The adaptive adjustment module acquires the position of the human eyeball, and determines whether the center position of the human eyeball coincides with the center position of the lens in the VR glasses; if it coincides, the process continues with S42. If not, the adaptive adjustment module controls the lens position to move to and The center position of the human eyeball coincides;
S42.判断人体眼球是否存在视力异常，若异常则自适应调整模块控制透镜沿与眼球的中心位置重合的轴线上移动一定距离，使眼球到透镜之间的距离能够保证眼球正常看清透镜反射出来的物象。S42. determining whether there is abnormal vision in the human eyeball. If abnormal, the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens. Object image.
进一步地，当自适应调整模块在依据人体眼球位置与视力情况对透镜调整过程中，同时对透镜发射出来的光线控制短时间延时发亮和光线亮度缓慢提高。近视的用户长时间佩戴眼镜而佩戴VR眼镜时需要拆除眼镜，虽然V眼镜能够根据其眼球视力情况控制调整透镜位置使其观看物象清晰，但立即让用户接触清晰光亮的物象较容易出现视觉疲劳，有些人甚至容易出现流泪情况，而让光线短时间延时发亮、亮度缓慢提高这样处理是为了让眼球有时间去适应物象清晰的变化，一定程度上保护了眼球，减轻视觉疲劳。Further, when the adaptive adjustment module adjusts the lens according to the position of the human eye and the condition of the eyesight, the light emitted by the lens is controlled to emit light for a short time and the brightness of the light is slowly increased. The user of myopia needs to remove the glasses when wearing the VR glasses for a long time. Although the V glasses can adjust the position of the lens according to the eyesight condition of the eye to make the object image clear, it is easy for the user to contact the clear and bright objects to be visually fatigued. Some people are even prone to tearing, and the light is delayed for a short time and the brightness is slowly increased. This is to make the eye have time to adapt to the clear changes of the image, to some extent protect the eyeball and reduce visual fatigue.
进一步地，对播放图像帧数的处理具体步骤包括：Further, the specific steps of processing the number of frames of the played image include:
对视频图像采集取帧，进行解码存储；Capture frames for video image acquisition, and decode and store them;
取帧计算当前帧的T等：若当前帧是第一帧，则T等为0，表示立即显示；否则，T等＝(T采-T′采)-(T-T上)+ε，其中T等表示当前帧的等待时间，T采表示当前帧的采集时间，T′采表示上一帧的采集时间，T表示当前时间，T上表示上一帧显示的时间，ε表示根据未显示的帧数变化的阈值；若计算出的等待时间是大于0，则继续等待，不做显示；若等于0，显示当前帧。Calculation of the current frame framing the like T: if the current frame is the first frame, the other is 0 T, represents displayed immediately; otherwise, like T = (T mining -T 'mining) - (a TT) + ε, where T etc., indicate that the waiting time of the current frame, T mining represents the acquisition time of the current frame, T 'collected represented on an acquisition time, T represents the current time, the T represents the time on a display, [epsilon] represents a frame according to not shown The threshold of the number change; if the calculated waiting time is greater than 0, it continues to wait and does not display; if equal to 0, the current frame is displayed.
进一步地，依据人体眼球情况动态设置待显示帧数的参考值，这样是为了在基于视频图像播放顺畅下考虑眼球情况，在眼球曲度检测模块检测出人体眼球情况后这时就可以确定出该参考值，而结合视频图像帧的相关时间，使用户眼睛不会因为看视频图像较快或较慢而容易出现视觉疲劳，如果存储的待显示的帧数是参考值，这个阈值就是0；若少于这个参考值就加大这个阈值使其大于0，表示增加等待，显示放慢，若大于这个参考值就减少这个值使其小于0，表示减少等待，显示加快。Further, the reference value of the number of frames to be displayed is dynamically set according to the condition of the human eyeball, so that the eyeball condition is considered in the smooth playback based on the video image, and the eyeball curvature detecting module detects the human eyeball condition at this time. The reference value, combined with the correlation time of the video image frame, makes the user's eyes not prone to visual fatigue because the video image is faster or slower. If the stored number of frames to be displayed is a reference value, the threshold is 0; If it is less than this reference value, the threshold is increased to be greater than 0, indicating that the waiting is increased, and the display is slowed down. If it is greater than the reference value, the value is decreased to be less than 0, indicating that the waiting is reduced and the display is accelerated.
进一步地，当帧显示加快时对透镜发射出来的光线适当降低亮度。此处的设置同样是为了保护眼球，减轻视觉疲劳。Further, the light emitted from the lens is appropriately reduced in brightness when the frame display is accelerated. The settings here are also designed to protect the eye and reduce visual fatigue.
与现有技术相比，本发明具有的有益效果：Compared with the prior art, the present invention has the beneficial effects:
1、实现VR眼镜依据用户眼球情况自适应调节；1. Realize VR glasses to adjust adaptively according to the user's eye condition;
2、保证了视频图像播放顺畅；2, to ensure that the video image playback is smooth;
3、较好保护了用户眼睛，增加了用户体验感，使用户眼睛不易出现疲劳。3, better protect the user's eyes, increase the user experience, so that the user's eyes are not easy to fatigue.
图1：本发明实施例的结构示意图一；Figure 1: Schematic diagram 1 of the embodiment of the present invention;
图2：本发明实施例的结构示意图二；2 is a schematic structural view 2 of an embodiment of the present invention;
图3：本发明实施例的结构示意图三。FIG. 3 is a third schematic structural view of an embodiment of the present invention.
