CN114598858B - Color distribution method for improving visual comfort of stereoscopic video - Google Patents
Color distribution method for improving visual comfort of stereoscopic video Download PDFInfo
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- CN114598858B CN114598858B CN202210268063.XA CN202210268063A CN114598858B CN 114598858 B CN114598858 B CN 114598858B CN 202210268063 A CN202210268063 A CN 202210268063A CN 114598858 B CN114598858 B CN 114598858B
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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
- H04N13/324—Colour aspects
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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
- H04N13/385—Image reproducers alternating rapidly the location of the left-right image components on the display screens
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Abstract
The invention discloses a color distribution method for improving visual comfort of stereoscopic video, and belongs to the technical field of computer vision and image processing. The method comprises the steps of carrying out framing treatment on a 3D video to be treated to obtain each frame of RGB image of the video, wherein the obtained image can be regarded as consisting of a left view and a right view; converting the RGB image into color information under a corresponding CIELAB color space, and adjusting the values of the channels a and b to 0 to obtain a new left view and a new right view after graying; based on the color distribution method of transmitting color information to non-dominant eyes and gray information to dominant eyes, corresponding color information is presented to both eyes to obtain two different video contents. The color distribution scheme reduces the processing amount of the visual system for matching binocular color information on the basis of being closer to full-color perception, reduces the load of the visual system, and effectively improves the phenomenon of uncomfortable vision.
Description
Technical Field
The invention relates to a color distribution method for improving visual comfort of stereoscopic video, belonging to the field of computer vision and image processing.
Background
In recent years, stereoscopic three-dimensional (3D) technology has been rapidly developed. However, visual comfort has been one of the important factors affecting the development of stereoscopic display technology. If the problem is not improved or solved later, the development of stereoscopic display technology will be greatly affected. The time interleaving technique is a method frequently used in the three-dimensional stereoscopic display technique, in which left and right images are transferred to both eyes in a time-alternating manner, and at the same time, only one eye receives color information. Although the time-interleaved technique delivers all pixels of an image or video to each eye, visual discomfort is caused by the distortion of perceived depth that occurs easily due to the time delay between the view information received by both eyes, which is converted to spatial parallax by the vision system.
Studies have shown that during binocular color fusion, both eyes are much worse than one. Notably, since many people have a dominant eye, it is thought that the brain of a person habitually uses imaging of the dominant eye to analyze and locate objects, and the non-dominant eye to process colors, color information is preferably presented to the non-dominant eye.
Based on this, it is an object of the present invention to provide a color distribution method that improves the visual comfort of stereoscopic video. The color distribution method mainly presents color information on the non-dominant eye, so that the visual brain can better process the color information, thereby improving visual comfort.
Disclosure of Invention
The invention aims to provide a color distribution method for improving visual comfort of a stereoscopic video, which processes left (right) views of all frames in the stereoscopic video into colors, processes right (left) views of all frames into gray, and presents color information in the corresponding stereoscopic video to non-dominant eyes, wherein the gray information is presented to a dominant eye, so as to improve the visual comfort of the stereoscopic video, and specifically comprises the following steps:
step 1: carrying out framing treatment on the 3D video to be treated to obtain each frame of RGB image I of the video n Image I n Naming in order to ensure that the video content can be subsequently synthesized in the correct order and then reading the image I n Information I of (2) n (width,height)。
The image obtained at this time can be regarded as a left viewAnd right view->Two parts are made up, obtainable according to the principle of 3D images:
step 2: performing color characterization evaluation measurement on the experimental display, and performing RGB image I n Converting into color information under the corresponding LAB color space, and adjusting the values of the a and b channels to 0 to obtain a grey-scaled left viewAnd right side view
Step 3: color distribution method based on color information transferred to non-dominant eye and gray information transferred to dominant eye, corresponding color information is presented to both eyes to obtain two different video contents V (C L ,C R ) Wherein, the left view of all frames of the stereoscopic video is color, and the video with the right view of all frames being gray is set as V1 (C L ,C R ) The method comprises the steps of carrying out a first treatment on the surface of the The left view of all frames of the stereoscopic video is gray, and the video with the right view of all frames being color is set as V2 (C L ,C R )。
Wherein C is L ，C R Respectively left and right eye colors.
Preferably, in step 2 of the present invention, the original image I is retained when converting to CIELAB color space n Luminance information I of (1) n Luminance and store it in the L-channel, each image I n Corresponds to L x a x b x = (I) in CIELAB color space n Luminance, a, b), wherein a is the red-green channel and b is the yellow-blue channel, onlyChanging the value of a/b changes the hue of the image; when a or b is 0, they represent gray information, so that when the left/right view is grayed, the corresponding a or b channel value can be adjusted to 0.
The color space of the display is RGB, but the RGB color space depends on the device, and certain chromatic aberration exists when the same picture is displayed by different display devices. The CIELAB color space is a device independent color system that describes human visual perception in a digital manner. The method of the invention therefore performs a conversion of RGB into CIELAB color space in order to eliminate differences in the display of the same picture on different display devices.
Color information is presented to a non-dominant eye, and gray information is presented to a color distribution method of a dominant eye, so that the problem of color asymmetry of left and right eyes in a time interleaving technology is avoided; the method converts half of the color information into gray, reduces the processing capacity of the visual system for matching binocular color information, and can improve the visual comfort of the stereoscopic video.
The invention has the beneficial effects that:
(1) The method reduces the processing capacity of the vision system for binocular color information matching and reduces the load of the vision system.
