Apparent depth of a patch of dynamic random noise within a static field of random dots.
Apparent depth of a patch of dynamic random noise within a static field of random dots.
复制标题
随机点静态场内动态随机噪声斑块的表观深度。
作者：
Yasuoka;A.;Kita;S. & Ishii;M.
如果它们的特征充分不同（纹理分离），则具有一个纹理的补丁在具有对比纹理的背景区域内表现为不同的感知实体。如果没有图片深度线索，如大小，补丁，这是一个小的封闭区域，可能会脱颖而出。顺便说一句，如果两个随机点的字段是相同的，除了在一个区域中的轻微位移是在快速交替呈现，该区域出现作为一个实体往复以上的背景（RDK）。有了这些现象，许多研究试图揭示几种类型的感知，如纹理，主观轮廓或运动。Klymenko et al.（1989）报道了当时间频率高时，闪烁区域作为背景出现，大多数研究没有关注深度知觉。本研究探讨在一个静态的随机点场的动态随机噪声补丁的表观深度。动态随机噪声涉及时空变化并刺激运动检测器。在这方面，它不同于闪烁刺激。进行实验以确定外观。用动态变化的随机点（2.5、5或10 fps）描绘不同的区域，用静态随机点描绘其余区域。每个点都是黑色背景上的白色。不同的区域对着3.7x3。7度我们要求受试者判断斑块的表观深度。结果表明，当动态随机噪声的刷新率为10 fps时，不同的区域倾向于通过孔径出现。进行另一实验以使用深度归零技术来估计感知深度。双目视差被用来抵消感知深度。我们发现，感知深度约为0.5-1.0弧分的双眼视差。
A patch with one texture appears as a distinct perceptual entity within a background region with contrasting texture if their features differ adequately (texture segregation). If there is no pictorial depth cue such as size, the patch, which is a small closed region, may stand out. Incidentally, if two fields of random dots that are identical except for a slight shift in a region are presented in rapid alternation, the region appears as an entity reciprocating above the background (RDK). With these phenomena, a number of studies have attempted to reveal several types of perception such as texture, subjective contour, or motion. While Klymenko et al.(1989) reported that a flickering region appeared as a background when the temporal frequency was high, most studies have not focused on depth perception. This study investigates apparent depth of a patch of dynamic random noise within a static field of random dots. Dynamic random noise involves spatiotemporal changes and stimulates motion detectors. In this regard, it differs from flickering stimuli. An experiment was conducted to determine the appearance. The disparate region was depicted with dynamically changed random dots (2.5, 5, or 10 fps) and the remaining region was depicted with static random dots. Each dot was white on a black background. The disparate region subtended 3.7 x3. 7 deg. We asked subjects to judge apparent depth of the patch. The results indicated that the disparate region tended to appear through an aperture if the refresh rate of dynamic random noise was 10 fps. Another experiment was conducted to estimate the perceived depth using a depth nulling technique. Binocular disparity was used to null the perceived depth. We found the perceived depth was about 0.5-1.0 arcmin of binocular disparity.