下面结合附图和实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
实施例：Example:
一种基于VR眼镜图像清晰顺畅播放控制方法，包括：通过调整VR眼镜的透镜与人体眼球的相对位置使图像清晰在人体眼球清晰显示，通过对播放图像帧数的处理使图像播放顺畅。A clear and smooth playback control method based on VR glasses, comprising: adjusting the relative position of the lens of the VR glasses and the human eyeball to make the image clear in the human eyeball, and smoothing the image playback by processing the number of frames of the playback image.
如图1所示，调整VR眼镜的透镜与人体眼球的相对位置的步骤包括如下：As shown in FIG. 1, the steps of adjusting the relative positions of the lens of the VR glasses and the human eyeball include the following:
S1.通过眼球曲度检测模块检测人体眼球位置与视力情况；S1. detecting the position and vision of the human eye by the eye curvature detecting module;
S2.将获取的人体眼球位置与视力情况传输给自适应调整模块；S2. transmitting the acquired eyeball position and vision condition to the adaptive adjustment module;
S3.自适应调整模块根据人体眼球位置与视力情况动态调整VR眼镜的透镜位置，使镜片显示屏中的物象在人体眼球内呈现清晰度。S3. The adaptive adjustment module dynamically adjusts the lens position of the VR glasses according to the position and the visual condition of the human eye, so that the object image in the lens display screen exhibits sharpness in the human eyeball.
对于步骤S1，具体检测步骤包括：所述眼球曲度检测模块识别人体眼球位置，并获取人体眼球的曲度参数。For the step S1, the specific detecting step includes: the eyeball curvature detecting module identifies the human eyeball position, and acquires the curvature parameter of the human eyeball.
如图2所示，对于步骤S2和S3，具体步骤包括如下：As shown in FIG. 2, for steps S2 and S3, the specific steps include the following:
S41.自适应调整模块获取人体眼球位置，并判断人体眼球的中心位置与VR眼镜内的透镜的中心位置是否重合；若重合则继续S42，若不重合则自适应调整模块控制透镜位置移至与人体眼球的中心位置重合；S41. The adaptive adjustment module acquires the position of the human eyeball, and determines whether the center position of the human eyeball coincides with the center position of the lens in the VR glasses; if it coincides, the process continues with S42. If not, the adaptive adjustment module controls the lens position to move to and The center position of the human eyeball coincides;
S42.判断人体眼球是否存在视力异常，若异常则自适应调整模块控制透镜沿与眼球的中心位置重合的轴线上移动一定距离，使眼球到透镜之间的距离能够保证眼球正常看清透镜反射出来的物象。S42. determining whether there is abnormal vision in the human eyeball. If abnormal, the adaptive adjustment module controls the lens to move a certain distance along the axis coincident with the center position of the eyeball, so that the distance between the eyeball and the lens can ensure that the eyeball is normally reflected by the lens. Object image.
当自适应调整模块在依据人体眼球位置与视力情况对透镜调整过程中，同时对透镜发射出来的光线控制短时间延时发亮和光线亮度缓慢提高。When the adaptive adjustment module adjusts the lens according to the position of the human eye and the condition of the eyesight, the light emitted by the lens is controlled to emit light for a short time and the brightness of the light is slowly increased.
如图3所示，对播放图像帧数的处理具体步骤包括：As shown in FIG. 3, the specific steps for processing the number of frames of the played image include:
对视频图像采集取帧，进行解码存储；Capture frames for video image acquisition, and decode and store them;
取帧计算当前帧的T等：若当前帧是第一帧，则T等为0，表示立即显示；否则，T等＝(T采-T′采)-(T-T上)+ε，其中T等表示当前帧的等待时间，T采表示当前帧的采集时间，T′采 表示上一帧的采集时间，T表示当前时间，T上表示上一帧显示的时间，ε表示根据未显示的帧数变化的阈值；若计算出的等待时间是大于0，则继续等待，不做显示；若等于0，显示当前帧。Calculation of the current frame framing the like T: if the current frame is the first frame, the other is 0 T, represents displayed immediately; otherwise, like T = (T mining -T 'mining) - (a TT) + ε, where T etc., indicate that the waiting time of the current frame, T mining represents the acquisition time of the current frame, T 'collected represented on an acquisition time, T represents the current time, the T represents the time on a display, [epsilon] represents a frame according to not shown The threshold of the number change; if the calculated waiting time is greater than 0, it continues to wait and does not display; if equal to 0, the current frame is displayed.
依据人体眼球情况动态设置待显示帧数的参考值，如果存储的待显示的帧数是参考值，这个阈值就是0；若少于这个参考值就加大这个阈值使其大于0，表示增加等待，显示放慢，若大于这个参考值就减少这个值使其小于0，表示减少等待，显示加快。The reference value of the number of frames to be displayed is dynamically set according to the condition of the human eye. If the number of frames to be displayed is a reference value, the threshold is 0; if less than the reference value, the threshold is increased to be greater than 0, indicating that the waiting is increased. The display is slowed down. If it is greater than this reference value, the value is reduced to less than 0, indicating that the waiting is reduced and the display is accelerated.
当帧显示加快时对透镜发射出来的光线适当降低亮度。 When the frame display is accelerated, the light emitted from the lens is appropriately reduced in brightness.
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