(2) The method provided by the invention is closer to full-color perception in color perception degree, and does not influence depth perception of 3D video; the visual comfort of stereoscopic video can be improved.
(3) The method reduces the transmission amount and the processing amount of the 3D video because the color information of the 3D video is reduced.
Drawings
Fig. 1 is an example of an image obtained by framing a 3D video, divided into a left view and a right view.
The specific embodiment is as follows:
the present invention will be described in further detail with reference to specific examples, but the scope of the present invention is not limited to the above.
Example 1
A color distribution method for improving visual comfort of stereoscopic video comprises the following specific steps:
step 1: framing the 3D video to be processed (as shown in FIG. 1, left view is the left view of the 3D image, right view is the right view of the 3D image, and the processing of the video V1 and V2 is based on the left and right views shown in FIG. 1 to complete color distribution and coding) to obtain each frame of RGB image I of the video n The method comprises the steps of carrying out a first treatment on the surface of the Image I n Named sequentially to ensure that the video content V (C L ,C R ) Then read image I n Information I of (2) n (width,height)。
The image obtained at this time can be regarded as a left viewAnd right view->Two parts are made up, obtainable according to the principle of 3D images:
step 2: performing color characterization evaluation measurement on the experimental display, and performing RGB image I n Converting to a color system CIELAB color space which does not depend on equipment display, regulating CIELAB, and converting back to RGB display; in the conversion to LAB color space, the original image I is preserved because the brightness information affects the content of the image n Luminance information I of (1) n Luminance and store it in the L channel; each image I n RGB values of (a) correspond to L x a x b x = (I) in LAB color space n A, b); a is a red-green channel, b is a yellow-blue channel, and the hue of the image can be changed only by changing the value of a/b; when a or b is 0,all represent gray information, so when the left (right) view is grayed, the corresponding a or b channel value can be adjusted to 0; then CIELAB is converted back to RGB display after being regulated and controlled to obtain a left view after grayingAnd right view->
Step 3: color distribution method based on color information transferred to non-dominant eye and gray information transferred to dominant eye, corresponding color information is presented to both eyes to obtain two different video contents V (C L ,C R ). Wherein, the left view of all frames of the stereoscopic video is color, and the video with the right view of all frames being gray is set as V1 (C L ,C R ) The method comprises the steps of carrying out a first treatment on the surface of the The left view of all frames of the stereoscopic video is gray, and the video with the right view of all frames being color is set as V2 (C L ,C R )。
Wherein C is L ，C R Respectively left and right eye colors.
Claims (2)
1. A color distribution method for improving visual comfort of stereoscopic video, the method comprising the steps of
Step 1: carrying out framing treatment on the 3D video to be treated to obtain each frame of RGB image I of the video n Image I n Naming in order to ensure that the video content can be subsequently synthesized in the correct order and then reading the image I n Information I of (2) n (width,height)，
The image obtained at this time can be regarded as a left viewAnd right view->Two parts are made up, obtainable according to the principle of 3D images:
step 2: performing color characterization evaluation measurement on the experimental display, and performing RGB image I n Converting into color information under the corresponding LAB color space, and adjusting the values of the a and b channels to 0 to obtain a grey-scaled left viewAnd right view->
Step 3: color distribution method based on color information transferred to non-dominant eye and gray information transferred to dominant eye, corresponding color information is presented to both eyes to obtain two different video contents V (C L ,C R ) Wherein, the left view of all frames of the stereoscopic video is color, and the video with the right view of all frames being gray is set as V1 (C L ,C R ) The method comprises the steps of carrying out a first treatment on the surface of the The left view of all frames of the stereoscopic video is gray, and the video with the right view of all frames being color is set as V2 (C L ,C R )；
Wherein C is L ，C R Respectively left and right eye colors.
2. The color distribution method for improving visual comfort of stereoscopic video according to claim 1, wherein: in step 2, the original image I is reserved when the color space is converted into CIELAB color space n Luminance information I of (1) n Luminance and store it in the L-channel, each image I n Corresponds to L x a x b x = (I) in CIELAB color space n Luminance, a, b), wherein a is a red-green channel, b is a yellow-blue channel, and the hue of the image can be changed only by changing the value of a/b; when a or b is 0, they represent gray information, so that when the left/right view is grayed, the corresponding a or b channel value can be adjusted to 0.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986925A (en) * | 2014-06-05 | 2014-08-13 | 吉林大学 | Method for evaluating vision comfort of three-dimensional video based on brightness compensation |
| CN105721855A (en) * | 2016-03-18 | 2016-06-29 | 南京洛菲特数码科技有限公司 | Three-dimensional data drawing method, application thereof and three-dimensional image display method |
| RU2017125776A3 (en) * | 2017-07-18 | 2019-01-23 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986925A (en) * | 2014-06-05 | 2014-08-13 | 吉林大学 | Method for evaluating vision comfort of three-dimensional video based on brightness compensation |
| CN105721855A (en) * | 2016-03-18 | 2016-06-29 | 南京洛菲特数码科技有限公司 | Three-dimensional data drawing method, application thereof and three-dimensional image display method |
| RU2017125776A3 (en) * | 2017-07-18 | 2019-01-23 |
Non-Patent Citations (1)
| Title |
|---|
| 立体内容舒适视差范围研究;陈载清等;吉林大学学报(工学版);第43卷(第S1期);291-294 * |
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